diff --git a/src/CppParser/Bindings/CLI/AST.cpp b/src/CppParser/Bindings/CLI/AST.cpp
index 3aa914646..e1e5640fd 100644
--- a/src/CppParser/Bindings/CLI/AST.cpp
+++ b/src/CppParser/Bindings/CLI/AST.cpp
@@ -44,9 +44,9 @@ CppSharp::Parser::AST::NativeLibrary::NativeLibrary()
 
 ::System::String^ CppSharp::Parser::AST::NativeLibrary::GetSymbols(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::NativeLibrary*)NativePtr)->getSymbols(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((class ::CppSharp::CppParser::AST::NativeLibrary*)NativePtr)->getSymbols(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::AST::NativeLibrary::AddSymbols(::System::String^ s)
@@ -63,9 +63,9 @@ void CppSharp::Parser::AST::NativeLibrary::ClearSymbols()
 
 ::System::String^ CppSharp::Parser::AST::NativeLibrary::GetDependencies(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::NativeLibrary*)NativePtr)->getDependencies(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((class ::CppSharp::CppParser::AST::NativeLibrary*)NativePtr)->getDependencies(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::AST::NativeLibrary::AddDependencies(::System::String^ s)
@@ -167,14 +167,14 @@ void CppSharp::Parser::AST::NativeLibrary::Dependencies::set(::System::Collectio
 
 unsigned int CppSharp::Parser::AST::NativeLibrary::SymbolsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::NativeLibrary*)NativePtr)->getSymbolsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::NativeLibrary*)NativePtr)->getSymbolsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::NativeLibrary::DependenciesCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::NativeLibrary*)NativePtr)->getDependenciesCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::NativeLibrary*)NativePtr)->getDependenciesCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::Comment::Comment(class ::CppSharp::CppParser::AST::Comment* native)
@@ -223,9 +223,9 @@ CppSharp::Parser::AST::Comment::Comment(CppSharp::Parser::AST::Comment^ _0)
 CppSharp::Parser::AST::Comment::operator CppSharp::Parser::AST::Comment^(CppSharp::Parser::AST::CommentKind kind)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::CommentKind)kind;
-    auto __ret = (::CppSharp::CppParser::AST::Comment) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::Comment(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Comment((class ::CppSharp::CppParser::AST::Comment*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::Comment) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::Comment(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Comment((class ::CppSharp::CppParser::AST::Comment*)_____ret, true);
 }
 
 ::System::IntPtr CppSharp::Parser::AST::Comment::__Instance::get()
@@ -300,9 +300,9 @@ CppSharp::Parser::AST::BlockContentComment::BlockContentComment(CppSharp::Parser
 CppSharp::Parser::AST::BlockContentComment::operator CppSharp::Parser::AST::BlockContentComment^(CppSharp::Parser::AST::CommentKind Kind)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::CommentKind)Kind;
-    auto __ret = (::CppSharp::CppParser::AST::BlockContentComment) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::BlockContentComment(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::BlockContentComment((class ::CppSharp::CppParser::AST::BlockContentComment*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::BlockContentComment) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::BlockContentComment(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::BlockContentComment((class ::CppSharp::CppParser::AST::BlockContentComment*)_____ret, true);
 }
 
 CppSharp::Parser::AST::FullComment::FullComment(class ::CppSharp::CppParser::AST::FullComment* native)
@@ -344,9 +344,9 @@ CppSharp::Parser::AST::FullComment::FullComment()
 
 CppSharp::Parser::AST::BlockContentComment^ CppSharp::Parser::AST::FullComment::GetBlocks(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::FullComment*)NativePtr)->getBlocks(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::BlockContentComment((class ::CppSharp::CppParser::AST::BlockContentComment*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::FullComment*)NativePtr)->getBlocks(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::BlockContentComment((class ::CppSharp::CppParser::AST::BlockContentComment*)___ret);
 }
 
 void CppSharp::Parser::AST::FullComment::AddBlocks(CppSharp::Parser::AST::BlockContentComment^ s)
@@ -397,8 +397,8 @@ void CppSharp::Parser::AST::FullComment::Blocks::set(::System::Collections::Gene
 
 unsigned int CppSharp::Parser::AST::FullComment::BlocksCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::FullComment*)NativePtr)->getBlocksCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::FullComment*)NativePtr)->getBlocksCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::InlineContentComment::InlineContentComment(class ::CppSharp::CppParser::AST::InlineContentComment* native)
@@ -453,9 +453,9 @@ CppSharp::Parser::AST::InlineContentComment::InlineContentComment(CppSharp::Pars
 CppSharp::Parser::AST::InlineContentComment::operator CppSharp::Parser::AST::InlineContentComment^(CppSharp::Parser::AST::CommentKind Kind)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::CommentKind)Kind;
-    auto __ret = (::CppSharp::CppParser::AST::InlineContentComment) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::InlineContentComment(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::InlineContentComment((class ::CppSharp::CppParser::AST::InlineContentComment*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::InlineContentComment) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::InlineContentComment(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::InlineContentComment((class ::CppSharp::CppParser::AST::InlineContentComment*)_____ret, true);
 }
 
 bool CppSharp::Parser::AST::InlineContentComment::HasTrailingNewline::get()
@@ -507,9 +507,9 @@ CppSharp::Parser::AST::ParagraphComment::ParagraphComment()
 
 CppSharp::Parser::AST::InlineContentComment^ CppSharp::Parser::AST::ParagraphComment::GetContent(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::ParagraphComment*)NativePtr)->getContent(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::InlineContentComment((class ::CppSharp::CppParser::AST::InlineContentComment*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::ParagraphComment*)NativePtr)->getContent(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::InlineContentComment((class ::CppSharp::CppParser::AST::InlineContentComment*)___ret);
 }
 
 void CppSharp::Parser::AST::ParagraphComment::AddContent(CppSharp::Parser::AST::InlineContentComment^ s)
@@ -570,8 +570,8 @@ void CppSharp::Parser::AST::ParagraphComment::Content::set(::System::Collections
 
 unsigned int CppSharp::Parser::AST::ParagraphComment::ContentCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::ParagraphComment*)NativePtr)->getContentCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::ParagraphComment*)NativePtr)->getContentCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::BlockCommandComment::Argument::Argument(class ::CppSharp::CppParser::AST::BlockCommandComment::Argument* native)
@@ -683,9 +683,9 @@ CppSharp::Parser::AST::BlockCommandComment::BlockCommandComment(CppSharp::Parser
 
 CppSharp::Parser::AST::BlockCommandComment::Argument^ CppSharp::Parser::AST::BlockCommandComment::GetArguments(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::BlockCommandComment*)NativePtr)->getArguments(i);
-    auto ____ret = new class ::CppSharp::CppParser::AST::BlockCommandComment::Argument(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::BlockCommandComment::Argument((class ::CppSharp::CppParser::AST::BlockCommandComment::Argument*)____ret, true);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::BlockCommandComment*)NativePtr)->getArguments(i);
+    auto _____ret = new class ::CppSharp::CppParser::AST::BlockCommandComment::Argument(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::BlockCommandComment::Argument((class ::CppSharp::CppParser::AST::BlockCommandComment::Argument*)_____ret, true);
 }
 
 void CppSharp::Parser::AST::BlockCommandComment::AddArguments(CppSharp::Parser::AST::BlockCommandComment::Argument^ s)
@@ -714,9 +714,9 @@ CppSharp::Parser::AST::BlockCommandComment::BlockCommandComment(CppSharp::Parser
 CppSharp::Parser::AST::BlockCommandComment::operator CppSharp::Parser::AST::BlockCommandComment^(CppSharp::Parser::AST::CommentKind Kind)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::CommentKind)Kind;
-    auto __ret = (::CppSharp::CppParser::AST::BlockCommandComment) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::BlockCommandComment(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::BlockCommandComment((class ::CppSharp::CppParser::AST::BlockCommandComment*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::BlockCommandComment) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::BlockCommandComment(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::BlockCommandComment((class ::CppSharp::CppParser::AST::BlockCommandComment*)_____ret, true);
 }
 
 unsigned int CppSharp::Parser::AST::BlockCommandComment::CommandId::get()
@@ -767,8 +767,8 @@ void CppSharp::Parser::AST::BlockCommandComment::Arguments::set(::System::Collec
 
 unsigned int CppSharp::Parser::AST::BlockCommandComment::ArgumentsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::BlockCommandComment*)NativePtr)->getArgumentsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::BlockCommandComment*)NativePtr)->getArgumentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::ParamCommandComment::ParamCommandComment(class ::CppSharp::CppParser::AST::ParamCommandComment* native)
@@ -877,8 +877,8 @@ CppSharp::Parser::AST::TParamCommandComment::TParamCommandComment()
 
 unsigned int CppSharp::Parser::AST::TParamCommandComment::GetPosition(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::TParamCommandComment*)NativePtr)->getPosition(i);
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::TParamCommandComment*)NativePtr)->getPosition(i);
+    return ___ret;
 }
 
 void CppSharp::Parser::AST::TParamCommandComment::AddPosition([::System::Runtime::InteropServices::In, ::System::Runtime::InteropServices::Out] unsigned int% s)
@@ -928,8 +928,8 @@ void CppSharp::Parser::AST::TParamCommandComment::Position::set(::System::Collec
 
 unsigned int CppSharp::Parser::AST::TParamCommandComment::PositionCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::TParamCommandComment*)NativePtr)->getPositionCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::TParamCommandComment*)NativePtr)->getPositionCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::VerbatimBlockLineComment::VerbatimBlockLineComment(class ::CppSharp::CppParser::AST::VerbatimBlockLineComment* native)
@@ -1028,9 +1028,9 @@ CppSharp::Parser::AST::VerbatimBlockComment::VerbatimBlockComment()
 
 CppSharp::Parser::AST::VerbatimBlockLineComment^ CppSharp::Parser::AST::VerbatimBlockComment::GetLines(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::VerbatimBlockComment*)NativePtr)->getLines(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::VerbatimBlockLineComment((class ::CppSharp::CppParser::AST::VerbatimBlockLineComment*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::VerbatimBlockComment*)NativePtr)->getLines(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::VerbatimBlockLineComment((class ::CppSharp::CppParser::AST::VerbatimBlockLineComment*)___ret);
 }
 
 void CppSharp::Parser::AST::VerbatimBlockComment::AddLines(CppSharp::Parser::AST::VerbatimBlockLineComment^ s)
@@ -1081,8 +1081,8 @@ void CppSharp::Parser::AST::VerbatimBlockComment::Lines::set(::System::Collectio
 
 unsigned int CppSharp::Parser::AST::VerbatimBlockComment::LinesCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::VerbatimBlockComment*)NativePtr)->getLinesCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::VerbatimBlockComment*)NativePtr)->getLinesCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::VerbatimLineComment::VerbatimLineComment(class ::CppSharp::CppParser::AST::VerbatimLineComment* native)
@@ -1243,9 +1243,9 @@ CppSharp::Parser::AST::InlineCommandComment::InlineCommandComment()
 
 CppSharp::Parser::AST::InlineCommandComment::Argument^ CppSharp::Parser::AST::InlineCommandComment::GetArguments(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::InlineCommandComment*)NativePtr)->getArguments(i);
-    auto ____ret = new class ::CppSharp::CppParser::AST::InlineCommandComment::Argument(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::InlineCommandComment::Argument((class ::CppSharp::CppParser::AST::InlineCommandComment::Argument*)____ret, true);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::InlineCommandComment*)NativePtr)->getArguments(i);
+    auto _____ret = new class ::CppSharp::CppParser::AST::InlineCommandComment::Argument(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::InlineCommandComment::Argument((class ::CppSharp::CppParser::AST::InlineCommandComment::Argument*)_____ret, true);
 }
 
 void CppSharp::Parser::AST::InlineCommandComment::AddArguments(CppSharp::Parser::AST::InlineCommandComment::Argument^ s)
@@ -1319,8 +1319,8 @@ void CppSharp::Parser::AST::InlineCommandComment::Arguments::set(::System::Colle
 
 unsigned int CppSharp::Parser::AST::InlineCommandComment::ArgumentsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::InlineCommandComment*)NativePtr)->getArgumentsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::InlineCommandComment*)NativePtr)->getArgumentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::HTMLTagComment::HTMLTagComment(class ::CppSharp::CppParser::AST::HTMLTagComment* native)
@@ -1375,9 +1375,9 @@ CppSharp::Parser::AST::HTMLTagComment::HTMLTagComment(CppSharp::Parser::AST::HTM
 CppSharp::Parser::AST::HTMLTagComment::operator CppSharp::Parser::AST::HTMLTagComment^(CppSharp::Parser::AST::CommentKind Kind)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::CommentKind)Kind;
-    auto __ret = (::CppSharp::CppParser::AST::HTMLTagComment) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::HTMLTagComment(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::HTMLTagComment((class ::CppSharp::CppParser::AST::HTMLTagComment*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::HTMLTagComment) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::HTMLTagComment(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::HTMLTagComment((class ::CppSharp::CppParser::AST::HTMLTagComment*)_____ret, true);
 }
 
 CppSharp::Parser::AST::HTMLStartTagComment::Attribute::Attribute(class ::CppSharp::CppParser::AST::HTMLStartTagComment::Attribute* native)
@@ -1491,9 +1491,9 @@ CppSharp::Parser::AST::HTMLStartTagComment::HTMLStartTagComment()
 
 CppSharp::Parser::AST::HTMLStartTagComment::Attribute^ CppSharp::Parser::AST::HTMLStartTagComment::GetAttributes(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::HTMLStartTagComment*)NativePtr)->getAttributes(i);
-    auto ____ret = new class ::CppSharp::CppParser::AST::HTMLStartTagComment::Attribute(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::HTMLStartTagComment::Attribute((class ::CppSharp::CppParser::AST::HTMLStartTagComment::Attribute*)____ret, true);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::HTMLStartTagComment*)NativePtr)->getAttributes(i);
+    auto _____ret = new class ::CppSharp::CppParser::AST::HTMLStartTagComment::Attribute(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::HTMLStartTagComment::Attribute((class ::CppSharp::CppParser::AST::HTMLStartTagComment::Attribute*)_____ret, true);
 }
 
 void CppSharp::Parser::AST::HTMLStartTagComment::AddAttributes(CppSharp::Parser::AST::HTMLStartTagComment::Attribute^ s)
@@ -1557,8 +1557,8 @@ void CppSharp::Parser::AST::HTMLStartTagComment::Attributes::set(::System::Colle
 
 unsigned int CppSharp::Parser::AST::HTMLStartTagComment::AttributesCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::HTMLStartTagComment*)NativePtr)->getAttributesCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::HTMLStartTagComment*)NativePtr)->getAttributesCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::HTMLEndTagComment::HTMLEndTagComment(class ::CppSharp::CppParser::AST::HTMLEndTagComment* native)
diff --git a/src/CppParser/Bindings/CLI/CppParser.cpp b/src/CppParser/Bindings/CLI/CppParser.cpp
index 000a7d3f0..b0d2a4fe9 100644
--- a/src/CppParser/Bindings/CLI/CppParser.cpp
+++ b/src/CppParser/Bindings/CLI/CppParser.cpp
@@ -47,9 +47,9 @@ CppSharp::Parser::CppParserOptions::CppParserOptions()
 
 ::System::String^ CppSharp::Parser::CppParserOptions::GetArguments(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getArguments(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getArguments(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::CppParserOptions::AddArguments(::System::String^ s)
@@ -66,9 +66,9 @@ void CppSharp::Parser::CppParserOptions::ClearArguments()
 
 ::System::String^ CppSharp::Parser::CppParserOptions::GetCompilationOptions(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getCompilationOptions(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getCompilationOptions(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::CppParserOptions::AddCompilationOptions(::System::String^ s)
@@ -85,9 +85,9 @@ void CppSharp::Parser::CppParserOptions::ClearCompilationOptions()
 
 ::System::String^ CppSharp::Parser::CppParserOptions::GetSourceFiles(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSourceFiles(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSourceFiles(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::CppParserOptions::AddSourceFiles(::System::String^ s)
@@ -104,9 +104,9 @@ void CppSharp::Parser::CppParserOptions::ClearSourceFiles()
 
 ::System::String^ CppSharp::Parser::CppParserOptions::GetIncludeDirs(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getIncludeDirs(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getIncludeDirs(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::CppParserOptions::AddIncludeDirs(::System::String^ s)
@@ -123,9 +123,9 @@ void CppSharp::Parser::CppParserOptions::ClearIncludeDirs()
 
 ::System::String^ CppSharp::Parser::CppParserOptions::GetSystemIncludeDirs(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSystemIncludeDirs(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSystemIncludeDirs(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::CppParserOptions::AddSystemIncludeDirs(::System::String^ s)
@@ -142,9 +142,9 @@ void CppSharp::Parser::CppParserOptions::ClearSystemIncludeDirs()
 
 ::System::String^ CppSharp::Parser::CppParserOptions::GetDefines(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getDefines(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getDefines(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::CppParserOptions::AddDefines(::System::String^ s)
@@ -161,9 +161,9 @@ void CppSharp::Parser::CppParserOptions::ClearDefines()
 
 ::System::String^ CppSharp::Parser::CppParserOptions::GetUndefines(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getUndefines(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getUndefines(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::CppParserOptions::AddUndefines(::System::String^ s)
@@ -180,9 +180,9 @@ void CppSharp::Parser::CppParserOptions::ClearUndefines()
 
 ::System::String^ CppSharp::Parser::CppParserOptions::GetSupportedStdTypes(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSupportedStdTypes(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSupportedStdTypes(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::CppParserOptions::AddSupportedStdTypes(::System::String^ s)
@@ -199,9 +199,9 @@ void CppSharp::Parser::CppParserOptions::ClearSupportedStdTypes()
 
 ::System::String^ CppSharp::Parser::CppParserOptions::GetSupportedFunctionTemplates(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSupportedFunctionTemplates(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSupportedFunctionTemplates(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::CppParserOptions::AddSupportedFunctionTemplates(::System::String^ s)
@@ -554,62 +554,62 @@ void CppSharp::Parser::CppParserOptions::SkipFunctionBodies::set(bool value)
 
 ::System::String^ CppSharp::Parser::CppParserOptions::ClangVersion::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getClangVersion();
-    return clix::marshalString<clix::E_UTF8>(__ret);
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getClangVersion();
+    return clix::marshalString<clix::E_UTF8>(___ret);
 }
 
 unsigned int CppSharp::Parser::CppParserOptions::ArgumentsCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getArgumentsCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getArgumentsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::CppParserOptions::CompilationOptionsCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getCompilationOptionsCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getCompilationOptionsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::CppParserOptions::SourceFilesCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSourceFilesCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSourceFilesCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::CppParserOptions::IncludeDirsCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getIncludeDirsCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getIncludeDirsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::CppParserOptions::SystemIncludeDirsCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSystemIncludeDirsCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSystemIncludeDirsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::CppParserOptions::DefinesCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getDefinesCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getDefinesCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::CppParserOptions::UndefinesCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getUndefinesCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getUndefinesCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::CppParserOptions::SupportedStdTypesCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSupportedStdTypesCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSupportedStdTypesCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::CppParserOptions::SupportedFunctionTemplatesCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSupportedFunctionTemplatesCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::CppParserOptions*)NativePtr)->getSupportedFunctionTemplatesCount();
+    return ___ret;
 }
 
 CppSharp::Parser::CppLinkerOptions::CppLinkerOptions(struct ::CppSharp::CppParser::CppLinkerOptions* native)
@@ -647,9 +647,9 @@ CppSharp::Parser::CppLinkerOptions::CppLinkerOptions()
 
 ::System::String^ CppSharp::Parser::CppLinkerOptions::GetArguments(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppLinkerOptions*)NativePtr)->getArguments(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((struct ::CppSharp::CppParser::CppLinkerOptions*)NativePtr)->getArguments(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::CppLinkerOptions::AddArguments(::System::String^ s)
@@ -666,9 +666,9 @@ void CppSharp::Parser::CppLinkerOptions::ClearArguments()
 
 ::System::String^ CppSharp::Parser::CppLinkerOptions::GetLibraryDirs(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppLinkerOptions*)NativePtr)->getLibraryDirs(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((struct ::CppSharp::CppParser::CppLinkerOptions*)NativePtr)->getLibraryDirs(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::CppLinkerOptions::AddLibraryDirs(::System::String^ s)
@@ -685,9 +685,9 @@ void CppSharp::Parser::CppLinkerOptions::ClearLibraryDirs()
 
 ::System::String^ CppSharp::Parser::CppLinkerOptions::GetLibraries(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppLinkerOptions*)NativePtr)->getLibraries(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(__ret));
+    auto ___ret = ((struct ::CppSharp::CppParser::CppLinkerOptions*)NativePtr)->getLibraries(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == 0 ? nullptr : clix::marshalString<clix::E_UTF8>(___ret));
 }
 
 void CppSharp::Parser::CppLinkerOptions::AddLibraries(::System::String^ s)
@@ -792,20 +792,20 @@ void CppSharp::Parser::CppLinkerOptions::Libraries::set(::System::Collections::G
 
 unsigned int CppSharp::Parser::CppLinkerOptions::ArgumentsCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppLinkerOptions*)NativePtr)->getArgumentsCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::CppLinkerOptions*)NativePtr)->getArgumentsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::CppLinkerOptions::LibraryDirsCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppLinkerOptions*)NativePtr)->getLibraryDirsCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::CppLinkerOptions*)NativePtr)->getLibraryDirsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::CppLinkerOptions::LibrariesCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::CppLinkerOptions*)NativePtr)->getLibrariesCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::CppLinkerOptions*)NativePtr)->getLibrariesCount();
+    return ___ret;
 }
 
 CppSharp::Parser::ParserDiagnostic::ParserDiagnostic(struct ::CppSharp::CppParser::ParserDiagnostic* native)
@@ -954,9 +954,9 @@ CppSharp::Parser::ParserResult::ParserResult(CppSharp::Parser::ParserResult^ _0)
 
 CppSharp::Parser::ParserDiagnostic^ CppSharp::Parser::ParserResult::GetDiagnostics(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::ParserResult*)NativePtr)->getDiagnostics(i);
-    auto ____ret = new struct ::CppSharp::CppParser::ParserDiagnostic(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::ParserDiagnostic((struct ::CppSharp::CppParser::ParserDiagnostic*)____ret, true);
+    auto ___ret = ((struct ::CppSharp::CppParser::ParserResult*)NativePtr)->getDiagnostics(i);
+    auto _____ret = new struct ::CppSharp::CppParser::ParserDiagnostic(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::ParserDiagnostic((struct ::CppSharp::CppParser::ParserDiagnostic*)_____ret, true);
 }
 
 void CppSharp::Parser::ParserResult::AddDiagnostics(CppSharp::Parser::ParserDiagnostic^ s)
@@ -974,9 +974,9 @@ void CppSharp::Parser::ParserResult::ClearDiagnostics()
 
 CppSharp::Parser::AST::NativeLibrary^ CppSharp::Parser::ParserResult::GetLibraries(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::ParserResult*)NativePtr)->getLibraries(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::NativeLibrary((class ::CppSharp::CppParser::AST::NativeLibrary*)__ret);
+    auto ___ret = ((struct ::CppSharp::CppParser::ParserResult*)NativePtr)->getLibraries(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::NativeLibrary((class ::CppSharp::CppParser::AST::NativeLibrary*)___ret);
 }
 
 void CppSharp::Parser::ParserResult::AddLibraries(CppSharp::Parser::AST::NativeLibrary^ s)
@@ -1073,14 +1073,14 @@ void CppSharp::Parser::ParserResult::TargetInfo::set(CppSharp::Parser::ParserTar
 
 unsigned int CppSharp::Parser::ParserResult::DiagnosticsCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::ParserResult*)NativePtr)->getDiagnosticsCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::ParserResult*)NativePtr)->getDiagnosticsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::ParserResult::LibrariesCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::ParserResult*)NativePtr)->getLibrariesCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::ParserResult*)NativePtr)->getLibrariesCount();
+    return ___ret;
 }
 
 CppSharp::Parser::ClangParser::ClangParser(class ::CppSharp::CppParser::ClangParser* native)
@@ -1113,17 +1113,17 @@ CppSharp::Parser::ClangParser::~ClangParser()
 CppSharp::Parser::ParserResult^ CppSharp::Parser::ClangParser::ParseHeader(CppSharp::Parser::CppParserOptions^ Opts)
 {
     auto __arg0 = (struct ::CppSharp::CppParser::CppParserOptions*)Opts->NativePtr;
-    auto __ret = ::CppSharp::CppParser::ClangParser::ParseHeader(__arg0);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::ParserResult((struct ::CppSharp::CppParser::ParserResult*)__ret);
+    auto ___ret = ::CppSharp::CppParser::ClangParser::ParseHeader(__arg0);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::ParserResult((struct ::CppSharp::CppParser::ParserResult*)___ret);
 }
 
 CppSharp::Parser::ParserResult^ CppSharp::Parser::ClangParser::ParseLibrary(CppSharp::Parser::CppLinkerOptions^ Opts)
 {
     auto __arg0 = (struct ::CppSharp::CppParser::CppLinkerOptions*)Opts->NativePtr;
-    auto __ret = ::CppSharp::CppParser::ClangParser::ParseLibrary(__arg0);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::ParserResult((struct ::CppSharp::CppParser::ParserResult*)__ret);
+    auto ___ret = ::CppSharp::CppParser::ClangParser::ParseLibrary(__arg0);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::ParserResult((struct ::CppSharp::CppParser::ParserResult*)___ret);
 }
 
 CppSharp::Parser::ParserResult^ CppSharp::Parser::ClangParser::Build(CppSharp::Parser::CppParserOptions^ Opts, CppSharp::Parser::CppLinkerOptions^ LinkerOptions, ::System::String^ File, bool Last)
@@ -1131,18 +1131,18 @@ CppSharp::Parser::ParserResult^ CppSharp::Parser::ClangParser::Build(CppSharp::P
     auto __arg0 = (struct ::CppSharp::CppParser::CppParserOptions*)Opts->NativePtr;
     auto __arg1 = (struct ::CppSharp::CppParser::CppLinkerOptions*)LinkerOptions->NativePtr;
     auto __arg2 = clix::marshalString<clix::E_UTF8>(File);
-    auto __ret = ::CppSharp::CppParser::ClangParser::Build(__arg0, __arg1, __arg2, Last);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::ParserResult((struct ::CppSharp::CppParser::ParserResult*)__ret);
+    auto ___ret = ::CppSharp::CppParser::ClangParser::Build(__arg0, __arg1, __arg2, Last);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::ParserResult((struct ::CppSharp::CppParser::ParserResult*)___ret);
 }
 
 CppSharp::Parser::ParserResult^ CppSharp::Parser::ClangParser::Compile(CppSharp::Parser::CppParserOptions^ Opts, ::System::String^ File)
 {
     auto __arg0 = (struct ::CppSharp::CppParser::CppParserOptions*)Opts->NativePtr;
     auto __arg1 = clix::marshalString<clix::E_UTF8>(File);
-    auto __ret = ::CppSharp::CppParser::ClangParser::Compile(__arg0, __arg1);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::ParserResult((struct ::CppSharp::CppParser::ParserResult*)__ret);
+    auto ___ret = ::CppSharp::CppParser::ClangParser::Compile(__arg0, __arg1);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::ParserResult((struct ::CppSharp::CppParser::ParserResult*)___ret);
 }
 
 CppSharp::Parser::ParserResult^ CppSharp::Parser::ClangParser::Link(CppSharp::Parser::CppParserOptions^ Opts, CppSharp::Parser::CppLinkerOptions^ LinkerOptions, ::System::String^ File, bool Last)
@@ -1150,9 +1150,9 @@ CppSharp::Parser::ParserResult^ CppSharp::Parser::ClangParser::Link(CppSharp::Pa
     auto __arg0 = (struct ::CppSharp::CppParser::CppParserOptions*)Opts->NativePtr;
     auto __arg1 = (struct ::CppSharp::CppParser::CppLinkerOptions*)LinkerOptions->NativePtr;
     auto __arg2 = clix::marshalString<clix::E_UTF8>(File);
-    auto __ret = ::CppSharp::CppParser::ClangParser::Link(__arg0, __arg1, __arg2, Last);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::ParserResult((struct ::CppSharp::CppParser::ParserResult*)__ret);
+    auto ___ret = ::CppSharp::CppParser::ClangParser::Link(__arg0, __arg1, __arg2, Last);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::ParserResult((struct ::CppSharp::CppParser::ParserResult*)___ret);
 }
 
 CppSharp::Parser::ClangParser::ClangParser()
diff --git a/src/CppParser/Bindings/CLI/Decl.cpp b/src/CppParser/Bindings/CLI/Decl.cpp
index 3de0e48de..36772ac7c 100644
--- a/src/CppParser/Bindings/CLI/Decl.cpp
+++ b/src/CppParser/Bindings/CLI/Decl.cpp
@@ -58,9 +58,9 @@ CppSharp::Parser::AST::Declaration::Declaration(CppSharp::Parser::AST::Declarati
 
 CppSharp::Parser::AST::PreprocessedEntity^ CppSharp::Parser::AST::Declaration::GetPreprocessedEntities(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Declaration*)NativePtr)->getPreprocessedEntities(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::PreprocessedEntity((class ::CppSharp::CppParser::AST::PreprocessedEntity*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Declaration*)NativePtr)->getPreprocessedEntities(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::PreprocessedEntity((class ::CppSharp::CppParser::AST::PreprocessedEntity*)___ret);
 }
 
 void CppSharp::Parser::AST::Declaration::AddPreprocessedEntities(CppSharp::Parser::AST::PreprocessedEntity^ s)
@@ -78,9 +78,9 @@ void CppSharp::Parser::AST::Declaration::ClearPreprocessedEntities()
 
 CppSharp::Parser::AST::Declaration^ CppSharp::Parser::AST::Declaration::GetRedeclarations(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Declaration*)NativePtr)->getRedeclarations(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Declaration((class ::CppSharp::CppParser::AST::Declaration*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Declaration*)NativePtr)->getRedeclarations(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Declaration((class ::CppSharp::CppParser::AST::Declaration*)___ret);
 }
 
 void CppSharp::Parser::AST::Declaration::AddRedeclarations(CppSharp::Parser::AST::Declaration^ s)
@@ -99,9 +99,9 @@ void CppSharp::Parser::AST::Declaration::ClearRedeclarations()
 CppSharp::Parser::AST::Declaration::operator CppSharp::Parser::AST::Declaration^(CppSharp::Parser::AST::DeclarationKind kind)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::DeclarationKind)kind;
-    auto __ret = (::CppSharp::CppParser::AST::Declaration) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::Declaration(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Declaration((class ::CppSharp::CppParser::AST::Declaration*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::Declaration) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::Declaration(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Declaration((class ::CppSharp::CppParser::AST::Declaration*)_____ret, true);
 }
 
 ::System::IntPtr CppSharp::Parser::AST::Declaration::__Instance::get()
@@ -364,14 +364,14 @@ void CppSharp::Parser::AST::Declaration::Comment::set(CppSharp::Parser::AST::Raw
 
 unsigned int CppSharp::Parser::AST::Declaration::PreprocessedEntitiesCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Declaration*)NativePtr)->getPreprocessedEntitiesCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Declaration*)NativePtr)->getPreprocessedEntitiesCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::Declaration::RedeclarationsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Declaration*)NativePtr)->getRedeclarationsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Declaration*)NativePtr)->getRedeclarationsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::DeclarationContext::DeclarationContext(class ::CppSharp::CppParser::AST::DeclarationContext* native)
@@ -414,9 +414,9 @@ CppSharp::Parser::AST::DeclarationContext::DeclarationContext(CppSharp::Parser::
 
 CppSharp::Parser::AST::Namespace^ CppSharp::Parser::AST::DeclarationContext::GetNamespaces(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getNamespaces(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Namespace((class ::CppSharp::CppParser::AST::Namespace*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getNamespaces(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Namespace((class ::CppSharp::CppParser::AST::Namespace*)___ret);
 }
 
 void CppSharp::Parser::AST::DeclarationContext::AddNamespaces(CppSharp::Parser::AST::Namespace^ s)
@@ -434,9 +434,9 @@ void CppSharp::Parser::AST::DeclarationContext::ClearNamespaces()
 
 CppSharp::Parser::AST::Enumeration^ CppSharp::Parser::AST::DeclarationContext::GetEnums(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getEnums(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Enumeration((class ::CppSharp::CppParser::AST::Enumeration*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getEnums(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Enumeration((class ::CppSharp::CppParser::AST::Enumeration*)___ret);
 }
 
 void CppSharp::Parser::AST::DeclarationContext::AddEnums(CppSharp::Parser::AST::Enumeration^ s)
@@ -454,9 +454,9 @@ void CppSharp::Parser::AST::DeclarationContext::ClearEnums()
 
 CppSharp::Parser::AST::Function^ CppSharp::Parser::AST::DeclarationContext::GetFunctions(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getFunctions(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Function((class ::CppSharp::CppParser::AST::Function*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getFunctions(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Function((class ::CppSharp::CppParser::AST::Function*)___ret);
 }
 
 void CppSharp::Parser::AST::DeclarationContext::AddFunctions(CppSharp::Parser::AST::Function^ s)
@@ -474,9 +474,9 @@ void CppSharp::Parser::AST::DeclarationContext::ClearFunctions()
 
 CppSharp::Parser::AST::Class^ CppSharp::Parser::AST::DeclarationContext::GetClasses(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getClasses(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Class((class ::CppSharp::CppParser::AST::Class*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getClasses(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Class((class ::CppSharp::CppParser::AST::Class*)___ret);
 }
 
 void CppSharp::Parser::AST::DeclarationContext::AddClasses(CppSharp::Parser::AST::Class^ s)
@@ -494,9 +494,9 @@ void CppSharp::Parser::AST::DeclarationContext::ClearClasses()
 
 CppSharp::Parser::AST::Template^ CppSharp::Parser::AST::DeclarationContext::GetTemplates(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getTemplates(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Template((class ::CppSharp::CppParser::AST::Template*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getTemplates(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Template((class ::CppSharp::CppParser::AST::Template*)___ret);
 }
 
 void CppSharp::Parser::AST::DeclarationContext::AddTemplates(CppSharp::Parser::AST::Template^ s)
@@ -514,9 +514,9 @@ void CppSharp::Parser::AST::DeclarationContext::ClearTemplates()
 
 CppSharp::Parser::AST::TypedefDecl^ CppSharp::Parser::AST::DeclarationContext::GetTypedefs(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getTypedefs(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TypedefDecl((class ::CppSharp::CppParser::AST::TypedefDecl*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getTypedefs(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TypedefDecl((class ::CppSharp::CppParser::AST::TypedefDecl*)___ret);
 }
 
 void CppSharp::Parser::AST::DeclarationContext::AddTypedefs(CppSharp::Parser::AST::TypedefDecl^ s)
@@ -534,9 +534,9 @@ void CppSharp::Parser::AST::DeclarationContext::ClearTypedefs()
 
 CppSharp::Parser::AST::TypeAlias^ CppSharp::Parser::AST::DeclarationContext::GetTypeAliases(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getTypeAliases(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TypeAlias((class ::CppSharp::CppParser::AST::TypeAlias*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getTypeAliases(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TypeAlias((class ::CppSharp::CppParser::AST::TypeAlias*)___ret);
 }
 
 void CppSharp::Parser::AST::DeclarationContext::AddTypeAliases(CppSharp::Parser::AST::TypeAlias^ s)
@@ -554,9 +554,9 @@ void CppSharp::Parser::AST::DeclarationContext::ClearTypeAliases()
 
 CppSharp::Parser::AST::Variable^ CppSharp::Parser::AST::DeclarationContext::GetVariables(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getVariables(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Variable((class ::CppSharp::CppParser::AST::Variable*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getVariables(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Variable((class ::CppSharp::CppParser::AST::Variable*)___ret);
 }
 
 void CppSharp::Parser::AST::DeclarationContext::AddVariables(CppSharp::Parser::AST::Variable^ s)
@@ -574,9 +574,9 @@ void CppSharp::Parser::AST::DeclarationContext::ClearVariables()
 
 CppSharp::Parser::AST::Friend^ CppSharp::Parser::AST::DeclarationContext::GetFriends(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getFriends(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Friend((class ::CppSharp::CppParser::AST::Friend*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getFriends(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Friend((class ::CppSharp::CppParser::AST::Friend*)___ret);
 }
 
 void CppSharp::Parser::AST::DeclarationContext::AddFriends(CppSharp::Parser::AST::Friend^ s)
@@ -605,9 +605,9 @@ CppSharp::Parser::AST::DeclarationContext::DeclarationContext(CppSharp::Parser::
 CppSharp::Parser::AST::DeclarationContext::operator CppSharp::Parser::AST::DeclarationContext^(CppSharp::Parser::AST::DeclarationKind kind)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::DeclarationKind)kind;
-    auto __ret = (::CppSharp::CppParser::AST::DeclarationContext) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::DeclarationContext(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::DeclarationContext((class ::CppSharp::CppParser::AST::DeclarationContext*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::DeclarationContext) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::DeclarationContext(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::DeclarationContext((class ::CppSharp::CppParser::AST::DeclarationContext*)_____ret, true);
 }
 
 ::System::Collections::Generic::List<CppSharp::Parser::AST::Namespace^>^ CppSharp::Parser::AST::DeclarationContext::Namespaces::get()
@@ -829,56 +829,56 @@ void CppSharp::Parser::AST::DeclarationContext::IsAnonymous::set(bool value)
 
 unsigned int CppSharp::Parser::AST::DeclarationContext::NamespacesCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getNamespacesCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getNamespacesCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::DeclarationContext::EnumsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getEnumsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getEnumsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::DeclarationContext::FunctionsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getFunctionsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getFunctionsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::DeclarationContext::ClassesCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getClassesCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getClassesCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::DeclarationContext::TemplatesCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getTemplatesCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getTemplatesCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::DeclarationContext::TypedefsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getTypedefsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getTypedefsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::DeclarationContext::TypeAliasesCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getTypeAliasesCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getTypeAliasesCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::DeclarationContext::VariablesCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getVariablesCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getVariablesCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::DeclarationContext::FriendsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getFriendsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclarationContext*)NativePtr)->getFriendsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::TypedefNameDecl::TypedefNameDecl(class ::CppSharp::CppParser::AST::TypedefNameDecl* native)
@@ -932,9 +932,9 @@ CppSharp::Parser::AST::TypedefNameDecl::TypedefNameDecl(CppSharp::Parser::AST::T
 CppSharp::Parser::AST::TypedefNameDecl::operator CppSharp::Parser::AST::TypedefNameDecl^(CppSharp::Parser::AST::DeclarationKind kind)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::DeclarationKind)kind;
-    auto __ret = (::CppSharp::CppParser::AST::TypedefNameDecl) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::TypedefNameDecl(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TypedefNameDecl((class ::CppSharp::CppParser::AST::TypedefNameDecl*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::TypedefNameDecl) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::TypedefNameDecl(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TypedefNameDecl((class ::CppSharp::CppParser::AST::TypedefNameDecl*)_____ret, true);
 }
 
 CppSharp::Parser::AST::QualifiedType^ CppSharp::Parser::AST::TypedefNameDecl::QualifiedType::get()
@@ -1367,9 +1367,9 @@ CppSharp::Parser::AST::CallExprObsolete::CallExprObsolete(::System::String^ str,
 
 CppSharp::Parser::AST::ExpressionObsolete^ CppSharp::Parser::AST::CallExprObsolete::GetArguments(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CallExprObsolete*)NativePtr)->getArguments(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::ExpressionObsolete((class ::CppSharp::CppParser::AST::ExpressionObsolete*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CallExprObsolete*)NativePtr)->getArguments(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::ExpressionObsolete((class ::CppSharp::CppParser::AST::ExpressionObsolete*)___ret);
 }
 
 void CppSharp::Parser::AST::CallExprObsolete::AddArguments(CppSharp::Parser::AST::ExpressionObsolete^ s)
@@ -1420,8 +1420,8 @@ void CppSharp::Parser::AST::CallExprObsolete::Arguments::set(::System::Collectio
 
 unsigned int CppSharp::Parser::AST::CallExprObsolete::ArgumentsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CallExprObsolete*)NativePtr)->getArgumentsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CallExprObsolete*)NativePtr)->getArgumentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::CXXConstructExprObsolete::CXXConstructExprObsolete(class ::CppSharp::CppParser::AST::CXXConstructExprObsolete* native)
@@ -1465,9 +1465,9 @@ CppSharp::Parser::AST::CXXConstructExprObsolete::CXXConstructExprObsolete(::Syst
 
 CppSharp::Parser::AST::ExpressionObsolete^ CppSharp::Parser::AST::CXXConstructExprObsolete::GetArguments(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CXXConstructExprObsolete*)NativePtr)->getArguments(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::ExpressionObsolete((class ::CppSharp::CppParser::AST::ExpressionObsolete*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CXXConstructExprObsolete*)NativePtr)->getArguments(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::ExpressionObsolete((class ::CppSharp::CppParser::AST::ExpressionObsolete*)___ret);
 }
 
 void CppSharp::Parser::AST::CXXConstructExprObsolete::AddArguments(CppSharp::Parser::AST::ExpressionObsolete^ s)
@@ -1518,8 +1518,8 @@ void CppSharp::Parser::AST::CXXConstructExprObsolete::Arguments::set(::System::C
 
 unsigned int CppSharp::Parser::AST::CXXConstructExprObsolete::ArgumentsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CXXConstructExprObsolete*)NativePtr)->getArgumentsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CXXConstructExprObsolete*)NativePtr)->getArgumentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::Parameter::Parameter(class ::CppSharp::CppParser::AST::Parameter* native)
@@ -1670,9 +1670,9 @@ CppSharp::Parser::AST::Function::Function()
 
 CppSharp::Parser::AST::Parameter^ CppSharp::Parser::AST::Function::GetParameters(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Function*)NativePtr)->getParameters(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Parameter((class ::CppSharp::CppParser::AST::Parameter*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Function*)NativePtr)->getParameters(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Parameter((class ::CppSharp::CppParser::AST::Parameter*)___ret);
 }
 
 void CppSharp::Parser::AST::Function::AddParameters(CppSharp::Parser::AST::Parameter^ s)
@@ -1917,8 +1917,8 @@ void CppSharp::Parser::AST::Function::QualifiedType::set(CppSharp::Parser::AST::
 
 unsigned int CppSharp::Parser::AST::Function::ParametersCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Function*)NativePtr)->getParametersCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Function*)NativePtr)->getParametersCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::Method::Method(class ::CppSharp::CppParser::AST::Method* native)
@@ -1960,9 +1960,9 @@ CppSharp::Parser::AST::Method::Method()
 
 CppSharp::Parser::AST::Method^ CppSharp::Parser::AST::Method::GetOverriddenMethods(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Method*)NativePtr)->getOverriddenMethods(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Method((class ::CppSharp::CppParser::AST::Method*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Method*)NativePtr)->getOverriddenMethods(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Method((class ::CppSharp::CppParser::AST::Method*)___ret);
 }
 
 void CppSharp::Parser::AST::Method::AddOverriddenMethods(CppSharp::Parser::AST::Method^ s)
@@ -2115,8 +2115,8 @@ void CppSharp::Parser::AST::Method::OverriddenMethods::set(::System::Collections
 
 unsigned int CppSharp::Parser::AST::Method::OverriddenMethodsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Method*)NativePtr)->getOverriddenMethodsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Method*)NativePtr)->getOverriddenMethodsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::Enumeration::Item::Item(class ::CppSharp::CppParser::AST::Enumeration::Item* native)
@@ -2225,9 +2225,9 @@ CppSharp::Parser::AST::Enumeration::Enumeration()
 
 CppSharp::Parser::AST::Enumeration::Item^ CppSharp::Parser::AST::Enumeration::GetItems(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Enumeration*)NativePtr)->getItems(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Enumeration::Item((class ::CppSharp::CppParser::AST::Enumeration::Item*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Enumeration*)NativePtr)->getItems(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Enumeration::Item((class ::CppSharp::CppParser::AST::Enumeration::Item*)___ret);
 }
 
 void CppSharp::Parser::AST::Enumeration::AddItems(CppSharp::Parser::AST::Enumeration::Item^ s)
@@ -2246,9 +2246,9 @@ void CppSharp::Parser::AST::Enumeration::ClearItems()
 CppSharp::Parser::AST::Enumeration::Item^ CppSharp::Parser::AST::Enumeration::FindItemByName(::System::String^ Name)
 {
     auto __arg0 = clix::marshalString<clix::E_UTF8>(Name);
-    auto __ret = ((class ::CppSharp::CppParser::AST::Enumeration*)NativePtr)->FindItemByName(__arg0);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Enumeration::Item((class ::CppSharp::CppParser::AST::Enumeration::Item*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Enumeration*)NativePtr)->FindItemByName(__arg0);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Enumeration::Item((class ::CppSharp::CppParser::AST::Enumeration::Item*)___ret);
 }
 
 CppSharp::Parser::AST::Enumeration::Enumeration(CppSharp::Parser::AST::Enumeration^ _0)
@@ -2316,8 +2316,8 @@ void CppSharp::Parser::AST::Enumeration::Items::set(::System::Collections::Gener
 
 unsigned int CppSharp::Parser::AST::Enumeration::ItemsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Enumeration*)NativePtr)->getItemsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Enumeration*)NativePtr)->getItemsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::Variable::Variable(class ::CppSharp::CppParser::AST::Variable* native)
@@ -2763,9 +2763,9 @@ CppSharp::Parser::AST::VTableLayout::VTableLayout(CppSharp::Parser::AST::VTableL
 
 CppSharp::Parser::AST::VTableComponent^ CppSharp::Parser::AST::VTableLayout::GetComponents(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::AST::VTableLayout*)NativePtr)->getComponents(i);
-    auto ____ret = new struct ::CppSharp::CppParser::AST::VTableComponent(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::VTableComponent((struct ::CppSharp::CppParser::AST::VTableComponent*)____ret, true);
+    auto ___ret = ((struct ::CppSharp::CppParser::AST::VTableLayout*)NativePtr)->getComponents(i);
+    auto _____ret = new struct ::CppSharp::CppParser::AST::VTableComponent(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::VTableComponent((struct ::CppSharp::CppParser::AST::VTableComponent*)_____ret, true);
 }
 
 void CppSharp::Parser::AST::VTableLayout::AddComponents(CppSharp::Parser::AST::VTableComponent^ s)
@@ -2819,8 +2819,8 @@ void CppSharp::Parser::AST::VTableLayout::Components::set(::System::Collections:
 
 unsigned int CppSharp::Parser::AST::VTableLayout::ComponentsCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::AST::VTableLayout*)NativePtr)->getComponentsCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::AST::VTableLayout*)NativePtr)->getComponentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::VFTableInfo::VFTableInfo(struct ::CppSharp::CppParser::AST::VFTableInfo* native)
@@ -3118,9 +3118,9 @@ CppSharp::Parser::AST::ClassLayout::ClassLayout()
 
 CppSharp::Parser::AST::VFTableInfo^ CppSharp::Parser::AST::ClassLayout::GetVFTables(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::AST::ClassLayout*)NativePtr)->getVFTables(i);
-    auto ____ret = new struct ::CppSharp::CppParser::AST::VFTableInfo(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::VFTableInfo((struct ::CppSharp::CppParser::AST::VFTableInfo*)____ret, true);
+    auto ___ret = ((struct ::CppSharp::CppParser::AST::ClassLayout*)NativePtr)->getVFTables(i);
+    auto _____ret = new struct ::CppSharp::CppParser::AST::VFTableInfo(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::VFTableInfo((struct ::CppSharp::CppParser::AST::VFTableInfo*)_____ret, true);
 }
 
 void CppSharp::Parser::AST::ClassLayout::AddVFTables(CppSharp::Parser::AST::VFTableInfo^ s)
@@ -3138,9 +3138,9 @@ void CppSharp::Parser::AST::ClassLayout::ClearVFTables()
 
 CppSharp::Parser::AST::LayoutField^ CppSharp::Parser::AST::ClassLayout::GetFields(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::AST::ClassLayout*)NativePtr)->getFields(i);
-    auto ____ret = new class ::CppSharp::CppParser::AST::LayoutField(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::LayoutField((class ::CppSharp::CppParser::AST::LayoutField*)____ret, true);
+    auto ___ret = ((struct ::CppSharp::CppParser::AST::ClassLayout*)NativePtr)->getFields(i);
+    auto _____ret = new class ::CppSharp::CppParser::AST::LayoutField(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::LayoutField((class ::CppSharp::CppParser::AST::LayoutField*)_____ret, true);
 }
 
 void CppSharp::Parser::AST::ClassLayout::AddFields(CppSharp::Parser::AST::LayoutField^ s)
@@ -3158,9 +3158,9 @@ void CppSharp::Parser::AST::ClassLayout::ClearFields()
 
 CppSharp::Parser::AST::LayoutBase^ CppSharp::Parser::AST::ClassLayout::GetBases(unsigned int i)
 {
-    auto __ret = ((struct ::CppSharp::CppParser::AST::ClassLayout*)NativePtr)->getBases(i);
-    auto ____ret = new class ::CppSharp::CppParser::AST::LayoutBase(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::LayoutBase((class ::CppSharp::CppParser::AST::LayoutBase*)____ret, true);
+    auto ___ret = ((struct ::CppSharp::CppParser::AST::ClassLayout*)NativePtr)->getBases(i);
+    auto _____ret = new class ::CppSharp::CppParser::AST::LayoutBase(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::LayoutBase((class ::CppSharp::CppParser::AST::LayoutBase*)_____ret, true);
 }
 
 void CppSharp::Parser::AST::ClassLayout::AddBases(CppSharp::Parser::AST::LayoutBase^ s)
@@ -3357,20 +3357,20 @@ void CppSharp::Parser::AST::ClassLayout::Bases::set(::System::Collections::Gener
 
 unsigned int CppSharp::Parser::AST::ClassLayout::VFTablesCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::AST::ClassLayout*)NativePtr)->getVFTablesCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::AST::ClassLayout*)NativePtr)->getVFTablesCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::ClassLayout::FieldsCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::AST::ClassLayout*)NativePtr)->getFieldsCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::AST::ClassLayout*)NativePtr)->getFieldsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::ClassLayout::BasesCount::get()
 {
-    auto __ret = ((struct ::CppSharp::CppParser::AST::ClassLayout*)NativePtr)->getBasesCount();
-    return __ret;
+    auto ___ret = ((struct ::CppSharp::CppParser::AST::ClassLayout*)NativePtr)->getBasesCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::Class::Class(class ::CppSharp::CppParser::AST::Class* native)
@@ -3412,9 +3412,9 @@ CppSharp::Parser::AST::Class::Class()
 
 CppSharp::Parser::AST::BaseClassSpecifier^ CppSharp::Parser::AST::Class::GetBases(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getBases(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::BaseClassSpecifier((struct ::CppSharp::CppParser::AST::BaseClassSpecifier*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getBases(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::BaseClassSpecifier((struct ::CppSharp::CppParser::AST::BaseClassSpecifier*)___ret);
 }
 
 void CppSharp::Parser::AST::Class::AddBases(CppSharp::Parser::AST::BaseClassSpecifier^ s)
@@ -3432,9 +3432,9 @@ void CppSharp::Parser::AST::Class::ClearBases()
 
 CppSharp::Parser::AST::Field^ CppSharp::Parser::AST::Class::GetFields(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getFields(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Field((class ::CppSharp::CppParser::AST::Field*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getFields(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Field((class ::CppSharp::CppParser::AST::Field*)___ret);
 }
 
 void CppSharp::Parser::AST::Class::AddFields(CppSharp::Parser::AST::Field^ s)
@@ -3452,9 +3452,9 @@ void CppSharp::Parser::AST::Class::ClearFields()
 
 CppSharp::Parser::AST::Method^ CppSharp::Parser::AST::Class::GetMethods(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getMethods(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Method((class ::CppSharp::CppParser::AST::Method*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getMethods(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Method((class ::CppSharp::CppParser::AST::Method*)___ret);
 }
 
 void CppSharp::Parser::AST::Class::AddMethods(CppSharp::Parser::AST::Method^ s)
@@ -3472,9 +3472,9 @@ void CppSharp::Parser::AST::Class::ClearMethods()
 
 CppSharp::Parser::AST::AccessSpecifierDecl^ CppSharp::Parser::AST::Class::GetSpecifiers(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getSpecifiers(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::AccessSpecifierDecl((class ::CppSharp::CppParser::AST::AccessSpecifierDecl*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getSpecifiers(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::AccessSpecifierDecl((class ::CppSharp::CppParser::AST::AccessSpecifierDecl*)___ret);
 }
 
 void CppSharp::Parser::AST::Class::AddSpecifiers(CppSharp::Parser::AST::AccessSpecifierDecl^ s)
@@ -3714,26 +3714,26 @@ void CppSharp::Parser::AST::Class::Layout::set(CppSharp::Parser::AST::ClassLayou
 
 unsigned int CppSharp::Parser::AST::Class::BasesCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getBasesCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getBasesCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::Class::FieldsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getFieldsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getFieldsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::Class::MethodsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getMethodsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getMethodsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::Class::SpecifiersCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getSpecifiersCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Class*)NativePtr)->getSpecifiersCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::Template::Template(class ::CppSharp::CppParser::AST::Template* native)
@@ -3783,9 +3783,9 @@ CppSharp::Parser::AST::Template::Template()
 
 CppSharp::Parser::AST::Declaration^ CppSharp::Parser::AST::Template::GetParameters(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Template*)NativePtr)->getParameters(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Declaration((class ::CppSharp::CppParser::AST::Declaration*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Template*)NativePtr)->getParameters(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Declaration((class ::CppSharp::CppParser::AST::Declaration*)___ret);
 }
 
 void CppSharp::Parser::AST::Template::AddParameters(CppSharp::Parser::AST::Declaration^ s)
@@ -3814,9 +3814,9 @@ CppSharp::Parser::AST::Template::Template(CppSharp::Parser::AST::Template^ _0)
 CppSharp::Parser::AST::Template::operator CppSharp::Parser::AST::Template^(CppSharp::Parser::AST::DeclarationKind kind)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::DeclarationKind)kind;
-    auto __ret = (::CppSharp::CppParser::AST::Template) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::Template(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Template((class ::CppSharp::CppParser::AST::Template*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::Template) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::Template(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Template((class ::CppSharp::CppParser::AST::Template*)_____ret, true);
 }
 
 CppSharp::Parser::AST::Declaration^ CppSharp::Parser::AST::Template::TemplatedDecl::get()
@@ -3854,8 +3854,8 @@ void CppSharp::Parser::AST::Template::Parameters::set(::System::Collections::Gen
 
 unsigned int CppSharp::Parser::AST::Template::ParametersCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::Template*)NativePtr)->getParametersCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::Template*)NativePtr)->getParametersCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::TypeAliasTemplate::TypeAliasTemplate(class ::CppSharp::CppParser::AST::TypeAliasTemplate* native)
@@ -3956,9 +3956,9 @@ CppSharp::Parser::AST::TemplateParameter::TemplateParameter(CppSharp::Parser::AS
 CppSharp::Parser::AST::TemplateParameter::operator CppSharp::Parser::AST::TemplateParameter^(CppSharp::Parser::AST::DeclarationKind kind)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::DeclarationKind)kind;
-    auto __ret = (::CppSharp::CppParser::AST::TemplateParameter) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::TemplateParameter(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TemplateParameter((class ::CppSharp::CppParser::AST::TemplateParameter*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::TemplateParameter) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::TemplateParameter(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TemplateParameter((class ::CppSharp::CppParser::AST::TemplateParameter*)_____ret, true);
 }
 
 unsigned int CppSharp::Parser::AST::TemplateParameter::Depth::get()
@@ -4275,9 +4275,9 @@ CppSharp::Parser::AST::ClassTemplate::ClassTemplate()
 
 CppSharp::Parser::AST::ClassTemplateSpecialization^ CppSharp::Parser::AST::ClassTemplate::GetSpecializations(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::ClassTemplate*)NativePtr)->getSpecializations(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::ClassTemplateSpecialization((class ::CppSharp::CppParser::AST::ClassTemplateSpecialization*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::ClassTemplate*)NativePtr)->getSpecializations(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::ClassTemplateSpecialization((class ::CppSharp::CppParser::AST::ClassTemplateSpecialization*)___ret);
 }
 
 void CppSharp::Parser::AST::ClassTemplate::AddSpecializations(CppSharp::Parser::AST::ClassTemplateSpecialization^ s)
@@ -4296,17 +4296,17 @@ void CppSharp::Parser::AST::ClassTemplate::ClearSpecializations()
 CppSharp::Parser::AST::ClassTemplateSpecialization^ CppSharp::Parser::AST::ClassTemplate::FindSpecialization(::System::String^ usr)
 {
     auto __arg0 = clix::marshalString<clix::E_UTF8>(usr);
-    auto __ret = ((class ::CppSharp::CppParser::AST::ClassTemplate*)NativePtr)->FindSpecialization(__arg0);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::ClassTemplateSpecialization((class ::CppSharp::CppParser::AST::ClassTemplateSpecialization*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::ClassTemplate*)NativePtr)->FindSpecialization(__arg0);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::ClassTemplateSpecialization((class ::CppSharp::CppParser::AST::ClassTemplateSpecialization*)___ret);
 }
 
 CppSharp::Parser::AST::ClassTemplatePartialSpecialization^ CppSharp::Parser::AST::ClassTemplate::FindPartialSpecialization(::System::String^ usr)
 {
     auto __arg0 = clix::marshalString<clix::E_UTF8>(usr);
-    auto __ret = ((class ::CppSharp::CppParser::AST::ClassTemplate*)NativePtr)->FindPartialSpecialization(__arg0);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::ClassTemplatePartialSpecialization((class ::CppSharp::CppParser::AST::ClassTemplatePartialSpecialization*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::ClassTemplate*)NativePtr)->FindPartialSpecialization(__arg0);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::ClassTemplatePartialSpecialization((class ::CppSharp::CppParser::AST::ClassTemplatePartialSpecialization*)___ret);
 }
 
 CppSharp::Parser::AST::ClassTemplate::ClassTemplate(CppSharp::Parser::AST::ClassTemplate^ _0)
@@ -4344,8 +4344,8 @@ void CppSharp::Parser::AST::ClassTemplate::Specializations::set(::System::Collec
 
 unsigned int CppSharp::Parser::AST::ClassTemplate::SpecializationsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::ClassTemplate*)NativePtr)->getSpecializationsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::ClassTemplate*)NativePtr)->getSpecializationsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::ClassTemplateSpecialization::ClassTemplateSpecialization(class ::CppSharp::CppParser::AST::ClassTemplateSpecialization* native)
@@ -4387,9 +4387,9 @@ CppSharp::Parser::AST::ClassTemplateSpecialization::ClassTemplateSpecialization(
 
 CppSharp::Parser::AST::TemplateArgument^ CppSharp::Parser::AST::ClassTemplateSpecialization::GetArguments(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::ClassTemplateSpecialization*)NativePtr)->getArguments(i);
-    auto ____ret = new struct ::CppSharp::CppParser::AST::TemplateArgument(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TemplateArgument((struct ::CppSharp::CppParser::AST::TemplateArgument*)____ret, true);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::ClassTemplateSpecialization*)NativePtr)->getArguments(i);
+    auto _____ret = new struct ::CppSharp::CppParser::AST::TemplateArgument(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TemplateArgument((struct ::CppSharp::CppParser::AST::TemplateArgument*)_____ret, true);
 }
 
 void CppSharp::Parser::AST::ClassTemplateSpecialization::AddArguments(CppSharp::Parser::AST::TemplateArgument^ s)
@@ -4463,8 +4463,8 @@ void CppSharp::Parser::AST::ClassTemplateSpecialization::SpecializationKind::set
 
 unsigned int CppSharp::Parser::AST::ClassTemplateSpecialization::ArgumentsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::ClassTemplateSpecialization*)NativePtr)->getArgumentsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::ClassTemplateSpecialization*)NativePtr)->getArgumentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::ClassTemplatePartialSpecialization::ClassTemplatePartialSpecialization(class ::CppSharp::CppParser::AST::ClassTemplatePartialSpecialization* native)
@@ -4553,9 +4553,9 @@ CppSharp::Parser::AST::FunctionTemplate::FunctionTemplate()
 
 CppSharp::Parser::AST::FunctionTemplateSpecialization^ CppSharp::Parser::AST::FunctionTemplate::GetSpecializations(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::FunctionTemplate*)NativePtr)->getSpecializations(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::FunctionTemplateSpecialization((class ::CppSharp::CppParser::AST::FunctionTemplateSpecialization*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::FunctionTemplate*)NativePtr)->getSpecializations(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::FunctionTemplateSpecialization((class ::CppSharp::CppParser::AST::FunctionTemplateSpecialization*)___ret);
 }
 
 void CppSharp::Parser::AST::FunctionTemplate::AddSpecializations(CppSharp::Parser::AST::FunctionTemplateSpecialization^ s)
@@ -4574,9 +4574,9 @@ void CppSharp::Parser::AST::FunctionTemplate::ClearSpecializations()
 CppSharp::Parser::AST::FunctionTemplateSpecialization^ CppSharp::Parser::AST::FunctionTemplate::FindSpecialization(::System::String^ usr)
 {
     auto __arg0 = clix::marshalString<clix::E_UTF8>(usr);
-    auto __ret = ((class ::CppSharp::CppParser::AST::FunctionTemplate*)NativePtr)->FindSpecialization(__arg0);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::FunctionTemplateSpecialization((class ::CppSharp::CppParser::AST::FunctionTemplateSpecialization*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::FunctionTemplate*)NativePtr)->FindSpecialization(__arg0);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::FunctionTemplateSpecialization((class ::CppSharp::CppParser::AST::FunctionTemplateSpecialization*)___ret);
 }
 
 CppSharp::Parser::AST::FunctionTemplate::FunctionTemplate(CppSharp::Parser::AST::FunctionTemplate^ _0)
@@ -4614,8 +4614,8 @@ void CppSharp::Parser::AST::FunctionTemplate::Specializations::set(::System::Col
 
 unsigned int CppSharp::Parser::AST::FunctionTemplate::SpecializationsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::FunctionTemplate*)NativePtr)->getSpecializationsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::FunctionTemplate*)NativePtr)->getSpecializationsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::FunctionTemplateSpecialization::FunctionTemplateSpecialization(class ::CppSharp::CppParser::AST::FunctionTemplateSpecialization* native)
@@ -4653,9 +4653,9 @@ CppSharp::Parser::AST::FunctionTemplateSpecialization::FunctionTemplateSpecializ
 
 CppSharp::Parser::AST::TemplateArgument^ CppSharp::Parser::AST::FunctionTemplateSpecialization::GetArguments(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::FunctionTemplateSpecialization*)NativePtr)->getArguments(i);
-    auto ____ret = new struct ::CppSharp::CppParser::AST::TemplateArgument(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TemplateArgument((struct ::CppSharp::CppParser::AST::TemplateArgument*)____ret, true);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::FunctionTemplateSpecialization*)NativePtr)->getArguments(i);
+    auto _____ret = new struct ::CppSharp::CppParser::AST::TemplateArgument(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TemplateArgument((struct ::CppSharp::CppParser::AST::TemplateArgument*)_____ret, true);
 }
 
 void CppSharp::Parser::AST::FunctionTemplateSpecialization::AddArguments(CppSharp::Parser::AST::TemplateArgument^ s)
@@ -4748,8 +4748,8 @@ void CppSharp::Parser::AST::FunctionTemplateSpecialization::SpecializationKind::
 
 unsigned int CppSharp::Parser::AST::FunctionTemplateSpecialization::ArgumentsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::FunctionTemplateSpecialization*)NativePtr)->getArgumentsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::FunctionTemplateSpecialization*)NativePtr)->getArgumentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::VarTemplate::VarTemplate(class ::CppSharp::CppParser::AST::VarTemplate* native)
@@ -4791,9 +4791,9 @@ CppSharp::Parser::AST::VarTemplate::VarTemplate()
 
 CppSharp::Parser::AST::VarTemplateSpecialization^ CppSharp::Parser::AST::VarTemplate::GetSpecializations(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::VarTemplate*)NativePtr)->getSpecializations(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::VarTemplateSpecialization((class ::CppSharp::CppParser::AST::VarTemplateSpecialization*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::VarTemplate*)NativePtr)->getSpecializations(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::VarTemplateSpecialization((class ::CppSharp::CppParser::AST::VarTemplateSpecialization*)___ret);
 }
 
 void CppSharp::Parser::AST::VarTemplate::AddSpecializations(CppSharp::Parser::AST::VarTemplateSpecialization^ s)
@@ -4812,17 +4812,17 @@ void CppSharp::Parser::AST::VarTemplate::ClearSpecializations()
 CppSharp::Parser::AST::VarTemplateSpecialization^ CppSharp::Parser::AST::VarTemplate::FindSpecialization(::System::String^ usr)
 {
     auto __arg0 = clix::marshalString<clix::E_UTF8>(usr);
-    auto __ret = ((class ::CppSharp::CppParser::AST::VarTemplate*)NativePtr)->FindSpecialization(__arg0);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::VarTemplateSpecialization((class ::CppSharp::CppParser::AST::VarTemplateSpecialization*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::VarTemplate*)NativePtr)->FindSpecialization(__arg0);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::VarTemplateSpecialization((class ::CppSharp::CppParser::AST::VarTemplateSpecialization*)___ret);
 }
 
 CppSharp::Parser::AST::VarTemplatePartialSpecialization^ CppSharp::Parser::AST::VarTemplate::FindPartialSpecialization(::System::String^ usr)
 {
     auto __arg0 = clix::marshalString<clix::E_UTF8>(usr);
-    auto __ret = ((class ::CppSharp::CppParser::AST::VarTemplate*)NativePtr)->FindPartialSpecialization(__arg0);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::VarTemplatePartialSpecialization((class ::CppSharp::CppParser::AST::VarTemplatePartialSpecialization*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::VarTemplate*)NativePtr)->FindPartialSpecialization(__arg0);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::VarTemplatePartialSpecialization((class ::CppSharp::CppParser::AST::VarTemplatePartialSpecialization*)___ret);
 }
 
 CppSharp::Parser::AST::VarTemplate::VarTemplate(CppSharp::Parser::AST::VarTemplate^ _0)
@@ -4860,8 +4860,8 @@ void CppSharp::Parser::AST::VarTemplate::Specializations::set(::System::Collecti
 
 unsigned int CppSharp::Parser::AST::VarTemplate::SpecializationsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::VarTemplate*)NativePtr)->getSpecializationsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::VarTemplate*)NativePtr)->getSpecializationsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::VarTemplateSpecialization::VarTemplateSpecialization(class ::CppSharp::CppParser::AST::VarTemplateSpecialization* native)
@@ -4903,9 +4903,9 @@ CppSharp::Parser::AST::VarTemplateSpecialization::VarTemplateSpecialization()
 
 CppSharp::Parser::AST::TemplateArgument^ CppSharp::Parser::AST::VarTemplateSpecialization::GetArguments(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::VarTemplateSpecialization*)NativePtr)->getArguments(i);
-    auto ____ret = new struct ::CppSharp::CppParser::AST::TemplateArgument(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TemplateArgument((struct ::CppSharp::CppParser::AST::TemplateArgument*)____ret, true);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::VarTemplateSpecialization*)NativePtr)->getArguments(i);
+    auto _____ret = new struct ::CppSharp::CppParser::AST::TemplateArgument(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TemplateArgument((struct ::CppSharp::CppParser::AST::TemplateArgument*)_____ret, true);
 }
 
 void CppSharp::Parser::AST::VarTemplateSpecialization::AddArguments(CppSharp::Parser::AST::TemplateArgument^ s)
@@ -4979,8 +4979,8 @@ void CppSharp::Parser::AST::VarTemplateSpecialization::SpecializationKind::set(C
 
 unsigned int CppSharp::Parser::AST::VarTemplateSpecialization::ArgumentsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::VarTemplateSpecialization*)NativePtr)->getArgumentsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::VarTemplateSpecialization*)NativePtr)->getArgumentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::VarTemplatePartialSpecialization::VarTemplatePartialSpecialization(class ::CppSharp::CppParser::AST::VarTemplatePartialSpecialization* native)
@@ -5419,9 +5419,9 @@ CppSharp::Parser::AST::TranslationUnit::TranslationUnit()
 
 CppSharp::Parser::AST::MacroDefinition^ CppSharp::Parser::AST::TranslationUnit::GetMacros(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::TranslationUnit*)NativePtr)->getMacros(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::MacroDefinition((class ::CppSharp::CppParser::AST::MacroDefinition*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::TranslationUnit*)NativePtr)->getMacros(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::MacroDefinition((class ::CppSharp::CppParser::AST::MacroDefinition*)___ret);
 }
 
 void CppSharp::Parser::AST::TranslationUnit::AddMacros(CppSharp::Parser::AST::MacroDefinition^ s)
@@ -5492,8 +5492,8 @@ void CppSharp::Parser::AST::TranslationUnit::Macros::set(::System::Collections::
 
 unsigned int CppSharp::Parser::AST::TranslationUnit::MacrosCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::TranslationUnit*)NativePtr)->getMacrosCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::TranslationUnit*)NativePtr)->getMacrosCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::ASTContext::ASTContext(class ::CppSharp::CppParser::AST::ASTContext* native)
@@ -5532,16 +5532,16 @@ CppSharp::Parser::AST::ASTContext::ASTContext()
 CppSharp::Parser::AST::TranslationUnit^ CppSharp::Parser::AST::ASTContext::FindOrCreateModule(::System::String^ File)
 {
     auto __arg0 = clix::marshalString<clix::E_UTF8>(File);
-    auto __ret = ((class ::CppSharp::CppParser::AST::ASTContext*)NativePtr)->FindOrCreateModule(__arg0);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TranslationUnit((class ::CppSharp::CppParser::AST::TranslationUnit*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::ASTContext*)NativePtr)->FindOrCreateModule(__arg0);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TranslationUnit((class ::CppSharp::CppParser::AST::TranslationUnit*)___ret);
 }
 
 CppSharp::Parser::AST::TranslationUnit^ CppSharp::Parser::AST::ASTContext::GetTranslationUnits(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::ASTContext*)NativePtr)->getTranslationUnits(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TranslationUnit((class ::CppSharp::CppParser::AST::TranslationUnit*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::ASTContext*)NativePtr)->getTranslationUnits(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TranslationUnit((class ::CppSharp::CppParser::AST::TranslationUnit*)___ret);
 }
 
 void CppSharp::Parser::AST::ASTContext::AddTranslationUnits(CppSharp::Parser::AST::TranslationUnit^ s)
@@ -5601,7 +5601,7 @@ void CppSharp::Parser::AST::ASTContext::TranslationUnits::set(::System::Collecti
 
 unsigned int CppSharp::Parser::AST::ASTContext::TranslationUnitsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::ASTContext*)NativePtr)->getTranslationUnitsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::ASTContext*)NativePtr)->getTranslationUnitsCount();
+    return ___ret;
 }
 
diff --git a/src/CppParser/Bindings/CLI/Expr.cpp b/src/CppParser/Bindings/CLI/Expr.cpp
index 6999deb20..c0ad0d390 100644
--- a/src/CppParser/Bindings/CLI/Expr.cpp
+++ b/src/CppParser/Bindings/CLI/Expr.cpp
@@ -197,9 +197,9 @@ CppSharp::Parser::AST::Expr::Expr(CppSharp::Parser::AST::Expr^ _0)
 CppSharp::Parser::AST::Expr::operator CppSharp::Parser::AST::Expr^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::Expr) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::Expr(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::Expr) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::Expr(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)_____ret, true);
 }
 
 CppSharp::Parser::AST::QualifiedType^ CppSharp::Parser::AST::Expr::Type::get()
@@ -398,9 +398,9 @@ CppSharp::Parser::AST::FullExpr::FullExpr(CppSharp::Parser::AST::FullExpr^ _0)
 CppSharp::Parser::AST::FullExpr::operator CppSharp::Parser::AST::FullExpr^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::FullExpr) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::FullExpr(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::FullExpr((class ::CppSharp::CppParser::AST::FullExpr*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::FullExpr) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::FullExpr(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::FullExpr((class ::CppSharp::CppParser::AST::FullExpr*)_____ret, true);
 }
 
 CppSharp::Parser::AST::Expr^ CppSharp::Parser::AST::FullExpr::SubExpr::get()
@@ -1851,9 +1851,9 @@ CppSharp::Parser::AST::CallExpr::CallExpr(CppSharp::Parser::AST::StmtClass klass
 
 CppSharp::Parser::AST::Expr^ CppSharp::Parser::AST::CallExpr::Getarguments(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CallExpr*)NativePtr)->getarguments(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CallExpr*)NativePtr)->getarguments(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)___ret);
 }
 
 void CppSharp::Parser::AST::CallExpr::Addarguments(CppSharp::Parser::AST::Expr^ s)
@@ -1882,9 +1882,9 @@ CppSharp::Parser::AST::CallExpr::CallExpr(CppSharp::Parser::AST::CallExpr^ _0)
 CppSharp::Parser::AST::CallExpr::operator CppSharp::Parser::AST::CallExpr^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::CallExpr) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::CallExpr(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::CallExpr((class ::CppSharp::CppParser::AST::CallExpr*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::CallExpr) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::CallExpr(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::CallExpr((class ::CppSharp::CppParser::AST::CallExpr*)_____ret, true);
 }
 
 ::System::Collections::Generic::List<CppSharp::Parser::AST::Expr^>^ CppSharp::Parser::AST::CallExpr::Arguments::get()
@@ -1994,8 +1994,8 @@ void CppSharp::Parser::AST::CallExpr::IsCallToStdMove::set(bool value)
 
 unsigned int CppSharp::Parser::AST::CallExpr::GetargumentsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CallExpr*)NativePtr)->getargumentsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CallExpr*)NativePtr)->getargumentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::MemberExpr::MemberExpr(class ::CppSharp::CppParser::AST::MemberExpr* native)
@@ -2304,9 +2304,9 @@ CppSharp::Parser::AST::CastExpr::CastExpr(CppSharp::Parser::AST::CastExpr^ _0)
 CppSharp::Parser::AST::CastExpr::operator CppSharp::Parser::AST::CastExpr^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::CastExpr) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::CastExpr(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::CastExpr((class ::CppSharp::CppParser::AST::CastExpr*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::CastExpr) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::CastExpr(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::CastExpr((class ::CppSharp::CppParser::AST::CastExpr*)_____ret, true);
 }
 
 CppSharp::Parser::AST::CastKind CppSharp::Parser::AST::CastExpr::CastKind::get()
@@ -2483,9 +2483,9 @@ CppSharp::Parser::AST::ExplicitCastExpr::ExplicitCastExpr(CppSharp::Parser::AST:
 CppSharp::Parser::AST::ExplicitCastExpr::operator CppSharp::Parser::AST::ExplicitCastExpr^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::ExplicitCastExpr) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::ExplicitCastExpr(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::ExplicitCastExpr((class ::CppSharp::CppParser::AST::ExplicitCastExpr*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::ExplicitCastExpr) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::ExplicitCastExpr(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::ExplicitCastExpr((class ::CppSharp::CppParser::AST::ExplicitCastExpr*)_____ret, true);
 }
 
 CppSharp::Parser::AST::QualifiedType^ CppSharp::Parser::AST::ExplicitCastExpr::TypeAsWritten::get()
@@ -2623,9 +2623,9 @@ CppSharp::Parser::AST::BinaryOperator::BinaryOperator(CppSharp::Parser::AST::Bin
 CppSharp::Parser::AST::BinaryOperator::operator CppSharp::Parser::AST::BinaryOperator^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::BinaryOperator) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::BinaryOperator(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::BinaryOperator((class ::CppSharp::CppParser::AST::BinaryOperator*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::BinaryOperator) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::BinaryOperator(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::BinaryOperator((class ::CppSharp::CppParser::AST::BinaryOperator*)_____ret, true);
 }
 
 CppSharp::Parser::SourceLocation CppSharp::Parser::AST::BinaryOperator::OperatorLoc::get()
@@ -2943,9 +2943,9 @@ CppSharp::Parser::AST::AbstractConditionalOperator::AbstractConditionalOperator(
 CppSharp::Parser::AST::AbstractConditionalOperator::operator CppSharp::Parser::AST::AbstractConditionalOperator^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::AbstractConditionalOperator) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::AbstractConditionalOperator(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::AbstractConditionalOperator((class ::CppSharp::CppParser::AST::AbstractConditionalOperator*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::AbstractConditionalOperator) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::AbstractConditionalOperator(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::AbstractConditionalOperator((class ::CppSharp::CppParser::AST::AbstractConditionalOperator*)_____ret, true);
 }
 
 CppSharp::Parser::AST::Expr^ CppSharp::Parser::AST::AbstractConditionalOperator::Cond::get()
@@ -5485,9 +5485,9 @@ CppSharp::Parser::AST::CXXNamedCastExpr::CXXNamedCastExpr(CppSharp::Parser::AST:
 CppSharp::Parser::AST::CXXNamedCastExpr::operator CppSharp::Parser::AST::CXXNamedCastExpr^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::CXXNamedCastExpr) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::CXXNamedCastExpr(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::CXXNamedCastExpr((class ::CppSharp::CppParser::AST::CXXNamedCastExpr*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::CXXNamedCastExpr) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::CXXNamedCastExpr(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::CXXNamedCastExpr((class ::CppSharp::CppParser::AST::CXXNamedCastExpr*)_____ret, true);
 }
 
 ::System::String^ CppSharp::Parser::AST::CXXNamedCastExpr::CastName::get()
@@ -6619,9 +6619,9 @@ CppSharp::Parser::AST::CXXConstructExpr::CXXConstructExpr(CppSharp::Parser::AST:
 
 CppSharp::Parser::AST::Expr^ CppSharp::Parser::AST::CXXConstructExpr::Getarguments(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CXXConstructExpr*)NativePtr)->getarguments(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CXXConstructExpr*)NativePtr)->getarguments(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)___ret);
 }
 
 void CppSharp::Parser::AST::CXXConstructExpr::Addarguments(CppSharp::Parser::AST::Expr^ s)
@@ -6650,9 +6650,9 @@ CppSharp::Parser::AST::CXXConstructExpr::CXXConstructExpr(CppSharp::Parser::AST:
 CppSharp::Parser::AST::CXXConstructExpr::operator CppSharp::Parser::AST::CXXConstructExpr^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::CXXConstructExpr) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::CXXConstructExpr(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::CXXConstructExpr((class ::CppSharp::CppParser::AST::CXXConstructExpr*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::CXXConstructExpr) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::CXXConstructExpr(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::CXXConstructExpr((class ::CppSharp::CppParser::AST::CXXConstructExpr*)_____ret, true);
 }
 
 ::System::Collections::Generic::List<CppSharp::Parser::AST::Expr^>^ CppSharp::Parser::AST::CXXConstructExpr::Arguments::get()
@@ -6764,8 +6764,8 @@ void CppSharp::Parser::AST::CXXConstructExpr::NumArgs::set(unsigned int value)
 
 unsigned int CppSharp::Parser::AST::CXXConstructExpr::GetargumentsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CXXConstructExpr*)NativePtr)->getargumentsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CXXConstructExpr*)NativePtr)->getargumentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::CXXInheritedCtorInitExpr::CXXInheritedCtorInitExpr(class ::CppSharp::CppParser::AST::CXXInheritedCtorInitExpr* native)
@@ -7002,9 +7002,9 @@ CppSharp::Parser::AST::LambdaExpr::LambdaExpr()
 
 CppSharp::Parser::AST::Expr^ CppSharp::Parser::AST::LambdaExpr::GetcaptureInits(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::LambdaExpr*)NativePtr)->getcapture_inits(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::LambdaExpr*)NativePtr)->getcapture_inits(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)___ret);
 }
 
 void CppSharp::Parser::AST::LambdaExpr::AddcaptureInits(CppSharp::Parser::AST::Expr^ s)
@@ -7149,8 +7149,8 @@ void CppSharp::Parser::AST::LambdaExpr::HasExplicitResultType::set(bool value)
 
 unsigned int CppSharp::Parser::AST::LambdaExpr::GetcaptureInitsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::LambdaExpr*)NativePtr)->getcapture_initsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::LambdaExpr*)NativePtr)->getcapture_initsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::CXXScalarValueInitExpr::CXXScalarValueInitExpr(class ::CppSharp::CppParser::AST::CXXScalarValueInitExpr* native)
@@ -7245,9 +7245,9 @@ CppSharp::Parser::AST::CXXNewExpr::CXXNewExpr()
 
 CppSharp::Parser::AST::Expr^ CppSharp::Parser::AST::CXXNewExpr::GetplacementArguments(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CXXNewExpr*)NativePtr)->getplacement_arguments(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CXXNewExpr*)NativePtr)->getplacement_arguments(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)___ret);
 }
 
 void CppSharp::Parser::AST::CXXNewExpr::AddplacementArguments(CppSharp::Parser::AST::Expr^ s)
@@ -7444,8 +7444,8 @@ void CppSharp::Parser::AST::CXXNewExpr::DirectInitRange::set(CppSharp::Parser::S
 
 unsigned int CppSharp::Parser::AST::CXXNewExpr::GetplacementArgumentsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CXXNewExpr*)NativePtr)->getplacement_argumentsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CXXNewExpr*)NativePtr)->getplacement_argumentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::CXXDeleteExpr::CXXDeleteExpr(class ::CppSharp::CppParser::AST::CXXDeleteExpr* native)
@@ -7980,9 +7980,9 @@ CppSharp::Parser::AST::OverloadExpr::OverloadExpr(CppSharp::Parser::AST::Overloa
 CppSharp::Parser::AST::OverloadExpr::operator CppSharp::Parser::AST::OverloadExpr^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::OverloadExpr) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::OverloadExpr(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::OverloadExpr((class ::CppSharp::CppParser::AST::OverloadExpr*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::OverloadExpr) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::OverloadExpr(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::OverloadExpr((class ::CppSharp::CppParser::AST::OverloadExpr*)_____ret, true);
 }
 
 unsigned int CppSharp::Parser::AST::OverloadExpr::NumDecls::get()
@@ -8353,9 +8353,9 @@ CppSharp::Parser::AST::CXXUnresolvedConstructExpr::CXXUnresolvedConstructExpr()
 
 CppSharp::Parser::AST::Expr^ CppSharp::Parser::AST::CXXUnresolvedConstructExpr::Getarguments(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CXXUnresolvedConstructExpr*)NativePtr)->getarguments(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CXXUnresolvedConstructExpr*)NativePtr)->getarguments(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)___ret);
 }
 
 void CppSharp::Parser::AST::CXXUnresolvedConstructExpr::Addarguments(CppSharp::Parser::AST::Expr^ s)
@@ -8462,8 +8462,8 @@ void CppSharp::Parser::AST::CXXUnresolvedConstructExpr::ArgSize::set(unsigned in
 
 unsigned int CppSharp::Parser::AST::CXXUnresolvedConstructExpr::GetargumentsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CXXUnresolvedConstructExpr*)NativePtr)->getargumentsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CXXUnresolvedConstructExpr*)NativePtr)->getargumentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::CXXDependentScopeMemberExpr::CXXDependentScopeMemberExpr(class ::CppSharp::CppParser::AST::CXXDependentScopeMemberExpr* native)
@@ -9495,9 +9495,9 @@ CppSharp::Parser::AST::CoroutineSuspendExpr::CoroutineSuspendExpr(CppSharp::Pars
 CppSharp::Parser::AST::CoroutineSuspendExpr::operator CppSharp::Parser::AST::CoroutineSuspendExpr^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::CoroutineSuspendExpr) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::CoroutineSuspendExpr(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::CoroutineSuspendExpr((class ::CppSharp::CppParser::AST::CoroutineSuspendExpr*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::CoroutineSuspendExpr) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::CoroutineSuspendExpr(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::CoroutineSuspendExpr((class ::CppSharp::CppParser::AST::CoroutineSuspendExpr*)_____ret, true);
 }
 
 CppSharp::Parser::SourceLocation CppSharp::Parser::AST::CoroutineSuspendExpr::KeywordLoc::get()
diff --git a/src/CppParser/Bindings/CLI/Sources.cpp b/src/CppParser/Bindings/CLI/Sources.cpp
index 31fe07acf..e47245567 100644
--- a/src/CppParser/Bindings/CLI/Sources.cpp
+++ b/src/CppParser/Bindings/CLI/Sources.cpp
@@ -37,8 +37,8 @@ CppSharp::Parser::SourceLocation::SourceLocation(unsigned int ID)
 
 CppSharp::Parser::SourceLocation::operator CppSharp::Parser::SourceLocation(unsigned int ID)
 {
-    auto __ret = (::CppSharp::CppParser::SourceLocation) ID;
-    return ::CppSharp::Parser::SourceLocation((struct ::CppSharp::CppParser::SourceLocation*)&__ret);
+    auto ___ret = (::CppSharp::CppParser::SourceLocation) ID;
+    return ::CppSharp::Parser::SourceLocation((struct ::CppSharp::CppParser::SourceLocation*)&___ret);
 }
 
 unsigned int CppSharp::Parser::SourceLocation::ID::get()
diff --git a/src/CppParser/Bindings/CLI/Stmt.cpp b/src/CppParser/Bindings/CLI/Stmt.cpp
index c683f4fc7..0063c1423 100644
--- a/src/CppParser/Bindings/CLI/Stmt.cpp
+++ b/src/CppParser/Bindings/CLI/Stmt.cpp
@@ -65,9 +65,9 @@ CppSharp::Parser::AST::Stmt::Stmt(CppSharp::Parser::AST::Stmt^ _0)
 CppSharp::Parser::AST::Stmt::operator CppSharp::Parser::AST::Stmt^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::Stmt) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::Stmt(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Stmt((class ::CppSharp::CppParser::AST::Stmt*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::Stmt) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::Stmt(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Stmt((class ::CppSharp::CppParser::AST::Stmt*)_____ret, true);
 }
 
 ::System::IntPtr CppSharp::Parser::AST::Stmt::__Instance::get()
@@ -165,9 +165,9 @@ CppSharp::Parser::AST::DeclStmt::DeclStmt()
 
 CppSharp::Parser::AST::Declaration^ CppSharp::Parser::AST::DeclStmt::Getdecls(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclStmt*)NativePtr)->getdecls(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Declaration((class ::CppSharp::CppParser::AST::Declaration*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclStmt*)NativePtr)->getdecls(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Declaration((class ::CppSharp::CppParser::AST::Declaration*)___ret);
 }
 
 void CppSharp::Parser::AST::DeclStmt::Adddecls(CppSharp::Parser::AST::Declaration^ s)
@@ -238,8 +238,8 @@ void CppSharp::Parser::AST::DeclStmt::SingleDecl::set(CppSharp::Parser::AST::Dec
 
 unsigned int CppSharp::Parser::AST::DeclStmt::GetdeclsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DeclStmt*)NativePtr)->getdeclsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DeclStmt*)NativePtr)->getdeclsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::NullStmt::NullStmt(class ::CppSharp::CppParser::AST::NullStmt* native)
@@ -344,9 +344,9 @@ CppSharp::Parser::AST::CompoundStmt::CompoundStmt()
 
 CppSharp::Parser::AST::Stmt^ CppSharp::Parser::AST::CompoundStmt::Getbody(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CompoundStmt*)NativePtr)->getbody(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Stmt((class ::CppSharp::CppParser::AST::Stmt*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CompoundStmt*)NativePtr)->getbody(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Stmt((class ::CppSharp::CppParser::AST::Stmt*)___ret);
 }
 
 void CppSharp::Parser::AST::CompoundStmt::Addbody(CppSharp::Parser::AST::Stmt^ s)
@@ -461,8 +461,8 @@ void CppSharp::Parser::AST::CompoundStmt::RBracLoc::set(CppSharp::Parser::Source
 
 unsigned int CppSharp::Parser::AST::CompoundStmt::GetbodyCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CompoundStmt*)NativePtr)->getbodyCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CompoundStmt*)NativePtr)->getbodyCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::SwitchCase::SwitchCase(class ::CppSharp::CppParser::AST::SwitchCase* native)
@@ -517,9 +517,9 @@ CppSharp::Parser::AST::SwitchCase::SwitchCase(CppSharp::Parser::AST::SwitchCase^
 CppSharp::Parser::AST::SwitchCase::operator CppSharp::Parser::AST::SwitchCase^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::SwitchCase) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::SwitchCase(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::SwitchCase((class ::CppSharp::CppParser::AST::SwitchCase*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::SwitchCase) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::SwitchCase(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::SwitchCase((class ::CppSharp::CppParser::AST::SwitchCase*)_____ret, true);
 }
 
 CppSharp::Parser::SourceLocation CppSharp::Parser::AST::SwitchCase::KeywordLoc::get()
@@ -1802,9 +1802,9 @@ CppSharp::Parser::AST::AsmStmt::AsmStmt(CppSharp::Parser::AST::StmtClass klass)
 
 CppSharp::Parser::AST::Expr^ CppSharp::Parser::AST::AsmStmt::Getinputs(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::AsmStmt*)NativePtr)->getinputs(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::AsmStmt*)NativePtr)->getinputs(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)___ret);
 }
 
 void CppSharp::Parser::AST::AsmStmt::Addinputs(CppSharp::Parser::AST::Expr^ s)
@@ -1822,9 +1822,9 @@ void CppSharp::Parser::AST::AsmStmt::Clearinputs()
 
 CppSharp::Parser::AST::Expr^ CppSharp::Parser::AST::AsmStmt::Getoutputs(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::AsmStmt*)NativePtr)->getoutputs(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::AsmStmt*)NativePtr)->getoutputs(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)___ret);
 }
 
 void CppSharp::Parser::AST::AsmStmt::Addoutputs(CppSharp::Parser::AST::Expr^ s)
@@ -1853,9 +1853,9 @@ CppSharp::Parser::AST::AsmStmt::AsmStmt(CppSharp::Parser::AST::AsmStmt^ _0)
 CppSharp::Parser::AST::AsmStmt::operator CppSharp::Parser::AST::AsmStmt^(CppSharp::Parser::AST::StmtClass klass)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::StmtClass)klass;
-    auto __ret = (::CppSharp::CppParser::AST::AsmStmt) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::AsmStmt(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::AsmStmt((class ::CppSharp::CppParser::AST::AsmStmt*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::AsmStmt) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::AsmStmt(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::AsmStmt((class ::CppSharp::CppParser::AST::AsmStmt*)_____ret, true);
 }
 
 ::System::Collections::Generic::List<CppSharp::Parser::AST::Expr^>^ CppSharp::Parser::AST::AsmStmt::Inputs::get()
@@ -1978,14 +1978,14 @@ void CppSharp::Parser::AST::AsmStmt::NumClobbers::set(unsigned int value)
 
 unsigned int CppSharp::Parser::AST::AsmStmt::GetinputsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::AsmStmt*)NativePtr)->getinputsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::AsmStmt*)NativePtr)->getinputsCount();
+    return ___ret;
 }
 
 unsigned int CppSharp::Parser::AST::AsmStmt::GetoutputsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::AsmStmt*)NativePtr)->getoutputsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::AsmStmt*)NativePtr)->getoutputsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::GCCAsmStmt::AsmStringPiece::AsmStringPiece(class ::CppSharp::CppParser::AST::GCCAsmStmt::AsmStringPiece* native)
@@ -2683,9 +2683,9 @@ CppSharp::Parser::AST::CapturedStmt::CapturedStmt()
 
 CppSharp::Parser::AST::Expr^ CppSharp::Parser::AST::CapturedStmt::GetcaptureInits(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CapturedStmt*)NativePtr)->getcapture_inits(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CapturedStmt*)NativePtr)->getcapture_inits(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Expr((class ::CppSharp::CppParser::AST::Expr*)___ret);
 }
 
 void CppSharp::Parser::AST::CapturedStmt::AddcaptureInits(CppSharp::Parser::AST::Expr^ s)
@@ -2756,8 +2756,8 @@ void CppSharp::Parser::AST::CapturedStmt::CaptureSize::set(unsigned int value)
 
 unsigned int CppSharp::Parser::AST::CapturedStmt::GetcaptureInitsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::CapturedStmt*)NativePtr)->getcapture_initsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::CapturedStmt*)NativePtr)->getcapture_initsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::CXXCatchStmt::CXXCatchStmt(class ::CppSharp::CppParser::AST::CXXCatchStmt* native)
diff --git a/src/CppParser/Bindings/CLI/Types.cpp b/src/CppParser/Bindings/CLI/Types.cpp
index 5cd2f88b9..7edd2e952 100644
--- a/src/CppParser/Bindings/CLI/Types.cpp
+++ b/src/CppParser/Bindings/CLI/Types.cpp
@@ -56,9 +56,9 @@ CppSharp::Parser::AST::Type::Type(CppSharp::Parser::AST::Type^ _0)
 CppSharp::Parser::AST::Type::operator CppSharp::Parser::AST::Type^(CppSharp::Parser::AST::TypeKind kind)
 {
     auto __arg0 = (enum ::CppSharp::CppParser::AST::TypeKind)kind;
-    auto __ret = (::CppSharp::CppParser::AST::Type) __arg0;
-    auto ____ret = new class ::CppSharp::CppParser::AST::Type(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Type((class ::CppSharp::CppParser::AST::Type*)____ret, true);
+    auto ___ret = (::CppSharp::CppParser::AST::Type) __arg0;
+    auto _____ret = new class ::CppSharp::CppParser::AST::Type(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Type((class ::CppSharp::CppParser::AST::Type*)_____ret, true);
 }
 
 ::System::IntPtr CppSharp::Parser::AST::Type::__Instance::get()
@@ -420,9 +420,9 @@ CppSharp::Parser::AST::FunctionType::FunctionType()
 
 CppSharp::Parser::AST::Parameter^ CppSharp::Parser::AST::FunctionType::GetParameters(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::FunctionType*)NativePtr)->getParameters(i);
-    if (__ret == nullptr) return nullptr;
-    return (__ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Parameter((class ::CppSharp::CppParser::AST::Parameter*)__ret);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::FunctionType*)NativePtr)->getParameters(i);
+    if (___ret == nullptr) return nullptr;
+    return (___ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::Parameter((class ::CppSharp::CppParser::AST::Parameter*)___ret);
 }
 
 void CppSharp::Parser::AST::FunctionType::AddParameters(CppSharp::Parser::AST::Parameter^ s)
@@ -505,8 +505,8 @@ void CppSharp::Parser::AST::FunctionType::Parameters::set(::System::Collections:
 
 unsigned int CppSharp::Parser::AST::FunctionType::ParametersCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::FunctionType*)NativePtr)->getParametersCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::FunctionType*)NativePtr)->getParametersCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::PointerType::PointerType(class ::CppSharp::CppParser::AST::PointerType* native)
@@ -961,9 +961,9 @@ CppSharp::Parser::AST::TemplateSpecializationType::TemplateSpecializationType(Cp
 
 CppSharp::Parser::AST::TemplateArgument^ CppSharp::Parser::AST::TemplateSpecializationType::GetArguments(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::TemplateSpecializationType*)NativePtr)->getArguments(i);
-    auto ____ret = new struct ::CppSharp::CppParser::AST::TemplateArgument(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TemplateArgument((struct ::CppSharp::CppParser::AST::TemplateArgument*)____ret, true);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::TemplateSpecializationType*)NativePtr)->getArguments(i);
+    auto _____ret = new struct ::CppSharp::CppParser::AST::TemplateArgument(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TemplateArgument((struct ::CppSharp::CppParser::AST::TemplateArgument*)_____ret, true);
 }
 
 void CppSharp::Parser::AST::TemplateSpecializationType::AddArguments(CppSharp::Parser::AST::TemplateArgument^ s)
@@ -1029,8 +1029,8 @@ void CppSharp::Parser::AST::TemplateSpecializationType::Desugared::set(CppSharp:
 
 unsigned int CppSharp::Parser::AST::TemplateSpecializationType::ArgumentsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::TemplateSpecializationType*)NativePtr)->getArgumentsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::TemplateSpecializationType*)NativePtr)->getArgumentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::DependentTemplateSpecializationType::DependentTemplateSpecializationType(class ::CppSharp::CppParser::AST::DependentTemplateSpecializationType* native)
@@ -1082,9 +1082,9 @@ CppSharp::Parser::AST::DependentTemplateSpecializationType::DependentTemplateSpe
 
 CppSharp::Parser::AST::TemplateArgument^ CppSharp::Parser::AST::DependentTemplateSpecializationType::GetArguments(unsigned int i)
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DependentTemplateSpecializationType*)NativePtr)->getArguments(i);
-    auto ____ret = new struct ::CppSharp::CppParser::AST::TemplateArgument(__ret);
-    return (____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TemplateArgument((struct ::CppSharp::CppParser::AST::TemplateArgument*)____ret, true);
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DependentTemplateSpecializationType*)NativePtr)->getArguments(i);
+    auto _____ret = new struct ::CppSharp::CppParser::AST::TemplateArgument(___ret);
+    return (_____ret == nullptr) ? nullptr : gcnew ::CppSharp::Parser::AST::TemplateArgument((struct ::CppSharp::CppParser::AST::TemplateArgument*)_____ret, true);
 }
 
 void CppSharp::Parser::AST::DependentTemplateSpecializationType::AddArguments(CppSharp::Parser::AST::TemplateArgument^ s)
@@ -1140,8 +1140,8 @@ void CppSharp::Parser::AST::DependentTemplateSpecializationType::Desugared::set(
 
 unsigned int CppSharp::Parser::AST::DependentTemplateSpecializationType::ArgumentsCount::get()
 {
-    auto __ret = ((class ::CppSharp::CppParser::AST::DependentTemplateSpecializationType*)NativePtr)->getArgumentsCount();
-    return __ret;
+    auto ___ret = ((class ::CppSharp::CppParser::AST::DependentTemplateSpecializationType*)NativePtr)->getArgumentsCount();
+    return ___ret;
 }
 
 CppSharp::Parser::AST::TemplateParameterType::TemplateParameterType(class ::CppSharp::CppParser::AST::TemplateParameterType* native)
diff --git a/src/CppParser/Bindings/CSharp/i686-apple-darwin12.4.0/CppSharp.CppParser-symbols.cpp b/src/CppParser/Bindings/CSharp/i686-apple-darwin12.4.0/CppSharp.CppParser-symbols.cpp
index 0ac2c5a0e..38c9d198b 100644
--- a/src/CppParser/Bindings/CSharp/i686-apple-darwin12.4.0/CppSharp.CppParser-symbols.cpp
+++ b/src/CppParser/Bindings/CSharp/i686-apple-darwin12.4.0/CppSharp.CppParser-symbols.cpp
@@ -35,7 +35,6 @@ class CppSharp::CppParser::AST::InlineCommandComment& (CppSharp::CppParser::AST:
 extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_InlineCommandComment__InlineCommandComment(CppSharp::CppParser::AST::InlineCommandComment*__instance) { __instance->~InlineCommandComment(); }
 class CppSharp::CppParser::AST::HTMLTagComment& (CppSharp::CppParser::AST::HTMLTagComment::*_15)(class CppSharp::CppParser::AST::HTMLTagComment&&) = &CppSharp::CppParser::AST::HTMLTagComment::operator=;
 class CppSharp::CppParser::AST::HTMLStartTagComment::Attribute& (CppSharp::CppParser::AST::HTMLStartTagComment::Attribute::*_16)(const class CppSharp::CppParser::AST::HTMLStartTagComment::Attribute&) = &CppSharp::CppParser::AST::HTMLStartTagComment::Attribute::operator=;
-extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment_S_Attribute__Attribute(CppSharp::CppParser::AST::HTMLStartTagComment::Attribute*__instance) { __instance->~Attribute(); }
 extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment_HTMLStartTagComment___1__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment(void* __instance, const CppSharp::CppParser::AST::HTMLStartTagComment& _0) { ::new (__instance) CppSharp::CppParser::AST::HTMLStartTagComment(_0); }
 class CppSharp::CppParser::AST::HTMLStartTagComment& (CppSharp::CppParser::AST::HTMLStartTagComment::*_17)(class CppSharp::CppParser::AST::HTMLStartTagComment&&) = &CppSharp::CppParser::AST::HTMLStartTagComment::operator=;
 extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment__HTMLStartTagComment(CppSharp::CppParser::AST::HTMLStartTagComment*__instance) { __instance->~HTMLStartTagComment(); }
diff --git a/src/CppParser/Bindings/CSharp/i686-apple-darwin12.4.0/CppSharp.CppParser.cs b/src/CppParser/Bindings/CSharp/i686-apple-darwin12.4.0/CppSharp.CppParser.cs
index 5fcdfc4eb..71c74eac5 100644
--- a/src/CppParser/Bindings/CSharp/i686-apple-darwin12.4.0/CppSharp.CppParser.cs
+++ b/src/CppParser/Bindings/CSharp/i686-apple-darwin12.4.0/CppSharp.CppParser.cs
@@ -13,6 +13,8 @@
 
 [assembly:InternalsVisibleTo("CppSharp.Parser")]
 
+#pragma warning disable CS0109 // Member does not hide an inherited member; new keyword is not required
+
 namespace CppSharp
 {
     namespace Parser
@@ -121,6 +123,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static NativeLibrary __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NativeLibrary(native.ToPointer(), skipVTables);
                 }
 
@@ -203,8 +207,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public string GetSymbols(uint i)
                 {
-                    var __ret = __Internal.GetSymbols(__Instance, i);
-                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                    var ___ret = __Internal.GetSymbols(__Instance, i);
+                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
                 }
 
                 public void AddSymbols(string s)
@@ -219,8 +223,8 @@ public void ClearSymbols()
 
                 public string GetDependencies(uint i)
                 {
-                    var __ret = __Internal.GetDependencies(__Instance, i);
-                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                    var ___ret = __Internal.GetDependencies(__Instance, i);
+                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
                 }
 
                 public void AddDependencies(string s)
@@ -264,8 +268,8 @@ public uint SymbolsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSymbolsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSymbolsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -273,8 +277,8 @@ public uint DependenciesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetDependenciesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetDependenciesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -313,6 +317,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Comment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Comment(native.ToPointer(), skipVTables);
                 }
 
@@ -426,6 +432,8 @@ public unsafe partial class BlockContentComment : global::CppSharp.Parser.AST.Co
 
                 internal static new BlockContentComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockContentComment(native.ToPointer(), skipVTables);
                 }
 
@@ -530,6 +538,8 @@ public unsafe partial class FullComment : global::CppSharp.Parser.AST.Comment, I
 
                 internal static new FullComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FullComment(native.ToPointer(), skipVTables);
                 }
 
@@ -607,8 +617,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BlockContentComment GetBlocks(uint i)
                 {
-                    var __ret = __Internal.GetBlocks(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.BlockContentComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetBlocks(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.BlockContentComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -630,8 +640,8 @@ public uint BlocksCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBlocksCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBlocksCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -656,6 +666,8 @@ public unsafe partial class InlineContentComment : global::CppSharp.Parser.AST.C
 
                 internal static new InlineContentComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InlineContentComment(native.ToPointer(), skipVTables);
                 }
 
@@ -774,6 +786,8 @@ public unsafe partial class ParagraphComment : global::CppSharp.Parser.AST.Block
 
                 internal static new ParagraphComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParagraphComment(native.ToPointer(), skipVTables);
                 }
 
@@ -851,8 +865,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.InlineContentComment GetContent(uint i)
                 {
-                    var __ret = __Internal.GetContent(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.InlineContentComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetContent(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.InlineContentComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -887,8 +901,8 @@ public uint ContentCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetContentCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetContentCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -965,6 +979,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Argument __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Argument(native.ToPointer(), skipVTables);
                     }
 
@@ -1062,6 +1078,8 @@ public string Text
 
                 internal static new BlockCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1148,11 +1166,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BlockCommandComment.Argument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.BlockCommandComment.Argument.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.BlockCommandComment.Argument.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.BlockCommandComment.Argument s)
@@ -1204,8 +1222,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1241,6 +1259,8 @@ public enum PassDirection : uint
 
                 internal static new ParamCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParamCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1378,6 +1398,8 @@ public unsafe partial class TParamCommandComment : global::CppSharp.Parser.AST.B
 
                 internal static new TParamCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TParamCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1455,8 +1477,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public uint GetPosition(uint i)
                 {
-                    var __ret = __Internal.GetPosition(__Instance, i);
-                    return __ret;
+                    var ___ret = __Internal.GetPosition(__Instance, i);
+                    return ___ret;
                 }
 
                 public void AddPosition(ref uint s)
@@ -1477,8 +1499,8 @@ public uint PositionCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetPositionCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetPositionCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1503,6 +1525,8 @@ public unsafe partial class VerbatimBlockLineComment : global::CppSharp.Parser.A
 
                 internal static new VerbatimBlockLineComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimBlockLineComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1628,6 +1652,8 @@ public unsafe partial class VerbatimBlockComment : global::CppSharp.Parser.AST.B
 
                 internal static new VerbatimBlockComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimBlockComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1705,8 +1731,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VerbatimBlockLineComment GetLines(uint i)
                 {
-                    var __ret = __Internal.GetLines(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.VerbatimBlockLineComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetLines(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.VerbatimBlockLineComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -1728,8 +1754,8 @@ public uint LinesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetLinesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetLinesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1757,6 +1783,8 @@ public unsafe partial class VerbatimLineComment : global::CppSharp.Parser.AST.Bl
 
                 internal static new VerbatimLineComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimLineComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1926,6 +1954,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Argument __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Argument(native.ToPointer(), skipVTables);
                     }
 
@@ -2023,6 +2053,8 @@ public string Text
 
                 internal static new InlineCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InlineCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2100,11 +2132,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.InlineCommandComment.Argument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.InlineCommandComment.Argument.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.InlineCommandComment.Argument.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.InlineCommandComment.Argument s)
@@ -2150,8 +2182,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -2176,6 +2208,8 @@ public unsafe partial class HTMLTagComment : global::CppSharp.Parser.AST.InlineC
 
                 internal static new HTMLTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2318,6 +2352,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Attribute __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Attribute(native.ToPointer(), skipVTables);
                     }
 
@@ -2429,6 +2465,8 @@ public string Value
 
                 internal static new HTMLStartTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLStartTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2506,11 +2544,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute GetAttributes(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal();
-                    __Internal.GetAttributes(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal();
+                    __Internal.GetAttributes(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddAttributes(global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute s)
@@ -2544,8 +2582,8 @@ public uint AttributesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetAttributesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetAttributesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -2571,6 +2609,8 @@ public unsafe partial class HTMLEndTagComment : global::CppSharp.Parser.AST.HTML
 
                 internal static new HTMLEndTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLEndTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2682,6 +2722,8 @@ public unsafe partial class TextComment : global::CppSharp.Parser.AST.InlineCont
 
                 internal static new TextComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TextComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2812,6 +2854,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static RawComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new RawComment(native.ToPointer(), skipVTables);
                 }
 
@@ -3070,6 +3114,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static SourceRange __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new SourceRange(native.ToPointer(), skipVTables);
             }
 
@@ -3292,6 +3338,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Type __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Type(native.ToPointer(), skipVTables);
                 }
 
@@ -3435,6 +3483,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static TypeQualifiers __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeQualifiers(native.ToPointer(), skipVTables);
                 }
 
@@ -3584,6 +3634,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static QualifiedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new QualifiedType(native.ToPointer(), skipVTables);
                 }
 
@@ -3707,6 +3759,8 @@ public unsafe partial class TagType : global::CppSharp.Parser.AST.Type, IDisposa
 
                 internal static new TagType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TagType(native.ToPointer(), skipVTables);
                 }
 
@@ -3811,6 +3865,8 @@ public enum ArraySize
 
                 internal static new ArrayType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayType(native.ToPointer(), skipVTables);
                 }
 
@@ -3962,6 +4018,8 @@ public unsafe partial class FunctionType : global::CppSharp.Parser.AST.Type, IDi
 
                 internal static new FunctionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionType(native.ToPointer(), skipVTables);
                 }
 
@@ -4039,8 +4097,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Parameter GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -4103,8 +4161,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -4136,6 +4194,8 @@ public enum TypeModifier
 
                 internal static new PointerType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PointerType(native.ToPointer(), skipVTables);
                 }
 
@@ -4243,6 +4303,8 @@ public unsafe partial class MemberPointerType : global::CppSharp.Parser.AST.Type
 
                 internal static new MemberPointerType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MemberPointerType(native.ToPointer(), skipVTables);
                 }
 
@@ -4337,6 +4399,8 @@ public unsafe partial class TypedefType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new TypedefType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefType(native.ToPointer(), skipVTables);
                 }
 
@@ -4431,6 +4495,8 @@ public unsafe partial class AttributedType : global::CppSharp.Parser.AST.Type, I
 
                 internal static new AttributedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AttributedType(native.ToPointer(), skipVTables);
                 }
 
@@ -4542,6 +4608,8 @@ public unsafe partial class DecayedType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new DecayedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DecayedType(native.ToPointer(), skipVTables);
                 }
 
@@ -4697,6 +4765,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static TemplateArgument __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateArgument(native.ToPointer(), skipVTables);
                 }
 
@@ -4863,6 +4933,8 @@ public unsafe partial class TemplateSpecializationType : global::CppSharp.Parser
 
                 internal static new TemplateSpecializationType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateSpecializationType(native.ToPointer(), skipVTables);
                 }
 
@@ -4940,9 +5012,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -4991,8 +5063,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -5031,6 +5103,8 @@ public unsafe partial class DependentTemplateSpecializationType : global::CppSha
 
                 internal static new DependentTemplateSpecializationType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentTemplateSpecializationType(native.ToPointer(), skipVTables);
                 }
 
@@ -5108,9 +5182,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -5145,8 +5219,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -5175,6 +5249,8 @@ public unsafe partial class TemplateParameterType : global::CppSharp.Parser.AST.
 
                 internal static new TemplateParameterType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameterType(native.ToPointer(), skipVTables);
                 }
 
@@ -5323,6 +5399,8 @@ public unsafe partial class TemplateParameterSubstitutionType : global::CppSharp
 
                 internal static new TemplateParameterSubstitutionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameterSubstitutionType(native.ToPointer(), skipVTables);
                 }
 
@@ -5432,6 +5510,8 @@ public unsafe partial class InjectedClassNameType : global::CppSharp.Parser.AST.
 
                 internal static new InjectedClassNameType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InjectedClassNameType(native.ToPointer(), skipVTables);
                 }
 
@@ -5544,6 +5624,8 @@ public unsafe partial class DependentNameType : global::CppSharp.Parser.AST.Type
 
                 internal static new DependentNameType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentNameType(native.ToPointer(), skipVTables);
                 }
 
@@ -5666,6 +5748,8 @@ public unsafe partial class PackExpansionType : global::CppSharp.Parser.AST.Type
 
                 internal static new PackExpansionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PackExpansionType(native.ToPointer(), skipVTables);
                 }
 
@@ -5746,6 +5830,8 @@ public unsafe partial class UnaryTransformType : global::CppSharp.Parser.AST.Typ
 
                 internal static new UnaryTransformType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryTransformType(native.ToPointer(), skipVTables);
                 }
 
@@ -5855,6 +5941,8 @@ public unsafe partial class UnresolvedUsingType : global::CppSharp.Parser.AST.Ty
 
                 internal static new UnresolvedUsingType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedUsingType(native.ToPointer(), skipVTables);
                 }
 
@@ -5949,6 +6037,8 @@ public unsafe partial class VectorType : global::CppSharp.Parser.AST.Type, IDisp
 
                 internal static new VectorType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VectorType(native.ToPointer(), skipVTables);
                 }
 
@@ -6056,6 +6146,8 @@ public unsafe partial class BuiltinType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new BuiltinType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BuiltinType(native.ToPointer(), skipVTables);
                 }
 
@@ -6418,6 +6510,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Declaration __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Declaration(native.ToPointer(), skipVTables);
                 }
 
@@ -6500,8 +6594,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.PreprocessedEntity GetPreprocessedEntities(uint i)
                 {
-                    var __ret = __Internal.GetPreprocessedEntities(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.PreprocessedEntity.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetPreprocessedEntities(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.PreprocessedEntity.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -6521,8 +6615,8 @@ public void ClearPreprocessedEntities()
 
                 public global::CppSharp.Parser.AST.Declaration GetRedeclarations(uint i)
                 {
-                    var __ret = __Internal.GetRedeclarations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetRedeclarations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -6815,8 +6909,8 @@ public uint PreprocessedEntitiesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetPreprocessedEntitiesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetPreprocessedEntitiesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -6824,8 +6918,8 @@ public uint RedeclarationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetRedeclarationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetRedeclarationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -6989,6 +7083,8 @@ public unsafe partial class DeclarationContext : global::CppSharp.Parser.AST.Dec
 
                 internal static new DeclarationContext __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclarationContext(native.ToPointer(), skipVTables);
                 }
 
@@ -7066,8 +7162,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Namespace GetNamespaces(uint i)
                 {
-                    var __ret = __Internal.GetNamespaces(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Namespace.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetNamespaces(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Namespace.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7087,8 +7183,8 @@ public void ClearNamespaces()
 
                 public global::CppSharp.Parser.AST.Enumeration GetEnums(uint i)
                 {
-                    var __ret = __Internal.GetEnums(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetEnums(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7108,8 +7204,8 @@ public void ClearEnums()
 
                 public global::CppSharp.Parser.AST.Function GetFunctions(uint i)
                 {
-                    var __ret = __Internal.GetFunctions(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Function.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFunctions(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Function.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7129,8 +7225,8 @@ public void ClearFunctions()
 
                 public global::CppSharp.Parser.AST.Class GetClasses(uint i)
                 {
-                    var __ret = __Internal.GetClasses(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Class.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetClasses(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Class.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7150,8 +7246,8 @@ public void ClearClasses()
 
                 public global::CppSharp.Parser.AST.Template GetTemplates(uint i)
                 {
-                    var __ret = __Internal.GetTemplates(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Template.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTemplates(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Template.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7171,8 +7267,8 @@ public void ClearTemplates()
 
                 public global::CppSharp.Parser.AST.TypedefDecl GetTypedefs(uint i)
                 {
-                    var __ret = __Internal.GetTypedefs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TypedefDecl.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTypedefs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TypedefDecl.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7192,8 +7288,8 @@ public void ClearTypedefs()
 
                 public global::CppSharp.Parser.AST.TypeAlias GetTypeAliases(uint i)
                 {
-                    var __ret = __Internal.GetTypeAliases(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TypeAlias.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTypeAliases(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TypeAlias.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7213,8 +7309,8 @@ public void ClearTypeAliases()
 
                 public global::CppSharp.Parser.AST.Variable GetVariables(uint i)
                 {
-                    var __ret = __Internal.GetVariables(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Variable.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetVariables(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Variable.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7234,8 +7330,8 @@ public void ClearVariables()
 
                 public global::CppSharp.Parser.AST.Friend GetFriends(uint i)
                 {
-                    var __ret = __Internal.GetFriends(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Friend.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFriends(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Friend.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7275,8 +7371,8 @@ public uint NamespacesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetNamespacesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetNamespacesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7284,8 +7380,8 @@ public uint EnumsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetEnumsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetEnumsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7293,8 +7389,8 @@ public uint FunctionsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFunctionsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFunctionsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7302,8 +7398,8 @@ public uint ClassesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetClassesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetClassesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7311,8 +7407,8 @@ public uint TemplatesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTemplatesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTemplatesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7320,8 +7416,8 @@ public uint TypedefsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTypedefsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTypedefsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7329,8 +7425,8 @@ public uint TypeAliasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTypeAliasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTypeAliasesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7338,8 +7434,8 @@ public uint VariablesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetVariablesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetVariablesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7347,8 +7443,8 @@ public uint FriendsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFriendsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFriendsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -7394,6 +7490,8 @@ public unsafe partial class TypedefNameDecl : global::CppSharp.Parser.AST.Declar
 
                 internal static new TypedefNameDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefNameDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -7531,6 +7629,8 @@ public unsafe partial class TypedefDecl : global::CppSharp.Parser.AST.TypedefNam
 
                 internal static new TypedefDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -7649,6 +7749,8 @@ public unsafe partial class TypeAlias : global::CppSharp.Parser.AST.TypedefNameD
 
                 internal static new TypeAlias __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeAlias(native.ToPointer(), skipVTables);
                 }
 
@@ -7780,6 +7882,8 @@ public unsafe partial class Friend : global::CppSharp.Parser.AST.Declaration, ID
 
                 internal static new Friend __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Friend(native.ToPointer(), skipVTables);
                 }
 
@@ -7909,6 +8013,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static StatementObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StatementObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8057,6 +8163,8 @@ public unsafe partial class ExpressionObsolete : global::CppSharp.Parser.AST.Sta
 
                 internal static new ExpressionObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExpressionObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8162,6 +8270,8 @@ public unsafe partial class BinaryOperatorObsolete : global::CppSharp.Parser.AST
 
                 internal static new BinaryOperatorObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryOperatorObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8324,6 +8434,8 @@ public unsafe partial class CallExprObsolete : global::CppSharp.Parser.AST.Expre
 
                 internal static new CallExprObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CallExprObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8406,8 +8518,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ExpressionObsolete GetArguments(uint i)
                 {
-                    var __ret = __Internal.GetArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -8429,8 +8541,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -8469,6 +8581,8 @@ public unsafe partial class CXXConstructExprObsolete : global::CppSharp.Parser.A
 
                 internal static new CXXConstructExprObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstructExprObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8551,8 +8665,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ExpressionObsolete GetArguments(uint i)
                 {
-                    var __ret = __Internal.GetArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -8574,8 +8688,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -8626,6 +8740,8 @@ public unsafe partial class Parameter : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Parameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Parameter(native.ToPointer(), skipVTables);
                 }
 
@@ -8867,6 +8983,8 @@ public unsafe partial class Function : global::CppSharp.Parser.AST.DeclarationCo
 
                 internal static new Function __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Function(native.ToPointer(), skipVTables);
                 }
 
@@ -8944,8 +9062,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Parameter GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9224,8 +9342,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9324,6 +9442,8 @@ public unsafe partial class Method : global::CppSharp.Parser.AST.Function, IDisp
 
                 internal static new Method __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Method(native.ToPointer(), skipVTables);
                 }
 
@@ -9401,8 +9521,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Method GetOverriddenMethods(uint i)
                 {
-                    var __ret = __Internal.GetOverriddenMethods(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetOverriddenMethods(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9556,8 +9676,8 @@ public uint OverriddenMethodsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetOverriddenMethodsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetOverriddenMethodsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9680,6 +9800,8 @@ public unsafe partial class Item : global::CppSharp.Parser.AST.Declaration, IDis
 
                     internal static new Item __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Item(native.ToPointer(), skipVTables);
                     }
 
@@ -9785,6 +9907,8 @@ public ulong Value
 
                 internal static new Enumeration __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Enumeration(native.ToPointer(), skipVTables);
                 }
 
@@ -9862,8 +9986,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Enumeration.Item GetItems(uint i)
                 {
-                    var __ret = __Internal.GetItems(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetItems(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9886,9 +10010,9 @@ public void ClearItems()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, Name);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindItemByName(__Instance, __arg0);
+                    var ___ret = __Internal.FindItemByName(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9937,8 +10061,8 @@ public uint ItemsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetItemsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetItemsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9987,6 +10111,8 @@ public unsafe partial class Variable : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Variable __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Variable(native.ToPointer(), skipVTables);
                 }
 
@@ -10156,6 +10282,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static BaseClassSpecifier __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BaseClassSpecifier(native.ToPointer(), skipVTables);
                 }
 
@@ -10329,6 +10457,8 @@ public unsafe partial class Field : global::CppSharp.Parser.AST.Declaration, IDi
 
                 internal static new Field __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Field(native.ToPointer(), skipVTables);
                 }
 
@@ -10500,6 +10630,8 @@ public unsafe partial class AccessSpecifierDecl : global::CppSharp.Parser.AST.De
 
                 internal static new AccessSpecifierDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AccessSpecifierDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -10612,6 +10744,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VTableComponent __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VTableComponent(native.ToPointer(), skipVTables);
                 }
 
@@ -10777,6 +10911,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VTableLayout __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VTableLayout(native.ToPointer(), skipVTables);
                 }
 
@@ -10859,9 +10995,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VTableComponent GetComponents(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.VTableComponent.__Internal();
-                    __Internal.GetComponents(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.VTableComponent.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.VTableComponent.__Internal();
+                    __Internal.GetComponents(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.VTableComponent.__CreateInstance(___ret);
                 }
 
                 public void AddComponents(global::CppSharp.Parser.AST.VTableComponent s)
@@ -10881,8 +11017,8 @@ public uint ComponentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetComponentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetComponentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -10927,6 +11063,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VFTableInfo __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VFTableInfo(native.ToPointer(), skipVTables);
                 }
 
@@ -11102,6 +11240,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static LayoutField __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LayoutField(native.ToPointer(), skipVTables);
                 }
 
@@ -11276,6 +11416,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static LayoutBase __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LayoutBase(native.ToPointer(), skipVTables);
                 }
 
@@ -11467,6 +11609,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static ClassLayout __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassLayout(native.ToPointer(), skipVTables);
                 }
 
@@ -11549,11 +11693,11 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VFTableInfo GetVFTables(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.VFTableInfo.__Internal();
-                    __Internal.GetVFTables(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.VFTableInfo.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.VFTableInfo.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.VFTableInfo.__Internal();
+                    __Internal.GetVFTables(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.VFTableInfo.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.VFTableInfo.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddVFTables(global::CppSharp.Parser.AST.VFTableInfo s)
@@ -11571,11 +11715,11 @@ public void ClearVFTables()
 
                 public global::CppSharp.Parser.AST.LayoutField GetFields(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.LayoutField.__Internal();
-                    __Internal.GetFields(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.LayoutField.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.LayoutField.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.LayoutField.__Internal();
+                    __Internal.GetFields(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.LayoutField.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.LayoutField.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddFields(global::CppSharp.Parser.AST.LayoutField s)
@@ -11593,11 +11737,11 @@ public void ClearFields()
 
                 public global::CppSharp.Parser.AST.LayoutBase GetBases(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.LayoutBase.__Internal();
-                    __Internal.GetBases(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.LayoutBase.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.LayoutBase.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.LayoutBase.__Internal();
+                    __Internal.GetBases(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.LayoutBase.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.LayoutBase.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddBases(global::CppSharp.Parser.AST.LayoutBase s)
@@ -11723,8 +11867,8 @@ public uint VFTablesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetVFTablesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetVFTablesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -11732,8 +11876,8 @@ public uint FieldsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFieldsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFieldsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -11741,8 +11885,8 @@ public uint BasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBasesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -11862,6 +12006,8 @@ public unsafe partial class Class : global::CppSharp.Parser.AST.DeclarationConte
 
                 internal static new Class __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Class(native.ToPointer(), skipVTables);
                 }
 
@@ -11939,8 +12085,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BaseClassSpecifier GetBases(uint i)
                 {
-                    var __ret = __Internal.GetBases(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.BaseClassSpecifier.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetBases(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.BaseClassSpecifier.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -11960,8 +12106,8 @@ public void ClearBases()
 
                 public global::CppSharp.Parser.AST.Field GetFields(uint i)
                 {
-                    var __ret = __Internal.GetFields(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Field.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFields(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Field.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -11981,8 +12127,8 @@ public void ClearFields()
 
                 public global::CppSharp.Parser.AST.Method GetMethods(uint i)
                 {
-                    var __ret = __Internal.GetMethods(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetMethods(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12002,8 +12148,8 @@ public void ClearMethods()
 
                 public global::CppSharp.Parser.AST.AccessSpecifierDecl GetSpecifiers(uint i)
                 {
-                    var __ret = __Internal.GetSpecifiers(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.AccessSpecifierDecl.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecifiers(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.AccessSpecifierDecl.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12182,8 +12328,8 @@ public uint BasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBasesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12191,8 +12337,8 @@ public uint FieldsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFieldsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFieldsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12200,8 +12346,8 @@ public uint MethodsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetMethodsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetMethodsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12209,8 +12355,8 @@ public uint SpecifiersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecifiersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecifiersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -12272,6 +12418,8 @@ public unsafe partial class Template : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Template __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Template(native.ToPointer(), skipVTables);
                 }
 
@@ -12358,8 +12506,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Declaration GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12400,8 +12548,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -12448,6 +12596,8 @@ public unsafe partial class TypeAliasTemplate : global::CppSharp.Parser.AST.Temp
 
                 internal static new TypeAliasTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeAliasTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -12567,6 +12717,8 @@ public unsafe partial class TemplateParameter : global::CppSharp.Parser.AST.Decl
 
                 internal static new TemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12732,6 +12884,8 @@ public unsafe partial class TemplateTemplateParameter : global::CppSharp.Parser.
 
                 internal static new TemplateTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12891,6 +13045,8 @@ public unsafe partial class TypeTemplateParameter : global::CppSharp.Parser.AST.
 
                 internal static new TypeTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12984,7 +13140,7 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
             public unsafe partial class NonTypeTemplateParameter : global::CppSharp.Parser.AST.TemplateParameter, IDisposable
             {
-                [StructLayout(LayoutKind.Sequential, Size = 144)]
+                [StructLayout(LayoutKind.Sequential, Size = 152)]
                 public new partial struct __Internal
                 {
                     internal global::CppSharp.Parser.AST.DeclarationKind kind;
@@ -13031,6 +13187,8 @@ public unsafe partial class NonTypeTemplateParameter : global::CppSharp.Parser.A
 
                 internal static new NonTypeTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NonTypeTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -13250,6 +13408,8 @@ public unsafe partial class ClassTemplate : global::CppSharp.Parser.AST.Template
 
                 internal static new ClassTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -13327,8 +13487,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ClassTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13351,9 +13511,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13362,9 +13522,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplatePartialSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplatePartialSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13372,8 +13532,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13460,6 +13620,8 @@ public unsafe partial class ClassTemplateSpecialization : global::CppSharp.Parse
 
                 internal static new ClassTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -13537,9 +13699,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -13586,8 +13748,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13662,6 +13824,8 @@ public unsafe partial class ClassTemplatePartialSpecialization : global::CppShar
 
                 internal static new ClassTemplatePartialSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplatePartialSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -13796,6 +13960,8 @@ public unsafe partial class FunctionTemplate : global::CppSharp.Parser.AST.Templ
 
                 internal static new FunctionTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -13873,8 +14039,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.FunctionTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13897,9 +14063,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13907,8 +14073,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13965,6 +14131,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static FunctionTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14047,9 +14215,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -14110,8 +14278,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14177,6 +14345,8 @@ public unsafe partial class VarTemplate : global::CppSharp.Parser.AST.Template,
 
                 internal static new VarTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -14254,8 +14424,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VarTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14278,9 +14448,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14289,9 +14459,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplatePartialSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplatePartialSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14299,8 +14469,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14364,6 +14534,8 @@ public unsafe partial class VarTemplateSpecialization : global::CppSharp.Parser.
 
                 internal static new VarTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14441,9 +14613,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -14490,8 +14662,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14543,6 +14715,8 @@ public unsafe partial class VarTemplatePartialSpecialization : global::CppSharp.
 
                 internal static new VarTemplatePartialSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplatePartialSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14659,6 +14833,8 @@ public unsafe partial class UnresolvedUsingTypename : global::CppSharp.Parser.AS
 
                 internal static new UnresolvedUsingTypename __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedUsingTypename(native.ToPointer(), skipVTables);
                 }
 
@@ -14787,6 +14963,8 @@ public unsafe partial class Namespace : global::CppSharp.Parser.AST.DeclarationC
 
                 internal static new Namespace __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Namespace(native.ToPointer(), skipVTables);
                 }
 
@@ -14912,6 +15090,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static PreprocessedEntity __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PreprocessedEntity(native.ToPointer(), skipVTables);
                 }
 
@@ -15052,6 +15232,8 @@ public unsafe partial class MacroDefinition : global::CppSharp.Parser.AST.Prepro
 
                 internal static new MacroDefinition __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MacroDefinition(native.ToPointer(), skipVTables);
                 }
 
@@ -15206,6 +15388,8 @@ public unsafe partial class MacroExpansion : global::CppSharp.Parser.AST.Preproc
 
                 internal static new MacroExpansion __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MacroExpansion(native.ToPointer(), skipVTables);
                 }
 
@@ -15391,6 +15575,8 @@ public unsafe partial class TranslationUnit : global::CppSharp.Parser.AST.Namesp
 
                 internal static new TranslationUnit __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TranslationUnit(native.ToPointer(), skipVTables);
                 }
 
@@ -15468,8 +15654,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.MacroDefinition GetMacros(uint i)
                 {
-                    var __ret = __Internal.GetMacros(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.MacroDefinition.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetMacros(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.MacroDefinition.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -15518,8 +15704,8 @@ public uint MacrosCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetMacrosCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetMacrosCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -15576,6 +15762,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static ASTContext __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ASTContext(native.ToPointer(), skipVTables);
                 }
 
@@ -15661,16 +15849,16 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, File);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindOrCreateModule(__Instance, __arg0);
+                    var ___ret = __Internal.FindOrCreateModule(__Instance, __arg0);
                     __basicString0.Dispose(disposing: true, callNativeDtor:false);
-                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
                 public global::CppSharp.Parser.AST.TranslationUnit GetTranslationUnits(uint i)
                 {
-                    var __ret = __Internal.GetTranslationUnits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTranslationUnits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -15692,8 +15880,8 @@ public uint TranslationUnitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTranslationUnitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTranslationUnitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -15877,6 +16065,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Stmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Stmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16057,6 +16247,8 @@ public unsafe partial class DeclStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new DeclStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16134,8 +16326,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Declaration Getdecls(uint i)
                 {
-                    var __ret = __Internal.Getdecls(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getdecls(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -16184,8 +16376,8 @@ public uint GetdeclsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetdeclsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetdeclsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -16211,6 +16403,8 @@ public unsafe partial class NullStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new NullStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NullStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16336,6 +16530,8 @@ public unsafe partial class CompoundStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new CompoundStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16413,8 +16609,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Stmt Getbody(uint i)
                 {
-                    var __ret = __Internal.Getbody(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Stmt.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getbody(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Stmt.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -16516,8 +16712,8 @@ public uint GetbodyCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetbodyCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetbodyCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -16547,6 +16743,8 @@ public unsafe partial class SwitchCase : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SwitchCase __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SwitchCase(native.ToPointer(), skipVTables);
                 }
 
@@ -16686,6 +16884,8 @@ public unsafe partial class CaseStmt : global::CppSharp.Parser.AST.SwitchCase, I
 
                 internal static new CaseStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CaseStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16834,6 +17034,8 @@ public unsafe partial class DefaultStmt : global::CppSharp.Parser.AST.SwitchCase
 
                 internal static new DefaultStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DefaultStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16928,6 +17130,8 @@ public unsafe partial class LabelStmt : global::CppSharp.Parser.AST.Stmt, IDispo
                 private bool __name_OwnsNativeMemory = false;
                 internal static new LabelStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LabelStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17061,6 +17265,8 @@ public unsafe partial class AttributedStmt : global::CppSharp.Parser.AST.Stmt, I
 
                 internal static new AttributedStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AttributedStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17177,6 +17383,8 @@ public unsafe partial class IfStmt : global::CppSharp.Parser.AST.Stmt, IDisposab
 
                 internal static new IfStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IfStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17423,6 +17631,8 @@ public unsafe partial class SwitchStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SwitchStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SwitchStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17613,6 +17823,8 @@ public unsafe partial class WhileStmt : global::CppSharp.Parser.AST.Stmt, IDispo
 
                 internal static new WhileStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new WhileStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17763,6 +17975,8 @@ public unsafe partial class DoStmt : global::CppSharp.Parser.AST.Stmt, IDisposab
 
                 internal static new DoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17915,6 +18129,8 @@ public unsafe partial class ForStmt : global::CppSharp.Parser.AST.Stmt, IDisposa
 
                 internal static new ForStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ForStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18103,6 +18319,8 @@ public unsafe partial class GotoStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new GotoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GotoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18209,6 +18427,8 @@ public unsafe partial class IndirectGotoStmt : global::CppSharp.Parser.AST.Stmt,
 
                 internal static new IndirectGotoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IndirectGotoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18327,6 +18547,8 @@ public unsafe partial class ContinueStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new ContinueStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ContinueStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18418,6 +18640,8 @@ public unsafe partial class BreakStmt : global::CppSharp.Parser.AST.Stmt, IDispo
 
                 internal static new BreakStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BreakStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18510,6 +18734,8 @@ public unsafe partial class ReturnStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new ReturnStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ReturnStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18653,6 +18879,8 @@ public unsafe partial class AsmStmt : global::CppSharp.Parser.AST.Stmt, IDisposa
 
                 internal static new AsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18739,8 +18967,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getinputs(uint i)
                 {
-                    var __ret = __Internal.Getinputs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getinputs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -18760,8 +18988,8 @@ public void Clearinputs()
 
                 public global::CppSharp.Parser.AST.Expr Getoutputs(uint i)
                 {
-                    var __ret = __Internal.Getoutputs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getoutputs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -18879,8 +19107,8 @@ public uint GetinputsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetinputsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetinputsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -18888,8 +19116,8 @@ public uint GetoutputsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetoutputsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetoutputsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -18971,6 +19199,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static AsmStringPiece __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new AsmStringPiece(native.ToPointer(), skipVTables);
                     }
 
@@ -19120,6 +19350,8 @@ public sbyte Modifier
 
                 internal static new GCCAsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GCCAsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19244,6 +19476,8 @@ public unsafe partial class MSAsmStmt : global::CppSharp.Parser.AST.AsmStmt, IDi
 
                 internal static new MSAsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSAsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19395,6 +19629,8 @@ public unsafe partial class SEHExceptStmt : global::CppSharp.Parser.AST.Stmt, ID
 
                 internal static new SEHExceptStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHExceptStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19515,6 +19751,8 @@ public unsafe partial class SEHFinallyStmt : global::CppSharp.Parser.AST.Stmt, I
 
                 internal static new SEHFinallyStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHFinallyStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19625,6 +19863,8 @@ public unsafe partial class SEHTryStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SEHTryStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHTryStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19785,6 +20025,8 @@ public unsafe partial class SEHLeaveStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new SEHLeaveStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHLeaveStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19938,6 +20180,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Capture __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Capture(native.ToPointer(), skipVTables);
                     }
 
@@ -20094,6 +20338,8 @@ public bool CapturesVariableArrayType
 
                 internal static new CapturedStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CapturedStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20171,8 +20417,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetcaptureInits(uint i)
                 {
-                    var __ret = __Internal.GetcaptureInits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetcaptureInits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -20221,8 +20467,8 @@ public uint GetcaptureInitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetcaptureInitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetcaptureInitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -20249,6 +20495,8 @@ public unsafe partial class CXXCatchStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new CXXCatchStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXCatchStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20371,6 +20619,8 @@ public unsafe partial class CXXTryStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new CXXTryStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTryStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20501,6 +20751,8 @@ public unsafe partial class CXXForRangeStmt : global::CppSharp.Parser.AST.Stmt,
 
                 internal static new CXXForRangeStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXForRangeStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20760,6 +21012,8 @@ public unsafe partial class MSDependentExistsStmt : global::CppSharp.Parser.AST.
 
                 internal static new MSDependentExistsStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSDependentExistsStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20950,6 +21204,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static CtorArgs __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new CtorArgs(native.ToPointer(), skipVTables);
                     }
 
@@ -21028,6 +21284,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new CoroutineBodyStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoroutineBodyStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -21297,6 +21555,8 @@ public enum SubStmt
 
                 internal static new CoreturnStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoreturnStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -21772,6 +22032,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Classification __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Classification(native.ToPointer(), skipVTables);
                     }
 
@@ -21954,6 +22216,8 @@ public bool IsModifiable
 
                 internal static new Expr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Expr(native.ToPointer(), skipVTables);
                 }
 
@@ -22249,6 +22513,8 @@ public unsafe partial class FullExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new FullExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FullExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22369,6 +22635,8 @@ public unsafe partial class ConstantExpr : global::CppSharp.Parser.AST.FullExpr,
 
                 internal static new ConstantExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConstantExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22463,6 +22731,8 @@ public unsafe partial class OpaqueValueExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new OpaqueValueExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OpaqueValueExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22606,6 +22876,8 @@ public unsafe partial class DeclRefExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new DeclRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22856,6 +23128,8 @@ public unsafe partial class IntegerLiteral : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new IntegerLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IntegerLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -22975,6 +23249,8 @@ public unsafe partial class FixedPointLiteral : global::CppSharp.Parser.AST.Expr
 
                 internal static new FixedPointLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FixedPointLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23104,6 +23380,8 @@ public enum CharacterKind
 
                 internal static new CharacterLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CharacterLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23237,6 +23515,8 @@ public unsafe partial class FloatingLiteral : global::CppSharp.Parser.AST.Expr,
 
                 internal static new FloatingLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FloatingLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23368,6 +23648,8 @@ public unsafe partial class ImaginaryLiteral : global::CppSharp.Parser.AST.Expr,
 
                 internal static new ImaginaryLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImaginaryLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23500,6 +23782,8 @@ public enum StringKind
 
                 internal static new StringLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StringLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23820,6 +24104,8 @@ public enum IdentKind
 
                 internal static new PredefinedExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PredefinedExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -23940,6 +24226,8 @@ public unsafe partial class ParenExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new ParenExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParenExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24082,6 +24370,8 @@ public unsafe partial class UnaryOperator : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new UnaryOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -24321,6 +24611,8 @@ public unsafe partial class OffsetOfExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new OffsetOfExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OffsetOfExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24471,6 +24763,8 @@ public unsafe partial class UnaryExprOrTypeTraitExpr : global::CppSharp.Parser.A
 
                 internal static new UnaryExprOrTypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryExprOrTypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24663,6 +24957,8 @@ public unsafe partial class ArraySubscriptExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArraySubscriptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArraySubscriptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24850,6 +25146,8 @@ public unsafe partial class CallExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new CallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24936,8 +25234,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -25071,8 +25369,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -25123,6 +25421,8 @@ public unsafe partial class MemberExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new MemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25387,6 +25687,8 @@ public unsafe partial class CompoundLiteralExpr : global::CppSharp.Parser.AST.Ex
 
                 internal static new CompoundLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25529,6 +25831,8 @@ public unsafe partial class CastExpr : global::CppSharp.Parser.AST.Expr, IDispos
                 private bool __castKindName_OwnsNativeMemory = false;
                 internal static new CastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25755,6 +26059,8 @@ public enum OnStack_t
 
                 internal static new ImplicitCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImplicitCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25870,6 +26176,8 @@ public unsafe partial class ExplicitCastExpr : global::CppSharp.Parser.AST.CastE
 
                 internal static new ExplicitCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExplicitCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -26000,6 +26308,8 @@ public unsafe partial class CStyleCastExpr : global::CppSharp.Parser.AST.Explici
 
                 internal static new CStyleCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CStyleCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -26142,6 +26452,8 @@ public unsafe partial class BinaryOperator : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new BinaryOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26539,6 +26851,8 @@ public unsafe partial class CompoundAssignOperator : global::CppSharp.Parser.AST
 
                 internal static new CompoundAssignOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundAssignOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26686,6 +27000,8 @@ public unsafe partial class AbstractConditionalOperator : global::CppSharp.Parse
 
                 internal static new AbstractConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AbstractConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26866,6 +27182,8 @@ public unsafe partial class ConditionalOperator : global::CppSharp.Parser.AST.Ab
 
                 internal static new ConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26992,6 +27310,8 @@ public unsafe partial class BinaryConditionalOperator : global::CppSharp.Parser.
 
                 internal static new BinaryConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -27113,6 +27433,8 @@ public unsafe partial class AddrLabelExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new AddrLabelExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AddrLabelExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27233,6 +27555,8 @@ public unsafe partial class StmtExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new StmtExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StmtExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27367,6 +27691,8 @@ public unsafe partial class ShuffleVectorExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ShuffleVectorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ShuffleVectorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27500,6 +27826,8 @@ public unsafe partial class ConvertVectorExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ConvertVectorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConvertVectorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27639,6 +27967,8 @@ public unsafe partial class ChooseExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new ChooseExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ChooseExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27839,6 +28169,8 @@ public unsafe partial class GNUNullExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new GNUNullExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GNUNullExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27947,6 +28279,8 @@ public unsafe partial class VAArgExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new VAArgExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VAArgExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -28103,6 +28437,8 @@ public unsafe partial class InitListExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new InitListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InitListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -28401,6 +28737,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Designator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Designator(native.ToPointer(), skipVTables);
                     }
 
@@ -28655,6 +28993,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static FieldDesignator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new FieldDesignator(native.ToPointer(), skipVTables);
                     }
 
@@ -28763,6 +29103,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static ArrayOrRangeDesignator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new ArrayOrRangeDesignator(native.ToPointer(), skipVTables);
                     }
 
@@ -28841,6 +29183,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new DesignatedInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DesignatedInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29013,6 +29357,8 @@ public unsafe partial class NoInitExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new NoInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NoInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29106,6 +29452,8 @@ public unsafe partial class DesignatedInitUpdateExpr : global::CppSharp.Parser.A
 
                 internal static new DesignatedInitUpdateExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DesignatedInitUpdateExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29227,6 +29575,8 @@ public unsafe partial class ArrayInitLoopExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ArrayInitLoopExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayInitLoopExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29346,6 +29696,8 @@ public unsafe partial class ArrayInitIndexExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArrayInitIndexExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayInitIndexExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29437,6 +29789,8 @@ public unsafe partial class ImplicitValueInitExpr : global::CppSharp.Parser.AST.
 
                 internal static new ImplicitValueInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImplicitValueInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29531,6 +29885,8 @@ public unsafe partial class ParenListExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new ParenListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParenListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29669,6 +30025,8 @@ public unsafe partial class GenericSelectionExpr : global::CppSharp.Parser.AST.E
 
                 internal static new GenericSelectionExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GenericSelectionExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29871,6 +30229,8 @@ public unsafe partial class ExtVectorElementExpr : global::CppSharp.Parser.AST.E
 
                 internal static new ExtVectorElementExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExtVectorElementExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30030,6 +30390,8 @@ public unsafe partial class BlockExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new BlockExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30151,6 +30513,8 @@ public unsafe partial class AsTypeExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new AsTypeExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AsTypeExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30286,6 +30650,8 @@ public unsafe partial class PseudoObjectExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new PseudoObjectExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PseudoObjectExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30496,6 +30862,8 @@ public enum AtomicOp
 
                 internal static new AtomicExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AtomicExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30791,6 +31159,8 @@ public unsafe partial class TypoExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new TypoExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypoExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30898,6 +31268,8 @@ public unsafe partial class CXXOperatorCallExpr : global::CppSharp.Parser.AST.Ca
 
                 internal static new CXXOperatorCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXOperatorCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31073,6 +31445,8 @@ public unsafe partial class CXXMemberCallExpr : global::CppSharp.Parser.AST.Call
 
                 internal static new CXXMemberCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXMemberCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31223,6 +31597,8 @@ public unsafe partial class CUDAKernelCallExpr : global::CppSharp.Parser.AST.Cal
 
                 internal static new CUDAKernelCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CUDAKernelCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31362,6 +31738,8 @@ public unsafe partial class CXXNamedCastExpr : global::CppSharp.Parser.AST.Expli
                 private bool __castName_OwnsNativeMemory = false;
                 internal static new CXXNamedCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNamedCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31547,6 +31925,8 @@ public unsafe partial class CXXStaticCastExpr : global::CppSharp.Parser.AST.CXXN
 
                 internal static new CXXStaticCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXStaticCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31651,6 +32031,8 @@ public unsafe partial class CXXDynamicCastExpr : global::CppSharp.Parser.AST.CXX
 
                 internal static new CXXDynamicCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDynamicCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31767,6 +32149,8 @@ public unsafe partial class CXXReinterpretCastExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXReinterpretCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXReinterpretCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31870,6 +32254,8 @@ public unsafe partial class CXXConstCastExpr : global::CppSharp.Parser.AST.CXXNa
 
                 internal static new CXXConstCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31986,6 +32372,8 @@ public enum LiteralOperatorKind
 
                 internal static new UserDefinedLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UserDefinedLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -32137,6 +32525,8 @@ public unsafe partial class CXXBoolLiteralExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new CXXBoolLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXBoolLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32255,6 +32645,8 @@ public unsafe partial class CXXNullPtrLiteralExpr : global::CppSharp.Parser.AST.
 
                 internal static new CXXNullPtrLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNullPtrLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32360,6 +32752,8 @@ public unsafe partial class CXXStdInitializerListExpr : global::CppSharp.Parser.
 
                 internal static new CXXStdInitializerListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXStdInitializerListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32468,6 +32862,8 @@ public unsafe partial class CXXTypeidExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXTypeidExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTypeidExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32603,6 +32999,8 @@ public unsafe partial class MSPropertyRefExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new MSPropertyRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSPropertyRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32750,6 +33148,8 @@ public unsafe partial class MSPropertySubscriptExpr : global::CppSharp.Parser.AS
 
                 internal static new MSPropertySubscriptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSPropertySubscriptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32888,6 +33288,8 @@ public unsafe partial class CXXUuidofExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXUuidofExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXUuidofExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33040,6 +33442,8 @@ public unsafe partial class CXXThisExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new CXXThisExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXThisExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33160,6 +33564,8 @@ public unsafe partial class CXXThrowExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new CXXThrowExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXThrowExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33293,6 +33699,8 @@ public unsafe partial class CXXDefaultArgExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new CXXDefaultArgExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDefaultArgExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33413,6 +33821,8 @@ public unsafe partial class CXXDefaultInitExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new CXXDefaultInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDefaultInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33533,6 +33943,8 @@ public unsafe partial class CXXBindTemporaryExpr : global::CppSharp.Parser.AST.E
 
                 internal static new CXXBindTemporaryExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXBindTemporaryExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33673,6 +34085,8 @@ public enum ConstructionKind
 
                 internal static new CXXConstructExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstructExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33759,8 +34173,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -33893,8 +34307,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -33935,6 +34349,8 @@ public unsafe partial class CXXInheritedCtorInitExpr : global::CppSharp.Parser.A
 
                 internal static new CXXInheritedCtorInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXInheritedCtorInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34076,6 +34492,8 @@ public unsafe partial class CXXFunctionalCastExpr : global::CppSharp.Parser.AST.
 
                 internal static new CXXFunctionalCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXFunctionalCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34218,6 +34636,8 @@ public unsafe partial class CXXTemporaryObjectExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXTemporaryObjectExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTemporaryObjectExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34352,6 +34772,8 @@ public unsafe partial class LambdaExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new LambdaExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LambdaExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34429,8 +34851,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetcaptureInits(uint i)
                 {
-                    var __ret = __Internal.GetcaptureInits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetcaptureInits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -34573,8 +34995,8 @@ public uint GetcaptureInitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetcaptureInitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetcaptureInitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -34613,6 +35035,8 @@ public unsafe partial class CXXScalarValueInitExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXScalarValueInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXScalarValueInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34754,6 +35178,8 @@ public enum InitializationStyle
 
                 internal static new CXXNewExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNewExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34831,8 +35257,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetplacementArguments(uint i)
                 {
-                    var __ret = __Internal.GetplacementArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetplacementArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -35047,8 +35473,8 @@ public uint GetplacementArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetplacementArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetplacementArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -35092,6 +35518,8 @@ public unsafe partial class CXXDeleteExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXDeleteExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDeleteExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35273,6 +35701,8 @@ public unsafe partial class CXXPseudoDestructorExpr : global::CppSharp.Parser.AS
 
                 internal static new CXXPseudoDestructorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXPseudoDestructorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35473,6 +35903,8 @@ public unsafe partial class TypeTraitExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new TypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35593,6 +36025,8 @@ public unsafe partial class ArrayTypeTraitExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArrayTypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayTypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35728,6 +36162,8 @@ public unsafe partial class ExpressionTraitExpr : global::CppSharp.Parser.AST.Ex
 
                 internal static new ExpressionTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExpressionTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35887,6 +36323,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static FindResult __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new FindResult(native.ToPointer(), skipVTables);
                     }
 
@@ -35965,6 +36403,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new OverloadExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OverloadExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36184,6 +36624,8 @@ public unsafe partial class UnresolvedLookupExpr : global::CppSharp.Parser.AST.O
 
                 internal static new UnresolvedLookupExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedLookupExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36308,6 +36750,8 @@ public unsafe partial class DependentScopeDeclRefExpr : global::CppSharp.Parser.
 
                 internal static new DependentScopeDeclRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentScopeDeclRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36493,6 +36937,8 @@ public unsafe partial class ExprWithCleanups : global::CppSharp.Parser.AST.FullE
 
                 internal static new ExprWithCleanups __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExprWithCleanups(native.ToPointer(), skipVTables);
                 }
 
@@ -36631,6 +37077,8 @@ public unsafe partial class CXXUnresolvedConstructExpr : global::CppSharp.Parser
 
                 internal static new CXXUnresolvedConstructExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXUnresolvedConstructExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36708,8 +37156,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -36798,8 +37246,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -36850,6 +37298,8 @@ public unsafe partial class CXXDependentScopeMemberExpr : global::CppSharp.Parse
 
                 internal static new CXXDependentScopeMemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDependentScopeMemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37129,6 +37579,8 @@ public unsafe partial class UnresolvedMemberExpr : global::CppSharp.Parser.AST.O
 
                 internal static new UnresolvedMemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedMemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37316,6 +37768,8 @@ public unsafe partial class CXXNoexceptExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new CXXNoexceptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNoexceptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37436,6 +37890,8 @@ public unsafe partial class PackExpansionExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new PackExpansionExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PackExpansionExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37560,6 +38016,8 @@ public unsafe partial class SizeOfPackExpr : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new SizeOfPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SizeOfPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37732,6 +38190,8 @@ public unsafe partial class SubstNonTypeTemplateParmExpr : global::CppSharp.Pars
 
                 internal static new SubstNonTypeTemplateParmExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SubstNonTypeTemplateParmExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37852,6 +38312,8 @@ public unsafe partial class SubstNonTypeTemplateParmPackExpr : global::CppSharp.
 
                 internal static new SubstNonTypeTemplateParmPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SubstNonTypeTemplateParmPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37973,6 +38435,8 @@ public unsafe partial class FunctionParmPackExpr : global::CppSharp.Parser.AST.E
 
                 internal static new FunctionParmPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionParmPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38124,6 +38588,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static ExtraState __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new ExtraState(native.ToPointer(), skipVTables);
                     }
 
@@ -38202,6 +38668,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new MaterializeTemporaryExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MaterializeTemporaryExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38355,6 +38823,8 @@ public unsafe partial class CXXFoldExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new CXXFoldExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXFoldExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38572,6 +39042,8 @@ public enum SubExpr
 
                 internal static new CoroutineSuspendExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoroutineSuspendExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38768,6 +39240,8 @@ public unsafe partial class CoawaitExpr : global::CppSharp.Parser.AST.CoroutineS
 
                 internal static new CoawaitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoawaitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38889,6 +39363,8 @@ public unsafe partial class DependentCoawaitExpr : global::CppSharp.Parser.AST.E
 
                 internal static new DependentCoawaitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentCoawaitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -39028,6 +39504,8 @@ public unsafe partial class CoyieldExpr : global::CppSharp.Parser.AST.CoroutineS
 
                 internal static new CoyieldExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoyieldExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -39199,6 +39677,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserTargetInfo __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserTargetInfo(native.ToPointer(), skipVTables);
             }
 
@@ -39871,6 +40351,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static Parser __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new Parser(native.ToPointer(), skipVTables);
             }
 
@@ -40081,6 +40563,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static CppParserOptions __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new CppParserOptions(native.ToPointer(), skipVTables);
             }
 
@@ -40163,8 +40647,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public string GetArguments(uint i)
             {
-                var __ret = __Internal.GetArguments(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetArguments(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddArguments(string s)
@@ -40179,8 +40663,8 @@ public void ClearArguments()
 
             public string GetCompilationOptions(uint i)
             {
-                var __ret = __Internal.GetCompilationOptions(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetCompilationOptions(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddCompilationOptions(string s)
@@ -40195,8 +40679,8 @@ public void ClearCompilationOptions()
 
             public string GetSourceFiles(uint i)
             {
-                var __ret = __Internal.GetSourceFiles(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSourceFiles(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSourceFiles(string s)
@@ -40211,8 +40695,8 @@ public void ClearSourceFiles()
 
             public string GetIncludeDirs(uint i)
             {
-                var __ret = __Internal.GetIncludeDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetIncludeDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddIncludeDirs(string s)
@@ -40227,8 +40711,8 @@ public void ClearIncludeDirs()
 
             public string GetSystemIncludeDirs(uint i)
             {
-                var __ret = __Internal.GetSystemIncludeDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSystemIncludeDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSystemIncludeDirs(string s)
@@ -40243,8 +40727,8 @@ public void ClearSystemIncludeDirs()
 
             public string GetDefines(uint i)
             {
-                var __ret = __Internal.GetDefines(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetDefines(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddDefines(string s)
@@ -40259,8 +40743,8 @@ public void ClearDefines()
 
             public string GetUndefines(uint i)
             {
-                var __ret = __Internal.GetUndefines(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetUndefines(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddUndefines(string s)
@@ -40275,8 +40759,8 @@ public void ClearUndefines()
 
             public string GetSupportedStdTypes(uint i)
             {
-                var __ret = __Internal.GetSupportedStdTypes(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSupportedStdTypes(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSupportedStdTypes(string s)
@@ -40291,8 +40775,8 @@ public void ClearSupportedStdTypes()
 
             public string GetSupportedFunctionTemplates(uint i)
             {
-                var __ret = __Internal.GetSupportedFunctionTemplates(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSupportedFunctionTemplates(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSupportedFunctionTemplates(string s)
@@ -40454,9 +40938,9 @@ public string ClangVersion
             {
                 get
                 {
-                    var __ret = new global::Std.BasicString.__Internalc__N_std_N___1_S_basic_string__C___N_std_N___1_S_char_traits__C___N_std_N___1_S_allocator__C();
-                    __Internal.GetClangVersion(new IntPtr(&__ret), __Instance);
-                    var __basicStringRet0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__CreateInstance(new __IntPtr(&__ret));
+                    var ___ret = new global::Std.BasicString.__Internalc__N_std_N___1_S_basic_string__C___N_std_N___1_S_char_traits__C___N_std_N___1_S_allocator__C();
+                    __Internal.GetClangVersion(new IntPtr(&___ret), __Instance);
+                    var __basicStringRet0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__CreateInstance(new __IntPtr(&___ret));
                     var __retString0 = global::Std.BasicStringExtensions.Data(__basicStringRet0);
                     __basicStringRet0.Dispose();
                     return __retString0;
@@ -40467,8 +40951,8 @@ public uint ArgumentsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetArgumentsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetArgumentsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40476,8 +40960,8 @@ public uint CompilationOptionsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetCompilationOptionsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetCompilationOptionsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40485,8 +40969,8 @@ public uint SourceFilesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSourceFilesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSourceFilesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40494,8 +40978,8 @@ public uint IncludeDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetIncludeDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetIncludeDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40503,8 +40987,8 @@ public uint SystemIncludeDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSystemIncludeDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSystemIncludeDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40512,8 +40996,8 @@ public uint DefinesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetDefinesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetDefinesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40521,8 +41005,8 @@ public uint UndefinesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetUndefinesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetUndefinesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40530,8 +41014,8 @@ public uint SupportedStdTypesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSupportedStdTypesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSupportedStdTypesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40539,8 +41023,8 @@ public uint SupportedFunctionTemplatesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSupportedFunctionTemplatesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSupportedFunctionTemplatesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -40620,6 +41104,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static CppLinkerOptions __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new CppLinkerOptions(native.ToPointer(), skipVTables);
             }
 
@@ -40702,8 +41188,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public string GetArguments(uint i)
             {
-                var __ret = __Internal.GetArguments(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetArguments(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddArguments(string s)
@@ -40718,8 +41204,8 @@ public void ClearArguments()
 
             public string GetLibraryDirs(uint i)
             {
-                var __ret = __Internal.GetLibraryDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetLibraryDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddLibraryDirs(string s)
@@ -40734,8 +41220,8 @@ public void ClearLibraryDirs()
 
             public string GetLibraries(uint i)
             {
-                var __ret = __Internal.GetLibraries(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetLibraries(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddLibraries(string s)
@@ -40752,8 +41238,8 @@ public uint ArgumentsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetArgumentsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetArgumentsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40761,8 +41247,8 @@ public uint LibraryDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibraryDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibraryDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40770,8 +41256,8 @@ public uint LibrariesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibrariesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibrariesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -40817,6 +41303,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserDiagnostic __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserDiagnostic(native.ToPointer(), skipVTables);
             }
 
@@ -41029,6 +41517,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserResult __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserResult(native.ToPointer(), skipVTables);
             }
 
@@ -41111,11 +41601,11 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public global::CppSharp.Parser.ParserDiagnostic GetDiagnostics(uint i)
             {
-                var __ret = new global::CppSharp.Parser.ParserDiagnostic.__Internal();
-                __Internal.GetDiagnostics(new IntPtr(&__ret), __Instance, i);
-                var ____ret = global::CppSharp.Parser.ParserDiagnostic.__CreateInstance(__ret);
-                global::CppSharp.Parser.ParserDiagnostic.__Internal.dtor(new __IntPtr(&__ret));
-                return ____ret;
+                var ___ret = new global::CppSharp.Parser.ParserDiagnostic.__Internal();
+                __Internal.GetDiagnostics(new IntPtr(&___ret), __Instance, i);
+                var _____ret = global::CppSharp.Parser.ParserDiagnostic.__CreateInstance(___ret);
+                global::CppSharp.Parser.ParserDiagnostic.__Internal.dtor(new __IntPtr(&___ret));
+                return _____ret;
             }
 
             public void AddDiagnostics(global::CppSharp.Parser.ParserDiagnostic s)
@@ -41133,8 +41623,8 @@ public void ClearDiagnostics()
 
             public global::CppSharp.Parser.AST.NativeLibrary GetLibraries(uint i)
             {
-                var __ret = __Internal.GetLibraries(__Instance, i);
-                var __result0 = global::CppSharp.Parser.AST.NativeLibrary.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.GetLibraries(__Instance, i);
+                var __result0 = global::CppSharp.Parser.AST.NativeLibrary.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41183,8 +41673,8 @@ public uint DiagnosticsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetDiagnosticsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetDiagnosticsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -41192,8 +41682,8 @@ public uint LibrariesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibrariesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibrariesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -41242,6 +41732,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ClangParser __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ClangParser(native.ToPointer(), skipVTables);
             }
 
@@ -41319,16 +41811,16 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
             public static global::CppSharp.Parser.ParserResult ParseHeader(global::CppSharp.Parser.CppParserOptions Opts)
             {
                 var __arg0 = Opts is null ? __IntPtr.Zero : Opts.__Instance;
-                var __ret = __Internal.ParseHeader(__arg0);
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.ParseHeader(__arg0);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
             public static global::CppSharp.Parser.ParserResult ParseLibrary(global::CppSharp.Parser.CppLinkerOptions Opts)
             {
                 var __arg0 = Opts is null ? __IntPtr.Zero : Opts.__Instance;
-                var __ret = __Internal.ParseLibrary(__arg0);
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.ParseLibrary(__arg0);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41339,9 +41831,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString2 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString2, File);
                 var __arg2 = __basicString2.__Instance;
-                var __ret = __Internal.Build(__arg0, __arg1, __arg2, Last);
+                var ___ret = __Internal.Build(__arg0, __arg1, __arg2, Last);
                 __basicString2.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41351,9 +41843,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString1 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString1, File);
                 var __arg1 = __basicString1.__Instance;
-                var __ret = __Internal.Compile(__arg0, __arg1);
+                var ___ret = __Internal.Compile(__arg0, __arg1);
                 __basicString1.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41364,9 +41856,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString2 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString2, File);
                 var __arg2 = __basicString2.__Instance;
-                var __ret = __Internal.Link(__arg0, __arg1, __arg2, Last);
+                var ___ret = __Internal.Link(__arg0, __arg1, __arg2, Last);
                 __basicString2.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
         }
diff --git a/src/CppParser/Bindings/CSharp/i686-apple-darwin12.4.0/Std.cs b/src/CppParser/Bindings/CSharp/i686-apple-darwin12.4.0/Std.cs
index a2bb601c5..c7e2920ad 100644
--- a/src/CppParser/Bindings/CSharp/i686-apple-darwin12.4.0/Std.cs
+++ b/src/CppParser/Bindings/CSharp/i686-apple-darwin12.4.0/Std.cs
@@ -15,6 +15,8 @@
 
 [assembly:InternalsVisibleTo("CppSharp.CppParser")]
 
+#pragma warning disable CS0109 // Member does not hide an inherited member; new keyword is not required
+
 namespace Std
 {
 }
@@ -86,6 +88,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static Allocator<_Tp> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new Allocator<_Tp>(native.ToPointer(), skipVTables);
         }
 
@@ -231,6 +235,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static CharTraits<_CharT> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new CharTraits<_CharT>(native.ToPointer(), skipVTables);
         }
 
@@ -418,6 +424,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static BasicString<_CharT, _Traits, _Allocator> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new BasicString<_CharT, _Traits, _Allocator>(native.ToPointer(), skipVTables);
         }
 
@@ -520,16 +528,16 @@ public partial struct __Internal
         public static global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> Assign(this global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> @this, string __s)
         {
             var __arg0 = @this is null ? __IntPtr.Zero : @this.__Instance;
-            var __ret = __Internal.Assign(__arg0, __s);
-            var __result0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__GetOrCreateInstance(__ret, false);
+            var ___ret = __Internal.Assign(__arg0, __s);
+            var __result0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__GetOrCreateInstance(___ret, false);
             return __result0;
         }
 
         public static string Data(this global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> @this)
         {
             var __arg0 = @this is null ? __IntPtr.Zero : @this.__Instance;
-            var __ret = __Internal.Data(__arg0);
-            return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+            var ___ret = __Internal.Data(__arg0);
+            return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
         }
     }
 }
diff --git a/src/CppParser/Bindings/CSharp/i686-pc-win32-msvc/CppSharp.CppParser-symbols.cpp b/src/CppParser/Bindings/CSharp/i686-pc-win32-msvc/CppSharp.CppParser-symbols.cpp
index 04a272aee..7f36c1299 100644
--- a/src/CppParser/Bindings/CSharp/i686-pc-win32-msvc/CppSharp.CppParser-symbols.cpp
+++ b/src/CppParser/Bindings/CSharp/i686-pc-win32-msvc/CppSharp.CppParser-symbols.cpp
@@ -35,7 +35,6 @@ class CppSharp::CppParser::AST::InlineCommandComment& (CppSharp::CppParser::AST:
 extern "C" __declspec(dllexport) void c__N_CppSharp_N_CppParser_N_AST_S_InlineCommandComment__InlineCommandComment(CppSharp::CppParser::AST::InlineCommandComment*__instance) { __instance->~InlineCommandComment(); }
 class CppSharp::CppParser::AST::HTMLTagComment& (CppSharp::CppParser::AST::HTMLTagComment::*_15)(class CppSharp::CppParser::AST::HTMLTagComment&&) = &CppSharp::CppParser::AST::HTMLTagComment::operator=;
 class CppSharp::CppParser::AST::HTMLStartTagComment::Attribute& (CppSharp::CppParser::AST::HTMLStartTagComment::Attribute::*_16)(const class CppSharp::CppParser::AST::HTMLStartTagComment::Attribute&) = &CppSharp::CppParser::AST::HTMLStartTagComment::Attribute::operator=;
-extern "C" __declspec(dllexport) void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment_S_Attribute__Attribute(CppSharp::CppParser::AST::HTMLStartTagComment::Attribute*__instance) { __instance->~Attribute(); }
 extern "C" __declspec(dllexport) void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment_HTMLStartTagComment___1__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment(void* __instance, const CppSharp::CppParser::AST::HTMLStartTagComment& _0) { ::new (__instance) CppSharp::CppParser::AST::HTMLStartTagComment(_0); }
 class CppSharp::CppParser::AST::HTMLStartTagComment& (CppSharp::CppParser::AST::HTMLStartTagComment::*_17)(class CppSharp::CppParser::AST::HTMLStartTagComment&&) = &CppSharp::CppParser::AST::HTMLStartTagComment::operator=;
 extern "C" __declspec(dllexport) void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment__HTMLStartTagComment(CppSharp::CppParser::AST::HTMLStartTagComment*__instance) { __instance->~HTMLStartTagComment(); }
diff --git a/src/CppParser/Bindings/CSharp/i686-pc-win32-msvc/CppSharp.CppParser.cs b/src/CppParser/Bindings/CSharp/i686-pc-win32-msvc/CppSharp.CppParser.cs
index de89c3f76..b83d0f97e 100644
--- a/src/CppParser/Bindings/CSharp/i686-pc-win32-msvc/CppSharp.CppParser.cs
+++ b/src/CppParser/Bindings/CSharp/i686-pc-win32-msvc/CppSharp.CppParser.cs
@@ -13,6 +13,8 @@
 
 [assembly:InternalsVisibleTo("CppSharp.Parser")]
 
+#pragma warning disable CS0109 // Member does not hide an inherited member; new keyword is not required
+
 namespace CppSharp
 {
     namespace Parser
@@ -121,6 +123,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static NativeLibrary __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NativeLibrary(native.ToPointer(), skipVTables);
                 }
 
@@ -203,8 +207,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public string GetSymbols(uint i)
                 {
-                    var __ret = __Internal.GetSymbols(__Instance, i);
-                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                    var ___ret = __Internal.GetSymbols(__Instance, i);
+                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
                 }
 
                 public void AddSymbols(string s)
@@ -219,8 +223,8 @@ public void ClearSymbols()
 
                 public string GetDependencies(uint i)
                 {
-                    var __ret = __Internal.GetDependencies(__Instance, i);
-                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                    var ___ret = __Internal.GetDependencies(__Instance, i);
+                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
                 }
 
                 public void AddDependencies(string s)
@@ -264,8 +268,8 @@ public uint SymbolsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSymbolsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSymbolsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -273,8 +277,8 @@ public uint DependenciesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetDependenciesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetDependenciesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -313,6 +317,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Comment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Comment(native.ToPointer(), skipVTables);
                 }
 
@@ -426,6 +432,8 @@ public unsafe partial class BlockContentComment : global::CppSharp.Parser.AST.Co
 
                 internal static new BlockContentComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockContentComment(native.ToPointer(), skipVTables);
                 }
 
@@ -530,6 +538,8 @@ public unsafe partial class FullComment : global::CppSharp.Parser.AST.Comment, I
 
                 internal static new FullComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FullComment(native.ToPointer(), skipVTables);
                 }
 
@@ -607,8 +617,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BlockContentComment GetBlocks(uint i)
                 {
-                    var __ret = __Internal.GetBlocks(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.BlockContentComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetBlocks(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.BlockContentComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -630,8 +640,8 @@ public uint BlocksCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBlocksCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBlocksCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -656,6 +666,8 @@ public unsafe partial class InlineContentComment : global::CppSharp.Parser.AST.C
 
                 internal static new InlineContentComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InlineContentComment(native.ToPointer(), skipVTables);
                 }
 
@@ -774,6 +786,8 @@ public unsafe partial class ParagraphComment : global::CppSharp.Parser.AST.Block
 
                 internal static new ParagraphComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParagraphComment(native.ToPointer(), skipVTables);
                 }
 
@@ -851,8 +865,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.InlineContentComment GetContent(uint i)
                 {
-                    var __ret = __Internal.GetContent(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.InlineContentComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetContent(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.InlineContentComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -887,8 +901,8 @@ public uint ContentCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetContentCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetContentCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -965,6 +979,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Argument __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Argument(native.ToPointer(), skipVTables);
                     }
 
@@ -1062,6 +1078,8 @@ public string Text
 
                 internal static new BlockCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1148,11 +1166,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BlockCommandComment.Argument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    var ____ret = global::CppSharp.Parser.AST.BlockCommandComment.Argument.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    var _____ret = global::CppSharp.Parser.AST.BlockCommandComment.Argument.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.BlockCommandComment.Argument s)
@@ -1204,8 +1222,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1241,6 +1259,8 @@ public enum PassDirection
 
                 internal static new ParamCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParamCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1378,6 +1398,8 @@ public unsafe partial class TParamCommandComment : global::CppSharp.Parser.AST.B
 
                 internal static new TParamCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TParamCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1455,8 +1477,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public uint GetPosition(uint i)
                 {
-                    var __ret = __Internal.GetPosition(__Instance, i);
-                    return __ret;
+                    var ___ret = __Internal.GetPosition(__Instance, i);
+                    return ___ret;
                 }
 
                 public void AddPosition(ref uint s)
@@ -1477,8 +1499,8 @@ public uint PositionCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetPositionCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetPositionCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1503,6 +1525,8 @@ public unsafe partial class VerbatimBlockLineComment : global::CppSharp.Parser.A
 
                 internal static new VerbatimBlockLineComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimBlockLineComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1628,6 +1652,8 @@ public unsafe partial class VerbatimBlockComment : global::CppSharp.Parser.AST.B
 
                 internal static new VerbatimBlockComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimBlockComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1705,8 +1731,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VerbatimBlockLineComment GetLines(uint i)
                 {
-                    var __ret = __Internal.GetLines(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.VerbatimBlockLineComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetLines(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.VerbatimBlockLineComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -1728,8 +1754,8 @@ public uint LinesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetLinesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetLinesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1757,6 +1783,8 @@ public unsafe partial class VerbatimLineComment : global::CppSharp.Parser.AST.Bl
 
                 internal static new VerbatimLineComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimLineComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1926,6 +1954,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Argument __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Argument(native.ToPointer(), skipVTables);
                     }
 
@@ -2023,6 +2053,8 @@ public string Text
 
                 internal static new InlineCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InlineCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2100,11 +2132,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.InlineCommandComment.Argument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    var ____ret = global::CppSharp.Parser.AST.InlineCommandComment.Argument.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    var _____ret = global::CppSharp.Parser.AST.InlineCommandComment.Argument.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.InlineCommandComment.Argument s)
@@ -2150,8 +2182,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -2176,6 +2208,8 @@ public unsafe partial class HTMLTagComment : global::CppSharp.Parser.AST.InlineC
 
                 internal static new HTMLTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2318,6 +2352,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Attribute __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Attribute(native.ToPointer(), skipVTables);
                     }
 
@@ -2429,6 +2465,8 @@ public string Value
 
                 internal static new HTMLStartTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLStartTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2506,11 +2544,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute GetAttributes(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal();
-                    __Internal.GetAttributes(__Instance, new IntPtr(&__ret), i);
-                    var ____ret = global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal();
+                    __Internal.GetAttributes(__Instance, new IntPtr(&___ret), i);
+                    var _____ret = global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddAttributes(global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute s)
@@ -2544,8 +2582,8 @@ public uint AttributesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetAttributesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetAttributesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -2571,6 +2609,8 @@ public unsafe partial class HTMLEndTagComment : global::CppSharp.Parser.AST.HTML
 
                 internal static new HTMLEndTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLEndTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2682,6 +2722,8 @@ public unsafe partial class TextComment : global::CppSharp.Parser.AST.InlineCont
 
                 internal static new TextComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TextComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2812,6 +2854,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static RawComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new RawComment(native.ToPointer(), skipVTables);
                 }
 
@@ -3070,6 +3114,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static SourceRange __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new SourceRange(native.ToPointer(), skipVTables);
             }
 
@@ -3292,6 +3338,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Type __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Type(native.ToPointer(), skipVTables);
                 }
 
@@ -3435,6 +3483,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static TypeQualifiers __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeQualifiers(native.ToPointer(), skipVTables);
                 }
 
@@ -3584,6 +3634,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static QualifiedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new QualifiedType(native.ToPointer(), skipVTables);
                 }
 
@@ -3707,6 +3759,8 @@ public unsafe partial class TagType : global::CppSharp.Parser.AST.Type, IDisposa
 
                 internal static new TagType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TagType(native.ToPointer(), skipVTables);
                 }
 
@@ -3811,6 +3865,8 @@ public enum ArraySize
 
                 internal static new ArrayType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayType(native.ToPointer(), skipVTables);
                 }
 
@@ -3962,6 +4018,8 @@ public unsafe partial class FunctionType : global::CppSharp.Parser.AST.Type, IDi
 
                 internal static new FunctionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionType(native.ToPointer(), skipVTables);
                 }
 
@@ -4039,8 +4097,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Parameter GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -4103,8 +4161,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -4136,6 +4194,8 @@ public enum TypeModifier
 
                 internal static new PointerType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PointerType(native.ToPointer(), skipVTables);
                 }
 
@@ -4243,6 +4303,8 @@ public unsafe partial class MemberPointerType : global::CppSharp.Parser.AST.Type
 
                 internal static new MemberPointerType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MemberPointerType(native.ToPointer(), skipVTables);
                 }
 
@@ -4337,6 +4399,8 @@ public unsafe partial class TypedefType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new TypedefType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefType(native.ToPointer(), skipVTables);
                 }
 
@@ -4431,6 +4495,8 @@ public unsafe partial class AttributedType : global::CppSharp.Parser.AST.Type, I
 
                 internal static new AttributedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AttributedType(native.ToPointer(), skipVTables);
                 }
 
@@ -4542,6 +4608,8 @@ public unsafe partial class DecayedType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new DecayedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DecayedType(native.ToPointer(), skipVTables);
                 }
 
@@ -4697,6 +4765,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static TemplateArgument __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateArgument(native.ToPointer(), skipVTables);
                 }
 
@@ -4863,6 +4933,8 @@ public unsafe partial class TemplateSpecializationType : global::CppSharp.Parser
 
                 internal static new TemplateSpecializationType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateSpecializationType(native.ToPointer(), skipVTables);
                 }
 
@@ -4940,9 +5012,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -4991,8 +5063,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -5031,6 +5103,8 @@ public unsafe partial class DependentTemplateSpecializationType : global::CppSha
 
                 internal static new DependentTemplateSpecializationType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentTemplateSpecializationType(native.ToPointer(), skipVTables);
                 }
 
@@ -5108,9 +5182,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -5145,8 +5219,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -5175,6 +5249,8 @@ public unsafe partial class TemplateParameterType : global::CppSharp.Parser.AST.
 
                 internal static new TemplateParameterType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameterType(native.ToPointer(), skipVTables);
                 }
 
@@ -5323,6 +5399,8 @@ public unsafe partial class TemplateParameterSubstitutionType : global::CppSharp
 
                 internal static new TemplateParameterSubstitutionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameterSubstitutionType(native.ToPointer(), skipVTables);
                 }
 
@@ -5432,6 +5510,8 @@ public unsafe partial class InjectedClassNameType : global::CppSharp.Parser.AST.
 
                 internal static new InjectedClassNameType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InjectedClassNameType(native.ToPointer(), skipVTables);
                 }
 
@@ -5544,6 +5624,8 @@ public unsafe partial class DependentNameType : global::CppSharp.Parser.AST.Type
 
                 internal static new DependentNameType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentNameType(native.ToPointer(), skipVTables);
                 }
 
@@ -5666,6 +5748,8 @@ public unsafe partial class PackExpansionType : global::CppSharp.Parser.AST.Type
 
                 internal static new PackExpansionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PackExpansionType(native.ToPointer(), skipVTables);
                 }
 
@@ -5746,6 +5830,8 @@ public unsafe partial class UnaryTransformType : global::CppSharp.Parser.AST.Typ
 
                 internal static new UnaryTransformType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryTransformType(native.ToPointer(), skipVTables);
                 }
 
@@ -5855,6 +5941,8 @@ public unsafe partial class UnresolvedUsingType : global::CppSharp.Parser.AST.Ty
 
                 internal static new UnresolvedUsingType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedUsingType(native.ToPointer(), skipVTables);
                 }
 
@@ -5949,6 +6037,8 @@ public unsafe partial class VectorType : global::CppSharp.Parser.AST.Type, IDisp
 
                 internal static new VectorType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VectorType(native.ToPointer(), skipVTables);
                 }
 
@@ -6056,6 +6146,8 @@ public unsafe partial class BuiltinType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new BuiltinType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BuiltinType(native.ToPointer(), skipVTables);
                 }
 
@@ -6418,6 +6510,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Declaration __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Declaration(native.ToPointer(), skipVTables);
                 }
 
@@ -6500,8 +6594,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.PreprocessedEntity GetPreprocessedEntities(uint i)
                 {
-                    var __ret = __Internal.GetPreprocessedEntities(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.PreprocessedEntity.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetPreprocessedEntities(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.PreprocessedEntity.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -6521,8 +6615,8 @@ public void ClearPreprocessedEntities()
 
                 public global::CppSharp.Parser.AST.Declaration GetRedeclarations(uint i)
                 {
-                    var __ret = __Internal.GetRedeclarations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetRedeclarations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -6815,8 +6909,8 @@ public uint PreprocessedEntitiesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetPreprocessedEntitiesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetPreprocessedEntitiesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -6824,8 +6918,8 @@ public uint RedeclarationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetRedeclarationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetRedeclarationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -6989,6 +7083,8 @@ public unsafe partial class DeclarationContext : global::CppSharp.Parser.AST.Dec
 
                 internal static new DeclarationContext __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclarationContext(native.ToPointer(), skipVTables);
                 }
 
@@ -7066,8 +7162,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Namespace GetNamespaces(uint i)
                 {
-                    var __ret = __Internal.GetNamespaces(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Namespace.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetNamespaces(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Namespace.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7087,8 +7183,8 @@ public void ClearNamespaces()
 
                 public global::CppSharp.Parser.AST.Enumeration GetEnums(uint i)
                 {
-                    var __ret = __Internal.GetEnums(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetEnums(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7108,8 +7204,8 @@ public void ClearEnums()
 
                 public global::CppSharp.Parser.AST.Function GetFunctions(uint i)
                 {
-                    var __ret = __Internal.GetFunctions(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Function.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFunctions(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Function.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7129,8 +7225,8 @@ public void ClearFunctions()
 
                 public global::CppSharp.Parser.AST.Class GetClasses(uint i)
                 {
-                    var __ret = __Internal.GetClasses(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Class.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetClasses(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Class.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7150,8 +7246,8 @@ public void ClearClasses()
 
                 public global::CppSharp.Parser.AST.Template GetTemplates(uint i)
                 {
-                    var __ret = __Internal.GetTemplates(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Template.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTemplates(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Template.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7171,8 +7267,8 @@ public void ClearTemplates()
 
                 public global::CppSharp.Parser.AST.TypedefDecl GetTypedefs(uint i)
                 {
-                    var __ret = __Internal.GetTypedefs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TypedefDecl.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTypedefs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TypedefDecl.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7192,8 +7288,8 @@ public void ClearTypedefs()
 
                 public global::CppSharp.Parser.AST.TypeAlias GetTypeAliases(uint i)
                 {
-                    var __ret = __Internal.GetTypeAliases(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TypeAlias.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTypeAliases(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TypeAlias.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7213,8 +7309,8 @@ public void ClearTypeAliases()
 
                 public global::CppSharp.Parser.AST.Variable GetVariables(uint i)
                 {
-                    var __ret = __Internal.GetVariables(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Variable.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetVariables(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Variable.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7234,8 +7330,8 @@ public void ClearVariables()
 
                 public global::CppSharp.Parser.AST.Friend GetFriends(uint i)
                 {
-                    var __ret = __Internal.GetFriends(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Friend.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFriends(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Friend.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7275,8 +7371,8 @@ public uint NamespacesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetNamespacesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetNamespacesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7284,8 +7380,8 @@ public uint EnumsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetEnumsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetEnumsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7293,8 +7389,8 @@ public uint FunctionsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFunctionsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFunctionsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7302,8 +7398,8 @@ public uint ClassesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetClassesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetClassesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7311,8 +7407,8 @@ public uint TemplatesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTemplatesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTemplatesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7320,8 +7416,8 @@ public uint TypedefsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTypedefsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTypedefsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7329,8 +7425,8 @@ public uint TypeAliasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTypeAliasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTypeAliasesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7338,8 +7434,8 @@ public uint VariablesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetVariablesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetVariablesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7347,8 +7443,8 @@ public uint FriendsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFriendsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFriendsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -7394,6 +7490,8 @@ public unsafe partial class TypedefNameDecl : global::CppSharp.Parser.AST.Declar
 
                 internal static new TypedefNameDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefNameDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -7531,6 +7629,8 @@ public unsafe partial class TypedefDecl : global::CppSharp.Parser.AST.TypedefNam
 
                 internal static new TypedefDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -7649,6 +7749,8 @@ public unsafe partial class TypeAlias : global::CppSharp.Parser.AST.TypedefNameD
 
                 internal static new TypeAlias __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeAlias(native.ToPointer(), skipVTables);
                 }
 
@@ -7780,6 +7882,8 @@ public unsafe partial class Friend : global::CppSharp.Parser.AST.Declaration, ID
 
                 internal static new Friend __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Friend(native.ToPointer(), skipVTables);
                 }
 
@@ -7909,6 +8013,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static StatementObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StatementObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8057,6 +8163,8 @@ public unsafe partial class ExpressionObsolete : global::CppSharp.Parser.AST.Sta
 
                 internal static new ExpressionObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExpressionObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8162,6 +8270,8 @@ public unsafe partial class BinaryOperatorObsolete : global::CppSharp.Parser.AST
 
                 internal static new BinaryOperatorObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryOperatorObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8324,6 +8434,8 @@ public unsafe partial class CallExprObsolete : global::CppSharp.Parser.AST.Expre
 
                 internal static new CallExprObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CallExprObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8406,8 +8518,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ExpressionObsolete GetArguments(uint i)
                 {
-                    var __ret = __Internal.GetArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -8429,8 +8541,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -8469,6 +8581,8 @@ public unsafe partial class CXXConstructExprObsolete : global::CppSharp.Parser.A
 
                 internal static new CXXConstructExprObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstructExprObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8551,8 +8665,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ExpressionObsolete GetArguments(uint i)
                 {
-                    var __ret = __Internal.GetArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -8574,8 +8688,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -8626,6 +8740,8 @@ public unsafe partial class Parameter : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Parameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Parameter(native.ToPointer(), skipVTables);
                 }
 
@@ -8867,6 +8983,8 @@ public unsafe partial class Function : global::CppSharp.Parser.AST.DeclarationCo
 
                 internal static new Function __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Function(native.ToPointer(), skipVTables);
                 }
 
@@ -8944,8 +9062,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Parameter GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9224,8 +9342,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9324,6 +9442,8 @@ public unsafe partial class Method : global::CppSharp.Parser.AST.Function, IDisp
 
                 internal static new Method __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Method(native.ToPointer(), skipVTables);
                 }
 
@@ -9401,8 +9521,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Method GetOverriddenMethods(uint i)
                 {
-                    var __ret = __Internal.GetOverriddenMethods(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetOverriddenMethods(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9556,8 +9676,8 @@ public uint OverriddenMethodsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetOverriddenMethodsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetOverriddenMethodsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9680,6 +9800,8 @@ public unsafe partial class Item : global::CppSharp.Parser.AST.Declaration, IDis
 
                     internal static new Item __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Item(native.ToPointer(), skipVTables);
                     }
 
@@ -9785,6 +9907,8 @@ public ulong Value
 
                 internal static new Enumeration __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Enumeration(native.ToPointer(), skipVTables);
                 }
 
@@ -9862,8 +9986,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Enumeration.Item GetItems(uint i)
                 {
-                    var __ret = __Internal.GetItems(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetItems(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9886,9 +10010,9 @@ public void ClearItems()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, Name);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindItemByName(__Instance, __arg0);
+                    var ___ret = __Internal.FindItemByName(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9937,8 +10061,8 @@ public uint ItemsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetItemsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetItemsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9987,6 +10111,8 @@ public unsafe partial class Variable : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Variable __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Variable(native.ToPointer(), skipVTables);
                 }
 
@@ -10156,6 +10282,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static BaseClassSpecifier __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BaseClassSpecifier(native.ToPointer(), skipVTables);
                 }
 
@@ -10329,6 +10457,8 @@ public unsafe partial class Field : global::CppSharp.Parser.AST.Declaration, IDi
 
                 internal static new Field __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Field(native.ToPointer(), skipVTables);
                 }
 
@@ -10500,6 +10630,8 @@ public unsafe partial class AccessSpecifierDecl : global::CppSharp.Parser.AST.De
 
                 internal static new AccessSpecifierDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AccessSpecifierDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -10612,6 +10744,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VTableComponent __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VTableComponent(native.ToPointer(), skipVTables);
                 }
 
@@ -10777,6 +10911,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VTableLayout __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VTableLayout(native.ToPointer(), skipVTables);
                 }
 
@@ -10859,9 +10995,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VTableComponent GetComponents(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.VTableComponent.__Internal();
-                    __Internal.GetComponents(__Instance, new IntPtr(&__ret), i);
-                    return global::CppSharp.Parser.AST.VTableComponent.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.VTableComponent.__Internal();
+                    __Internal.GetComponents(__Instance, new IntPtr(&___ret), i);
+                    return global::CppSharp.Parser.AST.VTableComponent.__CreateInstance(___ret);
                 }
 
                 public void AddComponents(global::CppSharp.Parser.AST.VTableComponent s)
@@ -10881,8 +11017,8 @@ public uint ComponentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetComponentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetComponentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -10927,6 +11063,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VFTableInfo __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VFTableInfo(native.ToPointer(), skipVTables);
                 }
 
@@ -11102,6 +11240,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static LayoutField __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LayoutField(native.ToPointer(), skipVTables);
                 }
 
@@ -11276,6 +11416,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static LayoutBase __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LayoutBase(native.ToPointer(), skipVTables);
                 }
 
@@ -11467,6 +11609,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static ClassLayout __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassLayout(native.ToPointer(), skipVTables);
                 }
 
@@ -11549,11 +11693,11 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VFTableInfo GetVFTables(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.VFTableInfo.__Internal();
-                    __Internal.GetVFTables(__Instance, new IntPtr(&__ret), i);
-                    var ____ret = global::CppSharp.Parser.AST.VFTableInfo.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.VFTableInfo.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.VFTableInfo.__Internal();
+                    __Internal.GetVFTables(__Instance, new IntPtr(&___ret), i);
+                    var _____ret = global::CppSharp.Parser.AST.VFTableInfo.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.VFTableInfo.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddVFTables(global::CppSharp.Parser.AST.VFTableInfo s)
@@ -11571,11 +11715,11 @@ public void ClearVFTables()
 
                 public global::CppSharp.Parser.AST.LayoutField GetFields(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.LayoutField.__Internal();
-                    __Internal.GetFields(__Instance, new IntPtr(&__ret), i);
-                    var ____ret = global::CppSharp.Parser.AST.LayoutField.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.LayoutField.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.LayoutField.__Internal();
+                    __Internal.GetFields(__Instance, new IntPtr(&___ret), i);
+                    var _____ret = global::CppSharp.Parser.AST.LayoutField.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.LayoutField.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddFields(global::CppSharp.Parser.AST.LayoutField s)
@@ -11593,11 +11737,11 @@ public void ClearFields()
 
                 public global::CppSharp.Parser.AST.LayoutBase GetBases(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.LayoutBase.__Internal();
-                    __Internal.GetBases(__Instance, new IntPtr(&__ret), i);
-                    var ____ret = global::CppSharp.Parser.AST.LayoutBase.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.LayoutBase.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.LayoutBase.__Internal();
+                    __Internal.GetBases(__Instance, new IntPtr(&___ret), i);
+                    var _____ret = global::CppSharp.Parser.AST.LayoutBase.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.LayoutBase.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddBases(global::CppSharp.Parser.AST.LayoutBase s)
@@ -11723,8 +11867,8 @@ public uint VFTablesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetVFTablesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetVFTablesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -11732,8 +11876,8 @@ public uint FieldsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFieldsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFieldsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -11741,8 +11885,8 @@ public uint BasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBasesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -11862,6 +12006,8 @@ public unsafe partial class Class : global::CppSharp.Parser.AST.DeclarationConte
 
                 internal static new Class __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Class(native.ToPointer(), skipVTables);
                 }
 
@@ -11939,8 +12085,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BaseClassSpecifier GetBases(uint i)
                 {
-                    var __ret = __Internal.GetBases(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.BaseClassSpecifier.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetBases(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.BaseClassSpecifier.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -11960,8 +12106,8 @@ public void ClearBases()
 
                 public global::CppSharp.Parser.AST.Field GetFields(uint i)
                 {
-                    var __ret = __Internal.GetFields(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Field.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFields(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Field.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -11981,8 +12127,8 @@ public void ClearFields()
 
                 public global::CppSharp.Parser.AST.Method GetMethods(uint i)
                 {
-                    var __ret = __Internal.GetMethods(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetMethods(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12002,8 +12148,8 @@ public void ClearMethods()
 
                 public global::CppSharp.Parser.AST.AccessSpecifierDecl GetSpecifiers(uint i)
                 {
-                    var __ret = __Internal.GetSpecifiers(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.AccessSpecifierDecl.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecifiers(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.AccessSpecifierDecl.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12182,8 +12328,8 @@ public uint BasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBasesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12191,8 +12337,8 @@ public uint FieldsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFieldsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFieldsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12200,8 +12346,8 @@ public uint MethodsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetMethodsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetMethodsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12209,8 +12355,8 @@ public uint SpecifiersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecifiersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecifiersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -12272,6 +12418,8 @@ public unsafe partial class Template : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Template __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Template(native.ToPointer(), skipVTables);
                 }
 
@@ -12358,8 +12506,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Declaration GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12400,8 +12548,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -12448,6 +12596,8 @@ public unsafe partial class TypeAliasTemplate : global::CppSharp.Parser.AST.Temp
 
                 internal static new TypeAliasTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeAliasTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -12567,6 +12717,8 @@ public unsafe partial class TemplateParameter : global::CppSharp.Parser.AST.Decl
 
                 internal static new TemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12732,6 +12884,8 @@ public unsafe partial class TemplateTemplateParameter : global::CppSharp.Parser.
 
                 internal static new TemplateTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12891,6 +13045,8 @@ public unsafe partial class TypeTemplateParameter : global::CppSharp.Parser.AST.
 
                 internal static new TypeTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12984,7 +13140,7 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
             public unsafe partial class NonTypeTemplateParameter : global::CppSharp.Parser.AST.TemplateParameter, IDisposable
             {
-                [StructLayout(LayoutKind.Sequential, Size = 180)]
+                [StructLayout(LayoutKind.Sequential, Size = 188)]
                 public new partial struct __Internal
                 {
                     internal global::CppSharp.Parser.AST.DeclarationKind kind;
@@ -13031,6 +13187,8 @@ public unsafe partial class NonTypeTemplateParameter : global::CppSharp.Parser.A
 
                 internal static new NonTypeTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NonTypeTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -13250,6 +13408,8 @@ public unsafe partial class ClassTemplate : global::CppSharp.Parser.AST.Template
 
                 internal static new ClassTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -13327,8 +13487,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ClassTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13351,9 +13511,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13362,9 +13522,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplatePartialSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplatePartialSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13372,8 +13532,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13460,6 +13620,8 @@ public unsafe partial class ClassTemplateSpecialization : global::CppSharp.Parse
 
                 internal static new ClassTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -13537,9 +13699,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -13586,8 +13748,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13662,6 +13824,8 @@ public unsafe partial class ClassTemplatePartialSpecialization : global::CppShar
 
                 internal static new ClassTemplatePartialSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplatePartialSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -13796,6 +13960,8 @@ public unsafe partial class FunctionTemplate : global::CppSharp.Parser.AST.Templ
 
                 internal static new FunctionTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -13873,8 +14039,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.FunctionTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13897,9 +14063,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13907,8 +14073,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13965,6 +14131,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static FunctionTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14047,9 +14215,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -14110,8 +14278,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14177,6 +14345,8 @@ public unsafe partial class VarTemplate : global::CppSharp.Parser.AST.Template,
 
                 internal static new VarTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -14254,8 +14424,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VarTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14278,9 +14448,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14289,9 +14459,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplatePartialSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplatePartialSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14299,8 +14469,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14364,6 +14534,8 @@ public unsafe partial class VarTemplateSpecialization : global::CppSharp.Parser.
 
                 internal static new VarTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14441,9 +14613,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -14490,8 +14662,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14543,6 +14715,8 @@ public unsafe partial class VarTemplatePartialSpecialization : global::CppSharp.
 
                 internal static new VarTemplatePartialSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplatePartialSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14659,6 +14833,8 @@ public unsafe partial class UnresolvedUsingTypename : global::CppSharp.Parser.AS
 
                 internal static new UnresolvedUsingTypename __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedUsingTypename(native.ToPointer(), skipVTables);
                 }
 
@@ -14788,6 +14964,8 @@ public unsafe partial class Namespace : global::CppSharp.Parser.AST.DeclarationC
 
                 internal static new Namespace __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Namespace(native.ToPointer(), skipVTables);
                 }
 
@@ -14913,6 +15091,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static PreprocessedEntity __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PreprocessedEntity(native.ToPointer(), skipVTables);
                 }
 
@@ -15053,6 +15233,8 @@ public unsafe partial class MacroDefinition : global::CppSharp.Parser.AST.Prepro
 
                 internal static new MacroDefinition __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MacroDefinition(native.ToPointer(), skipVTables);
                 }
 
@@ -15207,6 +15389,8 @@ public unsafe partial class MacroExpansion : global::CppSharp.Parser.AST.Preproc
 
                 internal static new MacroExpansion __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MacroExpansion(native.ToPointer(), skipVTables);
                 }
 
@@ -15393,6 +15577,8 @@ public unsafe partial class TranslationUnit : global::CppSharp.Parser.AST.Namesp
 
                 internal static new TranslationUnit __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TranslationUnit(native.ToPointer(), skipVTables);
                 }
 
@@ -15470,8 +15656,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.MacroDefinition GetMacros(uint i)
                 {
-                    var __ret = __Internal.GetMacros(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.MacroDefinition.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetMacros(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.MacroDefinition.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -15520,8 +15706,8 @@ public uint MacrosCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetMacrosCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetMacrosCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -15578,6 +15764,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static ASTContext __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ASTContext(native.ToPointer(), skipVTables);
                 }
 
@@ -15663,16 +15851,16 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, File);
                     var __arg0 = *(global::Std.BasicString.__Internalc__N_std_S_basic_string__C___N_std_S_char_traits__C___N_std_S_allocator__C*) __basicString0.__Instance;
-                    var __ret = __Internal.FindOrCreateModule(__Instance, __arg0);
+                    var ___ret = __Internal.FindOrCreateModule(__Instance, __arg0);
                     __basicString0.Dispose(disposing: true, callNativeDtor:false);
-                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
                 public global::CppSharp.Parser.AST.TranslationUnit GetTranslationUnits(uint i)
                 {
-                    var __ret = __Internal.GetTranslationUnits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTranslationUnits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -15694,8 +15882,8 @@ public uint TranslationUnitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTranslationUnitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTranslationUnitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -15879,6 +16067,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Stmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Stmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16059,6 +16249,8 @@ public unsafe partial class DeclStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new DeclStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16136,8 +16328,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Declaration Getdecls(uint i)
                 {
-                    var __ret = __Internal.Getdecls(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getdecls(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -16186,8 +16378,8 @@ public uint GetdeclsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetdeclsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetdeclsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -16213,6 +16405,8 @@ public unsafe partial class NullStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new NullStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NullStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16338,6 +16532,8 @@ public unsafe partial class CompoundStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new CompoundStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16415,8 +16611,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Stmt Getbody(uint i)
                 {
-                    var __ret = __Internal.Getbody(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Stmt.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getbody(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Stmt.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -16518,8 +16714,8 @@ public uint GetbodyCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetbodyCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetbodyCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -16549,6 +16745,8 @@ public unsafe partial class SwitchCase : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SwitchCase __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SwitchCase(native.ToPointer(), skipVTables);
                 }
 
@@ -16688,6 +16886,8 @@ public unsafe partial class CaseStmt : global::CppSharp.Parser.AST.SwitchCase, I
 
                 internal static new CaseStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CaseStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16836,6 +17036,8 @@ public unsafe partial class DefaultStmt : global::CppSharp.Parser.AST.SwitchCase
 
                 internal static new DefaultStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DefaultStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16930,6 +17132,8 @@ public unsafe partial class LabelStmt : global::CppSharp.Parser.AST.Stmt, IDispo
                 private bool __name_OwnsNativeMemory = false;
                 internal static new LabelStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LabelStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17063,6 +17267,8 @@ public unsafe partial class AttributedStmt : global::CppSharp.Parser.AST.Stmt, I
 
                 internal static new AttributedStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AttributedStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17179,6 +17385,8 @@ public unsafe partial class IfStmt : global::CppSharp.Parser.AST.Stmt, IDisposab
 
                 internal static new IfStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IfStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17425,6 +17633,8 @@ public unsafe partial class SwitchStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SwitchStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SwitchStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17615,6 +17825,8 @@ public unsafe partial class WhileStmt : global::CppSharp.Parser.AST.Stmt, IDispo
 
                 internal static new WhileStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new WhileStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17765,6 +17977,8 @@ public unsafe partial class DoStmt : global::CppSharp.Parser.AST.Stmt, IDisposab
 
                 internal static new DoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17917,6 +18131,8 @@ public unsafe partial class ForStmt : global::CppSharp.Parser.AST.Stmt, IDisposa
 
                 internal static new ForStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ForStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18105,6 +18321,8 @@ public unsafe partial class GotoStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new GotoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GotoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18211,6 +18429,8 @@ public unsafe partial class IndirectGotoStmt : global::CppSharp.Parser.AST.Stmt,
 
                 internal static new IndirectGotoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IndirectGotoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18329,6 +18549,8 @@ public unsafe partial class ContinueStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new ContinueStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ContinueStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18420,6 +18642,8 @@ public unsafe partial class BreakStmt : global::CppSharp.Parser.AST.Stmt, IDispo
 
                 internal static new BreakStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BreakStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18512,6 +18736,8 @@ public unsafe partial class ReturnStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new ReturnStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ReturnStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18655,6 +18881,8 @@ public unsafe partial class AsmStmt : global::CppSharp.Parser.AST.Stmt, IDisposa
 
                 internal static new AsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18741,8 +18969,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getinputs(uint i)
                 {
-                    var __ret = __Internal.Getinputs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getinputs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -18762,8 +18990,8 @@ public void Clearinputs()
 
                 public global::CppSharp.Parser.AST.Expr Getoutputs(uint i)
                 {
-                    var __ret = __Internal.Getoutputs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getoutputs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -18881,8 +19109,8 @@ public uint GetinputsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetinputsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetinputsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -18890,8 +19118,8 @@ public uint GetoutputsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetoutputsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetoutputsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -18973,6 +19201,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static AsmStringPiece __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new AsmStringPiece(native.ToPointer(), skipVTables);
                     }
 
@@ -19122,6 +19352,8 @@ public sbyte Modifier
 
                 internal static new GCCAsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GCCAsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19246,6 +19478,8 @@ public unsafe partial class MSAsmStmt : global::CppSharp.Parser.AST.AsmStmt, IDi
 
                 internal static new MSAsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSAsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19397,6 +19631,8 @@ public unsafe partial class SEHExceptStmt : global::CppSharp.Parser.AST.Stmt, ID
 
                 internal static new SEHExceptStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHExceptStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19517,6 +19753,8 @@ public unsafe partial class SEHFinallyStmt : global::CppSharp.Parser.AST.Stmt, I
 
                 internal static new SEHFinallyStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHFinallyStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19627,6 +19865,8 @@ public unsafe partial class SEHTryStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SEHTryStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHTryStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19787,6 +20027,8 @@ public unsafe partial class SEHLeaveStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new SEHLeaveStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHLeaveStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19940,6 +20182,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Capture __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Capture(native.ToPointer(), skipVTables);
                     }
 
@@ -20096,6 +20340,8 @@ public bool CapturesVariableArrayType
 
                 internal static new CapturedStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CapturedStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20173,8 +20419,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetcaptureInits(uint i)
                 {
-                    var __ret = __Internal.GetcaptureInits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetcaptureInits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -20223,8 +20469,8 @@ public uint GetcaptureInitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetcaptureInitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetcaptureInitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -20251,6 +20497,8 @@ public unsafe partial class CXXCatchStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new CXXCatchStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXCatchStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20373,6 +20621,8 @@ public unsafe partial class CXXTryStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new CXXTryStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTryStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20503,6 +20753,8 @@ public unsafe partial class CXXForRangeStmt : global::CppSharp.Parser.AST.Stmt,
 
                 internal static new CXXForRangeStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXForRangeStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20762,6 +21014,8 @@ public unsafe partial class MSDependentExistsStmt : global::CppSharp.Parser.AST.
 
                 internal static new MSDependentExistsStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSDependentExistsStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20952,6 +21206,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static CtorArgs __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new CtorArgs(native.ToPointer(), skipVTables);
                     }
 
@@ -21030,6 +21286,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new CoroutineBodyStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoroutineBodyStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -21299,6 +21557,8 @@ public enum SubStmt
 
                 internal static new CoreturnStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoreturnStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -21774,6 +22034,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Classification __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Classification(native.ToPointer(), skipVTables);
                     }
 
@@ -21956,6 +22218,8 @@ public bool IsModifiable
 
                 internal static new Expr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Expr(native.ToPointer(), skipVTables);
                 }
 
@@ -22251,6 +22515,8 @@ public unsafe partial class FullExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new FullExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FullExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22371,6 +22637,8 @@ public unsafe partial class ConstantExpr : global::CppSharp.Parser.AST.FullExpr,
 
                 internal static new ConstantExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConstantExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22466,6 +22734,8 @@ public unsafe partial class OpaqueValueExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new OpaqueValueExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OpaqueValueExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22609,6 +22879,8 @@ public unsafe partial class DeclRefExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new DeclRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22859,6 +23131,8 @@ public unsafe partial class IntegerLiteral : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new IntegerLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IntegerLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -22978,6 +23252,8 @@ public unsafe partial class FixedPointLiteral : global::CppSharp.Parser.AST.Expr
 
                 internal static new FixedPointLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FixedPointLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23107,6 +23383,8 @@ public enum CharacterKind
 
                 internal static new CharacterLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CharacterLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23241,6 +23519,8 @@ public unsafe partial class FloatingLiteral : global::CppSharp.Parser.AST.Expr,
 
                 internal static new FloatingLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FloatingLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23372,6 +23652,8 @@ public unsafe partial class ImaginaryLiteral : global::CppSharp.Parser.AST.Expr,
 
                 internal static new ImaginaryLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImaginaryLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23504,6 +23786,8 @@ public enum StringKind
 
                 internal static new StringLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StringLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23824,6 +24108,8 @@ public enum IdentKind
 
                 internal static new PredefinedExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PredefinedExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -23944,6 +24230,8 @@ public unsafe partial class ParenExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new ParenExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParenExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24086,6 +24374,8 @@ public unsafe partial class UnaryOperator : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new UnaryOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -24325,6 +24615,8 @@ public unsafe partial class OffsetOfExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new OffsetOfExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OffsetOfExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24475,6 +24767,8 @@ public unsafe partial class UnaryExprOrTypeTraitExpr : global::CppSharp.Parser.A
 
                 internal static new UnaryExprOrTypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryExprOrTypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24667,6 +24961,8 @@ public unsafe partial class ArraySubscriptExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArraySubscriptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArraySubscriptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24854,6 +25150,8 @@ public unsafe partial class CallExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new CallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24940,8 +25238,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -25075,8 +25373,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -25127,6 +25425,8 @@ public unsafe partial class MemberExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new MemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25391,6 +25691,8 @@ public unsafe partial class CompoundLiteralExpr : global::CppSharp.Parser.AST.Ex
 
                 internal static new CompoundLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25533,6 +25835,8 @@ public unsafe partial class CastExpr : global::CppSharp.Parser.AST.Expr, IDispos
                 private bool __castKindName_OwnsNativeMemory = false;
                 internal static new CastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25759,6 +26063,8 @@ public enum OnStack_t
 
                 internal static new ImplicitCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImplicitCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25874,6 +26180,8 @@ public unsafe partial class ExplicitCastExpr : global::CppSharp.Parser.AST.CastE
 
                 internal static new ExplicitCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExplicitCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -26004,6 +26312,8 @@ public unsafe partial class CStyleCastExpr : global::CppSharp.Parser.AST.Explici
 
                 internal static new CStyleCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CStyleCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -26146,6 +26456,8 @@ public unsafe partial class BinaryOperator : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new BinaryOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26543,6 +26855,8 @@ public unsafe partial class CompoundAssignOperator : global::CppSharp.Parser.AST
 
                 internal static new CompoundAssignOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundAssignOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26690,6 +27004,8 @@ public unsafe partial class AbstractConditionalOperator : global::CppSharp.Parse
 
                 internal static new AbstractConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AbstractConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26870,6 +27186,8 @@ public unsafe partial class ConditionalOperator : global::CppSharp.Parser.AST.Ab
 
                 internal static new ConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26996,6 +27314,8 @@ public unsafe partial class BinaryConditionalOperator : global::CppSharp.Parser.
 
                 internal static new BinaryConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -27117,6 +27437,8 @@ public unsafe partial class AddrLabelExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new AddrLabelExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AddrLabelExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27237,6 +27559,8 @@ public unsafe partial class StmtExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new StmtExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StmtExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27371,6 +27695,8 @@ public unsafe partial class ShuffleVectorExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ShuffleVectorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ShuffleVectorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27504,6 +27830,8 @@ public unsafe partial class ConvertVectorExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ConvertVectorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConvertVectorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27644,6 +27972,8 @@ public unsafe partial class ChooseExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new ChooseExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ChooseExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27844,6 +28174,8 @@ public unsafe partial class GNUNullExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new GNUNullExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GNUNullExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27952,6 +28284,8 @@ public unsafe partial class VAArgExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new VAArgExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VAArgExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -28108,6 +28442,8 @@ public unsafe partial class InitListExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new InitListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InitListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -28406,6 +28742,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Designator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Designator(native.ToPointer(), skipVTables);
                     }
 
@@ -28660,6 +28998,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static FieldDesignator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new FieldDesignator(native.ToPointer(), skipVTables);
                     }
 
@@ -28768,6 +29108,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static ArrayOrRangeDesignator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new ArrayOrRangeDesignator(native.ToPointer(), skipVTables);
                     }
 
@@ -28846,6 +29188,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new DesignatedInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DesignatedInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29018,6 +29362,8 @@ public unsafe partial class NoInitExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new NoInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NoInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29111,6 +29457,8 @@ public unsafe partial class DesignatedInitUpdateExpr : global::CppSharp.Parser.A
 
                 internal static new DesignatedInitUpdateExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DesignatedInitUpdateExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29232,6 +29580,8 @@ public unsafe partial class ArrayInitLoopExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ArrayInitLoopExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayInitLoopExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29351,6 +29701,8 @@ public unsafe partial class ArrayInitIndexExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArrayInitIndexExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayInitIndexExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29442,6 +29794,8 @@ public unsafe partial class ImplicitValueInitExpr : global::CppSharp.Parser.AST.
 
                 internal static new ImplicitValueInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImplicitValueInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29536,6 +29890,8 @@ public unsafe partial class ParenListExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new ParenListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParenListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29674,6 +30030,8 @@ public unsafe partial class GenericSelectionExpr : global::CppSharp.Parser.AST.E
 
                 internal static new GenericSelectionExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GenericSelectionExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29876,6 +30234,8 @@ public unsafe partial class ExtVectorElementExpr : global::CppSharp.Parser.AST.E
 
                 internal static new ExtVectorElementExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExtVectorElementExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30035,6 +30395,8 @@ public unsafe partial class BlockExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new BlockExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30156,6 +30518,8 @@ public unsafe partial class AsTypeExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new AsTypeExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AsTypeExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30291,6 +30655,8 @@ public unsafe partial class PseudoObjectExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new PseudoObjectExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PseudoObjectExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30501,6 +30867,8 @@ public enum AtomicOp
 
                 internal static new AtomicExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AtomicExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30796,6 +31164,8 @@ public unsafe partial class TypoExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new TypoExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypoExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30903,6 +31273,8 @@ public unsafe partial class CXXOperatorCallExpr : global::CppSharp.Parser.AST.Ca
 
                 internal static new CXXOperatorCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXOperatorCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31078,6 +31450,8 @@ public unsafe partial class CXXMemberCallExpr : global::CppSharp.Parser.AST.Call
 
                 internal static new CXXMemberCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXMemberCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31228,6 +31602,8 @@ public unsafe partial class CUDAKernelCallExpr : global::CppSharp.Parser.AST.Cal
 
                 internal static new CUDAKernelCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CUDAKernelCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31367,6 +31743,8 @@ public unsafe partial class CXXNamedCastExpr : global::CppSharp.Parser.AST.Expli
                 private bool __castName_OwnsNativeMemory = false;
                 internal static new CXXNamedCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNamedCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31552,6 +31930,8 @@ public unsafe partial class CXXStaticCastExpr : global::CppSharp.Parser.AST.CXXN
 
                 internal static new CXXStaticCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXStaticCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31656,6 +32036,8 @@ public unsafe partial class CXXDynamicCastExpr : global::CppSharp.Parser.AST.CXX
 
                 internal static new CXXDynamicCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDynamicCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31772,6 +32154,8 @@ public unsafe partial class CXXReinterpretCastExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXReinterpretCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXReinterpretCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31875,6 +32259,8 @@ public unsafe partial class CXXConstCastExpr : global::CppSharp.Parser.AST.CXXNa
 
                 internal static new CXXConstCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31991,6 +32377,8 @@ public enum LiteralOperatorKind
 
                 internal static new UserDefinedLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UserDefinedLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -32143,6 +32531,8 @@ public unsafe partial class CXXBoolLiteralExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new CXXBoolLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXBoolLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32261,6 +32651,8 @@ public unsafe partial class CXXNullPtrLiteralExpr : global::CppSharp.Parser.AST.
 
                 internal static new CXXNullPtrLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNullPtrLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32366,6 +32758,8 @@ public unsafe partial class CXXStdInitializerListExpr : global::CppSharp.Parser.
 
                 internal static new CXXStdInitializerListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXStdInitializerListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32474,6 +32868,8 @@ public unsafe partial class CXXTypeidExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXTypeidExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTypeidExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32610,6 +33006,8 @@ public unsafe partial class MSPropertyRefExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new MSPropertyRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSPropertyRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32757,6 +33155,8 @@ public unsafe partial class MSPropertySubscriptExpr : global::CppSharp.Parser.AS
 
                 internal static new MSPropertySubscriptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSPropertySubscriptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32895,6 +33295,8 @@ public unsafe partial class CXXUuidofExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXUuidofExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXUuidofExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33047,6 +33449,8 @@ public unsafe partial class CXXThisExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new CXXThisExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXThisExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33167,6 +33571,8 @@ public unsafe partial class CXXThrowExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new CXXThrowExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXThrowExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33300,6 +33706,8 @@ public unsafe partial class CXXDefaultArgExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new CXXDefaultArgExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDefaultArgExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33420,6 +33828,8 @@ public unsafe partial class CXXDefaultInitExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new CXXDefaultInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDefaultInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33540,6 +33950,8 @@ public unsafe partial class CXXBindTemporaryExpr : global::CppSharp.Parser.AST.E
 
                 internal static new CXXBindTemporaryExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXBindTemporaryExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33680,6 +34092,8 @@ public enum ConstructionKind
 
                 internal static new CXXConstructExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstructExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33766,8 +34180,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -33900,8 +34314,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -33943,6 +34357,8 @@ public unsafe partial class CXXInheritedCtorInitExpr : global::CppSharp.Parser.A
 
                 internal static new CXXInheritedCtorInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXInheritedCtorInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34084,6 +34500,8 @@ public unsafe partial class CXXFunctionalCastExpr : global::CppSharp.Parser.AST.
 
                 internal static new CXXFunctionalCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXFunctionalCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34226,6 +34644,8 @@ public unsafe partial class CXXTemporaryObjectExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXTemporaryObjectExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTemporaryObjectExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34360,6 +34780,8 @@ public unsafe partial class LambdaExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new LambdaExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LambdaExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34437,8 +34859,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetcaptureInits(uint i)
                 {
-                    var __ret = __Internal.GetcaptureInits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetcaptureInits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -34581,8 +35003,8 @@ public uint GetcaptureInitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetcaptureInitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetcaptureInitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -34621,6 +35043,8 @@ public unsafe partial class CXXScalarValueInitExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXScalarValueInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXScalarValueInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34762,6 +35186,8 @@ public enum InitializationStyle
 
                 internal static new CXXNewExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNewExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34839,8 +35265,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetplacementArguments(uint i)
                 {
-                    var __ret = __Internal.GetplacementArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetplacementArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -35055,8 +35481,8 @@ public uint GetplacementArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetplacementArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetplacementArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -35101,6 +35527,8 @@ public unsafe partial class CXXDeleteExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXDeleteExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDeleteExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35282,6 +35710,8 @@ public unsafe partial class CXXPseudoDestructorExpr : global::CppSharp.Parser.AS
 
                 internal static new CXXPseudoDestructorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXPseudoDestructorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35483,6 +35913,8 @@ public unsafe partial class TypeTraitExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new TypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35603,6 +36035,8 @@ public unsafe partial class ArrayTypeTraitExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArrayTypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayTypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35738,6 +36172,8 @@ public unsafe partial class ExpressionTraitExpr : global::CppSharp.Parser.AST.Ex
 
                 internal static new ExpressionTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExpressionTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35897,6 +36333,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static FindResult __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new FindResult(native.ToPointer(), skipVTables);
                     }
 
@@ -35975,6 +36413,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new OverloadExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OverloadExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36194,6 +36634,8 @@ public unsafe partial class UnresolvedLookupExpr : global::CppSharp.Parser.AST.O
 
                 internal static new UnresolvedLookupExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedLookupExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36318,6 +36760,8 @@ public unsafe partial class DependentScopeDeclRefExpr : global::CppSharp.Parser.
 
                 internal static new DependentScopeDeclRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentScopeDeclRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36503,6 +36947,8 @@ public unsafe partial class ExprWithCleanups : global::CppSharp.Parser.AST.FullE
 
                 internal static new ExprWithCleanups __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExprWithCleanups(native.ToPointer(), skipVTables);
                 }
 
@@ -36641,6 +37087,8 @@ public unsafe partial class CXXUnresolvedConstructExpr : global::CppSharp.Parser
 
                 internal static new CXXUnresolvedConstructExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXUnresolvedConstructExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36718,8 +37166,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -36808,8 +37256,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -36861,6 +37309,8 @@ public unsafe partial class CXXDependentScopeMemberExpr : global::CppSharp.Parse
 
                 internal static new CXXDependentScopeMemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDependentScopeMemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37140,6 +37590,8 @@ public unsafe partial class UnresolvedMemberExpr : global::CppSharp.Parser.AST.O
 
                 internal static new UnresolvedMemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedMemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37327,6 +37779,8 @@ public unsafe partial class CXXNoexceptExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new CXXNoexceptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNoexceptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37447,6 +37901,8 @@ public unsafe partial class PackExpansionExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new PackExpansionExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PackExpansionExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37571,6 +38027,8 @@ public unsafe partial class SizeOfPackExpr : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new SizeOfPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SizeOfPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37743,6 +38201,8 @@ public unsafe partial class SubstNonTypeTemplateParmExpr : global::CppSharp.Pars
 
                 internal static new SubstNonTypeTemplateParmExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SubstNonTypeTemplateParmExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37863,6 +38323,8 @@ public unsafe partial class SubstNonTypeTemplateParmPackExpr : global::CppSharp.
 
                 internal static new SubstNonTypeTemplateParmPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SubstNonTypeTemplateParmPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37984,6 +38446,8 @@ public unsafe partial class FunctionParmPackExpr : global::CppSharp.Parser.AST.E
 
                 internal static new FunctionParmPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionParmPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38135,6 +38599,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static ExtraState __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new ExtraState(native.ToPointer(), skipVTables);
                     }
 
@@ -38213,6 +38679,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new MaterializeTemporaryExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MaterializeTemporaryExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38366,6 +38834,8 @@ public unsafe partial class CXXFoldExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new CXXFoldExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXFoldExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38583,6 +39053,8 @@ public enum SubExpr
 
                 internal static new CoroutineSuspendExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoroutineSuspendExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38779,6 +39251,8 @@ public unsafe partial class CoawaitExpr : global::CppSharp.Parser.AST.CoroutineS
 
                 internal static new CoawaitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoawaitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38900,6 +39374,8 @@ public unsafe partial class DependentCoawaitExpr : global::CppSharp.Parser.AST.E
 
                 internal static new DependentCoawaitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentCoawaitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -39039,6 +39515,8 @@ public unsafe partial class CoyieldExpr : global::CppSharp.Parser.AST.CoroutineS
 
                 internal static new CoyieldExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoyieldExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -39210,6 +39688,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserTargetInfo __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserTargetInfo(native.ToPointer(), skipVTables);
             }
 
@@ -39882,6 +40362,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static Parser __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new Parser(native.ToPointer(), skipVTables);
             }
 
@@ -40092,6 +40574,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static CppParserOptions __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new CppParserOptions(native.ToPointer(), skipVTables);
             }
 
@@ -40174,8 +40658,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public string GetArguments(uint i)
             {
-                var __ret = __Internal.GetArguments(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetArguments(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddArguments(string s)
@@ -40190,8 +40674,8 @@ public void ClearArguments()
 
             public string GetCompilationOptions(uint i)
             {
-                var __ret = __Internal.GetCompilationOptions(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetCompilationOptions(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddCompilationOptions(string s)
@@ -40206,8 +40690,8 @@ public void ClearCompilationOptions()
 
             public string GetSourceFiles(uint i)
             {
-                var __ret = __Internal.GetSourceFiles(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSourceFiles(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSourceFiles(string s)
@@ -40222,8 +40706,8 @@ public void ClearSourceFiles()
 
             public string GetIncludeDirs(uint i)
             {
-                var __ret = __Internal.GetIncludeDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetIncludeDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddIncludeDirs(string s)
@@ -40238,8 +40722,8 @@ public void ClearIncludeDirs()
 
             public string GetSystemIncludeDirs(uint i)
             {
-                var __ret = __Internal.GetSystemIncludeDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSystemIncludeDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSystemIncludeDirs(string s)
@@ -40254,8 +40738,8 @@ public void ClearSystemIncludeDirs()
 
             public string GetDefines(uint i)
             {
-                var __ret = __Internal.GetDefines(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetDefines(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddDefines(string s)
@@ -40270,8 +40754,8 @@ public void ClearDefines()
 
             public string GetUndefines(uint i)
             {
-                var __ret = __Internal.GetUndefines(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetUndefines(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddUndefines(string s)
@@ -40286,8 +40770,8 @@ public void ClearUndefines()
 
             public string GetSupportedStdTypes(uint i)
             {
-                var __ret = __Internal.GetSupportedStdTypes(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSupportedStdTypes(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSupportedStdTypes(string s)
@@ -40302,8 +40786,8 @@ public void ClearSupportedStdTypes()
 
             public string GetSupportedFunctionTemplates(uint i)
             {
-                var __ret = __Internal.GetSupportedFunctionTemplates(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSupportedFunctionTemplates(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSupportedFunctionTemplates(string s)
@@ -40465,9 +40949,9 @@ public string ClangVersion
             {
                 get
                 {
-                    var __ret = new global::Std.BasicString.__Internalc__N_std_S_basic_string__C___N_std_S_char_traits__C___N_std_S_allocator__C();
-                    __Internal.GetClangVersion(__Instance, new IntPtr(&__ret));
-                    var __basicStringRet0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__CreateInstance(new __IntPtr(&__ret));
+                    var ___ret = new global::Std.BasicString.__Internalc__N_std_S_basic_string__C___N_std_S_char_traits__C___N_std_S_allocator__C();
+                    __Internal.GetClangVersion(__Instance, new IntPtr(&___ret));
+                    var __basicStringRet0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__CreateInstance(new __IntPtr(&___ret));
                     var __retString0 = global::Std.BasicStringExtensions.Data(__basicStringRet0);
                     __basicStringRet0.Dispose();
                     return __retString0;
@@ -40478,8 +40962,8 @@ public uint ArgumentsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetArgumentsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetArgumentsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40487,8 +40971,8 @@ public uint CompilationOptionsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetCompilationOptionsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetCompilationOptionsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40496,8 +40980,8 @@ public uint SourceFilesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSourceFilesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSourceFilesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40505,8 +40989,8 @@ public uint IncludeDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetIncludeDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetIncludeDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40514,8 +40998,8 @@ public uint SystemIncludeDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSystemIncludeDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSystemIncludeDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40523,8 +41007,8 @@ public uint DefinesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetDefinesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetDefinesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40532,8 +41016,8 @@ public uint UndefinesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetUndefinesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetUndefinesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40541,8 +41025,8 @@ public uint SupportedStdTypesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSupportedStdTypesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSupportedStdTypesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40550,8 +41034,8 @@ public uint SupportedFunctionTemplatesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSupportedFunctionTemplatesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSupportedFunctionTemplatesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -40631,6 +41115,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static CppLinkerOptions __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new CppLinkerOptions(native.ToPointer(), skipVTables);
             }
 
@@ -40713,8 +41199,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public string GetArguments(uint i)
             {
-                var __ret = __Internal.GetArguments(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetArguments(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddArguments(string s)
@@ -40729,8 +41215,8 @@ public void ClearArguments()
 
             public string GetLibraryDirs(uint i)
             {
-                var __ret = __Internal.GetLibraryDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetLibraryDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddLibraryDirs(string s)
@@ -40745,8 +41231,8 @@ public void ClearLibraryDirs()
 
             public string GetLibraries(uint i)
             {
-                var __ret = __Internal.GetLibraries(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetLibraries(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddLibraries(string s)
@@ -40763,8 +41249,8 @@ public uint ArgumentsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetArgumentsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetArgumentsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40772,8 +41258,8 @@ public uint LibraryDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibraryDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibraryDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40781,8 +41267,8 @@ public uint LibrariesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibrariesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibrariesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -40828,6 +41314,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserDiagnostic __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserDiagnostic(native.ToPointer(), skipVTables);
             }
 
@@ -41040,6 +41528,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserResult __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserResult(native.ToPointer(), skipVTables);
             }
 
@@ -41122,11 +41612,11 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public global::CppSharp.Parser.ParserDiagnostic GetDiagnostics(uint i)
             {
-                var __ret = new global::CppSharp.Parser.ParserDiagnostic.__Internal();
-                __Internal.GetDiagnostics(__Instance, new IntPtr(&__ret), i);
-                var ____ret = global::CppSharp.Parser.ParserDiagnostic.__CreateInstance(__ret);
-                global::CppSharp.Parser.ParserDiagnostic.__Internal.dtor(new __IntPtr(&__ret));
-                return ____ret;
+                var ___ret = new global::CppSharp.Parser.ParserDiagnostic.__Internal();
+                __Internal.GetDiagnostics(__Instance, new IntPtr(&___ret), i);
+                var _____ret = global::CppSharp.Parser.ParserDiagnostic.__CreateInstance(___ret);
+                global::CppSharp.Parser.ParserDiagnostic.__Internal.dtor(new __IntPtr(&___ret));
+                return _____ret;
             }
 
             public void AddDiagnostics(global::CppSharp.Parser.ParserDiagnostic s)
@@ -41144,8 +41634,8 @@ public void ClearDiagnostics()
 
             public global::CppSharp.Parser.AST.NativeLibrary GetLibraries(uint i)
             {
-                var __ret = __Internal.GetLibraries(__Instance, i);
-                var __result0 = global::CppSharp.Parser.AST.NativeLibrary.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.GetLibraries(__Instance, i);
+                var __result0 = global::CppSharp.Parser.AST.NativeLibrary.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41194,8 +41684,8 @@ public uint DiagnosticsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetDiagnosticsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetDiagnosticsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -41203,8 +41693,8 @@ public uint LibrariesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibrariesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibrariesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -41253,6 +41743,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ClangParser __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ClangParser(native.ToPointer(), skipVTables);
             }
 
@@ -41330,16 +41822,16 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
             public static global::CppSharp.Parser.ParserResult ParseHeader(global::CppSharp.Parser.CppParserOptions Opts)
             {
                 var __arg0 = Opts is null ? __IntPtr.Zero : Opts.__Instance;
-                var __ret = __Internal.ParseHeader(__arg0);
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.ParseHeader(__arg0);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
             public static global::CppSharp.Parser.ParserResult ParseLibrary(global::CppSharp.Parser.CppLinkerOptions Opts)
             {
                 var __arg0 = Opts is null ? __IntPtr.Zero : Opts.__Instance;
-                var __ret = __Internal.ParseLibrary(__arg0);
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.ParseLibrary(__arg0);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41350,9 +41842,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString2 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString2, File);
                 var __arg2 = __basicString2.__Instance;
-                var __ret = __Internal.Build(__arg0, __arg1, __arg2, Last);
+                var ___ret = __Internal.Build(__arg0, __arg1, __arg2, Last);
                 __basicString2.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41362,9 +41854,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString1 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString1, File);
                 var __arg1 = __basicString1.__Instance;
-                var __ret = __Internal.Compile(__arg0, __arg1);
+                var ___ret = __Internal.Compile(__arg0, __arg1);
                 __basicString1.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41375,9 +41867,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString2 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString2, File);
                 var __arg2 = __basicString2.__Instance;
-                var __ret = __Internal.Link(__arg0, __arg1, __arg2, Last);
+                var ___ret = __Internal.Link(__arg0, __arg1, __arg2, Last);
                 __basicString2.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
         }
diff --git a/src/CppParser/Bindings/CSharp/i686-pc-win32-msvc/Std.cs b/src/CppParser/Bindings/CSharp/i686-pc-win32-msvc/Std.cs
index a6427be1e..7ebca0dad 100644
--- a/src/CppParser/Bindings/CSharp/i686-pc-win32-msvc/Std.cs
+++ b/src/CppParser/Bindings/CSharp/i686-pc-win32-msvc/Std.cs
@@ -15,6 +15,8 @@
 
 [assembly:InternalsVisibleTo("CppSharp.CppParser")]
 
+#pragma warning disable CS0109 // Member does not hide an inherited member; new keyword is not required
+
 namespace Std
 {
     namespace Vector
@@ -99,6 +101,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static Allocator<_Ty> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new Allocator<_Ty>(native.ToPointer(), skipVTables);
         }
 
@@ -167,15 +171,6 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 return;
             NativeToManagedMap.TryRemove(__Instance, out _);
             DisposePartial(disposing);
-            if (callNativeDtor)
-            {
-                var ___Ty = typeof(_Ty);
-                if (___Ty.IsAssignableFrom(typeof(sbyte)))
-                {
-                    return;
-                }
-                throw new ArgumentOutOfRangeException("_Ty", string.Join(", ", new[] { typeof(_Ty).FullName }), "global::Std.Allocator<_Ty> maps a C++ template class and therefore it only supports a limited set of types and their subclasses: <sbyte>.");
-            }
             if (__ownsNativeInstance)
                 Marshal.FreeHGlobal(__Instance);
             __Instance = IntPtr.Zero;
@@ -243,6 +238,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static BasicString<_Elem, _Traits, _Alloc> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new BasicString<_Elem, _Traits, _Alloc>(native.ToPointer(), skipVTables);
         }
 
@@ -389,6 +386,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static CharTraits<_Elem> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new CharTraits<_Elem>(native.ToPointer(), skipVTables);
         }
 
@@ -463,16 +462,16 @@ public partial struct __Internal
         public static global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> Assign(this global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> @this, string _Ptr)
         {
             var __arg0 = @this is null ? __IntPtr.Zero : @this.__Instance;
-            var __ret = __Internal.Assign(__arg0, _Ptr);
-            var __result0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__GetOrCreateInstance(__ret, false);
+            var ___ret = __Internal.Assign(__arg0, _Ptr);
+            var __result0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__GetOrCreateInstance(___ret, false);
             return __result0;
         }
 
         public static string Data(this global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> @this)
         {
             var __arg0 = @this is null ? __IntPtr.Zero : @this.__Instance;
-            var __ret = __Internal.Data(__arg0);
-            return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+            var ___ret = __Internal.Data(__arg0);
+            return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
         }
     }
 }
diff --git a/src/CppParser/Bindings/CSharp/x86_64-apple-darwin12.4.0/CppSharp.CppParser-symbols.cpp b/src/CppParser/Bindings/CSharp/x86_64-apple-darwin12.4.0/CppSharp.CppParser-symbols.cpp
index 0ac2c5a0e..38c9d198b 100644
--- a/src/CppParser/Bindings/CSharp/x86_64-apple-darwin12.4.0/CppSharp.CppParser-symbols.cpp
+++ b/src/CppParser/Bindings/CSharp/x86_64-apple-darwin12.4.0/CppSharp.CppParser-symbols.cpp
@@ -35,7 +35,6 @@ class CppSharp::CppParser::AST::InlineCommandComment& (CppSharp::CppParser::AST:
 extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_InlineCommandComment__InlineCommandComment(CppSharp::CppParser::AST::InlineCommandComment*__instance) { __instance->~InlineCommandComment(); }
 class CppSharp::CppParser::AST::HTMLTagComment& (CppSharp::CppParser::AST::HTMLTagComment::*_15)(class CppSharp::CppParser::AST::HTMLTagComment&&) = &CppSharp::CppParser::AST::HTMLTagComment::operator=;
 class CppSharp::CppParser::AST::HTMLStartTagComment::Attribute& (CppSharp::CppParser::AST::HTMLStartTagComment::Attribute::*_16)(const class CppSharp::CppParser::AST::HTMLStartTagComment::Attribute&) = &CppSharp::CppParser::AST::HTMLStartTagComment::Attribute::operator=;
-extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment_S_Attribute__Attribute(CppSharp::CppParser::AST::HTMLStartTagComment::Attribute*__instance) { __instance->~Attribute(); }
 extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment_HTMLStartTagComment___1__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment(void* __instance, const CppSharp::CppParser::AST::HTMLStartTagComment& _0) { ::new (__instance) CppSharp::CppParser::AST::HTMLStartTagComment(_0); }
 class CppSharp::CppParser::AST::HTMLStartTagComment& (CppSharp::CppParser::AST::HTMLStartTagComment::*_17)(class CppSharp::CppParser::AST::HTMLStartTagComment&&) = &CppSharp::CppParser::AST::HTMLStartTagComment::operator=;
 extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment__HTMLStartTagComment(CppSharp::CppParser::AST::HTMLStartTagComment*__instance) { __instance->~HTMLStartTagComment(); }
diff --git a/src/CppParser/Bindings/CSharp/x86_64-apple-darwin12.4.0/CppSharp.CppParser.cs b/src/CppParser/Bindings/CSharp/x86_64-apple-darwin12.4.0/CppSharp.CppParser.cs
index 576edd3c1..fe3ab591a 100644
--- a/src/CppParser/Bindings/CSharp/x86_64-apple-darwin12.4.0/CppSharp.CppParser.cs
+++ b/src/CppParser/Bindings/CSharp/x86_64-apple-darwin12.4.0/CppSharp.CppParser.cs
@@ -13,6 +13,8 @@
 
 [assembly:InternalsVisibleTo("CppSharp.Parser")]
 
+#pragma warning disable CS0109 // Member does not hide an inherited member; new keyword is not required
+
 namespace CppSharp
 {
     namespace Parser
@@ -121,6 +123,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static NativeLibrary __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NativeLibrary(native.ToPointer(), skipVTables);
                 }
 
@@ -203,8 +207,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public string GetSymbols(uint i)
                 {
-                    var __ret = __Internal.GetSymbols(__Instance, i);
-                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                    var ___ret = __Internal.GetSymbols(__Instance, i);
+                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
                 }
 
                 public void AddSymbols(string s)
@@ -219,8 +223,8 @@ public void ClearSymbols()
 
                 public string GetDependencies(uint i)
                 {
-                    var __ret = __Internal.GetDependencies(__Instance, i);
-                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                    var ___ret = __Internal.GetDependencies(__Instance, i);
+                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
                 }
 
                 public void AddDependencies(string s)
@@ -264,8 +268,8 @@ public uint SymbolsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSymbolsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSymbolsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -273,8 +277,8 @@ public uint DependenciesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetDependenciesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetDependenciesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -313,6 +317,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Comment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Comment(native.ToPointer(), skipVTables);
                 }
 
@@ -426,6 +432,8 @@ public unsafe partial class BlockContentComment : global::CppSharp.Parser.AST.Co
 
                 internal static new BlockContentComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockContentComment(native.ToPointer(), skipVTables);
                 }
 
@@ -530,6 +538,8 @@ public unsafe partial class FullComment : global::CppSharp.Parser.AST.Comment, I
 
                 internal static new FullComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FullComment(native.ToPointer(), skipVTables);
                 }
 
@@ -607,8 +617,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BlockContentComment GetBlocks(uint i)
                 {
-                    var __ret = __Internal.GetBlocks(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.BlockContentComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetBlocks(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.BlockContentComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -630,8 +640,8 @@ public uint BlocksCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBlocksCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBlocksCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -656,6 +666,8 @@ public unsafe partial class InlineContentComment : global::CppSharp.Parser.AST.C
 
                 internal static new InlineContentComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InlineContentComment(native.ToPointer(), skipVTables);
                 }
 
@@ -774,6 +786,8 @@ public unsafe partial class ParagraphComment : global::CppSharp.Parser.AST.Block
 
                 internal static new ParagraphComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParagraphComment(native.ToPointer(), skipVTables);
                 }
 
@@ -851,8 +865,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.InlineContentComment GetContent(uint i)
                 {
-                    var __ret = __Internal.GetContent(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.InlineContentComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetContent(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.InlineContentComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -887,8 +901,8 @@ public uint ContentCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetContentCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetContentCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -965,6 +979,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Argument __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Argument(native.ToPointer(), skipVTables);
                     }
 
@@ -1062,6 +1078,8 @@ public string Text
 
                 internal static new BlockCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1148,11 +1166,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BlockCommandComment.Argument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.BlockCommandComment.Argument.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.BlockCommandComment.Argument.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.BlockCommandComment.Argument s)
@@ -1204,8 +1222,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1241,6 +1259,8 @@ public enum PassDirection : uint
 
                 internal static new ParamCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParamCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1378,6 +1398,8 @@ public unsafe partial class TParamCommandComment : global::CppSharp.Parser.AST.B
 
                 internal static new TParamCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TParamCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1455,8 +1477,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public uint GetPosition(uint i)
                 {
-                    var __ret = __Internal.GetPosition(__Instance, i);
-                    return __ret;
+                    var ___ret = __Internal.GetPosition(__Instance, i);
+                    return ___ret;
                 }
 
                 public void AddPosition(ref uint s)
@@ -1477,8 +1499,8 @@ public uint PositionCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetPositionCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetPositionCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1503,6 +1525,8 @@ public unsafe partial class VerbatimBlockLineComment : global::CppSharp.Parser.A
 
                 internal static new VerbatimBlockLineComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimBlockLineComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1628,6 +1652,8 @@ public unsafe partial class VerbatimBlockComment : global::CppSharp.Parser.AST.B
 
                 internal static new VerbatimBlockComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimBlockComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1705,8 +1731,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VerbatimBlockLineComment GetLines(uint i)
                 {
-                    var __ret = __Internal.GetLines(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.VerbatimBlockLineComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetLines(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.VerbatimBlockLineComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -1728,8 +1754,8 @@ public uint LinesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetLinesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetLinesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1757,6 +1783,8 @@ public unsafe partial class VerbatimLineComment : global::CppSharp.Parser.AST.Bl
 
                 internal static new VerbatimLineComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimLineComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1926,6 +1954,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Argument __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Argument(native.ToPointer(), skipVTables);
                     }
 
@@ -2023,6 +2053,8 @@ public string Text
 
                 internal static new InlineCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InlineCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2100,11 +2132,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.InlineCommandComment.Argument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.InlineCommandComment.Argument.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.InlineCommandComment.Argument.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.InlineCommandComment.Argument s)
@@ -2150,8 +2182,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -2176,6 +2208,8 @@ public unsafe partial class HTMLTagComment : global::CppSharp.Parser.AST.InlineC
 
                 internal static new HTMLTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2318,6 +2352,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Attribute __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Attribute(native.ToPointer(), skipVTables);
                     }
 
@@ -2429,6 +2465,8 @@ public string Value
 
                 internal static new HTMLStartTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLStartTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2506,11 +2544,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute GetAttributes(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal();
-                    __Internal.GetAttributes(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal();
+                    __Internal.GetAttributes(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddAttributes(global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute s)
@@ -2544,8 +2582,8 @@ public uint AttributesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetAttributesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetAttributesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -2571,6 +2609,8 @@ public unsafe partial class HTMLEndTagComment : global::CppSharp.Parser.AST.HTML
 
                 internal static new HTMLEndTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLEndTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2682,6 +2722,8 @@ public unsafe partial class TextComment : global::CppSharp.Parser.AST.InlineCont
 
                 internal static new TextComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TextComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2812,6 +2854,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static RawComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new RawComment(native.ToPointer(), skipVTables);
                 }
 
@@ -3070,6 +3114,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static SourceRange __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new SourceRange(native.ToPointer(), skipVTables);
             }
 
@@ -3292,6 +3338,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Type __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Type(native.ToPointer(), skipVTables);
                 }
 
@@ -3435,6 +3483,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static TypeQualifiers __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeQualifiers(native.ToPointer(), skipVTables);
                 }
 
@@ -3584,6 +3634,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static QualifiedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new QualifiedType(native.ToPointer(), skipVTables);
                 }
 
@@ -3707,6 +3759,8 @@ public unsafe partial class TagType : global::CppSharp.Parser.AST.Type, IDisposa
 
                 internal static new TagType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TagType(native.ToPointer(), skipVTables);
                 }
 
@@ -3811,6 +3865,8 @@ public enum ArraySize
 
                 internal static new ArrayType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayType(native.ToPointer(), skipVTables);
                 }
 
@@ -3962,6 +4018,8 @@ public unsafe partial class FunctionType : global::CppSharp.Parser.AST.Type, IDi
 
                 internal static new FunctionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionType(native.ToPointer(), skipVTables);
                 }
 
@@ -4039,8 +4097,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Parameter GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -4103,8 +4161,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -4136,6 +4194,8 @@ public enum TypeModifier
 
                 internal static new PointerType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PointerType(native.ToPointer(), skipVTables);
                 }
 
@@ -4243,6 +4303,8 @@ public unsafe partial class MemberPointerType : global::CppSharp.Parser.AST.Type
 
                 internal static new MemberPointerType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MemberPointerType(native.ToPointer(), skipVTables);
                 }
 
@@ -4337,6 +4399,8 @@ public unsafe partial class TypedefType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new TypedefType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefType(native.ToPointer(), skipVTables);
                 }
 
@@ -4431,6 +4495,8 @@ public unsafe partial class AttributedType : global::CppSharp.Parser.AST.Type, I
 
                 internal static new AttributedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AttributedType(native.ToPointer(), skipVTables);
                 }
 
@@ -4542,6 +4608,8 @@ public unsafe partial class DecayedType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new DecayedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DecayedType(native.ToPointer(), skipVTables);
                 }
 
@@ -4697,6 +4765,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static TemplateArgument __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateArgument(native.ToPointer(), skipVTables);
                 }
 
@@ -4863,6 +4933,8 @@ public unsafe partial class TemplateSpecializationType : global::CppSharp.Parser
 
                 internal static new TemplateSpecializationType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateSpecializationType(native.ToPointer(), skipVTables);
                 }
 
@@ -4940,9 +5012,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -4991,8 +5063,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -5031,6 +5103,8 @@ public unsafe partial class DependentTemplateSpecializationType : global::CppSha
 
                 internal static new DependentTemplateSpecializationType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentTemplateSpecializationType(native.ToPointer(), skipVTables);
                 }
 
@@ -5108,9 +5182,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -5145,8 +5219,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -5175,6 +5249,8 @@ public unsafe partial class TemplateParameterType : global::CppSharp.Parser.AST.
 
                 internal static new TemplateParameterType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameterType(native.ToPointer(), skipVTables);
                 }
 
@@ -5323,6 +5399,8 @@ public unsafe partial class TemplateParameterSubstitutionType : global::CppSharp
 
                 internal static new TemplateParameterSubstitutionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameterSubstitutionType(native.ToPointer(), skipVTables);
                 }
 
@@ -5432,6 +5510,8 @@ public unsafe partial class InjectedClassNameType : global::CppSharp.Parser.AST.
 
                 internal static new InjectedClassNameType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InjectedClassNameType(native.ToPointer(), skipVTables);
                 }
 
@@ -5544,6 +5624,8 @@ public unsafe partial class DependentNameType : global::CppSharp.Parser.AST.Type
 
                 internal static new DependentNameType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentNameType(native.ToPointer(), skipVTables);
                 }
 
@@ -5666,6 +5748,8 @@ public unsafe partial class PackExpansionType : global::CppSharp.Parser.AST.Type
 
                 internal static new PackExpansionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PackExpansionType(native.ToPointer(), skipVTables);
                 }
 
@@ -5746,6 +5830,8 @@ public unsafe partial class UnaryTransformType : global::CppSharp.Parser.AST.Typ
 
                 internal static new UnaryTransformType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryTransformType(native.ToPointer(), skipVTables);
                 }
 
@@ -5855,6 +5941,8 @@ public unsafe partial class UnresolvedUsingType : global::CppSharp.Parser.AST.Ty
 
                 internal static new UnresolvedUsingType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedUsingType(native.ToPointer(), skipVTables);
                 }
 
@@ -5949,6 +6037,8 @@ public unsafe partial class VectorType : global::CppSharp.Parser.AST.Type, IDisp
 
                 internal static new VectorType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VectorType(native.ToPointer(), skipVTables);
                 }
 
@@ -6056,6 +6146,8 @@ public unsafe partial class BuiltinType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new BuiltinType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BuiltinType(native.ToPointer(), skipVTables);
                 }
 
@@ -6418,6 +6510,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Declaration __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Declaration(native.ToPointer(), skipVTables);
                 }
 
@@ -6500,8 +6594,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.PreprocessedEntity GetPreprocessedEntities(uint i)
                 {
-                    var __ret = __Internal.GetPreprocessedEntities(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.PreprocessedEntity.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetPreprocessedEntities(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.PreprocessedEntity.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -6521,8 +6615,8 @@ public void ClearPreprocessedEntities()
 
                 public global::CppSharp.Parser.AST.Declaration GetRedeclarations(uint i)
                 {
-                    var __ret = __Internal.GetRedeclarations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetRedeclarations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -6815,8 +6909,8 @@ public uint PreprocessedEntitiesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetPreprocessedEntitiesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetPreprocessedEntitiesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -6824,8 +6918,8 @@ public uint RedeclarationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetRedeclarationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetRedeclarationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -6989,6 +7083,8 @@ public unsafe partial class DeclarationContext : global::CppSharp.Parser.AST.Dec
 
                 internal static new DeclarationContext __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclarationContext(native.ToPointer(), skipVTables);
                 }
 
@@ -7066,8 +7162,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Namespace GetNamespaces(uint i)
                 {
-                    var __ret = __Internal.GetNamespaces(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Namespace.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetNamespaces(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Namespace.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7087,8 +7183,8 @@ public void ClearNamespaces()
 
                 public global::CppSharp.Parser.AST.Enumeration GetEnums(uint i)
                 {
-                    var __ret = __Internal.GetEnums(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetEnums(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7108,8 +7204,8 @@ public void ClearEnums()
 
                 public global::CppSharp.Parser.AST.Function GetFunctions(uint i)
                 {
-                    var __ret = __Internal.GetFunctions(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Function.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFunctions(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Function.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7129,8 +7225,8 @@ public void ClearFunctions()
 
                 public global::CppSharp.Parser.AST.Class GetClasses(uint i)
                 {
-                    var __ret = __Internal.GetClasses(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Class.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetClasses(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Class.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7150,8 +7246,8 @@ public void ClearClasses()
 
                 public global::CppSharp.Parser.AST.Template GetTemplates(uint i)
                 {
-                    var __ret = __Internal.GetTemplates(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Template.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTemplates(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Template.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7171,8 +7267,8 @@ public void ClearTemplates()
 
                 public global::CppSharp.Parser.AST.TypedefDecl GetTypedefs(uint i)
                 {
-                    var __ret = __Internal.GetTypedefs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TypedefDecl.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTypedefs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TypedefDecl.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7192,8 +7288,8 @@ public void ClearTypedefs()
 
                 public global::CppSharp.Parser.AST.TypeAlias GetTypeAliases(uint i)
                 {
-                    var __ret = __Internal.GetTypeAliases(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TypeAlias.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTypeAliases(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TypeAlias.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7213,8 +7309,8 @@ public void ClearTypeAliases()
 
                 public global::CppSharp.Parser.AST.Variable GetVariables(uint i)
                 {
-                    var __ret = __Internal.GetVariables(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Variable.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetVariables(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Variable.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7234,8 +7330,8 @@ public void ClearVariables()
 
                 public global::CppSharp.Parser.AST.Friend GetFriends(uint i)
                 {
-                    var __ret = __Internal.GetFriends(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Friend.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFriends(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Friend.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7275,8 +7371,8 @@ public uint NamespacesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetNamespacesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetNamespacesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7284,8 +7380,8 @@ public uint EnumsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetEnumsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetEnumsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7293,8 +7389,8 @@ public uint FunctionsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFunctionsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFunctionsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7302,8 +7398,8 @@ public uint ClassesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetClassesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetClassesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7311,8 +7407,8 @@ public uint TemplatesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTemplatesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTemplatesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7320,8 +7416,8 @@ public uint TypedefsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTypedefsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTypedefsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7329,8 +7425,8 @@ public uint TypeAliasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTypeAliasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTypeAliasesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7338,8 +7434,8 @@ public uint VariablesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetVariablesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetVariablesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7347,8 +7443,8 @@ public uint FriendsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFriendsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFriendsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -7394,6 +7490,8 @@ public unsafe partial class TypedefNameDecl : global::CppSharp.Parser.AST.Declar
 
                 internal static new TypedefNameDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefNameDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -7531,6 +7629,8 @@ public unsafe partial class TypedefDecl : global::CppSharp.Parser.AST.TypedefNam
 
                 internal static new TypedefDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -7649,6 +7749,8 @@ public unsafe partial class TypeAlias : global::CppSharp.Parser.AST.TypedefNameD
 
                 internal static new TypeAlias __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeAlias(native.ToPointer(), skipVTables);
                 }
 
@@ -7780,6 +7882,8 @@ public unsafe partial class Friend : global::CppSharp.Parser.AST.Declaration, ID
 
                 internal static new Friend __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Friend(native.ToPointer(), skipVTables);
                 }
 
@@ -7909,6 +8013,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static StatementObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StatementObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8057,6 +8163,8 @@ public unsafe partial class ExpressionObsolete : global::CppSharp.Parser.AST.Sta
 
                 internal static new ExpressionObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExpressionObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8162,6 +8270,8 @@ public unsafe partial class BinaryOperatorObsolete : global::CppSharp.Parser.AST
 
                 internal static new BinaryOperatorObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryOperatorObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8324,6 +8434,8 @@ public unsafe partial class CallExprObsolete : global::CppSharp.Parser.AST.Expre
 
                 internal static new CallExprObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CallExprObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8406,8 +8518,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ExpressionObsolete GetArguments(uint i)
                 {
-                    var __ret = __Internal.GetArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -8429,8 +8541,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -8469,6 +8581,8 @@ public unsafe partial class CXXConstructExprObsolete : global::CppSharp.Parser.A
 
                 internal static new CXXConstructExprObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstructExprObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8551,8 +8665,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ExpressionObsolete GetArguments(uint i)
                 {
-                    var __ret = __Internal.GetArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -8574,8 +8688,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -8626,6 +8740,8 @@ public unsafe partial class Parameter : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Parameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Parameter(native.ToPointer(), skipVTables);
                 }
 
@@ -8867,6 +8983,8 @@ public unsafe partial class Function : global::CppSharp.Parser.AST.DeclarationCo
 
                 internal static new Function __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Function(native.ToPointer(), skipVTables);
                 }
 
@@ -8944,8 +9062,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Parameter GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9224,8 +9342,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9324,6 +9442,8 @@ public unsafe partial class Method : global::CppSharp.Parser.AST.Function, IDisp
 
                 internal static new Method __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Method(native.ToPointer(), skipVTables);
                 }
 
@@ -9401,8 +9521,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Method GetOverriddenMethods(uint i)
                 {
-                    var __ret = __Internal.GetOverriddenMethods(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetOverriddenMethods(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9556,8 +9676,8 @@ public uint OverriddenMethodsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetOverriddenMethodsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetOverriddenMethodsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9680,6 +9800,8 @@ public unsafe partial class Item : global::CppSharp.Parser.AST.Declaration, IDis
 
                     internal static new Item __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Item(native.ToPointer(), skipVTables);
                     }
 
@@ -9785,6 +9907,8 @@ public ulong Value
 
                 internal static new Enumeration __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Enumeration(native.ToPointer(), skipVTables);
                 }
 
@@ -9862,8 +9986,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Enumeration.Item GetItems(uint i)
                 {
-                    var __ret = __Internal.GetItems(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetItems(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9886,9 +10010,9 @@ public void ClearItems()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, Name);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindItemByName(__Instance, __arg0);
+                    var ___ret = __Internal.FindItemByName(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9937,8 +10061,8 @@ public uint ItemsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetItemsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetItemsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9987,6 +10111,8 @@ public unsafe partial class Variable : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Variable __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Variable(native.ToPointer(), skipVTables);
                 }
 
@@ -10156,6 +10282,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static BaseClassSpecifier __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BaseClassSpecifier(native.ToPointer(), skipVTables);
                 }
 
@@ -10329,6 +10457,8 @@ public unsafe partial class Field : global::CppSharp.Parser.AST.Declaration, IDi
 
                 internal static new Field __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Field(native.ToPointer(), skipVTables);
                 }
 
@@ -10500,6 +10630,8 @@ public unsafe partial class AccessSpecifierDecl : global::CppSharp.Parser.AST.De
 
                 internal static new AccessSpecifierDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AccessSpecifierDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -10612,6 +10744,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VTableComponent __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VTableComponent(native.ToPointer(), skipVTables);
                 }
 
@@ -10777,6 +10911,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VTableLayout __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VTableLayout(native.ToPointer(), skipVTables);
                 }
 
@@ -10859,8 +10995,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VTableComponent GetComponents(uint i)
                 {
-                    var __ret = __Internal.GetComponents(__Instance, i);
-                    return global::CppSharp.Parser.AST.VTableComponent.__CreateInstance(__ret);
+                    var ___ret = __Internal.GetComponents(__Instance, i);
+                    return global::CppSharp.Parser.AST.VTableComponent.__CreateInstance(___ret);
                 }
 
                 public void AddComponents(global::CppSharp.Parser.AST.VTableComponent s)
@@ -10880,8 +11016,8 @@ public uint ComponentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetComponentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetComponentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -10926,6 +11062,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VFTableInfo __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VFTableInfo(native.ToPointer(), skipVTables);
                 }
 
@@ -11101,6 +11239,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static LayoutField __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LayoutField(native.ToPointer(), skipVTables);
                 }
 
@@ -11275,6 +11415,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static LayoutBase __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LayoutBase(native.ToPointer(), skipVTables);
                 }
 
@@ -11466,6 +11608,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static ClassLayout __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassLayout(native.ToPointer(), skipVTables);
                 }
 
@@ -11548,11 +11692,11 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VFTableInfo GetVFTables(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.VFTableInfo.__Internal();
-                    __Internal.GetVFTables(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.VFTableInfo.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.VFTableInfo.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.VFTableInfo.__Internal();
+                    __Internal.GetVFTables(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.VFTableInfo.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.VFTableInfo.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddVFTables(global::CppSharp.Parser.AST.VFTableInfo s)
@@ -11570,11 +11714,11 @@ public void ClearVFTables()
 
                 public global::CppSharp.Parser.AST.LayoutField GetFields(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.LayoutField.__Internal();
-                    __Internal.GetFields(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.LayoutField.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.LayoutField.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.LayoutField.__Internal();
+                    __Internal.GetFields(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.LayoutField.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.LayoutField.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddFields(global::CppSharp.Parser.AST.LayoutField s)
@@ -11592,11 +11736,11 @@ public void ClearFields()
 
                 public global::CppSharp.Parser.AST.LayoutBase GetBases(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.LayoutBase.__Internal();
-                    __Internal.GetBases(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.LayoutBase.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.LayoutBase.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.LayoutBase.__Internal();
+                    __Internal.GetBases(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.LayoutBase.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.LayoutBase.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddBases(global::CppSharp.Parser.AST.LayoutBase s)
@@ -11722,8 +11866,8 @@ public uint VFTablesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetVFTablesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetVFTablesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -11731,8 +11875,8 @@ public uint FieldsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFieldsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFieldsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -11740,8 +11884,8 @@ public uint BasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBasesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -11861,6 +12005,8 @@ public unsafe partial class Class : global::CppSharp.Parser.AST.DeclarationConte
 
                 internal static new Class __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Class(native.ToPointer(), skipVTables);
                 }
 
@@ -11938,8 +12084,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BaseClassSpecifier GetBases(uint i)
                 {
-                    var __ret = __Internal.GetBases(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.BaseClassSpecifier.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetBases(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.BaseClassSpecifier.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -11959,8 +12105,8 @@ public void ClearBases()
 
                 public global::CppSharp.Parser.AST.Field GetFields(uint i)
                 {
-                    var __ret = __Internal.GetFields(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Field.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFields(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Field.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -11980,8 +12126,8 @@ public void ClearFields()
 
                 public global::CppSharp.Parser.AST.Method GetMethods(uint i)
                 {
-                    var __ret = __Internal.GetMethods(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetMethods(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12001,8 +12147,8 @@ public void ClearMethods()
 
                 public global::CppSharp.Parser.AST.AccessSpecifierDecl GetSpecifiers(uint i)
                 {
-                    var __ret = __Internal.GetSpecifiers(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.AccessSpecifierDecl.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecifiers(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.AccessSpecifierDecl.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12181,8 +12327,8 @@ public uint BasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBasesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12190,8 +12336,8 @@ public uint FieldsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFieldsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFieldsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12199,8 +12345,8 @@ public uint MethodsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetMethodsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetMethodsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12208,8 +12354,8 @@ public uint SpecifiersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecifiersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecifiersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -12271,6 +12417,8 @@ public unsafe partial class Template : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Template __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Template(native.ToPointer(), skipVTables);
                 }
 
@@ -12357,8 +12505,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Declaration GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12399,8 +12547,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -12447,6 +12595,8 @@ public unsafe partial class TypeAliasTemplate : global::CppSharp.Parser.AST.Temp
 
                 internal static new TypeAliasTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeAliasTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -12566,6 +12716,8 @@ public unsafe partial class TemplateParameter : global::CppSharp.Parser.AST.Decl
 
                 internal static new TemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12731,6 +12883,8 @@ public unsafe partial class TemplateTemplateParameter : global::CppSharp.Parser.
 
                 internal static new TemplateTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12890,6 +13044,8 @@ public unsafe partial class TypeTemplateParameter : global::CppSharp.Parser.AST.
 
                 internal static new TypeTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12983,7 +13139,7 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
             public unsafe partial class NonTypeTemplateParameter : global::CppSharp.Parser.AST.TemplateParameter, IDisposable
             {
-                [StructLayout(LayoutKind.Sequential, Size = 240)]
+                [StructLayout(LayoutKind.Sequential, Size = 256)]
                 public new partial struct __Internal
                 {
                     internal global::CppSharp.Parser.AST.DeclarationKind kind;
@@ -13030,6 +13186,8 @@ public unsafe partial class NonTypeTemplateParameter : global::CppSharp.Parser.A
 
                 internal static new NonTypeTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NonTypeTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -13249,6 +13407,8 @@ public unsafe partial class ClassTemplate : global::CppSharp.Parser.AST.Template
 
                 internal static new ClassTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -13326,8 +13486,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ClassTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13350,9 +13510,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13361,9 +13521,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplatePartialSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplatePartialSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13371,8 +13531,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13459,6 +13619,8 @@ public unsafe partial class ClassTemplateSpecialization : global::CppSharp.Parse
 
                 internal static new ClassTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -13536,9 +13698,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -13585,8 +13747,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13661,6 +13823,8 @@ public unsafe partial class ClassTemplatePartialSpecialization : global::CppShar
 
                 internal static new ClassTemplatePartialSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplatePartialSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -13795,6 +13959,8 @@ public unsafe partial class FunctionTemplate : global::CppSharp.Parser.AST.Templ
 
                 internal static new FunctionTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -13872,8 +14038,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.FunctionTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13896,9 +14062,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13906,8 +14072,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13964,6 +14130,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static FunctionTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14046,9 +14214,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -14109,8 +14277,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14176,6 +14344,8 @@ public unsafe partial class VarTemplate : global::CppSharp.Parser.AST.Template,
 
                 internal static new VarTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -14253,8 +14423,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VarTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14277,9 +14447,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14288,9 +14458,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplatePartialSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplatePartialSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14298,8 +14468,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14363,6 +14533,8 @@ public unsafe partial class VarTemplateSpecialization : global::CppSharp.Parser.
 
                 internal static new VarTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14440,9 +14612,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -14489,8 +14661,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14542,6 +14714,8 @@ public unsafe partial class VarTemplatePartialSpecialization : global::CppSharp.
 
                 internal static new VarTemplatePartialSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplatePartialSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14658,6 +14832,8 @@ public unsafe partial class UnresolvedUsingTypename : global::CppSharp.Parser.AS
 
                 internal static new UnresolvedUsingTypename __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedUsingTypename(native.ToPointer(), skipVTables);
                 }
 
@@ -14786,6 +14962,8 @@ public unsafe partial class Namespace : global::CppSharp.Parser.AST.DeclarationC
 
                 internal static new Namespace __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Namespace(native.ToPointer(), skipVTables);
                 }
 
@@ -14911,6 +15089,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static PreprocessedEntity __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PreprocessedEntity(native.ToPointer(), skipVTables);
                 }
 
@@ -15051,6 +15231,8 @@ public unsafe partial class MacroDefinition : global::CppSharp.Parser.AST.Prepro
 
                 internal static new MacroDefinition __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MacroDefinition(native.ToPointer(), skipVTables);
                 }
 
@@ -15205,6 +15387,8 @@ public unsafe partial class MacroExpansion : global::CppSharp.Parser.AST.Preproc
 
                 internal static new MacroExpansion __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MacroExpansion(native.ToPointer(), skipVTables);
                 }
 
@@ -15390,6 +15574,8 @@ public unsafe partial class TranslationUnit : global::CppSharp.Parser.AST.Namesp
 
                 internal static new TranslationUnit __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TranslationUnit(native.ToPointer(), skipVTables);
                 }
 
@@ -15467,8 +15653,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.MacroDefinition GetMacros(uint i)
                 {
-                    var __ret = __Internal.GetMacros(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.MacroDefinition.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetMacros(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.MacroDefinition.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -15517,8 +15703,8 @@ public uint MacrosCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetMacrosCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetMacrosCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -15575,6 +15761,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static ASTContext __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ASTContext(native.ToPointer(), skipVTables);
                 }
 
@@ -15660,16 +15848,16 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, File);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindOrCreateModule(__Instance, __arg0);
+                    var ___ret = __Internal.FindOrCreateModule(__Instance, __arg0);
                     __basicString0.Dispose(disposing: true, callNativeDtor:false);
-                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
                 public global::CppSharp.Parser.AST.TranslationUnit GetTranslationUnits(uint i)
                 {
-                    var __ret = __Internal.GetTranslationUnits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTranslationUnits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -15691,8 +15879,8 @@ public uint TranslationUnitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTranslationUnitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTranslationUnitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -15876,6 +16064,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Stmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Stmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16056,6 +16246,8 @@ public unsafe partial class DeclStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new DeclStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16133,8 +16325,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Declaration Getdecls(uint i)
                 {
-                    var __ret = __Internal.Getdecls(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getdecls(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -16183,8 +16375,8 @@ public uint GetdeclsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetdeclsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetdeclsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -16210,6 +16402,8 @@ public unsafe partial class NullStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new NullStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NullStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16335,6 +16529,8 @@ public unsafe partial class CompoundStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new CompoundStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16412,8 +16608,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Stmt Getbody(uint i)
                 {
-                    var __ret = __Internal.Getbody(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Stmt.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getbody(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Stmt.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -16515,8 +16711,8 @@ public uint GetbodyCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetbodyCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetbodyCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -16546,6 +16742,8 @@ public unsafe partial class SwitchCase : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SwitchCase __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SwitchCase(native.ToPointer(), skipVTables);
                 }
 
@@ -16685,6 +16883,8 @@ public unsafe partial class CaseStmt : global::CppSharp.Parser.AST.SwitchCase, I
 
                 internal static new CaseStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CaseStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16833,6 +17033,8 @@ public unsafe partial class DefaultStmt : global::CppSharp.Parser.AST.SwitchCase
 
                 internal static new DefaultStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DefaultStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16927,6 +17129,8 @@ public unsafe partial class LabelStmt : global::CppSharp.Parser.AST.Stmt, IDispo
                 private bool __name_OwnsNativeMemory = false;
                 internal static new LabelStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LabelStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17060,6 +17264,8 @@ public unsafe partial class AttributedStmt : global::CppSharp.Parser.AST.Stmt, I
 
                 internal static new AttributedStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AttributedStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17176,6 +17382,8 @@ public unsafe partial class IfStmt : global::CppSharp.Parser.AST.Stmt, IDisposab
 
                 internal static new IfStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IfStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17422,6 +17630,8 @@ public unsafe partial class SwitchStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SwitchStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SwitchStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17612,6 +17822,8 @@ public unsafe partial class WhileStmt : global::CppSharp.Parser.AST.Stmt, IDispo
 
                 internal static new WhileStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new WhileStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17762,6 +17974,8 @@ public unsafe partial class DoStmt : global::CppSharp.Parser.AST.Stmt, IDisposab
 
                 internal static new DoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17914,6 +18128,8 @@ public unsafe partial class ForStmt : global::CppSharp.Parser.AST.Stmt, IDisposa
 
                 internal static new ForStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ForStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18102,6 +18318,8 @@ public unsafe partial class GotoStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new GotoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GotoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18208,6 +18426,8 @@ public unsafe partial class IndirectGotoStmt : global::CppSharp.Parser.AST.Stmt,
 
                 internal static new IndirectGotoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IndirectGotoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18326,6 +18546,8 @@ public unsafe partial class ContinueStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new ContinueStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ContinueStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18417,6 +18639,8 @@ public unsafe partial class BreakStmt : global::CppSharp.Parser.AST.Stmt, IDispo
 
                 internal static new BreakStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BreakStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18509,6 +18733,8 @@ public unsafe partial class ReturnStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new ReturnStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ReturnStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18652,6 +18878,8 @@ public unsafe partial class AsmStmt : global::CppSharp.Parser.AST.Stmt, IDisposa
 
                 internal static new AsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18738,8 +18966,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getinputs(uint i)
                 {
-                    var __ret = __Internal.Getinputs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getinputs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -18759,8 +18987,8 @@ public void Clearinputs()
 
                 public global::CppSharp.Parser.AST.Expr Getoutputs(uint i)
                 {
-                    var __ret = __Internal.Getoutputs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getoutputs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -18878,8 +19106,8 @@ public uint GetinputsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetinputsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetinputsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -18887,8 +19115,8 @@ public uint GetoutputsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetoutputsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetoutputsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -18970,6 +19198,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static AsmStringPiece __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new AsmStringPiece(native.ToPointer(), skipVTables);
                     }
 
@@ -19119,6 +19349,8 @@ public sbyte Modifier
 
                 internal static new GCCAsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GCCAsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19243,6 +19475,8 @@ public unsafe partial class MSAsmStmt : global::CppSharp.Parser.AST.AsmStmt, IDi
 
                 internal static new MSAsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSAsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19394,6 +19628,8 @@ public unsafe partial class SEHExceptStmt : global::CppSharp.Parser.AST.Stmt, ID
 
                 internal static new SEHExceptStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHExceptStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19514,6 +19750,8 @@ public unsafe partial class SEHFinallyStmt : global::CppSharp.Parser.AST.Stmt, I
 
                 internal static new SEHFinallyStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHFinallyStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19624,6 +19862,8 @@ public unsafe partial class SEHTryStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SEHTryStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHTryStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19784,6 +20024,8 @@ public unsafe partial class SEHLeaveStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new SEHLeaveStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHLeaveStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19937,6 +20179,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Capture __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Capture(native.ToPointer(), skipVTables);
                     }
 
@@ -20093,6 +20337,8 @@ public bool CapturesVariableArrayType
 
                 internal static new CapturedStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CapturedStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20170,8 +20416,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetcaptureInits(uint i)
                 {
-                    var __ret = __Internal.GetcaptureInits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetcaptureInits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -20220,8 +20466,8 @@ public uint GetcaptureInitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetcaptureInitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetcaptureInitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -20248,6 +20494,8 @@ public unsafe partial class CXXCatchStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new CXXCatchStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXCatchStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20370,6 +20618,8 @@ public unsafe partial class CXXTryStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new CXXTryStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTryStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20500,6 +20750,8 @@ public unsafe partial class CXXForRangeStmt : global::CppSharp.Parser.AST.Stmt,
 
                 internal static new CXXForRangeStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXForRangeStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20759,6 +21011,8 @@ public unsafe partial class MSDependentExistsStmt : global::CppSharp.Parser.AST.
 
                 internal static new MSDependentExistsStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSDependentExistsStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20949,6 +21203,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static CtorArgs __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new CtorArgs(native.ToPointer(), skipVTables);
                     }
 
@@ -21027,6 +21283,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new CoroutineBodyStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoroutineBodyStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -21296,6 +21554,8 @@ public enum SubStmt
 
                 internal static new CoreturnStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoreturnStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -21771,6 +22031,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Classification __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Classification(native.ToPointer(), skipVTables);
                     }
 
@@ -21953,6 +22215,8 @@ public bool IsModifiable
 
                 internal static new Expr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Expr(native.ToPointer(), skipVTables);
                 }
 
@@ -22248,6 +22512,8 @@ public unsafe partial class FullExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new FullExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FullExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22368,6 +22634,8 @@ public unsafe partial class ConstantExpr : global::CppSharp.Parser.AST.FullExpr,
 
                 internal static new ConstantExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConstantExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22462,6 +22730,8 @@ public unsafe partial class OpaqueValueExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new OpaqueValueExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OpaqueValueExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22605,6 +22875,8 @@ public unsafe partial class DeclRefExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new DeclRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22855,6 +23127,8 @@ public unsafe partial class IntegerLiteral : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new IntegerLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IntegerLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -22974,6 +23248,8 @@ public unsafe partial class FixedPointLiteral : global::CppSharp.Parser.AST.Expr
 
                 internal static new FixedPointLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FixedPointLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23103,6 +23379,8 @@ public enum CharacterKind
 
                 internal static new CharacterLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CharacterLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23236,6 +23514,8 @@ public unsafe partial class FloatingLiteral : global::CppSharp.Parser.AST.Expr,
 
                 internal static new FloatingLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FloatingLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23367,6 +23647,8 @@ public unsafe partial class ImaginaryLiteral : global::CppSharp.Parser.AST.Expr,
 
                 internal static new ImaginaryLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImaginaryLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23499,6 +23781,8 @@ public enum StringKind
 
                 internal static new StringLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StringLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23819,6 +24103,8 @@ public enum IdentKind
 
                 internal static new PredefinedExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PredefinedExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -23939,6 +24225,8 @@ public unsafe partial class ParenExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new ParenExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParenExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24081,6 +24369,8 @@ public unsafe partial class UnaryOperator : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new UnaryOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -24320,6 +24610,8 @@ public unsafe partial class OffsetOfExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new OffsetOfExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OffsetOfExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24470,6 +24762,8 @@ public unsafe partial class UnaryExprOrTypeTraitExpr : global::CppSharp.Parser.A
 
                 internal static new UnaryExprOrTypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryExprOrTypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24662,6 +24956,8 @@ public unsafe partial class ArraySubscriptExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArraySubscriptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArraySubscriptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24849,6 +25145,8 @@ public unsafe partial class CallExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new CallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24935,8 +25233,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -25070,8 +25368,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -25122,6 +25420,8 @@ public unsafe partial class MemberExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new MemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25386,6 +25686,8 @@ public unsafe partial class CompoundLiteralExpr : global::CppSharp.Parser.AST.Ex
 
                 internal static new CompoundLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25528,6 +25830,8 @@ public unsafe partial class CastExpr : global::CppSharp.Parser.AST.Expr, IDispos
                 private bool __castKindName_OwnsNativeMemory = false;
                 internal static new CastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25754,6 +26058,8 @@ public enum OnStack_t
 
                 internal static new ImplicitCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImplicitCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25869,6 +26175,8 @@ public unsafe partial class ExplicitCastExpr : global::CppSharp.Parser.AST.CastE
 
                 internal static new ExplicitCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExplicitCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25999,6 +26307,8 @@ public unsafe partial class CStyleCastExpr : global::CppSharp.Parser.AST.Explici
 
                 internal static new CStyleCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CStyleCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -26141,6 +26451,8 @@ public unsafe partial class BinaryOperator : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new BinaryOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26538,6 +26850,8 @@ public unsafe partial class CompoundAssignOperator : global::CppSharp.Parser.AST
 
                 internal static new CompoundAssignOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundAssignOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26685,6 +26999,8 @@ public unsafe partial class AbstractConditionalOperator : global::CppSharp.Parse
 
                 internal static new AbstractConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AbstractConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26865,6 +27181,8 @@ public unsafe partial class ConditionalOperator : global::CppSharp.Parser.AST.Ab
 
                 internal static new ConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26991,6 +27309,8 @@ public unsafe partial class BinaryConditionalOperator : global::CppSharp.Parser.
 
                 internal static new BinaryConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -27112,6 +27432,8 @@ public unsafe partial class AddrLabelExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new AddrLabelExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AddrLabelExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27232,6 +27554,8 @@ public unsafe partial class StmtExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new StmtExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StmtExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27366,6 +27690,8 @@ public unsafe partial class ShuffleVectorExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ShuffleVectorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ShuffleVectorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27499,6 +27825,8 @@ public unsafe partial class ConvertVectorExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ConvertVectorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConvertVectorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27638,6 +27966,8 @@ public unsafe partial class ChooseExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new ChooseExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ChooseExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27838,6 +28168,8 @@ public unsafe partial class GNUNullExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new GNUNullExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GNUNullExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27946,6 +28278,8 @@ public unsafe partial class VAArgExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new VAArgExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VAArgExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -28102,6 +28436,8 @@ public unsafe partial class InitListExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new InitListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InitListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -28400,6 +28736,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Designator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Designator(native.ToPointer(), skipVTables);
                     }
 
@@ -28654,6 +28992,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static FieldDesignator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new FieldDesignator(native.ToPointer(), skipVTables);
                     }
 
@@ -28762,6 +29102,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static ArrayOrRangeDesignator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new ArrayOrRangeDesignator(native.ToPointer(), skipVTables);
                     }
 
@@ -28840,6 +29182,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new DesignatedInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DesignatedInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29012,6 +29356,8 @@ public unsafe partial class NoInitExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new NoInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NoInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29105,6 +29451,8 @@ public unsafe partial class DesignatedInitUpdateExpr : global::CppSharp.Parser.A
 
                 internal static new DesignatedInitUpdateExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DesignatedInitUpdateExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29226,6 +29574,8 @@ public unsafe partial class ArrayInitLoopExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ArrayInitLoopExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayInitLoopExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29345,6 +29695,8 @@ public unsafe partial class ArrayInitIndexExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArrayInitIndexExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayInitIndexExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29436,6 +29788,8 @@ public unsafe partial class ImplicitValueInitExpr : global::CppSharp.Parser.AST.
 
                 internal static new ImplicitValueInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImplicitValueInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29530,6 +29884,8 @@ public unsafe partial class ParenListExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new ParenListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParenListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29668,6 +30024,8 @@ public unsafe partial class GenericSelectionExpr : global::CppSharp.Parser.AST.E
 
                 internal static new GenericSelectionExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GenericSelectionExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29870,6 +30228,8 @@ public unsafe partial class ExtVectorElementExpr : global::CppSharp.Parser.AST.E
 
                 internal static new ExtVectorElementExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExtVectorElementExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30029,6 +30389,8 @@ public unsafe partial class BlockExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new BlockExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30150,6 +30512,8 @@ public unsafe partial class AsTypeExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new AsTypeExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AsTypeExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30285,6 +30649,8 @@ public unsafe partial class PseudoObjectExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new PseudoObjectExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PseudoObjectExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30495,6 +30861,8 @@ public enum AtomicOp
 
                 internal static new AtomicExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AtomicExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30790,6 +31158,8 @@ public unsafe partial class TypoExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new TypoExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypoExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30897,6 +31267,8 @@ public unsafe partial class CXXOperatorCallExpr : global::CppSharp.Parser.AST.Ca
 
                 internal static new CXXOperatorCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXOperatorCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31072,6 +31444,8 @@ public unsafe partial class CXXMemberCallExpr : global::CppSharp.Parser.AST.Call
 
                 internal static new CXXMemberCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXMemberCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31222,6 +31596,8 @@ public unsafe partial class CUDAKernelCallExpr : global::CppSharp.Parser.AST.Cal
 
                 internal static new CUDAKernelCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CUDAKernelCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31361,6 +31737,8 @@ public unsafe partial class CXXNamedCastExpr : global::CppSharp.Parser.AST.Expli
                 private bool __castName_OwnsNativeMemory = false;
                 internal static new CXXNamedCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNamedCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31546,6 +31924,8 @@ public unsafe partial class CXXStaticCastExpr : global::CppSharp.Parser.AST.CXXN
 
                 internal static new CXXStaticCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXStaticCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31650,6 +32030,8 @@ public unsafe partial class CXXDynamicCastExpr : global::CppSharp.Parser.AST.CXX
 
                 internal static new CXXDynamicCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDynamicCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31766,6 +32148,8 @@ public unsafe partial class CXXReinterpretCastExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXReinterpretCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXReinterpretCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31869,6 +32253,8 @@ public unsafe partial class CXXConstCastExpr : global::CppSharp.Parser.AST.CXXNa
 
                 internal static new CXXConstCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31985,6 +32371,8 @@ public enum LiteralOperatorKind
 
                 internal static new UserDefinedLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UserDefinedLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -32136,6 +32524,8 @@ public unsafe partial class CXXBoolLiteralExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new CXXBoolLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXBoolLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32254,6 +32644,8 @@ public unsafe partial class CXXNullPtrLiteralExpr : global::CppSharp.Parser.AST.
 
                 internal static new CXXNullPtrLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNullPtrLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32359,6 +32751,8 @@ public unsafe partial class CXXStdInitializerListExpr : global::CppSharp.Parser.
 
                 internal static new CXXStdInitializerListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXStdInitializerListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32467,6 +32861,8 @@ public unsafe partial class CXXTypeidExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXTypeidExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTypeidExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32602,6 +32998,8 @@ public unsafe partial class MSPropertyRefExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new MSPropertyRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSPropertyRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32749,6 +33147,8 @@ public unsafe partial class MSPropertySubscriptExpr : global::CppSharp.Parser.AS
 
                 internal static new MSPropertySubscriptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSPropertySubscriptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32887,6 +33287,8 @@ public unsafe partial class CXXUuidofExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXUuidofExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXUuidofExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33039,6 +33441,8 @@ public unsafe partial class CXXThisExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new CXXThisExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXThisExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33159,6 +33563,8 @@ public unsafe partial class CXXThrowExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new CXXThrowExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXThrowExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33292,6 +33698,8 @@ public unsafe partial class CXXDefaultArgExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new CXXDefaultArgExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDefaultArgExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33412,6 +33820,8 @@ public unsafe partial class CXXDefaultInitExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new CXXDefaultInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDefaultInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33532,6 +33942,8 @@ public unsafe partial class CXXBindTemporaryExpr : global::CppSharp.Parser.AST.E
 
                 internal static new CXXBindTemporaryExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXBindTemporaryExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33672,6 +34084,8 @@ public enum ConstructionKind
 
                 internal static new CXXConstructExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstructExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33758,8 +34172,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -33892,8 +34306,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -33934,6 +34348,8 @@ public unsafe partial class CXXInheritedCtorInitExpr : global::CppSharp.Parser.A
 
                 internal static new CXXInheritedCtorInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXInheritedCtorInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34075,6 +34491,8 @@ public unsafe partial class CXXFunctionalCastExpr : global::CppSharp.Parser.AST.
 
                 internal static new CXXFunctionalCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXFunctionalCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34217,6 +34635,8 @@ public unsafe partial class CXXTemporaryObjectExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXTemporaryObjectExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTemporaryObjectExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34351,6 +34771,8 @@ public unsafe partial class LambdaExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new LambdaExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LambdaExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34428,8 +34850,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetcaptureInits(uint i)
                 {
-                    var __ret = __Internal.GetcaptureInits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetcaptureInits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -34572,8 +34994,8 @@ public uint GetcaptureInitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetcaptureInitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetcaptureInitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -34612,6 +35034,8 @@ public unsafe partial class CXXScalarValueInitExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXScalarValueInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXScalarValueInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34753,6 +35177,8 @@ public enum InitializationStyle
 
                 internal static new CXXNewExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNewExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34830,8 +35256,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetplacementArguments(uint i)
                 {
-                    var __ret = __Internal.GetplacementArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetplacementArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -35046,8 +35472,8 @@ public uint GetplacementArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetplacementArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetplacementArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -35091,6 +35517,8 @@ public unsafe partial class CXXDeleteExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXDeleteExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDeleteExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35272,6 +35700,8 @@ public unsafe partial class CXXPseudoDestructorExpr : global::CppSharp.Parser.AS
 
                 internal static new CXXPseudoDestructorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXPseudoDestructorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35472,6 +35902,8 @@ public unsafe partial class TypeTraitExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new TypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35592,6 +36024,8 @@ public unsafe partial class ArrayTypeTraitExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArrayTypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayTypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35727,6 +36161,8 @@ public unsafe partial class ExpressionTraitExpr : global::CppSharp.Parser.AST.Ex
 
                 internal static new ExpressionTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExpressionTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35886,6 +36322,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static FindResult __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new FindResult(native.ToPointer(), skipVTables);
                     }
 
@@ -35964,6 +36402,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new OverloadExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OverloadExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36183,6 +36623,8 @@ public unsafe partial class UnresolvedLookupExpr : global::CppSharp.Parser.AST.O
 
                 internal static new UnresolvedLookupExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedLookupExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36307,6 +36749,8 @@ public unsafe partial class DependentScopeDeclRefExpr : global::CppSharp.Parser.
 
                 internal static new DependentScopeDeclRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentScopeDeclRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36492,6 +36936,8 @@ public unsafe partial class ExprWithCleanups : global::CppSharp.Parser.AST.FullE
 
                 internal static new ExprWithCleanups __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExprWithCleanups(native.ToPointer(), skipVTables);
                 }
 
@@ -36630,6 +37076,8 @@ public unsafe partial class CXXUnresolvedConstructExpr : global::CppSharp.Parser
 
                 internal static new CXXUnresolvedConstructExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXUnresolvedConstructExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36707,8 +37155,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -36797,8 +37245,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -36849,6 +37297,8 @@ public unsafe partial class CXXDependentScopeMemberExpr : global::CppSharp.Parse
 
                 internal static new CXXDependentScopeMemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDependentScopeMemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37128,6 +37578,8 @@ public unsafe partial class UnresolvedMemberExpr : global::CppSharp.Parser.AST.O
 
                 internal static new UnresolvedMemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedMemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37315,6 +37767,8 @@ public unsafe partial class CXXNoexceptExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new CXXNoexceptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNoexceptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37435,6 +37889,8 @@ public unsafe partial class PackExpansionExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new PackExpansionExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PackExpansionExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37559,6 +38015,8 @@ public unsafe partial class SizeOfPackExpr : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new SizeOfPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SizeOfPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37731,6 +38189,8 @@ public unsafe partial class SubstNonTypeTemplateParmExpr : global::CppSharp.Pars
 
                 internal static new SubstNonTypeTemplateParmExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SubstNonTypeTemplateParmExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37851,6 +38311,8 @@ public unsafe partial class SubstNonTypeTemplateParmPackExpr : global::CppSharp.
 
                 internal static new SubstNonTypeTemplateParmPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SubstNonTypeTemplateParmPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37972,6 +38434,8 @@ public unsafe partial class FunctionParmPackExpr : global::CppSharp.Parser.AST.E
 
                 internal static new FunctionParmPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionParmPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38123,6 +38587,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static ExtraState __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new ExtraState(native.ToPointer(), skipVTables);
                     }
 
@@ -38201,6 +38667,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new MaterializeTemporaryExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MaterializeTemporaryExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38354,6 +38822,8 @@ public unsafe partial class CXXFoldExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new CXXFoldExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXFoldExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38571,6 +39041,8 @@ public enum SubExpr
 
                 internal static new CoroutineSuspendExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoroutineSuspendExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38767,6 +39239,8 @@ public unsafe partial class CoawaitExpr : global::CppSharp.Parser.AST.CoroutineS
 
                 internal static new CoawaitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoawaitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38888,6 +39362,8 @@ public unsafe partial class DependentCoawaitExpr : global::CppSharp.Parser.AST.E
 
                 internal static new DependentCoawaitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentCoawaitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -39027,6 +39503,8 @@ public unsafe partial class CoyieldExpr : global::CppSharp.Parser.AST.CoroutineS
 
                 internal static new CoyieldExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoyieldExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -39198,6 +39676,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserTargetInfo __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserTargetInfo(native.ToPointer(), skipVTables);
             }
 
@@ -39870,6 +40350,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static Parser __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new Parser(native.ToPointer(), skipVTables);
             }
 
@@ -40080,6 +40562,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static CppParserOptions __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new CppParserOptions(native.ToPointer(), skipVTables);
             }
 
@@ -40162,8 +40646,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public string GetArguments(uint i)
             {
-                var __ret = __Internal.GetArguments(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetArguments(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddArguments(string s)
@@ -40178,8 +40662,8 @@ public void ClearArguments()
 
             public string GetCompilationOptions(uint i)
             {
-                var __ret = __Internal.GetCompilationOptions(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetCompilationOptions(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddCompilationOptions(string s)
@@ -40194,8 +40678,8 @@ public void ClearCompilationOptions()
 
             public string GetSourceFiles(uint i)
             {
-                var __ret = __Internal.GetSourceFiles(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSourceFiles(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSourceFiles(string s)
@@ -40210,8 +40694,8 @@ public void ClearSourceFiles()
 
             public string GetIncludeDirs(uint i)
             {
-                var __ret = __Internal.GetIncludeDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetIncludeDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddIncludeDirs(string s)
@@ -40226,8 +40710,8 @@ public void ClearIncludeDirs()
 
             public string GetSystemIncludeDirs(uint i)
             {
-                var __ret = __Internal.GetSystemIncludeDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSystemIncludeDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSystemIncludeDirs(string s)
@@ -40242,8 +40726,8 @@ public void ClearSystemIncludeDirs()
 
             public string GetDefines(uint i)
             {
-                var __ret = __Internal.GetDefines(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetDefines(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddDefines(string s)
@@ -40258,8 +40742,8 @@ public void ClearDefines()
 
             public string GetUndefines(uint i)
             {
-                var __ret = __Internal.GetUndefines(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetUndefines(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddUndefines(string s)
@@ -40274,8 +40758,8 @@ public void ClearUndefines()
 
             public string GetSupportedStdTypes(uint i)
             {
-                var __ret = __Internal.GetSupportedStdTypes(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSupportedStdTypes(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSupportedStdTypes(string s)
@@ -40290,8 +40774,8 @@ public void ClearSupportedStdTypes()
 
             public string GetSupportedFunctionTemplates(uint i)
             {
-                var __ret = __Internal.GetSupportedFunctionTemplates(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSupportedFunctionTemplates(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSupportedFunctionTemplates(string s)
@@ -40453,9 +40937,9 @@ public string ClangVersion
             {
                 get
                 {
-                    var __ret = new global::Std.BasicString.__Internalc__N_std_N___1_S_basic_string__C___N_std_N___1_S_char_traits__C___N_std_N___1_S_allocator__C();
-                    __Internal.GetClangVersion(new IntPtr(&__ret), __Instance);
-                    var __basicStringRet0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__CreateInstance(new __IntPtr(&__ret));
+                    var ___ret = new global::Std.BasicString.__Internalc__N_std_N___1_S_basic_string__C___N_std_N___1_S_char_traits__C___N_std_N___1_S_allocator__C();
+                    __Internal.GetClangVersion(new IntPtr(&___ret), __Instance);
+                    var __basicStringRet0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__CreateInstance(new __IntPtr(&___ret));
                     var __retString0 = global::Std.BasicStringExtensions.Data(__basicStringRet0);
                     __basicStringRet0.Dispose();
                     return __retString0;
@@ -40466,8 +40950,8 @@ public uint ArgumentsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetArgumentsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetArgumentsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40475,8 +40959,8 @@ public uint CompilationOptionsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetCompilationOptionsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetCompilationOptionsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40484,8 +40968,8 @@ public uint SourceFilesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSourceFilesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSourceFilesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40493,8 +40977,8 @@ public uint IncludeDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetIncludeDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetIncludeDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40502,8 +40986,8 @@ public uint SystemIncludeDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSystemIncludeDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSystemIncludeDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40511,8 +40995,8 @@ public uint DefinesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetDefinesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetDefinesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40520,8 +41004,8 @@ public uint UndefinesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetUndefinesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetUndefinesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40529,8 +41013,8 @@ public uint SupportedStdTypesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSupportedStdTypesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSupportedStdTypesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40538,8 +41022,8 @@ public uint SupportedFunctionTemplatesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSupportedFunctionTemplatesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSupportedFunctionTemplatesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -40619,6 +41103,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static CppLinkerOptions __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new CppLinkerOptions(native.ToPointer(), skipVTables);
             }
 
@@ -40701,8 +41187,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public string GetArguments(uint i)
             {
-                var __ret = __Internal.GetArguments(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetArguments(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddArguments(string s)
@@ -40717,8 +41203,8 @@ public void ClearArguments()
 
             public string GetLibraryDirs(uint i)
             {
-                var __ret = __Internal.GetLibraryDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetLibraryDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddLibraryDirs(string s)
@@ -40733,8 +41219,8 @@ public void ClearLibraryDirs()
 
             public string GetLibraries(uint i)
             {
-                var __ret = __Internal.GetLibraries(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetLibraries(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddLibraries(string s)
@@ -40751,8 +41237,8 @@ public uint ArgumentsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetArgumentsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetArgumentsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40760,8 +41246,8 @@ public uint LibraryDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibraryDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibraryDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40769,8 +41255,8 @@ public uint LibrariesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibrariesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibrariesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -40816,6 +41302,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserDiagnostic __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserDiagnostic(native.ToPointer(), skipVTables);
             }
 
@@ -41028,6 +41516,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserResult __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserResult(native.ToPointer(), skipVTables);
             }
 
@@ -41110,11 +41600,11 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public global::CppSharp.Parser.ParserDiagnostic GetDiagnostics(uint i)
             {
-                var __ret = new global::CppSharp.Parser.ParserDiagnostic.__Internal();
-                __Internal.GetDiagnostics(new IntPtr(&__ret), __Instance, i);
-                var ____ret = global::CppSharp.Parser.ParserDiagnostic.__CreateInstance(__ret);
-                global::CppSharp.Parser.ParserDiagnostic.__Internal.dtor(new __IntPtr(&__ret));
-                return ____ret;
+                var ___ret = new global::CppSharp.Parser.ParserDiagnostic.__Internal();
+                __Internal.GetDiagnostics(new IntPtr(&___ret), __Instance, i);
+                var _____ret = global::CppSharp.Parser.ParserDiagnostic.__CreateInstance(___ret);
+                global::CppSharp.Parser.ParserDiagnostic.__Internal.dtor(new __IntPtr(&___ret));
+                return _____ret;
             }
 
             public void AddDiagnostics(global::CppSharp.Parser.ParserDiagnostic s)
@@ -41132,8 +41622,8 @@ public void ClearDiagnostics()
 
             public global::CppSharp.Parser.AST.NativeLibrary GetLibraries(uint i)
             {
-                var __ret = __Internal.GetLibraries(__Instance, i);
-                var __result0 = global::CppSharp.Parser.AST.NativeLibrary.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.GetLibraries(__Instance, i);
+                var __result0 = global::CppSharp.Parser.AST.NativeLibrary.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41182,8 +41672,8 @@ public uint DiagnosticsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetDiagnosticsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetDiagnosticsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -41191,8 +41681,8 @@ public uint LibrariesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibrariesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibrariesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -41241,6 +41731,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ClangParser __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ClangParser(native.ToPointer(), skipVTables);
             }
 
@@ -41318,16 +41810,16 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
             public static global::CppSharp.Parser.ParserResult ParseHeader(global::CppSharp.Parser.CppParserOptions Opts)
             {
                 var __arg0 = Opts is null ? __IntPtr.Zero : Opts.__Instance;
-                var __ret = __Internal.ParseHeader(__arg0);
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.ParseHeader(__arg0);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
             public static global::CppSharp.Parser.ParserResult ParseLibrary(global::CppSharp.Parser.CppLinkerOptions Opts)
             {
                 var __arg0 = Opts is null ? __IntPtr.Zero : Opts.__Instance;
-                var __ret = __Internal.ParseLibrary(__arg0);
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.ParseLibrary(__arg0);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41338,9 +41830,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString2 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString2, File);
                 var __arg2 = __basicString2.__Instance;
-                var __ret = __Internal.Build(__arg0, __arg1, __arg2, Last);
+                var ___ret = __Internal.Build(__arg0, __arg1, __arg2, Last);
                 __basicString2.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41350,9 +41842,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString1 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString1, File);
                 var __arg1 = __basicString1.__Instance;
-                var __ret = __Internal.Compile(__arg0, __arg1);
+                var ___ret = __Internal.Compile(__arg0, __arg1);
                 __basicString1.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41363,9 +41855,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString2 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString2, File);
                 var __arg2 = __basicString2.__Instance;
-                var __ret = __Internal.Link(__arg0, __arg1, __arg2, Last);
+                var ___ret = __Internal.Link(__arg0, __arg1, __arg2, Last);
                 __basicString2.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
         }
diff --git a/src/CppParser/Bindings/CSharp/x86_64-apple-darwin12.4.0/Std.cs b/src/CppParser/Bindings/CSharp/x86_64-apple-darwin12.4.0/Std.cs
index c3b49d4bb..086462296 100644
--- a/src/CppParser/Bindings/CSharp/x86_64-apple-darwin12.4.0/Std.cs
+++ b/src/CppParser/Bindings/CSharp/x86_64-apple-darwin12.4.0/Std.cs
@@ -15,6 +15,8 @@
 
 [assembly:InternalsVisibleTo("CppSharp.CppParser")]
 
+#pragma warning disable CS0109 // Member does not hide an inherited member; new keyword is not required
+
 namespace Std
 {
 }
@@ -86,6 +88,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static Allocator<_Tp> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new Allocator<_Tp>(native.ToPointer(), skipVTables);
         }
 
@@ -231,6 +235,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static CharTraits<_CharT> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new CharTraits<_CharT>(native.ToPointer(), skipVTables);
         }
 
@@ -418,6 +424,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static BasicString<_CharT, _Traits, _Allocator> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new BasicString<_CharT, _Traits, _Allocator>(native.ToPointer(), skipVTables);
         }
 
@@ -520,16 +528,16 @@ public partial struct __Internal
         public static global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> Assign(this global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> @this, string __s)
         {
             var __arg0 = @this is null ? __IntPtr.Zero : @this.__Instance;
-            var __ret = __Internal.Assign(__arg0, __s);
-            var __result0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__GetOrCreateInstance(__ret, false);
+            var ___ret = __Internal.Assign(__arg0, __s);
+            var __result0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__GetOrCreateInstance(___ret, false);
             return __result0;
         }
 
         public static string Data(this global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> @this)
         {
             var __arg0 = @this is null ? __IntPtr.Zero : @this.__Instance;
-            var __ret = __Internal.Data(__arg0);
-            return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+            var ___ret = __Internal.Data(__arg0);
+            return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
         }
     }
 }
diff --git a/src/CppParser/Bindings/CSharp/x86_64-linux-gnu-cxx11abi/CppSharp.CppParser-symbols.cpp b/src/CppParser/Bindings/CSharp/x86_64-linux-gnu-cxx11abi/CppSharp.CppParser-symbols.cpp
index 0ac2c5a0e..38c9d198b 100644
--- a/src/CppParser/Bindings/CSharp/x86_64-linux-gnu-cxx11abi/CppSharp.CppParser-symbols.cpp
+++ b/src/CppParser/Bindings/CSharp/x86_64-linux-gnu-cxx11abi/CppSharp.CppParser-symbols.cpp
@@ -35,7 +35,6 @@ class CppSharp::CppParser::AST::InlineCommandComment& (CppSharp::CppParser::AST:
 extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_InlineCommandComment__InlineCommandComment(CppSharp::CppParser::AST::InlineCommandComment*__instance) { __instance->~InlineCommandComment(); }
 class CppSharp::CppParser::AST::HTMLTagComment& (CppSharp::CppParser::AST::HTMLTagComment::*_15)(class CppSharp::CppParser::AST::HTMLTagComment&&) = &CppSharp::CppParser::AST::HTMLTagComment::operator=;
 class CppSharp::CppParser::AST::HTMLStartTagComment::Attribute& (CppSharp::CppParser::AST::HTMLStartTagComment::Attribute::*_16)(const class CppSharp::CppParser::AST::HTMLStartTagComment::Attribute&) = &CppSharp::CppParser::AST::HTMLStartTagComment::Attribute::operator=;
-extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment_S_Attribute__Attribute(CppSharp::CppParser::AST::HTMLStartTagComment::Attribute*__instance) { __instance->~Attribute(); }
 extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment_HTMLStartTagComment___1__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment(void* __instance, const CppSharp::CppParser::AST::HTMLStartTagComment& _0) { ::new (__instance) CppSharp::CppParser::AST::HTMLStartTagComment(_0); }
 class CppSharp::CppParser::AST::HTMLStartTagComment& (CppSharp::CppParser::AST::HTMLStartTagComment::*_17)(class CppSharp::CppParser::AST::HTMLStartTagComment&&) = &CppSharp::CppParser::AST::HTMLStartTagComment::operator=;
 extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment__HTMLStartTagComment(CppSharp::CppParser::AST::HTMLStartTagComment*__instance) { __instance->~HTMLStartTagComment(); }
diff --git a/src/CppParser/Bindings/CSharp/x86_64-linux-gnu-cxx11abi/CppSharp.CppParser.cs b/src/CppParser/Bindings/CSharp/x86_64-linux-gnu-cxx11abi/CppSharp.CppParser.cs
index 4c6201974..edb1b55cb 100644
--- a/src/CppParser/Bindings/CSharp/x86_64-linux-gnu-cxx11abi/CppSharp.CppParser.cs
+++ b/src/CppParser/Bindings/CSharp/x86_64-linux-gnu-cxx11abi/CppSharp.CppParser.cs
@@ -13,6 +13,8 @@
 
 [assembly:InternalsVisibleTo("CppSharp.Parser")]
 
+#pragma warning disable CS0109 // Member does not hide an inherited member; new keyword is not required
+
 namespace CppSharp
 {
     namespace Parser
@@ -121,6 +123,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static NativeLibrary __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NativeLibrary(native.ToPointer(), skipVTables);
                 }
 
@@ -203,8 +207,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public string GetSymbols(uint i)
                 {
-                    var __ret = __Internal.GetSymbols(__Instance, i);
-                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                    var ___ret = __Internal.GetSymbols(__Instance, i);
+                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
                 }
 
                 public void AddSymbols(string s)
@@ -219,8 +223,8 @@ public void ClearSymbols()
 
                 public string GetDependencies(uint i)
                 {
-                    var __ret = __Internal.GetDependencies(__Instance, i);
-                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                    var ___ret = __Internal.GetDependencies(__Instance, i);
+                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
                 }
 
                 public void AddDependencies(string s)
@@ -264,8 +268,8 @@ public uint SymbolsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSymbolsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSymbolsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -273,8 +277,8 @@ public uint DependenciesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetDependenciesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetDependenciesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -313,6 +317,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Comment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Comment(native.ToPointer(), skipVTables);
                 }
 
@@ -426,6 +432,8 @@ public unsafe partial class BlockContentComment : global::CppSharp.Parser.AST.Co
 
                 internal static new BlockContentComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockContentComment(native.ToPointer(), skipVTables);
                 }
 
@@ -530,6 +538,8 @@ public unsafe partial class FullComment : global::CppSharp.Parser.AST.Comment, I
 
                 internal static new FullComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FullComment(native.ToPointer(), skipVTables);
                 }
 
@@ -607,8 +617,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BlockContentComment GetBlocks(uint i)
                 {
-                    var __ret = __Internal.GetBlocks(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.BlockContentComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetBlocks(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.BlockContentComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -630,8 +640,8 @@ public uint BlocksCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBlocksCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBlocksCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -656,6 +666,8 @@ public unsafe partial class InlineContentComment : global::CppSharp.Parser.AST.C
 
                 internal static new InlineContentComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InlineContentComment(native.ToPointer(), skipVTables);
                 }
 
@@ -774,6 +786,8 @@ public unsafe partial class ParagraphComment : global::CppSharp.Parser.AST.Block
 
                 internal static new ParagraphComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParagraphComment(native.ToPointer(), skipVTables);
                 }
 
@@ -851,8 +865,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.InlineContentComment GetContent(uint i)
                 {
-                    var __ret = __Internal.GetContent(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.InlineContentComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetContent(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.InlineContentComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -887,8 +901,8 @@ public uint ContentCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetContentCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetContentCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -965,6 +979,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Argument __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Argument(native.ToPointer(), skipVTables);
                     }
 
@@ -1062,6 +1078,8 @@ public string Text
 
                 internal static new BlockCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1148,11 +1166,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BlockCommandComment.Argument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.BlockCommandComment.Argument.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.BlockCommandComment.Argument.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.BlockCommandComment.Argument s)
@@ -1204,8 +1222,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1241,6 +1259,8 @@ public enum PassDirection : uint
 
                 internal static new ParamCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParamCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1378,6 +1398,8 @@ public unsafe partial class TParamCommandComment : global::CppSharp.Parser.AST.B
 
                 internal static new TParamCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TParamCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1455,8 +1477,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public uint GetPosition(uint i)
                 {
-                    var __ret = __Internal.GetPosition(__Instance, i);
-                    return __ret;
+                    var ___ret = __Internal.GetPosition(__Instance, i);
+                    return ___ret;
                 }
 
                 public void AddPosition(ref uint s)
@@ -1477,8 +1499,8 @@ public uint PositionCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetPositionCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetPositionCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1503,6 +1525,8 @@ public unsafe partial class VerbatimBlockLineComment : global::CppSharp.Parser.A
 
                 internal static new VerbatimBlockLineComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimBlockLineComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1628,6 +1652,8 @@ public unsafe partial class VerbatimBlockComment : global::CppSharp.Parser.AST.B
 
                 internal static new VerbatimBlockComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimBlockComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1705,8 +1731,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VerbatimBlockLineComment GetLines(uint i)
                 {
-                    var __ret = __Internal.GetLines(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.VerbatimBlockLineComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetLines(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.VerbatimBlockLineComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -1728,8 +1754,8 @@ public uint LinesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetLinesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetLinesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1757,6 +1783,8 @@ public unsafe partial class VerbatimLineComment : global::CppSharp.Parser.AST.Bl
 
                 internal static new VerbatimLineComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimLineComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1926,6 +1954,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Argument __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Argument(native.ToPointer(), skipVTables);
                     }
 
@@ -2023,6 +2053,8 @@ public string Text
 
                 internal static new InlineCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InlineCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2100,11 +2132,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.InlineCommandComment.Argument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.InlineCommandComment.Argument.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.InlineCommandComment.Argument.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.InlineCommandComment.Argument s)
@@ -2150,8 +2182,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -2176,6 +2208,8 @@ public unsafe partial class HTMLTagComment : global::CppSharp.Parser.AST.InlineC
 
                 internal static new HTMLTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2318,6 +2352,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Attribute __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Attribute(native.ToPointer(), skipVTables);
                     }
 
@@ -2429,6 +2465,8 @@ public string Value
 
                 internal static new HTMLStartTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLStartTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2506,11 +2544,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute GetAttributes(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal();
-                    __Internal.GetAttributes(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal();
+                    __Internal.GetAttributes(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddAttributes(global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute s)
@@ -2544,8 +2582,8 @@ public uint AttributesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetAttributesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetAttributesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -2571,6 +2609,8 @@ public unsafe partial class HTMLEndTagComment : global::CppSharp.Parser.AST.HTML
 
                 internal static new HTMLEndTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLEndTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2682,6 +2722,8 @@ public unsafe partial class TextComment : global::CppSharp.Parser.AST.InlineCont
 
                 internal static new TextComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TextComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2812,6 +2854,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static RawComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new RawComment(native.ToPointer(), skipVTables);
                 }
 
@@ -3070,6 +3114,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static SourceRange __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new SourceRange(native.ToPointer(), skipVTables);
             }
 
@@ -3292,6 +3338,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Type __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Type(native.ToPointer(), skipVTables);
                 }
 
@@ -3435,6 +3483,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static TypeQualifiers __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeQualifiers(native.ToPointer(), skipVTables);
                 }
 
@@ -3584,6 +3634,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static QualifiedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new QualifiedType(native.ToPointer(), skipVTables);
                 }
 
@@ -3707,6 +3759,8 @@ public unsafe partial class TagType : global::CppSharp.Parser.AST.Type, IDisposa
 
                 internal static new TagType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TagType(native.ToPointer(), skipVTables);
                 }
 
@@ -3811,6 +3865,8 @@ public enum ArraySize
 
                 internal static new ArrayType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayType(native.ToPointer(), skipVTables);
                 }
 
@@ -3962,6 +4018,8 @@ public unsafe partial class FunctionType : global::CppSharp.Parser.AST.Type, IDi
 
                 internal static new FunctionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionType(native.ToPointer(), skipVTables);
                 }
 
@@ -4039,8 +4097,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Parameter GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -4103,8 +4161,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -4136,6 +4194,8 @@ public enum TypeModifier
 
                 internal static new PointerType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PointerType(native.ToPointer(), skipVTables);
                 }
 
@@ -4243,6 +4303,8 @@ public unsafe partial class MemberPointerType : global::CppSharp.Parser.AST.Type
 
                 internal static new MemberPointerType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MemberPointerType(native.ToPointer(), skipVTables);
                 }
 
@@ -4337,6 +4399,8 @@ public unsafe partial class TypedefType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new TypedefType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefType(native.ToPointer(), skipVTables);
                 }
 
@@ -4431,6 +4495,8 @@ public unsafe partial class AttributedType : global::CppSharp.Parser.AST.Type, I
 
                 internal static new AttributedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AttributedType(native.ToPointer(), skipVTables);
                 }
 
@@ -4542,6 +4608,8 @@ public unsafe partial class DecayedType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new DecayedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DecayedType(native.ToPointer(), skipVTables);
                 }
 
@@ -4697,6 +4765,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static TemplateArgument __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateArgument(native.ToPointer(), skipVTables);
                 }
 
@@ -4863,6 +4933,8 @@ public unsafe partial class TemplateSpecializationType : global::CppSharp.Parser
 
                 internal static new TemplateSpecializationType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateSpecializationType(native.ToPointer(), skipVTables);
                 }
 
@@ -4940,9 +5012,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -4991,8 +5063,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -5031,6 +5103,8 @@ public unsafe partial class DependentTemplateSpecializationType : global::CppSha
 
                 internal static new DependentTemplateSpecializationType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentTemplateSpecializationType(native.ToPointer(), skipVTables);
                 }
 
@@ -5108,9 +5182,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -5145,8 +5219,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -5175,6 +5249,8 @@ public unsafe partial class TemplateParameterType : global::CppSharp.Parser.AST.
 
                 internal static new TemplateParameterType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameterType(native.ToPointer(), skipVTables);
                 }
 
@@ -5323,6 +5399,8 @@ public unsafe partial class TemplateParameterSubstitutionType : global::CppSharp
 
                 internal static new TemplateParameterSubstitutionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameterSubstitutionType(native.ToPointer(), skipVTables);
                 }
 
@@ -5432,6 +5510,8 @@ public unsafe partial class InjectedClassNameType : global::CppSharp.Parser.AST.
 
                 internal static new InjectedClassNameType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InjectedClassNameType(native.ToPointer(), skipVTables);
                 }
 
@@ -5544,6 +5624,8 @@ public unsafe partial class DependentNameType : global::CppSharp.Parser.AST.Type
 
                 internal static new DependentNameType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentNameType(native.ToPointer(), skipVTables);
                 }
 
@@ -5666,6 +5748,8 @@ public unsafe partial class PackExpansionType : global::CppSharp.Parser.AST.Type
 
                 internal static new PackExpansionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PackExpansionType(native.ToPointer(), skipVTables);
                 }
 
@@ -5746,6 +5830,8 @@ public unsafe partial class UnaryTransformType : global::CppSharp.Parser.AST.Typ
 
                 internal static new UnaryTransformType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryTransformType(native.ToPointer(), skipVTables);
                 }
 
@@ -5855,6 +5941,8 @@ public unsafe partial class UnresolvedUsingType : global::CppSharp.Parser.AST.Ty
 
                 internal static new UnresolvedUsingType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedUsingType(native.ToPointer(), skipVTables);
                 }
 
@@ -5949,6 +6037,8 @@ public unsafe partial class VectorType : global::CppSharp.Parser.AST.Type, IDisp
 
                 internal static new VectorType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VectorType(native.ToPointer(), skipVTables);
                 }
 
@@ -6056,6 +6146,8 @@ public unsafe partial class BuiltinType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new BuiltinType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BuiltinType(native.ToPointer(), skipVTables);
                 }
 
@@ -6418,6 +6510,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Declaration __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Declaration(native.ToPointer(), skipVTables);
                 }
 
@@ -6500,8 +6594,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.PreprocessedEntity GetPreprocessedEntities(uint i)
                 {
-                    var __ret = __Internal.GetPreprocessedEntities(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.PreprocessedEntity.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetPreprocessedEntities(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.PreprocessedEntity.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -6521,8 +6615,8 @@ public void ClearPreprocessedEntities()
 
                 public global::CppSharp.Parser.AST.Declaration GetRedeclarations(uint i)
                 {
-                    var __ret = __Internal.GetRedeclarations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetRedeclarations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -6815,8 +6909,8 @@ public uint PreprocessedEntitiesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetPreprocessedEntitiesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetPreprocessedEntitiesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -6824,8 +6918,8 @@ public uint RedeclarationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetRedeclarationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetRedeclarationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -6989,6 +7083,8 @@ public unsafe partial class DeclarationContext : global::CppSharp.Parser.AST.Dec
 
                 internal static new DeclarationContext __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclarationContext(native.ToPointer(), skipVTables);
                 }
 
@@ -7066,8 +7162,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Namespace GetNamespaces(uint i)
                 {
-                    var __ret = __Internal.GetNamespaces(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Namespace.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetNamespaces(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Namespace.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7087,8 +7183,8 @@ public void ClearNamespaces()
 
                 public global::CppSharp.Parser.AST.Enumeration GetEnums(uint i)
                 {
-                    var __ret = __Internal.GetEnums(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetEnums(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7108,8 +7204,8 @@ public void ClearEnums()
 
                 public global::CppSharp.Parser.AST.Function GetFunctions(uint i)
                 {
-                    var __ret = __Internal.GetFunctions(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Function.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFunctions(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Function.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7129,8 +7225,8 @@ public void ClearFunctions()
 
                 public global::CppSharp.Parser.AST.Class GetClasses(uint i)
                 {
-                    var __ret = __Internal.GetClasses(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Class.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetClasses(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Class.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7150,8 +7246,8 @@ public void ClearClasses()
 
                 public global::CppSharp.Parser.AST.Template GetTemplates(uint i)
                 {
-                    var __ret = __Internal.GetTemplates(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Template.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTemplates(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Template.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7171,8 +7267,8 @@ public void ClearTemplates()
 
                 public global::CppSharp.Parser.AST.TypedefDecl GetTypedefs(uint i)
                 {
-                    var __ret = __Internal.GetTypedefs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TypedefDecl.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTypedefs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TypedefDecl.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7192,8 +7288,8 @@ public void ClearTypedefs()
 
                 public global::CppSharp.Parser.AST.TypeAlias GetTypeAliases(uint i)
                 {
-                    var __ret = __Internal.GetTypeAliases(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TypeAlias.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTypeAliases(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TypeAlias.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7213,8 +7309,8 @@ public void ClearTypeAliases()
 
                 public global::CppSharp.Parser.AST.Variable GetVariables(uint i)
                 {
-                    var __ret = __Internal.GetVariables(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Variable.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetVariables(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Variable.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7234,8 +7330,8 @@ public void ClearVariables()
 
                 public global::CppSharp.Parser.AST.Friend GetFriends(uint i)
                 {
-                    var __ret = __Internal.GetFriends(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Friend.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFriends(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Friend.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7275,8 +7371,8 @@ public uint NamespacesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetNamespacesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetNamespacesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7284,8 +7380,8 @@ public uint EnumsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetEnumsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetEnumsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7293,8 +7389,8 @@ public uint FunctionsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFunctionsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFunctionsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7302,8 +7398,8 @@ public uint ClassesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetClassesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetClassesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7311,8 +7407,8 @@ public uint TemplatesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTemplatesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTemplatesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7320,8 +7416,8 @@ public uint TypedefsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTypedefsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTypedefsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7329,8 +7425,8 @@ public uint TypeAliasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTypeAliasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTypeAliasesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7338,8 +7434,8 @@ public uint VariablesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetVariablesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetVariablesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7347,8 +7443,8 @@ public uint FriendsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFriendsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFriendsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -7394,6 +7490,8 @@ public unsafe partial class TypedefNameDecl : global::CppSharp.Parser.AST.Declar
 
                 internal static new TypedefNameDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefNameDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -7531,6 +7629,8 @@ public unsafe partial class TypedefDecl : global::CppSharp.Parser.AST.TypedefNam
 
                 internal static new TypedefDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -7649,6 +7749,8 @@ public unsafe partial class TypeAlias : global::CppSharp.Parser.AST.TypedefNameD
 
                 internal static new TypeAlias __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeAlias(native.ToPointer(), skipVTables);
                 }
 
@@ -7780,6 +7882,8 @@ public unsafe partial class Friend : global::CppSharp.Parser.AST.Declaration, ID
 
                 internal static new Friend __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Friend(native.ToPointer(), skipVTables);
                 }
 
@@ -7909,6 +8013,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static StatementObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StatementObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8057,6 +8163,8 @@ public unsafe partial class ExpressionObsolete : global::CppSharp.Parser.AST.Sta
 
                 internal static new ExpressionObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExpressionObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8162,6 +8270,8 @@ public unsafe partial class BinaryOperatorObsolete : global::CppSharp.Parser.AST
 
                 internal static new BinaryOperatorObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryOperatorObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8324,6 +8434,8 @@ public unsafe partial class CallExprObsolete : global::CppSharp.Parser.AST.Expre
 
                 internal static new CallExprObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CallExprObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8406,8 +8518,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ExpressionObsolete GetArguments(uint i)
                 {
-                    var __ret = __Internal.GetArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -8429,8 +8541,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -8469,6 +8581,8 @@ public unsafe partial class CXXConstructExprObsolete : global::CppSharp.Parser.A
 
                 internal static new CXXConstructExprObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstructExprObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8551,8 +8665,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ExpressionObsolete GetArguments(uint i)
                 {
-                    var __ret = __Internal.GetArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -8574,8 +8688,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -8626,6 +8740,8 @@ public unsafe partial class Parameter : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Parameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Parameter(native.ToPointer(), skipVTables);
                 }
 
@@ -8867,6 +8983,8 @@ public unsafe partial class Function : global::CppSharp.Parser.AST.DeclarationCo
 
                 internal static new Function __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Function(native.ToPointer(), skipVTables);
                 }
 
@@ -8944,8 +9062,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Parameter GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9224,8 +9342,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9324,6 +9442,8 @@ public unsafe partial class Method : global::CppSharp.Parser.AST.Function, IDisp
 
                 internal static new Method __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Method(native.ToPointer(), skipVTables);
                 }
 
@@ -9401,8 +9521,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Method GetOverriddenMethods(uint i)
                 {
-                    var __ret = __Internal.GetOverriddenMethods(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetOverriddenMethods(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9556,8 +9676,8 @@ public uint OverriddenMethodsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetOverriddenMethodsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetOverriddenMethodsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9680,6 +9800,8 @@ public unsafe partial class Item : global::CppSharp.Parser.AST.Declaration, IDis
 
                     internal static new Item __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Item(native.ToPointer(), skipVTables);
                     }
 
@@ -9785,6 +9907,8 @@ public ulong Value
 
                 internal static new Enumeration __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Enumeration(native.ToPointer(), skipVTables);
                 }
 
@@ -9862,8 +9986,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Enumeration.Item GetItems(uint i)
                 {
-                    var __ret = __Internal.GetItems(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetItems(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9886,9 +10010,9 @@ public void ClearItems()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, Name);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindItemByName(__Instance, __arg0);
+                    var ___ret = __Internal.FindItemByName(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9937,8 +10061,8 @@ public uint ItemsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetItemsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetItemsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9987,6 +10111,8 @@ public unsafe partial class Variable : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Variable __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Variable(native.ToPointer(), skipVTables);
                 }
 
@@ -10156,6 +10282,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static BaseClassSpecifier __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BaseClassSpecifier(native.ToPointer(), skipVTables);
                 }
 
@@ -10329,6 +10457,8 @@ public unsafe partial class Field : global::CppSharp.Parser.AST.Declaration, IDi
 
                 internal static new Field __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Field(native.ToPointer(), skipVTables);
                 }
 
@@ -10500,6 +10630,8 @@ public unsafe partial class AccessSpecifierDecl : global::CppSharp.Parser.AST.De
 
                 internal static new AccessSpecifierDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AccessSpecifierDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -10612,6 +10744,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VTableComponent __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VTableComponent(native.ToPointer(), skipVTables);
                 }
 
@@ -10777,6 +10911,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VTableLayout __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VTableLayout(native.ToPointer(), skipVTables);
                 }
 
@@ -10859,8 +10995,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VTableComponent GetComponents(uint i)
                 {
-                    var __ret = __Internal.GetComponents(__Instance, i);
-                    return global::CppSharp.Parser.AST.VTableComponent.__CreateInstance(__ret);
+                    var ___ret = __Internal.GetComponents(__Instance, i);
+                    return global::CppSharp.Parser.AST.VTableComponent.__CreateInstance(___ret);
                 }
 
                 public void AddComponents(global::CppSharp.Parser.AST.VTableComponent s)
@@ -10880,8 +11016,8 @@ public uint ComponentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetComponentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetComponentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -10926,6 +11062,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VFTableInfo __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VFTableInfo(native.ToPointer(), skipVTables);
                 }
 
@@ -11101,6 +11239,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static LayoutField __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LayoutField(native.ToPointer(), skipVTables);
                 }
 
@@ -11275,6 +11415,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static LayoutBase __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LayoutBase(native.ToPointer(), skipVTables);
                 }
 
@@ -11466,6 +11608,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static ClassLayout __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassLayout(native.ToPointer(), skipVTables);
                 }
 
@@ -11548,11 +11692,11 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VFTableInfo GetVFTables(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.VFTableInfo.__Internal();
-                    __Internal.GetVFTables(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.VFTableInfo.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.VFTableInfo.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.VFTableInfo.__Internal();
+                    __Internal.GetVFTables(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.VFTableInfo.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.VFTableInfo.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddVFTables(global::CppSharp.Parser.AST.VFTableInfo s)
@@ -11570,11 +11714,11 @@ public void ClearVFTables()
 
                 public global::CppSharp.Parser.AST.LayoutField GetFields(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.LayoutField.__Internal();
-                    __Internal.GetFields(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.LayoutField.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.LayoutField.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.LayoutField.__Internal();
+                    __Internal.GetFields(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.LayoutField.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.LayoutField.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddFields(global::CppSharp.Parser.AST.LayoutField s)
@@ -11592,11 +11736,11 @@ public void ClearFields()
 
                 public global::CppSharp.Parser.AST.LayoutBase GetBases(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.LayoutBase.__Internal();
-                    __Internal.GetBases(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.LayoutBase.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.LayoutBase.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.LayoutBase.__Internal();
+                    __Internal.GetBases(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.LayoutBase.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.LayoutBase.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddBases(global::CppSharp.Parser.AST.LayoutBase s)
@@ -11722,8 +11866,8 @@ public uint VFTablesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetVFTablesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetVFTablesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -11731,8 +11875,8 @@ public uint FieldsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFieldsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFieldsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -11740,8 +11884,8 @@ public uint BasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBasesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -11861,6 +12005,8 @@ public unsafe partial class Class : global::CppSharp.Parser.AST.DeclarationConte
 
                 internal static new Class __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Class(native.ToPointer(), skipVTables);
                 }
 
@@ -11938,8 +12084,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BaseClassSpecifier GetBases(uint i)
                 {
-                    var __ret = __Internal.GetBases(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.BaseClassSpecifier.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetBases(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.BaseClassSpecifier.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -11959,8 +12105,8 @@ public void ClearBases()
 
                 public global::CppSharp.Parser.AST.Field GetFields(uint i)
                 {
-                    var __ret = __Internal.GetFields(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Field.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFields(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Field.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -11980,8 +12126,8 @@ public void ClearFields()
 
                 public global::CppSharp.Parser.AST.Method GetMethods(uint i)
                 {
-                    var __ret = __Internal.GetMethods(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetMethods(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12001,8 +12147,8 @@ public void ClearMethods()
 
                 public global::CppSharp.Parser.AST.AccessSpecifierDecl GetSpecifiers(uint i)
                 {
-                    var __ret = __Internal.GetSpecifiers(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.AccessSpecifierDecl.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecifiers(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.AccessSpecifierDecl.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12181,8 +12327,8 @@ public uint BasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBasesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12190,8 +12336,8 @@ public uint FieldsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFieldsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFieldsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12199,8 +12345,8 @@ public uint MethodsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetMethodsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetMethodsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12208,8 +12354,8 @@ public uint SpecifiersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecifiersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecifiersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -12271,6 +12417,8 @@ public unsafe partial class Template : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Template __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Template(native.ToPointer(), skipVTables);
                 }
 
@@ -12357,8 +12505,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Declaration GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12399,8 +12547,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -12447,6 +12595,8 @@ public unsafe partial class TypeAliasTemplate : global::CppSharp.Parser.AST.Temp
 
                 internal static new TypeAliasTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeAliasTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -12566,6 +12716,8 @@ public unsafe partial class TemplateParameter : global::CppSharp.Parser.AST.Decl
 
                 internal static new TemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12731,6 +12883,8 @@ public unsafe partial class TemplateTemplateParameter : global::CppSharp.Parser.
 
                 internal static new TemplateTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12890,6 +13044,8 @@ public unsafe partial class TypeTemplateParameter : global::CppSharp.Parser.AST.
 
                 internal static new TypeTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12983,7 +13139,7 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
             public unsafe partial class NonTypeTemplateParameter : global::CppSharp.Parser.AST.TemplateParameter, IDisposable
             {
-                [StructLayout(LayoutKind.Sequential, Size = 264)]
+                [StructLayout(LayoutKind.Sequential, Size = 280)]
                 public new partial struct __Internal
                 {
                     internal global::CppSharp.Parser.AST.DeclarationKind kind;
@@ -13030,6 +13186,8 @@ public unsafe partial class NonTypeTemplateParameter : global::CppSharp.Parser.A
 
                 internal static new NonTypeTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NonTypeTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -13249,6 +13407,8 @@ public unsafe partial class ClassTemplate : global::CppSharp.Parser.AST.Template
 
                 internal static new ClassTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -13326,8 +13486,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ClassTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13350,9 +13510,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13361,9 +13521,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplatePartialSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplatePartialSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13371,8 +13531,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13459,6 +13619,8 @@ public unsafe partial class ClassTemplateSpecialization : global::CppSharp.Parse
 
                 internal static new ClassTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -13536,9 +13698,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -13585,8 +13747,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13661,6 +13823,8 @@ public unsafe partial class ClassTemplatePartialSpecialization : global::CppShar
 
                 internal static new ClassTemplatePartialSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplatePartialSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -13795,6 +13959,8 @@ public unsafe partial class FunctionTemplate : global::CppSharp.Parser.AST.Templ
 
                 internal static new FunctionTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -13872,8 +14038,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.FunctionTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13896,9 +14062,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13906,8 +14072,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13964,6 +14130,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static FunctionTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14046,9 +14214,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -14109,8 +14277,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14176,6 +14344,8 @@ public unsafe partial class VarTemplate : global::CppSharp.Parser.AST.Template,
 
                 internal static new VarTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -14253,8 +14423,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VarTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14277,9 +14447,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14288,9 +14458,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplatePartialSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplatePartialSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14298,8 +14468,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14363,6 +14533,8 @@ public unsafe partial class VarTemplateSpecialization : global::CppSharp.Parser.
 
                 internal static new VarTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14440,9 +14612,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -14489,8 +14661,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14542,6 +14714,8 @@ public unsafe partial class VarTemplatePartialSpecialization : global::CppSharp.
 
                 internal static new VarTemplatePartialSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplatePartialSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14658,6 +14832,8 @@ public unsafe partial class UnresolvedUsingTypename : global::CppSharp.Parser.AS
 
                 internal static new UnresolvedUsingTypename __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedUsingTypename(native.ToPointer(), skipVTables);
                 }
 
@@ -14786,6 +14962,8 @@ public unsafe partial class Namespace : global::CppSharp.Parser.AST.DeclarationC
 
                 internal static new Namespace __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Namespace(native.ToPointer(), skipVTables);
                 }
 
@@ -14911,6 +15089,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static PreprocessedEntity __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PreprocessedEntity(native.ToPointer(), skipVTables);
                 }
 
@@ -15051,6 +15231,8 @@ public unsafe partial class MacroDefinition : global::CppSharp.Parser.AST.Prepro
 
                 internal static new MacroDefinition __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MacroDefinition(native.ToPointer(), skipVTables);
                 }
 
@@ -15205,6 +15387,8 @@ public unsafe partial class MacroExpansion : global::CppSharp.Parser.AST.Preproc
 
                 internal static new MacroExpansion __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MacroExpansion(native.ToPointer(), skipVTables);
                 }
 
@@ -15390,6 +15574,8 @@ public unsafe partial class TranslationUnit : global::CppSharp.Parser.AST.Namesp
 
                 internal static new TranslationUnit __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TranslationUnit(native.ToPointer(), skipVTables);
                 }
 
@@ -15467,8 +15653,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.MacroDefinition GetMacros(uint i)
                 {
-                    var __ret = __Internal.GetMacros(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.MacroDefinition.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetMacros(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.MacroDefinition.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -15517,8 +15703,8 @@ public uint MacrosCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetMacrosCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetMacrosCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -15575,6 +15761,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static ASTContext __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ASTContext(native.ToPointer(), skipVTables);
                 }
 
@@ -15660,16 +15848,16 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, File);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindOrCreateModule(__Instance, __arg0);
+                    var ___ret = __Internal.FindOrCreateModule(__Instance, __arg0);
                     __basicString0.Dispose(disposing: true, callNativeDtor:false);
-                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
                 public global::CppSharp.Parser.AST.TranslationUnit GetTranslationUnits(uint i)
                 {
-                    var __ret = __Internal.GetTranslationUnits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTranslationUnits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -15691,8 +15879,8 @@ public uint TranslationUnitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTranslationUnitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTranslationUnitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -15876,6 +16064,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Stmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Stmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16056,6 +16246,8 @@ public unsafe partial class DeclStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new DeclStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16133,8 +16325,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Declaration Getdecls(uint i)
                 {
-                    var __ret = __Internal.Getdecls(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getdecls(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -16183,8 +16375,8 @@ public uint GetdeclsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetdeclsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetdeclsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -16210,6 +16402,8 @@ public unsafe partial class NullStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new NullStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NullStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16335,6 +16529,8 @@ public unsafe partial class CompoundStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new CompoundStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16412,8 +16608,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Stmt Getbody(uint i)
                 {
-                    var __ret = __Internal.Getbody(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Stmt.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getbody(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Stmt.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -16515,8 +16711,8 @@ public uint GetbodyCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetbodyCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetbodyCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -16546,6 +16742,8 @@ public unsafe partial class SwitchCase : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SwitchCase __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SwitchCase(native.ToPointer(), skipVTables);
                 }
 
@@ -16685,6 +16883,8 @@ public unsafe partial class CaseStmt : global::CppSharp.Parser.AST.SwitchCase, I
 
                 internal static new CaseStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CaseStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16833,6 +17033,8 @@ public unsafe partial class DefaultStmt : global::CppSharp.Parser.AST.SwitchCase
 
                 internal static new DefaultStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DefaultStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16927,6 +17129,8 @@ public unsafe partial class LabelStmt : global::CppSharp.Parser.AST.Stmt, IDispo
                 private bool __name_OwnsNativeMemory = false;
                 internal static new LabelStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LabelStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17060,6 +17264,8 @@ public unsafe partial class AttributedStmt : global::CppSharp.Parser.AST.Stmt, I
 
                 internal static new AttributedStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AttributedStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17176,6 +17382,8 @@ public unsafe partial class IfStmt : global::CppSharp.Parser.AST.Stmt, IDisposab
 
                 internal static new IfStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IfStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17422,6 +17630,8 @@ public unsafe partial class SwitchStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SwitchStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SwitchStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17612,6 +17822,8 @@ public unsafe partial class WhileStmt : global::CppSharp.Parser.AST.Stmt, IDispo
 
                 internal static new WhileStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new WhileStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17762,6 +17974,8 @@ public unsafe partial class DoStmt : global::CppSharp.Parser.AST.Stmt, IDisposab
 
                 internal static new DoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17914,6 +18128,8 @@ public unsafe partial class ForStmt : global::CppSharp.Parser.AST.Stmt, IDisposa
 
                 internal static new ForStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ForStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18102,6 +18318,8 @@ public unsafe partial class GotoStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new GotoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GotoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18208,6 +18426,8 @@ public unsafe partial class IndirectGotoStmt : global::CppSharp.Parser.AST.Stmt,
 
                 internal static new IndirectGotoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IndirectGotoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18326,6 +18546,8 @@ public unsafe partial class ContinueStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new ContinueStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ContinueStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18417,6 +18639,8 @@ public unsafe partial class BreakStmt : global::CppSharp.Parser.AST.Stmt, IDispo
 
                 internal static new BreakStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BreakStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18509,6 +18733,8 @@ public unsafe partial class ReturnStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new ReturnStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ReturnStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18652,6 +18878,8 @@ public unsafe partial class AsmStmt : global::CppSharp.Parser.AST.Stmt, IDisposa
 
                 internal static new AsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18738,8 +18966,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getinputs(uint i)
                 {
-                    var __ret = __Internal.Getinputs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getinputs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -18759,8 +18987,8 @@ public void Clearinputs()
 
                 public global::CppSharp.Parser.AST.Expr Getoutputs(uint i)
                 {
-                    var __ret = __Internal.Getoutputs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getoutputs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -18878,8 +19106,8 @@ public uint GetinputsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetinputsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetinputsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -18887,8 +19115,8 @@ public uint GetoutputsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetoutputsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetoutputsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -18970,6 +19198,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static AsmStringPiece __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new AsmStringPiece(native.ToPointer(), skipVTables);
                     }
 
@@ -19119,6 +19349,8 @@ public sbyte Modifier
 
                 internal static new GCCAsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GCCAsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19243,6 +19475,8 @@ public unsafe partial class MSAsmStmt : global::CppSharp.Parser.AST.AsmStmt, IDi
 
                 internal static new MSAsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSAsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19394,6 +19628,8 @@ public unsafe partial class SEHExceptStmt : global::CppSharp.Parser.AST.Stmt, ID
 
                 internal static new SEHExceptStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHExceptStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19514,6 +19750,8 @@ public unsafe partial class SEHFinallyStmt : global::CppSharp.Parser.AST.Stmt, I
 
                 internal static new SEHFinallyStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHFinallyStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19624,6 +19862,8 @@ public unsafe partial class SEHTryStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SEHTryStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHTryStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19784,6 +20024,8 @@ public unsafe partial class SEHLeaveStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new SEHLeaveStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHLeaveStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19937,6 +20179,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Capture __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Capture(native.ToPointer(), skipVTables);
                     }
 
@@ -20093,6 +20337,8 @@ public bool CapturesVariableArrayType
 
                 internal static new CapturedStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CapturedStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20170,8 +20416,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetcaptureInits(uint i)
                 {
-                    var __ret = __Internal.GetcaptureInits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetcaptureInits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -20220,8 +20466,8 @@ public uint GetcaptureInitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetcaptureInitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetcaptureInitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -20248,6 +20494,8 @@ public unsafe partial class CXXCatchStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new CXXCatchStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXCatchStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20370,6 +20618,8 @@ public unsafe partial class CXXTryStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new CXXTryStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTryStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20500,6 +20750,8 @@ public unsafe partial class CXXForRangeStmt : global::CppSharp.Parser.AST.Stmt,
 
                 internal static new CXXForRangeStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXForRangeStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20759,6 +21011,8 @@ public unsafe partial class MSDependentExistsStmt : global::CppSharp.Parser.AST.
 
                 internal static new MSDependentExistsStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSDependentExistsStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20949,6 +21203,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static CtorArgs __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new CtorArgs(native.ToPointer(), skipVTables);
                     }
 
@@ -21027,6 +21283,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new CoroutineBodyStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoroutineBodyStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -21296,6 +21554,8 @@ public enum SubStmt
 
                 internal static new CoreturnStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoreturnStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -21771,6 +22031,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Classification __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Classification(native.ToPointer(), skipVTables);
                     }
 
@@ -21953,6 +22215,8 @@ public bool IsModifiable
 
                 internal static new Expr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Expr(native.ToPointer(), skipVTables);
                 }
 
@@ -22248,6 +22512,8 @@ public unsafe partial class FullExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new FullExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FullExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22368,6 +22634,8 @@ public unsafe partial class ConstantExpr : global::CppSharp.Parser.AST.FullExpr,
 
                 internal static new ConstantExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConstantExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22462,6 +22730,8 @@ public unsafe partial class OpaqueValueExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new OpaqueValueExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OpaqueValueExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22605,6 +22875,8 @@ public unsafe partial class DeclRefExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new DeclRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22855,6 +23127,8 @@ public unsafe partial class IntegerLiteral : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new IntegerLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IntegerLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -22974,6 +23248,8 @@ public unsafe partial class FixedPointLiteral : global::CppSharp.Parser.AST.Expr
 
                 internal static new FixedPointLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FixedPointLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23103,6 +23379,8 @@ public enum CharacterKind
 
                 internal static new CharacterLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CharacterLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23236,6 +23514,8 @@ public unsafe partial class FloatingLiteral : global::CppSharp.Parser.AST.Expr,
 
                 internal static new FloatingLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FloatingLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23367,6 +23647,8 @@ public unsafe partial class ImaginaryLiteral : global::CppSharp.Parser.AST.Expr,
 
                 internal static new ImaginaryLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImaginaryLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23499,6 +23781,8 @@ public enum StringKind
 
                 internal static new StringLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StringLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23819,6 +24103,8 @@ public enum IdentKind
 
                 internal static new PredefinedExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PredefinedExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -23939,6 +24225,8 @@ public unsafe partial class ParenExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new ParenExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParenExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24081,6 +24369,8 @@ public unsafe partial class UnaryOperator : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new UnaryOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -24320,6 +24610,8 @@ public unsafe partial class OffsetOfExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new OffsetOfExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OffsetOfExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24470,6 +24762,8 @@ public unsafe partial class UnaryExprOrTypeTraitExpr : global::CppSharp.Parser.A
 
                 internal static new UnaryExprOrTypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryExprOrTypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24662,6 +24956,8 @@ public unsafe partial class ArraySubscriptExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArraySubscriptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArraySubscriptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24849,6 +25145,8 @@ public unsafe partial class CallExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new CallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24935,8 +25233,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -25070,8 +25368,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -25122,6 +25420,8 @@ public unsafe partial class MemberExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new MemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25386,6 +25686,8 @@ public unsafe partial class CompoundLiteralExpr : global::CppSharp.Parser.AST.Ex
 
                 internal static new CompoundLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25528,6 +25830,8 @@ public unsafe partial class CastExpr : global::CppSharp.Parser.AST.Expr, IDispos
                 private bool __castKindName_OwnsNativeMemory = false;
                 internal static new CastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25754,6 +26058,8 @@ public enum OnStack_t
 
                 internal static new ImplicitCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImplicitCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25869,6 +26175,8 @@ public unsafe partial class ExplicitCastExpr : global::CppSharp.Parser.AST.CastE
 
                 internal static new ExplicitCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExplicitCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25999,6 +26307,8 @@ public unsafe partial class CStyleCastExpr : global::CppSharp.Parser.AST.Explici
 
                 internal static new CStyleCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CStyleCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -26141,6 +26451,8 @@ public unsafe partial class BinaryOperator : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new BinaryOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26538,6 +26850,8 @@ public unsafe partial class CompoundAssignOperator : global::CppSharp.Parser.AST
 
                 internal static new CompoundAssignOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundAssignOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26685,6 +26999,8 @@ public unsafe partial class AbstractConditionalOperator : global::CppSharp.Parse
 
                 internal static new AbstractConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AbstractConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26865,6 +27181,8 @@ public unsafe partial class ConditionalOperator : global::CppSharp.Parser.AST.Ab
 
                 internal static new ConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26991,6 +27309,8 @@ public unsafe partial class BinaryConditionalOperator : global::CppSharp.Parser.
 
                 internal static new BinaryConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -27112,6 +27432,8 @@ public unsafe partial class AddrLabelExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new AddrLabelExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AddrLabelExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27232,6 +27554,8 @@ public unsafe partial class StmtExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new StmtExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StmtExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27366,6 +27690,8 @@ public unsafe partial class ShuffleVectorExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ShuffleVectorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ShuffleVectorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27499,6 +27825,8 @@ public unsafe partial class ConvertVectorExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ConvertVectorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConvertVectorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27638,6 +27966,8 @@ public unsafe partial class ChooseExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new ChooseExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ChooseExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27838,6 +28168,8 @@ public unsafe partial class GNUNullExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new GNUNullExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GNUNullExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27946,6 +28278,8 @@ public unsafe partial class VAArgExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new VAArgExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VAArgExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -28102,6 +28436,8 @@ public unsafe partial class InitListExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new InitListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InitListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -28400,6 +28736,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Designator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Designator(native.ToPointer(), skipVTables);
                     }
 
@@ -28654,6 +28992,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static FieldDesignator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new FieldDesignator(native.ToPointer(), skipVTables);
                     }
 
@@ -28762,6 +29102,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static ArrayOrRangeDesignator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new ArrayOrRangeDesignator(native.ToPointer(), skipVTables);
                     }
 
@@ -28840,6 +29182,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new DesignatedInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DesignatedInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29012,6 +29356,8 @@ public unsafe partial class NoInitExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new NoInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NoInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29105,6 +29451,8 @@ public unsafe partial class DesignatedInitUpdateExpr : global::CppSharp.Parser.A
 
                 internal static new DesignatedInitUpdateExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DesignatedInitUpdateExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29226,6 +29574,8 @@ public unsafe partial class ArrayInitLoopExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ArrayInitLoopExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayInitLoopExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29345,6 +29695,8 @@ public unsafe partial class ArrayInitIndexExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArrayInitIndexExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayInitIndexExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29436,6 +29788,8 @@ public unsafe partial class ImplicitValueInitExpr : global::CppSharp.Parser.AST.
 
                 internal static new ImplicitValueInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImplicitValueInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29530,6 +29884,8 @@ public unsafe partial class ParenListExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new ParenListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParenListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29668,6 +30024,8 @@ public unsafe partial class GenericSelectionExpr : global::CppSharp.Parser.AST.E
 
                 internal static new GenericSelectionExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GenericSelectionExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29870,6 +30228,8 @@ public unsafe partial class ExtVectorElementExpr : global::CppSharp.Parser.AST.E
 
                 internal static new ExtVectorElementExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExtVectorElementExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30029,6 +30389,8 @@ public unsafe partial class BlockExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new BlockExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30150,6 +30512,8 @@ public unsafe partial class AsTypeExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new AsTypeExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AsTypeExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30285,6 +30649,8 @@ public unsafe partial class PseudoObjectExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new PseudoObjectExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PseudoObjectExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30495,6 +30861,8 @@ public enum AtomicOp
 
                 internal static new AtomicExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AtomicExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30790,6 +31158,8 @@ public unsafe partial class TypoExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new TypoExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypoExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30897,6 +31267,8 @@ public unsafe partial class CXXOperatorCallExpr : global::CppSharp.Parser.AST.Ca
 
                 internal static new CXXOperatorCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXOperatorCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31072,6 +31444,8 @@ public unsafe partial class CXXMemberCallExpr : global::CppSharp.Parser.AST.Call
 
                 internal static new CXXMemberCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXMemberCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31222,6 +31596,8 @@ public unsafe partial class CUDAKernelCallExpr : global::CppSharp.Parser.AST.Cal
 
                 internal static new CUDAKernelCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CUDAKernelCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31361,6 +31737,8 @@ public unsafe partial class CXXNamedCastExpr : global::CppSharp.Parser.AST.Expli
                 private bool __castName_OwnsNativeMemory = false;
                 internal static new CXXNamedCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNamedCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31546,6 +31924,8 @@ public unsafe partial class CXXStaticCastExpr : global::CppSharp.Parser.AST.CXXN
 
                 internal static new CXXStaticCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXStaticCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31650,6 +32030,8 @@ public unsafe partial class CXXDynamicCastExpr : global::CppSharp.Parser.AST.CXX
 
                 internal static new CXXDynamicCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDynamicCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31766,6 +32148,8 @@ public unsafe partial class CXXReinterpretCastExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXReinterpretCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXReinterpretCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31869,6 +32253,8 @@ public unsafe partial class CXXConstCastExpr : global::CppSharp.Parser.AST.CXXNa
 
                 internal static new CXXConstCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31985,6 +32371,8 @@ public enum LiteralOperatorKind
 
                 internal static new UserDefinedLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UserDefinedLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -32136,6 +32524,8 @@ public unsafe partial class CXXBoolLiteralExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new CXXBoolLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXBoolLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32254,6 +32644,8 @@ public unsafe partial class CXXNullPtrLiteralExpr : global::CppSharp.Parser.AST.
 
                 internal static new CXXNullPtrLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNullPtrLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32359,6 +32751,8 @@ public unsafe partial class CXXStdInitializerListExpr : global::CppSharp.Parser.
 
                 internal static new CXXStdInitializerListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXStdInitializerListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32467,6 +32861,8 @@ public unsafe partial class CXXTypeidExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXTypeidExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTypeidExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32602,6 +32998,8 @@ public unsafe partial class MSPropertyRefExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new MSPropertyRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSPropertyRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32749,6 +33147,8 @@ public unsafe partial class MSPropertySubscriptExpr : global::CppSharp.Parser.AS
 
                 internal static new MSPropertySubscriptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSPropertySubscriptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32887,6 +33287,8 @@ public unsafe partial class CXXUuidofExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXUuidofExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXUuidofExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33039,6 +33441,8 @@ public unsafe partial class CXXThisExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new CXXThisExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXThisExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33159,6 +33563,8 @@ public unsafe partial class CXXThrowExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new CXXThrowExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXThrowExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33292,6 +33698,8 @@ public unsafe partial class CXXDefaultArgExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new CXXDefaultArgExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDefaultArgExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33412,6 +33820,8 @@ public unsafe partial class CXXDefaultInitExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new CXXDefaultInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDefaultInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33532,6 +33942,8 @@ public unsafe partial class CXXBindTemporaryExpr : global::CppSharp.Parser.AST.E
 
                 internal static new CXXBindTemporaryExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXBindTemporaryExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33672,6 +34084,8 @@ public enum ConstructionKind
 
                 internal static new CXXConstructExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstructExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33758,8 +34172,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -33892,8 +34306,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -33934,6 +34348,8 @@ public unsafe partial class CXXInheritedCtorInitExpr : global::CppSharp.Parser.A
 
                 internal static new CXXInheritedCtorInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXInheritedCtorInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34075,6 +34491,8 @@ public unsafe partial class CXXFunctionalCastExpr : global::CppSharp.Parser.AST.
 
                 internal static new CXXFunctionalCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXFunctionalCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34217,6 +34635,8 @@ public unsafe partial class CXXTemporaryObjectExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXTemporaryObjectExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTemporaryObjectExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34351,6 +34771,8 @@ public unsafe partial class LambdaExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new LambdaExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LambdaExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34428,8 +34850,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetcaptureInits(uint i)
                 {
-                    var __ret = __Internal.GetcaptureInits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetcaptureInits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -34572,8 +34994,8 @@ public uint GetcaptureInitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetcaptureInitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetcaptureInitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -34612,6 +35034,8 @@ public unsafe partial class CXXScalarValueInitExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXScalarValueInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXScalarValueInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34753,6 +35177,8 @@ public enum InitializationStyle
 
                 internal static new CXXNewExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNewExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34830,8 +35256,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetplacementArguments(uint i)
                 {
-                    var __ret = __Internal.GetplacementArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetplacementArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -35046,8 +35472,8 @@ public uint GetplacementArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetplacementArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetplacementArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -35091,6 +35517,8 @@ public unsafe partial class CXXDeleteExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXDeleteExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDeleteExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35272,6 +35700,8 @@ public unsafe partial class CXXPseudoDestructorExpr : global::CppSharp.Parser.AS
 
                 internal static new CXXPseudoDestructorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXPseudoDestructorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35472,6 +35902,8 @@ public unsafe partial class TypeTraitExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new TypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35592,6 +36024,8 @@ public unsafe partial class ArrayTypeTraitExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArrayTypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayTypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35727,6 +36161,8 @@ public unsafe partial class ExpressionTraitExpr : global::CppSharp.Parser.AST.Ex
 
                 internal static new ExpressionTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExpressionTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35886,6 +36322,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static FindResult __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new FindResult(native.ToPointer(), skipVTables);
                     }
 
@@ -35964,6 +36402,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new OverloadExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OverloadExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36183,6 +36623,8 @@ public unsafe partial class UnresolvedLookupExpr : global::CppSharp.Parser.AST.O
 
                 internal static new UnresolvedLookupExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedLookupExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36307,6 +36749,8 @@ public unsafe partial class DependentScopeDeclRefExpr : global::CppSharp.Parser.
 
                 internal static new DependentScopeDeclRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentScopeDeclRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36492,6 +36936,8 @@ public unsafe partial class ExprWithCleanups : global::CppSharp.Parser.AST.FullE
 
                 internal static new ExprWithCleanups __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExprWithCleanups(native.ToPointer(), skipVTables);
                 }
 
@@ -36630,6 +37076,8 @@ public unsafe partial class CXXUnresolvedConstructExpr : global::CppSharp.Parser
 
                 internal static new CXXUnresolvedConstructExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXUnresolvedConstructExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36707,8 +37155,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -36797,8 +37245,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -36849,6 +37297,8 @@ public unsafe partial class CXXDependentScopeMemberExpr : global::CppSharp.Parse
 
                 internal static new CXXDependentScopeMemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDependentScopeMemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37128,6 +37578,8 @@ public unsafe partial class UnresolvedMemberExpr : global::CppSharp.Parser.AST.O
 
                 internal static new UnresolvedMemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedMemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37315,6 +37767,8 @@ public unsafe partial class CXXNoexceptExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new CXXNoexceptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNoexceptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37435,6 +37889,8 @@ public unsafe partial class PackExpansionExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new PackExpansionExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PackExpansionExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37559,6 +38015,8 @@ public unsafe partial class SizeOfPackExpr : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new SizeOfPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SizeOfPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37731,6 +38189,8 @@ public unsafe partial class SubstNonTypeTemplateParmExpr : global::CppSharp.Pars
 
                 internal static new SubstNonTypeTemplateParmExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SubstNonTypeTemplateParmExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37851,6 +38311,8 @@ public unsafe partial class SubstNonTypeTemplateParmPackExpr : global::CppSharp.
 
                 internal static new SubstNonTypeTemplateParmPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SubstNonTypeTemplateParmPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37972,6 +38434,8 @@ public unsafe partial class FunctionParmPackExpr : global::CppSharp.Parser.AST.E
 
                 internal static new FunctionParmPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionParmPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38123,6 +38587,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static ExtraState __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new ExtraState(native.ToPointer(), skipVTables);
                     }
 
@@ -38201,6 +38667,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new MaterializeTemporaryExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MaterializeTemporaryExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38354,6 +38822,8 @@ public unsafe partial class CXXFoldExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new CXXFoldExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXFoldExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38571,6 +39041,8 @@ public enum SubExpr
 
                 internal static new CoroutineSuspendExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoroutineSuspendExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38767,6 +39239,8 @@ public unsafe partial class CoawaitExpr : global::CppSharp.Parser.AST.CoroutineS
 
                 internal static new CoawaitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoawaitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38888,6 +39362,8 @@ public unsafe partial class DependentCoawaitExpr : global::CppSharp.Parser.AST.E
 
                 internal static new DependentCoawaitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentCoawaitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -39027,6 +39503,8 @@ public unsafe partial class CoyieldExpr : global::CppSharp.Parser.AST.CoroutineS
 
                 internal static new CoyieldExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoyieldExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -39198,6 +39676,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserTargetInfo __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserTargetInfo(native.ToPointer(), skipVTables);
             }
 
@@ -39870,6 +40350,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static Parser __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new Parser(native.ToPointer(), skipVTables);
             }
 
@@ -40080,6 +40562,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static CppParserOptions __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new CppParserOptions(native.ToPointer(), skipVTables);
             }
 
@@ -40162,8 +40646,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public string GetArguments(uint i)
             {
-                var __ret = __Internal.GetArguments(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetArguments(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddArguments(string s)
@@ -40178,8 +40662,8 @@ public void ClearArguments()
 
             public string GetCompilationOptions(uint i)
             {
-                var __ret = __Internal.GetCompilationOptions(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetCompilationOptions(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddCompilationOptions(string s)
@@ -40194,8 +40678,8 @@ public void ClearCompilationOptions()
 
             public string GetSourceFiles(uint i)
             {
-                var __ret = __Internal.GetSourceFiles(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSourceFiles(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSourceFiles(string s)
@@ -40210,8 +40694,8 @@ public void ClearSourceFiles()
 
             public string GetIncludeDirs(uint i)
             {
-                var __ret = __Internal.GetIncludeDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetIncludeDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddIncludeDirs(string s)
@@ -40226,8 +40710,8 @@ public void ClearIncludeDirs()
 
             public string GetSystemIncludeDirs(uint i)
             {
-                var __ret = __Internal.GetSystemIncludeDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSystemIncludeDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSystemIncludeDirs(string s)
@@ -40242,8 +40726,8 @@ public void ClearSystemIncludeDirs()
 
             public string GetDefines(uint i)
             {
-                var __ret = __Internal.GetDefines(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetDefines(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddDefines(string s)
@@ -40258,8 +40742,8 @@ public void ClearDefines()
 
             public string GetUndefines(uint i)
             {
-                var __ret = __Internal.GetUndefines(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetUndefines(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddUndefines(string s)
@@ -40274,8 +40758,8 @@ public void ClearUndefines()
 
             public string GetSupportedStdTypes(uint i)
             {
-                var __ret = __Internal.GetSupportedStdTypes(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSupportedStdTypes(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSupportedStdTypes(string s)
@@ -40290,8 +40774,8 @@ public void ClearSupportedStdTypes()
 
             public string GetSupportedFunctionTemplates(uint i)
             {
-                var __ret = __Internal.GetSupportedFunctionTemplates(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSupportedFunctionTemplates(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSupportedFunctionTemplates(string s)
@@ -40453,9 +40937,9 @@ public string ClangVersion
             {
                 get
                 {
-                    var __ret = new global::Std.BasicString.__Internalc__N_std_N___cxx11_S_basic_string__C___N_std_S_char_traits__C___N_std_S_allocator__C();
-                    __Internal.GetClangVersion(new IntPtr(&__ret), __Instance);
-                    var __basicStringRet0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__CreateInstance(new __IntPtr(&__ret));
+                    var ___ret = new global::Std.BasicString.__Internalc__N_std_N___cxx11_S_basic_string__C___N_std_S_char_traits__C___N_std_S_allocator__C();
+                    __Internal.GetClangVersion(new IntPtr(&___ret), __Instance);
+                    var __basicStringRet0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__CreateInstance(new __IntPtr(&___ret));
                     var __retString0 = global::Std.BasicStringExtensions.Data(__basicStringRet0);
                     __basicStringRet0.Dispose();
                     return __retString0;
@@ -40466,8 +40950,8 @@ public uint ArgumentsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetArgumentsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetArgumentsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40475,8 +40959,8 @@ public uint CompilationOptionsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetCompilationOptionsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetCompilationOptionsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40484,8 +40968,8 @@ public uint SourceFilesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSourceFilesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSourceFilesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40493,8 +40977,8 @@ public uint IncludeDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetIncludeDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetIncludeDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40502,8 +40986,8 @@ public uint SystemIncludeDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSystemIncludeDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSystemIncludeDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40511,8 +40995,8 @@ public uint DefinesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetDefinesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetDefinesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40520,8 +41004,8 @@ public uint UndefinesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetUndefinesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetUndefinesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40529,8 +41013,8 @@ public uint SupportedStdTypesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSupportedStdTypesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSupportedStdTypesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40538,8 +41022,8 @@ public uint SupportedFunctionTemplatesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSupportedFunctionTemplatesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSupportedFunctionTemplatesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -40619,6 +41103,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static CppLinkerOptions __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new CppLinkerOptions(native.ToPointer(), skipVTables);
             }
 
@@ -40701,8 +41187,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public string GetArguments(uint i)
             {
-                var __ret = __Internal.GetArguments(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetArguments(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddArguments(string s)
@@ -40717,8 +41203,8 @@ public void ClearArguments()
 
             public string GetLibraryDirs(uint i)
             {
-                var __ret = __Internal.GetLibraryDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetLibraryDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddLibraryDirs(string s)
@@ -40733,8 +41219,8 @@ public void ClearLibraryDirs()
 
             public string GetLibraries(uint i)
             {
-                var __ret = __Internal.GetLibraries(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetLibraries(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddLibraries(string s)
@@ -40751,8 +41237,8 @@ public uint ArgumentsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetArgumentsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetArgumentsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40760,8 +41246,8 @@ public uint LibraryDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibraryDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibraryDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40769,8 +41255,8 @@ public uint LibrariesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibrariesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibrariesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -40816,6 +41302,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserDiagnostic __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserDiagnostic(native.ToPointer(), skipVTables);
             }
 
@@ -41028,6 +41516,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserResult __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserResult(native.ToPointer(), skipVTables);
             }
 
@@ -41110,11 +41600,11 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public global::CppSharp.Parser.ParserDiagnostic GetDiagnostics(uint i)
             {
-                var __ret = new global::CppSharp.Parser.ParserDiagnostic.__Internal();
-                __Internal.GetDiagnostics(new IntPtr(&__ret), __Instance, i);
-                var ____ret = global::CppSharp.Parser.ParserDiagnostic.__CreateInstance(__ret);
-                global::CppSharp.Parser.ParserDiagnostic.__Internal.dtor(new __IntPtr(&__ret));
-                return ____ret;
+                var ___ret = new global::CppSharp.Parser.ParserDiagnostic.__Internal();
+                __Internal.GetDiagnostics(new IntPtr(&___ret), __Instance, i);
+                var _____ret = global::CppSharp.Parser.ParserDiagnostic.__CreateInstance(___ret);
+                global::CppSharp.Parser.ParserDiagnostic.__Internal.dtor(new __IntPtr(&___ret));
+                return _____ret;
             }
 
             public void AddDiagnostics(global::CppSharp.Parser.ParserDiagnostic s)
@@ -41132,8 +41622,8 @@ public void ClearDiagnostics()
 
             public global::CppSharp.Parser.AST.NativeLibrary GetLibraries(uint i)
             {
-                var __ret = __Internal.GetLibraries(__Instance, i);
-                var __result0 = global::CppSharp.Parser.AST.NativeLibrary.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.GetLibraries(__Instance, i);
+                var __result0 = global::CppSharp.Parser.AST.NativeLibrary.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41182,8 +41672,8 @@ public uint DiagnosticsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetDiagnosticsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetDiagnosticsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -41191,8 +41681,8 @@ public uint LibrariesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibrariesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibrariesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -41241,6 +41731,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ClangParser __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ClangParser(native.ToPointer(), skipVTables);
             }
 
@@ -41318,16 +41810,16 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
             public static global::CppSharp.Parser.ParserResult ParseHeader(global::CppSharp.Parser.CppParserOptions Opts)
             {
                 var __arg0 = Opts is null ? __IntPtr.Zero : Opts.__Instance;
-                var __ret = __Internal.ParseHeader(__arg0);
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.ParseHeader(__arg0);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
             public static global::CppSharp.Parser.ParserResult ParseLibrary(global::CppSharp.Parser.CppLinkerOptions Opts)
             {
                 var __arg0 = Opts is null ? __IntPtr.Zero : Opts.__Instance;
-                var __ret = __Internal.ParseLibrary(__arg0);
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.ParseLibrary(__arg0);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41338,9 +41830,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString2 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString2, File);
                 var __arg2 = __basicString2.__Instance;
-                var __ret = __Internal.Build(__arg0, __arg1, __arg2, Last);
+                var ___ret = __Internal.Build(__arg0, __arg1, __arg2, Last);
                 __basicString2.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41350,9 +41842,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString1 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString1, File);
                 var __arg1 = __basicString1.__Instance;
-                var __ret = __Internal.Compile(__arg0, __arg1);
+                var ___ret = __Internal.Compile(__arg0, __arg1);
                 __basicString1.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41363,9 +41855,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString2 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString2, File);
                 var __arg2 = __basicString2.__Instance;
-                var __ret = __Internal.Link(__arg0, __arg1, __arg2, Last);
+                var ___ret = __Internal.Link(__arg0, __arg1, __arg2, Last);
                 __basicString2.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
         }
diff --git a/src/CppParser/Bindings/CSharp/x86_64-linux-gnu-cxx11abi/Std.cs b/src/CppParser/Bindings/CSharp/x86_64-linux-gnu-cxx11abi/Std.cs
index cba538aca..cdf0bbf78 100644
--- a/src/CppParser/Bindings/CSharp/x86_64-linux-gnu-cxx11abi/Std.cs
+++ b/src/CppParser/Bindings/CSharp/x86_64-linux-gnu-cxx11abi/Std.cs
@@ -15,6 +15,8 @@
 
 [assembly:InternalsVisibleTo("CppSharp.CppParser")]
 
+#pragma warning disable CS0109 // Member does not hide an inherited member; new keyword is not required
+
 namespace Std
 {
     namespace Allocator
@@ -52,6 +54,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static Allocator<_Tp> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new Allocator<_Tp>(native.ToPointer(), skipVTables);
         }
 
@@ -256,6 +260,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static CharTraits<_CharT> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new CharTraits<_CharT>(native.ToPointer(), skipVTables);
         }
 
@@ -390,6 +396,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static BasicString<_CharT, _Traits, _Alloc> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new BasicString<_CharT, _Traits, _Alloc>(native.ToPointer(), skipVTables);
         }
 
@@ -492,16 +500,16 @@ public partial struct __Internal
         public static global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> Assign(this global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> @this, string __s)
         {
             var __arg0 = @this is null ? __IntPtr.Zero : @this.__Instance;
-            var __ret = __Internal.Assign(__arg0, __s);
-            var __result0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__GetOrCreateInstance(__ret, false);
+            var ___ret = __Internal.Assign(__arg0, __s);
+            var __result0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__GetOrCreateInstance(___ret, false);
             return __result0;
         }
 
         public static string Data(this global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> @this)
         {
             var __arg0 = @this is null ? __IntPtr.Zero : @this.__Instance;
-            var __ret = __Internal.Data(__arg0);
-            return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+            var ___ret = __Internal.Data(__arg0);
+            return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
         }
     }
 }
diff --git a/src/CppParser/Bindings/CSharp/x86_64-linux-gnu/CppSharp.CppParser-symbols.cpp b/src/CppParser/Bindings/CSharp/x86_64-linux-gnu/CppSharp.CppParser-symbols.cpp
index 0ac2c5a0e..38c9d198b 100644
--- a/src/CppParser/Bindings/CSharp/x86_64-linux-gnu/CppSharp.CppParser-symbols.cpp
+++ b/src/CppParser/Bindings/CSharp/x86_64-linux-gnu/CppSharp.CppParser-symbols.cpp
@@ -35,7 +35,6 @@ class CppSharp::CppParser::AST::InlineCommandComment& (CppSharp::CppParser::AST:
 extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_InlineCommandComment__InlineCommandComment(CppSharp::CppParser::AST::InlineCommandComment*__instance) { __instance->~InlineCommandComment(); }
 class CppSharp::CppParser::AST::HTMLTagComment& (CppSharp::CppParser::AST::HTMLTagComment::*_15)(class CppSharp::CppParser::AST::HTMLTagComment&&) = &CppSharp::CppParser::AST::HTMLTagComment::operator=;
 class CppSharp::CppParser::AST::HTMLStartTagComment::Attribute& (CppSharp::CppParser::AST::HTMLStartTagComment::Attribute::*_16)(const class CppSharp::CppParser::AST::HTMLStartTagComment::Attribute&) = &CppSharp::CppParser::AST::HTMLStartTagComment::Attribute::operator=;
-extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment_S_Attribute__Attribute(CppSharp::CppParser::AST::HTMLStartTagComment::Attribute*__instance) { __instance->~Attribute(); }
 extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment_HTMLStartTagComment___1__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment(void* __instance, const CppSharp::CppParser::AST::HTMLStartTagComment& _0) { ::new (__instance) CppSharp::CppParser::AST::HTMLStartTagComment(_0); }
 class CppSharp::CppParser::AST::HTMLStartTagComment& (CppSharp::CppParser::AST::HTMLStartTagComment::*_17)(class CppSharp::CppParser::AST::HTMLStartTagComment&&) = &CppSharp::CppParser::AST::HTMLStartTagComment::operator=;
 extern "C" void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment__HTMLStartTagComment(CppSharp::CppParser::AST::HTMLStartTagComment*__instance) { __instance->~HTMLStartTagComment(); }
diff --git a/src/CppParser/Bindings/CSharp/x86_64-linux-gnu/CppSharp.CppParser.cs b/src/CppParser/Bindings/CSharp/x86_64-linux-gnu/CppSharp.CppParser.cs
index 2b7e1e837..ec7ffd9eb 100644
--- a/src/CppParser/Bindings/CSharp/x86_64-linux-gnu/CppSharp.CppParser.cs
+++ b/src/CppParser/Bindings/CSharp/x86_64-linux-gnu/CppSharp.CppParser.cs
@@ -13,6 +13,8 @@
 
 [assembly:InternalsVisibleTo("CppSharp.Parser")]
 
+#pragma warning disable CS0109 // Member does not hide an inherited member; new keyword is not required
+
 namespace CppSharp
 {
     namespace Parser
@@ -121,6 +123,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static NativeLibrary __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NativeLibrary(native.ToPointer(), skipVTables);
                 }
 
@@ -203,8 +207,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public string GetSymbols(uint i)
                 {
-                    var __ret = __Internal.GetSymbols(__Instance, i);
-                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                    var ___ret = __Internal.GetSymbols(__Instance, i);
+                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
                 }
 
                 public void AddSymbols(string s)
@@ -219,8 +223,8 @@ public void ClearSymbols()
 
                 public string GetDependencies(uint i)
                 {
-                    var __ret = __Internal.GetDependencies(__Instance, i);
-                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                    var ___ret = __Internal.GetDependencies(__Instance, i);
+                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
                 }
 
                 public void AddDependencies(string s)
@@ -264,8 +268,8 @@ public uint SymbolsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSymbolsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSymbolsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -273,8 +277,8 @@ public uint DependenciesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetDependenciesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetDependenciesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -313,6 +317,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Comment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Comment(native.ToPointer(), skipVTables);
                 }
 
@@ -426,6 +432,8 @@ public unsafe partial class BlockContentComment : global::CppSharp.Parser.AST.Co
 
                 internal static new BlockContentComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockContentComment(native.ToPointer(), skipVTables);
                 }
 
@@ -530,6 +538,8 @@ public unsafe partial class FullComment : global::CppSharp.Parser.AST.Comment, I
 
                 internal static new FullComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FullComment(native.ToPointer(), skipVTables);
                 }
 
@@ -607,8 +617,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BlockContentComment GetBlocks(uint i)
                 {
-                    var __ret = __Internal.GetBlocks(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.BlockContentComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetBlocks(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.BlockContentComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -630,8 +640,8 @@ public uint BlocksCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBlocksCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBlocksCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -656,6 +666,8 @@ public unsafe partial class InlineContentComment : global::CppSharp.Parser.AST.C
 
                 internal static new InlineContentComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InlineContentComment(native.ToPointer(), skipVTables);
                 }
 
@@ -774,6 +786,8 @@ public unsafe partial class ParagraphComment : global::CppSharp.Parser.AST.Block
 
                 internal static new ParagraphComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParagraphComment(native.ToPointer(), skipVTables);
                 }
 
@@ -851,8 +865,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.InlineContentComment GetContent(uint i)
                 {
-                    var __ret = __Internal.GetContent(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.InlineContentComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetContent(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.InlineContentComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -887,8 +901,8 @@ public uint ContentCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetContentCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetContentCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -965,6 +979,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Argument __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Argument(native.ToPointer(), skipVTables);
                     }
 
@@ -1062,6 +1078,8 @@ public string Text
 
                 internal static new BlockCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1148,11 +1166,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BlockCommandComment.Argument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.BlockCommandComment.Argument.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.BlockCommandComment.Argument.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.BlockCommandComment.Argument s)
@@ -1204,8 +1222,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1241,6 +1259,8 @@ public enum PassDirection : uint
 
                 internal static new ParamCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParamCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1378,6 +1398,8 @@ public unsafe partial class TParamCommandComment : global::CppSharp.Parser.AST.B
 
                 internal static new TParamCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TParamCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1455,8 +1477,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public uint GetPosition(uint i)
                 {
-                    var __ret = __Internal.GetPosition(__Instance, i);
-                    return __ret;
+                    var ___ret = __Internal.GetPosition(__Instance, i);
+                    return ___ret;
                 }
 
                 public void AddPosition(ref uint s)
@@ -1477,8 +1499,8 @@ public uint PositionCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetPositionCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetPositionCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1503,6 +1525,8 @@ public unsafe partial class VerbatimBlockLineComment : global::CppSharp.Parser.A
 
                 internal static new VerbatimBlockLineComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimBlockLineComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1628,6 +1652,8 @@ public unsafe partial class VerbatimBlockComment : global::CppSharp.Parser.AST.B
 
                 internal static new VerbatimBlockComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimBlockComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1705,8 +1731,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VerbatimBlockLineComment GetLines(uint i)
                 {
-                    var __ret = __Internal.GetLines(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.VerbatimBlockLineComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetLines(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.VerbatimBlockLineComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -1728,8 +1754,8 @@ public uint LinesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetLinesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetLinesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1757,6 +1783,8 @@ public unsafe partial class VerbatimLineComment : global::CppSharp.Parser.AST.Bl
 
                 internal static new VerbatimLineComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimLineComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1926,6 +1954,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Argument __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Argument(native.ToPointer(), skipVTables);
                     }
 
@@ -2023,6 +2053,8 @@ public string Text
 
                 internal static new InlineCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InlineCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2100,11 +2132,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.InlineCommandComment.Argument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.InlineCommandComment.Argument.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.InlineCommandComment.Argument.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.InlineCommandComment.Argument s)
@@ -2150,8 +2182,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -2176,6 +2208,8 @@ public unsafe partial class HTMLTagComment : global::CppSharp.Parser.AST.InlineC
 
                 internal static new HTMLTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2318,6 +2352,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Attribute __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Attribute(native.ToPointer(), skipVTables);
                     }
 
@@ -2429,6 +2465,8 @@ public string Value
 
                 internal static new HTMLStartTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLStartTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2506,11 +2544,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute GetAttributes(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal();
-                    __Internal.GetAttributes(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal();
+                    __Internal.GetAttributes(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddAttributes(global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute s)
@@ -2544,8 +2582,8 @@ public uint AttributesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetAttributesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetAttributesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -2571,6 +2609,8 @@ public unsafe partial class HTMLEndTagComment : global::CppSharp.Parser.AST.HTML
 
                 internal static new HTMLEndTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLEndTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2682,6 +2722,8 @@ public unsafe partial class TextComment : global::CppSharp.Parser.AST.InlineCont
 
                 internal static new TextComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TextComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2812,6 +2854,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static RawComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new RawComment(native.ToPointer(), skipVTables);
                 }
 
@@ -3070,6 +3114,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static SourceRange __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new SourceRange(native.ToPointer(), skipVTables);
             }
 
@@ -3292,6 +3338,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Type __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Type(native.ToPointer(), skipVTables);
                 }
 
@@ -3435,6 +3483,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static TypeQualifiers __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeQualifiers(native.ToPointer(), skipVTables);
                 }
 
@@ -3584,6 +3634,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static QualifiedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new QualifiedType(native.ToPointer(), skipVTables);
                 }
 
@@ -3707,6 +3759,8 @@ public unsafe partial class TagType : global::CppSharp.Parser.AST.Type, IDisposa
 
                 internal static new TagType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TagType(native.ToPointer(), skipVTables);
                 }
 
@@ -3811,6 +3865,8 @@ public enum ArraySize
 
                 internal static new ArrayType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayType(native.ToPointer(), skipVTables);
                 }
 
@@ -3962,6 +4018,8 @@ public unsafe partial class FunctionType : global::CppSharp.Parser.AST.Type, IDi
 
                 internal static new FunctionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionType(native.ToPointer(), skipVTables);
                 }
 
@@ -4039,8 +4097,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Parameter GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -4103,8 +4161,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -4136,6 +4194,8 @@ public enum TypeModifier
 
                 internal static new PointerType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PointerType(native.ToPointer(), skipVTables);
                 }
 
@@ -4243,6 +4303,8 @@ public unsafe partial class MemberPointerType : global::CppSharp.Parser.AST.Type
 
                 internal static new MemberPointerType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MemberPointerType(native.ToPointer(), skipVTables);
                 }
 
@@ -4337,6 +4399,8 @@ public unsafe partial class TypedefType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new TypedefType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefType(native.ToPointer(), skipVTables);
                 }
 
@@ -4431,6 +4495,8 @@ public unsafe partial class AttributedType : global::CppSharp.Parser.AST.Type, I
 
                 internal static new AttributedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AttributedType(native.ToPointer(), skipVTables);
                 }
 
@@ -4542,6 +4608,8 @@ public unsafe partial class DecayedType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new DecayedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DecayedType(native.ToPointer(), skipVTables);
                 }
 
@@ -4697,6 +4765,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static TemplateArgument __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateArgument(native.ToPointer(), skipVTables);
                 }
 
@@ -4863,6 +4933,8 @@ public unsafe partial class TemplateSpecializationType : global::CppSharp.Parser
 
                 internal static new TemplateSpecializationType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateSpecializationType(native.ToPointer(), skipVTables);
                 }
 
@@ -4940,9 +5012,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -4991,8 +5063,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -5031,6 +5103,8 @@ public unsafe partial class DependentTemplateSpecializationType : global::CppSha
 
                 internal static new DependentTemplateSpecializationType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentTemplateSpecializationType(native.ToPointer(), skipVTables);
                 }
 
@@ -5108,9 +5182,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -5145,8 +5219,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -5175,6 +5249,8 @@ public unsafe partial class TemplateParameterType : global::CppSharp.Parser.AST.
 
                 internal static new TemplateParameterType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameterType(native.ToPointer(), skipVTables);
                 }
 
@@ -5323,6 +5399,8 @@ public unsafe partial class TemplateParameterSubstitutionType : global::CppSharp
 
                 internal static new TemplateParameterSubstitutionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameterSubstitutionType(native.ToPointer(), skipVTables);
                 }
 
@@ -5432,6 +5510,8 @@ public unsafe partial class InjectedClassNameType : global::CppSharp.Parser.AST.
 
                 internal static new InjectedClassNameType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InjectedClassNameType(native.ToPointer(), skipVTables);
                 }
 
@@ -5544,6 +5624,8 @@ public unsafe partial class DependentNameType : global::CppSharp.Parser.AST.Type
 
                 internal static new DependentNameType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentNameType(native.ToPointer(), skipVTables);
                 }
 
@@ -5666,6 +5748,8 @@ public unsafe partial class PackExpansionType : global::CppSharp.Parser.AST.Type
 
                 internal static new PackExpansionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PackExpansionType(native.ToPointer(), skipVTables);
                 }
 
@@ -5746,6 +5830,8 @@ public unsafe partial class UnaryTransformType : global::CppSharp.Parser.AST.Typ
 
                 internal static new UnaryTransformType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryTransformType(native.ToPointer(), skipVTables);
                 }
 
@@ -5855,6 +5941,8 @@ public unsafe partial class UnresolvedUsingType : global::CppSharp.Parser.AST.Ty
 
                 internal static new UnresolvedUsingType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedUsingType(native.ToPointer(), skipVTables);
                 }
 
@@ -5949,6 +6037,8 @@ public unsafe partial class VectorType : global::CppSharp.Parser.AST.Type, IDisp
 
                 internal static new VectorType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VectorType(native.ToPointer(), skipVTables);
                 }
 
@@ -6056,6 +6146,8 @@ public unsafe partial class BuiltinType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new BuiltinType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BuiltinType(native.ToPointer(), skipVTables);
                 }
 
@@ -6418,6 +6510,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Declaration __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Declaration(native.ToPointer(), skipVTables);
                 }
 
@@ -6500,8 +6594,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.PreprocessedEntity GetPreprocessedEntities(uint i)
                 {
-                    var __ret = __Internal.GetPreprocessedEntities(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.PreprocessedEntity.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetPreprocessedEntities(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.PreprocessedEntity.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -6521,8 +6615,8 @@ public void ClearPreprocessedEntities()
 
                 public global::CppSharp.Parser.AST.Declaration GetRedeclarations(uint i)
                 {
-                    var __ret = __Internal.GetRedeclarations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetRedeclarations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -6815,8 +6909,8 @@ public uint PreprocessedEntitiesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetPreprocessedEntitiesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetPreprocessedEntitiesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -6824,8 +6918,8 @@ public uint RedeclarationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetRedeclarationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetRedeclarationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -6989,6 +7083,8 @@ public unsafe partial class DeclarationContext : global::CppSharp.Parser.AST.Dec
 
                 internal static new DeclarationContext __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclarationContext(native.ToPointer(), skipVTables);
                 }
 
@@ -7066,8 +7162,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Namespace GetNamespaces(uint i)
                 {
-                    var __ret = __Internal.GetNamespaces(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Namespace.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetNamespaces(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Namespace.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7087,8 +7183,8 @@ public void ClearNamespaces()
 
                 public global::CppSharp.Parser.AST.Enumeration GetEnums(uint i)
                 {
-                    var __ret = __Internal.GetEnums(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetEnums(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7108,8 +7204,8 @@ public void ClearEnums()
 
                 public global::CppSharp.Parser.AST.Function GetFunctions(uint i)
                 {
-                    var __ret = __Internal.GetFunctions(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Function.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFunctions(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Function.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7129,8 +7225,8 @@ public void ClearFunctions()
 
                 public global::CppSharp.Parser.AST.Class GetClasses(uint i)
                 {
-                    var __ret = __Internal.GetClasses(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Class.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetClasses(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Class.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7150,8 +7246,8 @@ public void ClearClasses()
 
                 public global::CppSharp.Parser.AST.Template GetTemplates(uint i)
                 {
-                    var __ret = __Internal.GetTemplates(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Template.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTemplates(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Template.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7171,8 +7267,8 @@ public void ClearTemplates()
 
                 public global::CppSharp.Parser.AST.TypedefDecl GetTypedefs(uint i)
                 {
-                    var __ret = __Internal.GetTypedefs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TypedefDecl.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTypedefs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TypedefDecl.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7192,8 +7288,8 @@ public void ClearTypedefs()
 
                 public global::CppSharp.Parser.AST.TypeAlias GetTypeAliases(uint i)
                 {
-                    var __ret = __Internal.GetTypeAliases(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TypeAlias.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTypeAliases(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TypeAlias.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7213,8 +7309,8 @@ public void ClearTypeAliases()
 
                 public global::CppSharp.Parser.AST.Variable GetVariables(uint i)
                 {
-                    var __ret = __Internal.GetVariables(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Variable.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetVariables(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Variable.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7234,8 +7330,8 @@ public void ClearVariables()
 
                 public global::CppSharp.Parser.AST.Friend GetFriends(uint i)
                 {
-                    var __ret = __Internal.GetFriends(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Friend.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFriends(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Friend.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7275,8 +7371,8 @@ public uint NamespacesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetNamespacesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetNamespacesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7284,8 +7380,8 @@ public uint EnumsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetEnumsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetEnumsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7293,8 +7389,8 @@ public uint FunctionsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFunctionsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFunctionsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7302,8 +7398,8 @@ public uint ClassesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetClassesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetClassesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7311,8 +7407,8 @@ public uint TemplatesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTemplatesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTemplatesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7320,8 +7416,8 @@ public uint TypedefsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTypedefsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTypedefsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7329,8 +7425,8 @@ public uint TypeAliasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTypeAliasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTypeAliasesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7338,8 +7434,8 @@ public uint VariablesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetVariablesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetVariablesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7347,8 +7443,8 @@ public uint FriendsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFriendsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFriendsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -7394,6 +7490,8 @@ public unsafe partial class TypedefNameDecl : global::CppSharp.Parser.AST.Declar
 
                 internal static new TypedefNameDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefNameDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -7531,6 +7629,8 @@ public unsafe partial class TypedefDecl : global::CppSharp.Parser.AST.TypedefNam
 
                 internal static new TypedefDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -7649,6 +7749,8 @@ public unsafe partial class TypeAlias : global::CppSharp.Parser.AST.TypedefNameD
 
                 internal static new TypeAlias __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeAlias(native.ToPointer(), skipVTables);
                 }
 
@@ -7780,6 +7882,8 @@ public unsafe partial class Friend : global::CppSharp.Parser.AST.Declaration, ID
 
                 internal static new Friend __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Friend(native.ToPointer(), skipVTables);
                 }
 
@@ -7909,6 +8013,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static StatementObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StatementObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8057,6 +8163,8 @@ public unsafe partial class ExpressionObsolete : global::CppSharp.Parser.AST.Sta
 
                 internal static new ExpressionObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExpressionObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8162,6 +8270,8 @@ public unsafe partial class BinaryOperatorObsolete : global::CppSharp.Parser.AST
 
                 internal static new BinaryOperatorObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryOperatorObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8324,6 +8434,8 @@ public unsafe partial class CallExprObsolete : global::CppSharp.Parser.AST.Expre
 
                 internal static new CallExprObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CallExprObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8406,8 +8518,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ExpressionObsolete GetArguments(uint i)
                 {
-                    var __ret = __Internal.GetArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -8429,8 +8541,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -8469,6 +8581,8 @@ public unsafe partial class CXXConstructExprObsolete : global::CppSharp.Parser.A
 
                 internal static new CXXConstructExprObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstructExprObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8551,8 +8665,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ExpressionObsolete GetArguments(uint i)
                 {
-                    var __ret = __Internal.GetArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -8574,8 +8688,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -8626,6 +8740,8 @@ public unsafe partial class Parameter : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Parameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Parameter(native.ToPointer(), skipVTables);
                 }
 
@@ -8867,6 +8983,8 @@ public unsafe partial class Function : global::CppSharp.Parser.AST.DeclarationCo
 
                 internal static new Function __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Function(native.ToPointer(), skipVTables);
                 }
 
@@ -8944,8 +9062,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Parameter GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9224,8 +9342,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9324,6 +9442,8 @@ public unsafe partial class Method : global::CppSharp.Parser.AST.Function, IDisp
 
                 internal static new Method __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Method(native.ToPointer(), skipVTables);
                 }
 
@@ -9401,8 +9521,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Method GetOverriddenMethods(uint i)
                 {
-                    var __ret = __Internal.GetOverriddenMethods(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetOverriddenMethods(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9556,8 +9676,8 @@ public uint OverriddenMethodsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetOverriddenMethodsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetOverriddenMethodsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9680,6 +9800,8 @@ public unsafe partial class Item : global::CppSharp.Parser.AST.Declaration, IDis
 
                     internal static new Item __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Item(native.ToPointer(), skipVTables);
                     }
 
@@ -9785,6 +9907,8 @@ public ulong Value
 
                 internal static new Enumeration __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Enumeration(native.ToPointer(), skipVTables);
                 }
 
@@ -9862,8 +9986,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Enumeration.Item GetItems(uint i)
                 {
-                    var __ret = __Internal.GetItems(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetItems(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9886,9 +10010,9 @@ public void ClearItems()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, Name);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindItemByName(__Instance, __arg0);
+                    var ___ret = __Internal.FindItemByName(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9937,8 +10061,8 @@ public uint ItemsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetItemsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetItemsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9987,6 +10111,8 @@ public unsafe partial class Variable : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Variable __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Variable(native.ToPointer(), skipVTables);
                 }
 
@@ -10156,6 +10282,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static BaseClassSpecifier __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BaseClassSpecifier(native.ToPointer(), skipVTables);
                 }
 
@@ -10329,6 +10457,8 @@ public unsafe partial class Field : global::CppSharp.Parser.AST.Declaration, IDi
 
                 internal static new Field __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Field(native.ToPointer(), skipVTables);
                 }
 
@@ -10500,6 +10630,8 @@ public unsafe partial class AccessSpecifierDecl : global::CppSharp.Parser.AST.De
 
                 internal static new AccessSpecifierDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AccessSpecifierDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -10612,6 +10744,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VTableComponent __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VTableComponent(native.ToPointer(), skipVTables);
                 }
 
@@ -10777,6 +10911,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VTableLayout __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VTableLayout(native.ToPointer(), skipVTables);
                 }
 
@@ -10859,8 +10995,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VTableComponent GetComponents(uint i)
                 {
-                    var __ret = __Internal.GetComponents(__Instance, i);
-                    return global::CppSharp.Parser.AST.VTableComponent.__CreateInstance(__ret);
+                    var ___ret = __Internal.GetComponents(__Instance, i);
+                    return global::CppSharp.Parser.AST.VTableComponent.__CreateInstance(___ret);
                 }
 
                 public void AddComponents(global::CppSharp.Parser.AST.VTableComponent s)
@@ -10880,8 +11016,8 @@ public uint ComponentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetComponentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetComponentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -10926,6 +11062,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VFTableInfo __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VFTableInfo(native.ToPointer(), skipVTables);
                 }
 
@@ -11101,6 +11239,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static LayoutField __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LayoutField(native.ToPointer(), skipVTables);
                 }
 
@@ -11275,6 +11415,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static LayoutBase __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LayoutBase(native.ToPointer(), skipVTables);
                 }
 
@@ -11466,6 +11608,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static ClassLayout __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassLayout(native.ToPointer(), skipVTables);
                 }
 
@@ -11548,11 +11692,11 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VFTableInfo GetVFTables(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.VFTableInfo.__Internal();
-                    __Internal.GetVFTables(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.VFTableInfo.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.VFTableInfo.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.VFTableInfo.__Internal();
+                    __Internal.GetVFTables(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.VFTableInfo.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.VFTableInfo.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddVFTables(global::CppSharp.Parser.AST.VFTableInfo s)
@@ -11570,11 +11714,11 @@ public void ClearVFTables()
 
                 public global::CppSharp.Parser.AST.LayoutField GetFields(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.LayoutField.__Internal();
-                    __Internal.GetFields(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.LayoutField.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.LayoutField.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.LayoutField.__Internal();
+                    __Internal.GetFields(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.LayoutField.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.LayoutField.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddFields(global::CppSharp.Parser.AST.LayoutField s)
@@ -11592,11 +11736,11 @@ public void ClearFields()
 
                 public global::CppSharp.Parser.AST.LayoutBase GetBases(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.LayoutBase.__Internal();
-                    __Internal.GetBases(new IntPtr(&__ret), __Instance, i);
-                    var ____ret = global::CppSharp.Parser.AST.LayoutBase.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.LayoutBase.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.LayoutBase.__Internal();
+                    __Internal.GetBases(new IntPtr(&___ret), __Instance, i);
+                    var _____ret = global::CppSharp.Parser.AST.LayoutBase.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.LayoutBase.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddBases(global::CppSharp.Parser.AST.LayoutBase s)
@@ -11722,8 +11866,8 @@ public uint VFTablesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetVFTablesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetVFTablesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -11731,8 +11875,8 @@ public uint FieldsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFieldsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFieldsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -11740,8 +11884,8 @@ public uint BasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBasesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -11861,6 +12005,8 @@ public unsafe partial class Class : global::CppSharp.Parser.AST.DeclarationConte
 
                 internal static new Class __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Class(native.ToPointer(), skipVTables);
                 }
 
@@ -11938,8 +12084,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BaseClassSpecifier GetBases(uint i)
                 {
-                    var __ret = __Internal.GetBases(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.BaseClassSpecifier.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetBases(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.BaseClassSpecifier.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -11959,8 +12105,8 @@ public void ClearBases()
 
                 public global::CppSharp.Parser.AST.Field GetFields(uint i)
                 {
-                    var __ret = __Internal.GetFields(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Field.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFields(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Field.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -11980,8 +12126,8 @@ public void ClearFields()
 
                 public global::CppSharp.Parser.AST.Method GetMethods(uint i)
                 {
-                    var __ret = __Internal.GetMethods(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetMethods(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12001,8 +12147,8 @@ public void ClearMethods()
 
                 public global::CppSharp.Parser.AST.AccessSpecifierDecl GetSpecifiers(uint i)
                 {
-                    var __ret = __Internal.GetSpecifiers(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.AccessSpecifierDecl.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecifiers(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.AccessSpecifierDecl.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12181,8 +12327,8 @@ public uint BasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBasesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12190,8 +12336,8 @@ public uint FieldsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFieldsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFieldsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12199,8 +12345,8 @@ public uint MethodsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetMethodsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetMethodsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12208,8 +12354,8 @@ public uint SpecifiersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecifiersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecifiersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -12271,6 +12417,8 @@ public unsafe partial class Template : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Template __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Template(native.ToPointer(), skipVTables);
                 }
 
@@ -12357,8 +12505,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Declaration GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12399,8 +12547,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -12447,6 +12595,8 @@ public unsafe partial class TypeAliasTemplate : global::CppSharp.Parser.AST.Temp
 
                 internal static new TypeAliasTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeAliasTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -12566,6 +12716,8 @@ public unsafe partial class TemplateParameter : global::CppSharp.Parser.AST.Decl
 
                 internal static new TemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12731,6 +12883,8 @@ public unsafe partial class TemplateTemplateParameter : global::CppSharp.Parser.
 
                 internal static new TemplateTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12890,6 +13044,8 @@ public unsafe partial class TypeTemplateParameter : global::CppSharp.Parser.AST.
 
                 internal static new TypeTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12983,7 +13139,7 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
             public unsafe partial class NonTypeTemplateParameter : global::CppSharp.Parser.AST.TemplateParameter, IDisposable
             {
-                [StructLayout(LayoutKind.Sequential, Size = 192)]
+                [StructLayout(LayoutKind.Sequential, Size = 208)]
                 public new partial struct __Internal
                 {
                     internal global::CppSharp.Parser.AST.DeclarationKind kind;
@@ -13030,6 +13186,8 @@ public unsafe partial class NonTypeTemplateParameter : global::CppSharp.Parser.A
 
                 internal static new NonTypeTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NonTypeTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -13249,6 +13407,8 @@ public unsafe partial class ClassTemplate : global::CppSharp.Parser.AST.Template
 
                 internal static new ClassTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -13326,8 +13486,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ClassTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13350,9 +13510,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13361,9 +13521,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplatePartialSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplatePartialSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13371,8 +13531,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13459,6 +13619,8 @@ public unsafe partial class ClassTemplateSpecialization : global::CppSharp.Parse
 
                 internal static new ClassTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -13536,9 +13698,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -13585,8 +13747,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13661,6 +13823,8 @@ public unsafe partial class ClassTemplatePartialSpecialization : global::CppShar
 
                 internal static new ClassTemplatePartialSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplatePartialSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -13795,6 +13959,8 @@ public unsafe partial class FunctionTemplate : global::CppSharp.Parser.AST.Templ
 
                 internal static new FunctionTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -13872,8 +14038,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.FunctionTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13896,9 +14062,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13906,8 +14072,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13964,6 +14130,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static FunctionTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14046,9 +14214,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -14109,8 +14277,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14176,6 +14344,8 @@ public unsafe partial class VarTemplate : global::CppSharp.Parser.AST.Template,
 
                 internal static new VarTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -14253,8 +14423,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VarTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14277,9 +14447,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14288,9 +14458,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplatePartialSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplatePartialSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14298,8 +14468,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14363,6 +14533,8 @@ public unsafe partial class VarTemplateSpecialization : global::CppSharp.Parser.
 
                 internal static new VarTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14440,9 +14612,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(new IntPtr(&__ret), __Instance, i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(new IntPtr(&___ret), __Instance, i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -14489,8 +14661,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14542,6 +14714,8 @@ public unsafe partial class VarTemplatePartialSpecialization : global::CppSharp.
 
                 internal static new VarTemplatePartialSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplatePartialSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14658,6 +14832,8 @@ public unsafe partial class UnresolvedUsingTypename : global::CppSharp.Parser.AS
 
                 internal static new UnresolvedUsingTypename __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedUsingTypename(native.ToPointer(), skipVTables);
                 }
 
@@ -14786,6 +14962,8 @@ public unsafe partial class Namespace : global::CppSharp.Parser.AST.DeclarationC
 
                 internal static new Namespace __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Namespace(native.ToPointer(), skipVTables);
                 }
 
@@ -14911,6 +15089,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static PreprocessedEntity __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PreprocessedEntity(native.ToPointer(), skipVTables);
                 }
 
@@ -15051,6 +15231,8 @@ public unsafe partial class MacroDefinition : global::CppSharp.Parser.AST.Prepro
 
                 internal static new MacroDefinition __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MacroDefinition(native.ToPointer(), skipVTables);
                 }
 
@@ -15205,6 +15387,8 @@ public unsafe partial class MacroExpansion : global::CppSharp.Parser.AST.Preproc
 
                 internal static new MacroExpansion __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MacroExpansion(native.ToPointer(), skipVTables);
                 }
 
@@ -15390,6 +15574,8 @@ public unsafe partial class TranslationUnit : global::CppSharp.Parser.AST.Namesp
 
                 internal static new TranslationUnit __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TranslationUnit(native.ToPointer(), skipVTables);
                 }
 
@@ -15467,8 +15653,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.MacroDefinition GetMacros(uint i)
                 {
-                    var __ret = __Internal.GetMacros(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.MacroDefinition.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetMacros(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.MacroDefinition.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -15517,8 +15703,8 @@ public uint MacrosCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetMacrosCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetMacrosCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -15575,6 +15761,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static ASTContext __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ASTContext(native.ToPointer(), skipVTables);
                 }
 
@@ -15660,16 +15848,16 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, File);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindOrCreateModule(__Instance, __arg0);
+                    var ___ret = __Internal.FindOrCreateModule(__Instance, __arg0);
                     __basicString0.Dispose(disposing: true, callNativeDtor:false);
-                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
                 public global::CppSharp.Parser.AST.TranslationUnit GetTranslationUnits(uint i)
                 {
-                    var __ret = __Internal.GetTranslationUnits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTranslationUnits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -15691,8 +15879,8 @@ public uint TranslationUnitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTranslationUnitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTranslationUnitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -15876,6 +16064,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Stmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Stmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16056,6 +16246,8 @@ public unsafe partial class DeclStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new DeclStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16133,8 +16325,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Declaration Getdecls(uint i)
                 {
-                    var __ret = __Internal.Getdecls(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getdecls(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -16183,8 +16375,8 @@ public uint GetdeclsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetdeclsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetdeclsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -16210,6 +16402,8 @@ public unsafe partial class NullStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new NullStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NullStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16335,6 +16529,8 @@ public unsafe partial class CompoundStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new CompoundStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16412,8 +16608,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Stmt Getbody(uint i)
                 {
-                    var __ret = __Internal.Getbody(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Stmt.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getbody(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Stmt.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -16515,8 +16711,8 @@ public uint GetbodyCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetbodyCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetbodyCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -16546,6 +16742,8 @@ public unsafe partial class SwitchCase : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SwitchCase __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SwitchCase(native.ToPointer(), skipVTables);
                 }
 
@@ -16685,6 +16883,8 @@ public unsafe partial class CaseStmt : global::CppSharp.Parser.AST.SwitchCase, I
 
                 internal static new CaseStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CaseStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16833,6 +17033,8 @@ public unsafe partial class DefaultStmt : global::CppSharp.Parser.AST.SwitchCase
 
                 internal static new DefaultStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DefaultStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16927,6 +17129,8 @@ public unsafe partial class LabelStmt : global::CppSharp.Parser.AST.Stmt, IDispo
                 private bool __name_OwnsNativeMemory = false;
                 internal static new LabelStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LabelStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17060,6 +17264,8 @@ public unsafe partial class AttributedStmt : global::CppSharp.Parser.AST.Stmt, I
 
                 internal static new AttributedStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AttributedStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17176,6 +17382,8 @@ public unsafe partial class IfStmt : global::CppSharp.Parser.AST.Stmt, IDisposab
 
                 internal static new IfStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IfStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17422,6 +17630,8 @@ public unsafe partial class SwitchStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SwitchStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SwitchStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17612,6 +17822,8 @@ public unsafe partial class WhileStmt : global::CppSharp.Parser.AST.Stmt, IDispo
 
                 internal static new WhileStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new WhileStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17762,6 +17974,8 @@ public unsafe partial class DoStmt : global::CppSharp.Parser.AST.Stmt, IDisposab
 
                 internal static new DoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17914,6 +18128,8 @@ public unsafe partial class ForStmt : global::CppSharp.Parser.AST.Stmt, IDisposa
 
                 internal static new ForStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ForStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18102,6 +18318,8 @@ public unsafe partial class GotoStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new GotoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GotoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18208,6 +18426,8 @@ public unsafe partial class IndirectGotoStmt : global::CppSharp.Parser.AST.Stmt,
 
                 internal static new IndirectGotoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IndirectGotoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18326,6 +18546,8 @@ public unsafe partial class ContinueStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new ContinueStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ContinueStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18417,6 +18639,8 @@ public unsafe partial class BreakStmt : global::CppSharp.Parser.AST.Stmt, IDispo
 
                 internal static new BreakStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BreakStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18509,6 +18733,8 @@ public unsafe partial class ReturnStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new ReturnStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ReturnStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18652,6 +18878,8 @@ public unsafe partial class AsmStmt : global::CppSharp.Parser.AST.Stmt, IDisposa
 
                 internal static new AsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18738,8 +18966,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getinputs(uint i)
                 {
-                    var __ret = __Internal.Getinputs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getinputs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -18759,8 +18987,8 @@ public void Clearinputs()
 
                 public global::CppSharp.Parser.AST.Expr Getoutputs(uint i)
                 {
-                    var __ret = __Internal.Getoutputs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getoutputs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -18878,8 +19106,8 @@ public uint GetinputsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetinputsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetinputsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -18887,8 +19115,8 @@ public uint GetoutputsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetoutputsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetoutputsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -18970,6 +19198,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static AsmStringPiece __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new AsmStringPiece(native.ToPointer(), skipVTables);
                     }
 
@@ -19119,6 +19349,8 @@ public sbyte Modifier
 
                 internal static new GCCAsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GCCAsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19243,6 +19475,8 @@ public unsafe partial class MSAsmStmt : global::CppSharp.Parser.AST.AsmStmt, IDi
 
                 internal static new MSAsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSAsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19394,6 +19628,8 @@ public unsafe partial class SEHExceptStmt : global::CppSharp.Parser.AST.Stmt, ID
 
                 internal static new SEHExceptStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHExceptStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19514,6 +19750,8 @@ public unsafe partial class SEHFinallyStmt : global::CppSharp.Parser.AST.Stmt, I
 
                 internal static new SEHFinallyStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHFinallyStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19624,6 +19862,8 @@ public unsafe partial class SEHTryStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SEHTryStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHTryStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19784,6 +20024,8 @@ public unsafe partial class SEHLeaveStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new SEHLeaveStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHLeaveStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19937,6 +20179,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Capture __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Capture(native.ToPointer(), skipVTables);
                     }
 
@@ -20093,6 +20337,8 @@ public bool CapturesVariableArrayType
 
                 internal static new CapturedStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CapturedStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20170,8 +20416,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetcaptureInits(uint i)
                 {
-                    var __ret = __Internal.GetcaptureInits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetcaptureInits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -20220,8 +20466,8 @@ public uint GetcaptureInitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetcaptureInitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetcaptureInitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -20248,6 +20494,8 @@ public unsafe partial class CXXCatchStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new CXXCatchStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXCatchStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20370,6 +20618,8 @@ public unsafe partial class CXXTryStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new CXXTryStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTryStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20500,6 +20750,8 @@ public unsafe partial class CXXForRangeStmt : global::CppSharp.Parser.AST.Stmt,
 
                 internal static new CXXForRangeStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXForRangeStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20759,6 +21011,8 @@ public unsafe partial class MSDependentExistsStmt : global::CppSharp.Parser.AST.
 
                 internal static new MSDependentExistsStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSDependentExistsStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20949,6 +21203,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static CtorArgs __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new CtorArgs(native.ToPointer(), skipVTables);
                     }
 
@@ -21027,6 +21283,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new CoroutineBodyStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoroutineBodyStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -21296,6 +21554,8 @@ public enum SubStmt
 
                 internal static new CoreturnStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoreturnStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -21771,6 +22031,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Classification __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Classification(native.ToPointer(), skipVTables);
                     }
 
@@ -21953,6 +22215,8 @@ public bool IsModifiable
 
                 internal static new Expr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Expr(native.ToPointer(), skipVTables);
                 }
 
@@ -22248,6 +22512,8 @@ public unsafe partial class FullExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new FullExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FullExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22368,6 +22634,8 @@ public unsafe partial class ConstantExpr : global::CppSharp.Parser.AST.FullExpr,
 
                 internal static new ConstantExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConstantExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22462,6 +22730,8 @@ public unsafe partial class OpaqueValueExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new OpaqueValueExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OpaqueValueExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22605,6 +22875,8 @@ public unsafe partial class DeclRefExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new DeclRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22855,6 +23127,8 @@ public unsafe partial class IntegerLiteral : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new IntegerLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IntegerLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -22974,6 +23248,8 @@ public unsafe partial class FixedPointLiteral : global::CppSharp.Parser.AST.Expr
 
                 internal static new FixedPointLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FixedPointLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23103,6 +23379,8 @@ public enum CharacterKind
 
                 internal static new CharacterLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CharacterLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23236,6 +23514,8 @@ public unsafe partial class FloatingLiteral : global::CppSharp.Parser.AST.Expr,
 
                 internal static new FloatingLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FloatingLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23367,6 +23647,8 @@ public unsafe partial class ImaginaryLiteral : global::CppSharp.Parser.AST.Expr,
 
                 internal static new ImaginaryLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImaginaryLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23499,6 +23781,8 @@ public enum StringKind
 
                 internal static new StringLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StringLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23819,6 +24103,8 @@ public enum IdentKind
 
                 internal static new PredefinedExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PredefinedExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -23939,6 +24225,8 @@ public unsafe partial class ParenExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new ParenExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParenExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24081,6 +24369,8 @@ public unsafe partial class UnaryOperator : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new UnaryOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -24320,6 +24610,8 @@ public unsafe partial class OffsetOfExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new OffsetOfExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OffsetOfExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24470,6 +24762,8 @@ public unsafe partial class UnaryExprOrTypeTraitExpr : global::CppSharp.Parser.A
 
                 internal static new UnaryExprOrTypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryExprOrTypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24662,6 +24956,8 @@ public unsafe partial class ArraySubscriptExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArraySubscriptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArraySubscriptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24849,6 +25145,8 @@ public unsafe partial class CallExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new CallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24935,8 +25233,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -25070,8 +25368,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -25122,6 +25420,8 @@ public unsafe partial class MemberExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new MemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25386,6 +25686,8 @@ public unsafe partial class CompoundLiteralExpr : global::CppSharp.Parser.AST.Ex
 
                 internal static new CompoundLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25528,6 +25830,8 @@ public unsafe partial class CastExpr : global::CppSharp.Parser.AST.Expr, IDispos
                 private bool __castKindName_OwnsNativeMemory = false;
                 internal static new CastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25754,6 +26058,8 @@ public enum OnStack_t
 
                 internal static new ImplicitCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImplicitCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25869,6 +26175,8 @@ public unsafe partial class ExplicitCastExpr : global::CppSharp.Parser.AST.CastE
 
                 internal static new ExplicitCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExplicitCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25999,6 +26307,8 @@ public unsafe partial class CStyleCastExpr : global::CppSharp.Parser.AST.Explici
 
                 internal static new CStyleCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CStyleCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -26141,6 +26451,8 @@ public unsafe partial class BinaryOperator : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new BinaryOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26538,6 +26850,8 @@ public unsafe partial class CompoundAssignOperator : global::CppSharp.Parser.AST
 
                 internal static new CompoundAssignOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundAssignOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26685,6 +26999,8 @@ public unsafe partial class AbstractConditionalOperator : global::CppSharp.Parse
 
                 internal static new AbstractConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AbstractConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26865,6 +27181,8 @@ public unsafe partial class ConditionalOperator : global::CppSharp.Parser.AST.Ab
 
                 internal static new ConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26991,6 +27309,8 @@ public unsafe partial class BinaryConditionalOperator : global::CppSharp.Parser.
 
                 internal static new BinaryConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -27112,6 +27432,8 @@ public unsafe partial class AddrLabelExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new AddrLabelExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AddrLabelExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27232,6 +27554,8 @@ public unsafe partial class StmtExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new StmtExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StmtExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27366,6 +27690,8 @@ public unsafe partial class ShuffleVectorExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ShuffleVectorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ShuffleVectorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27499,6 +27825,8 @@ public unsafe partial class ConvertVectorExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ConvertVectorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConvertVectorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27638,6 +27966,8 @@ public unsafe partial class ChooseExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new ChooseExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ChooseExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27838,6 +28168,8 @@ public unsafe partial class GNUNullExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new GNUNullExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GNUNullExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27946,6 +28278,8 @@ public unsafe partial class VAArgExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new VAArgExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VAArgExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -28102,6 +28436,8 @@ public unsafe partial class InitListExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new InitListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InitListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -28400,6 +28736,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Designator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Designator(native.ToPointer(), skipVTables);
                     }
 
@@ -28654,6 +28992,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static FieldDesignator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new FieldDesignator(native.ToPointer(), skipVTables);
                     }
 
@@ -28762,6 +29102,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static ArrayOrRangeDesignator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new ArrayOrRangeDesignator(native.ToPointer(), skipVTables);
                     }
 
@@ -28840,6 +29182,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new DesignatedInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DesignatedInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29012,6 +29356,8 @@ public unsafe partial class NoInitExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new NoInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NoInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29105,6 +29451,8 @@ public unsafe partial class DesignatedInitUpdateExpr : global::CppSharp.Parser.A
 
                 internal static new DesignatedInitUpdateExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DesignatedInitUpdateExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29226,6 +29574,8 @@ public unsafe partial class ArrayInitLoopExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ArrayInitLoopExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayInitLoopExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29345,6 +29695,8 @@ public unsafe partial class ArrayInitIndexExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArrayInitIndexExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayInitIndexExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29436,6 +29788,8 @@ public unsafe partial class ImplicitValueInitExpr : global::CppSharp.Parser.AST.
 
                 internal static new ImplicitValueInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImplicitValueInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29530,6 +29884,8 @@ public unsafe partial class ParenListExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new ParenListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParenListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29668,6 +30024,8 @@ public unsafe partial class GenericSelectionExpr : global::CppSharp.Parser.AST.E
 
                 internal static new GenericSelectionExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GenericSelectionExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29870,6 +30228,8 @@ public unsafe partial class ExtVectorElementExpr : global::CppSharp.Parser.AST.E
 
                 internal static new ExtVectorElementExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExtVectorElementExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30029,6 +30389,8 @@ public unsafe partial class BlockExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new BlockExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30150,6 +30512,8 @@ public unsafe partial class AsTypeExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new AsTypeExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AsTypeExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30285,6 +30649,8 @@ public unsafe partial class PseudoObjectExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new PseudoObjectExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PseudoObjectExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30495,6 +30861,8 @@ public enum AtomicOp
 
                 internal static new AtomicExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AtomicExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30790,6 +31158,8 @@ public unsafe partial class TypoExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new TypoExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypoExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30897,6 +31267,8 @@ public unsafe partial class CXXOperatorCallExpr : global::CppSharp.Parser.AST.Ca
 
                 internal static new CXXOperatorCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXOperatorCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31072,6 +31444,8 @@ public unsafe partial class CXXMemberCallExpr : global::CppSharp.Parser.AST.Call
 
                 internal static new CXXMemberCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXMemberCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31222,6 +31596,8 @@ public unsafe partial class CUDAKernelCallExpr : global::CppSharp.Parser.AST.Cal
 
                 internal static new CUDAKernelCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CUDAKernelCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31361,6 +31737,8 @@ public unsafe partial class CXXNamedCastExpr : global::CppSharp.Parser.AST.Expli
                 private bool __castName_OwnsNativeMemory = false;
                 internal static new CXXNamedCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNamedCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31546,6 +31924,8 @@ public unsafe partial class CXXStaticCastExpr : global::CppSharp.Parser.AST.CXXN
 
                 internal static new CXXStaticCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXStaticCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31650,6 +32030,8 @@ public unsafe partial class CXXDynamicCastExpr : global::CppSharp.Parser.AST.CXX
 
                 internal static new CXXDynamicCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDynamicCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31766,6 +32148,8 @@ public unsafe partial class CXXReinterpretCastExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXReinterpretCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXReinterpretCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31869,6 +32253,8 @@ public unsafe partial class CXXConstCastExpr : global::CppSharp.Parser.AST.CXXNa
 
                 internal static new CXXConstCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31985,6 +32371,8 @@ public enum LiteralOperatorKind
 
                 internal static new UserDefinedLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UserDefinedLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -32136,6 +32524,8 @@ public unsafe partial class CXXBoolLiteralExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new CXXBoolLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXBoolLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32254,6 +32644,8 @@ public unsafe partial class CXXNullPtrLiteralExpr : global::CppSharp.Parser.AST.
 
                 internal static new CXXNullPtrLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNullPtrLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32359,6 +32751,8 @@ public unsafe partial class CXXStdInitializerListExpr : global::CppSharp.Parser.
 
                 internal static new CXXStdInitializerListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXStdInitializerListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32467,6 +32861,8 @@ public unsafe partial class CXXTypeidExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXTypeidExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTypeidExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32602,6 +32998,8 @@ public unsafe partial class MSPropertyRefExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new MSPropertyRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSPropertyRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32749,6 +33147,8 @@ public unsafe partial class MSPropertySubscriptExpr : global::CppSharp.Parser.AS
 
                 internal static new MSPropertySubscriptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSPropertySubscriptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32887,6 +33287,8 @@ public unsafe partial class CXXUuidofExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXUuidofExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXUuidofExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33039,6 +33441,8 @@ public unsafe partial class CXXThisExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new CXXThisExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXThisExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33159,6 +33563,8 @@ public unsafe partial class CXXThrowExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new CXXThrowExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXThrowExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33292,6 +33698,8 @@ public unsafe partial class CXXDefaultArgExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new CXXDefaultArgExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDefaultArgExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33412,6 +33820,8 @@ public unsafe partial class CXXDefaultInitExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new CXXDefaultInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDefaultInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33532,6 +33942,8 @@ public unsafe partial class CXXBindTemporaryExpr : global::CppSharp.Parser.AST.E
 
                 internal static new CXXBindTemporaryExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXBindTemporaryExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33672,6 +34084,8 @@ public enum ConstructionKind
 
                 internal static new CXXConstructExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstructExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33758,8 +34172,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -33892,8 +34306,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -33934,6 +34348,8 @@ public unsafe partial class CXXInheritedCtorInitExpr : global::CppSharp.Parser.A
 
                 internal static new CXXInheritedCtorInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXInheritedCtorInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34075,6 +34491,8 @@ public unsafe partial class CXXFunctionalCastExpr : global::CppSharp.Parser.AST.
 
                 internal static new CXXFunctionalCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXFunctionalCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34217,6 +34635,8 @@ public unsafe partial class CXXTemporaryObjectExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXTemporaryObjectExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTemporaryObjectExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34351,6 +34771,8 @@ public unsafe partial class LambdaExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new LambdaExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LambdaExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34428,8 +34850,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetcaptureInits(uint i)
                 {
-                    var __ret = __Internal.GetcaptureInits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetcaptureInits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -34572,8 +34994,8 @@ public uint GetcaptureInitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetcaptureInitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetcaptureInitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -34612,6 +35034,8 @@ public unsafe partial class CXXScalarValueInitExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXScalarValueInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXScalarValueInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34753,6 +35177,8 @@ public enum InitializationStyle
 
                 internal static new CXXNewExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNewExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34830,8 +35256,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetplacementArguments(uint i)
                 {
-                    var __ret = __Internal.GetplacementArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetplacementArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -35046,8 +35472,8 @@ public uint GetplacementArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetplacementArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetplacementArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -35091,6 +35517,8 @@ public unsafe partial class CXXDeleteExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXDeleteExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDeleteExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35272,6 +35700,8 @@ public unsafe partial class CXXPseudoDestructorExpr : global::CppSharp.Parser.AS
 
                 internal static new CXXPseudoDestructorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXPseudoDestructorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35472,6 +35902,8 @@ public unsafe partial class TypeTraitExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new TypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35592,6 +36024,8 @@ public unsafe partial class ArrayTypeTraitExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArrayTypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayTypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35727,6 +36161,8 @@ public unsafe partial class ExpressionTraitExpr : global::CppSharp.Parser.AST.Ex
 
                 internal static new ExpressionTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExpressionTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35886,6 +36322,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static FindResult __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new FindResult(native.ToPointer(), skipVTables);
                     }
 
@@ -35964,6 +36402,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new OverloadExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OverloadExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36183,6 +36623,8 @@ public unsafe partial class UnresolvedLookupExpr : global::CppSharp.Parser.AST.O
 
                 internal static new UnresolvedLookupExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedLookupExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36307,6 +36749,8 @@ public unsafe partial class DependentScopeDeclRefExpr : global::CppSharp.Parser.
 
                 internal static new DependentScopeDeclRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentScopeDeclRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36492,6 +36936,8 @@ public unsafe partial class ExprWithCleanups : global::CppSharp.Parser.AST.FullE
 
                 internal static new ExprWithCleanups __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExprWithCleanups(native.ToPointer(), skipVTables);
                 }
 
@@ -36630,6 +37076,8 @@ public unsafe partial class CXXUnresolvedConstructExpr : global::CppSharp.Parser
 
                 internal static new CXXUnresolvedConstructExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXUnresolvedConstructExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36707,8 +37155,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -36797,8 +37245,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -36849,6 +37297,8 @@ public unsafe partial class CXXDependentScopeMemberExpr : global::CppSharp.Parse
 
                 internal static new CXXDependentScopeMemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDependentScopeMemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37128,6 +37578,8 @@ public unsafe partial class UnresolvedMemberExpr : global::CppSharp.Parser.AST.O
 
                 internal static new UnresolvedMemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedMemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37315,6 +37767,8 @@ public unsafe partial class CXXNoexceptExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new CXXNoexceptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNoexceptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37435,6 +37889,8 @@ public unsafe partial class PackExpansionExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new PackExpansionExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PackExpansionExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37559,6 +38015,8 @@ public unsafe partial class SizeOfPackExpr : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new SizeOfPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SizeOfPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37731,6 +38189,8 @@ public unsafe partial class SubstNonTypeTemplateParmExpr : global::CppSharp.Pars
 
                 internal static new SubstNonTypeTemplateParmExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SubstNonTypeTemplateParmExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37851,6 +38311,8 @@ public unsafe partial class SubstNonTypeTemplateParmPackExpr : global::CppSharp.
 
                 internal static new SubstNonTypeTemplateParmPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SubstNonTypeTemplateParmPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37972,6 +38434,8 @@ public unsafe partial class FunctionParmPackExpr : global::CppSharp.Parser.AST.E
 
                 internal static new FunctionParmPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionParmPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38123,6 +38587,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static ExtraState __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new ExtraState(native.ToPointer(), skipVTables);
                     }
 
@@ -38201,6 +38667,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new MaterializeTemporaryExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MaterializeTemporaryExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38354,6 +38822,8 @@ public unsafe partial class CXXFoldExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new CXXFoldExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXFoldExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38571,6 +39041,8 @@ public enum SubExpr
 
                 internal static new CoroutineSuspendExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoroutineSuspendExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38767,6 +39239,8 @@ public unsafe partial class CoawaitExpr : global::CppSharp.Parser.AST.CoroutineS
 
                 internal static new CoawaitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoawaitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38888,6 +39362,8 @@ public unsafe partial class DependentCoawaitExpr : global::CppSharp.Parser.AST.E
 
                 internal static new DependentCoawaitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentCoawaitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -39027,6 +39503,8 @@ public unsafe partial class CoyieldExpr : global::CppSharp.Parser.AST.CoroutineS
 
                 internal static new CoyieldExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoyieldExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -39198,6 +39676,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserTargetInfo __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserTargetInfo(native.ToPointer(), skipVTables);
             }
 
@@ -39870,6 +40350,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static Parser __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new Parser(native.ToPointer(), skipVTables);
             }
 
@@ -40080,6 +40562,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static CppParserOptions __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new CppParserOptions(native.ToPointer(), skipVTables);
             }
 
@@ -40162,8 +40646,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public string GetArguments(uint i)
             {
-                var __ret = __Internal.GetArguments(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetArguments(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddArguments(string s)
@@ -40178,8 +40662,8 @@ public void ClearArguments()
 
             public string GetCompilationOptions(uint i)
             {
-                var __ret = __Internal.GetCompilationOptions(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetCompilationOptions(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddCompilationOptions(string s)
@@ -40194,8 +40678,8 @@ public void ClearCompilationOptions()
 
             public string GetSourceFiles(uint i)
             {
-                var __ret = __Internal.GetSourceFiles(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSourceFiles(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSourceFiles(string s)
@@ -40210,8 +40694,8 @@ public void ClearSourceFiles()
 
             public string GetIncludeDirs(uint i)
             {
-                var __ret = __Internal.GetIncludeDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetIncludeDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddIncludeDirs(string s)
@@ -40226,8 +40710,8 @@ public void ClearIncludeDirs()
 
             public string GetSystemIncludeDirs(uint i)
             {
-                var __ret = __Internal.GetSystemIncludeDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSystemIncludeDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSystemIncludeDirs(string s)
@@ -40242,8 +40726,8 @@ public void ClearSystemIncludeDirs()
 
             public string GetDefines(uint i)
             {
-                var __ret = __Internal.GetDefines(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetDefines(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddDefines(string s)
@@ -40258,8 +40742,8 @@ public void ClearDefines()
 
             public string GetUndefines(uint i)
             {
-                var __ret = __Internal.GetUndefines(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetUndefines(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddUndefines(string s)
@@ -40274,8 +40758,8 @@ public void ClearUndefines()
 
             public string GetSupportedStdTypes(uint i)
             {
-                var __ret = __Internal.GetSupportedStdTypes(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSupportedStdTypes(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSupportedStdTypes(string s)
@@ -40290,8 +40774,8 @@ public void ClearSupportedStdTypes()
 
             public string GetSupportedFunctionTemplates(uint i)
             {
-                var __ret = __Internal.GetSupportedFunctionTemplates(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSupportedFunctionTemplates(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSupportedFunctionTemplates(string s)
@@ -40453,9 +40937,9 @@ public string ClangVersion
             {
                 get
                 {
-                    var __ret = new global::Std.BasicString.__Internal();
-                    __Internal.GetClangVersion(new IntPtr(&__ret), __Instance);
-                    var __basicStringRet0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__CreateInstance(new __IntPtr(&__ret));
+                    var ___ret = new global::Std.BasicString.__Internal();
+                    __Internal.GetClangVersion(new IntPtr(&___ret), __Instance);
+                    var __basicStringRet0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__CreateInstance(new __IntPtr(&___ret));
                     var __retString0 = global::Std.BasicStringExtensions.Data(__basicStringRet0);
                     __basicStringRet0.Dispose();
                     return __retString0;
@@ -40466,8 +40950,8 @@ public uint ArgumentsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetArgumentsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetArgumentsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40475,8 +40959,8 @@ public uint CompilationOptionsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetCompilationOptionsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetCompilationOptionsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40484,8 +40968,8 @@ public uint SourceFilesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSourceFilesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSourceFilesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40493,8 +40977,8 @@ public uint IncludeDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetIncludeDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetIncludeDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40502,8 +40986,8 @@ public uint SystemIncludeDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSystemIncludeDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSystemIncludeDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40511,8 +40995,8 @@ public uint DefinesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetDefinesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetDefinesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40520,8 +41004,8 @@ public uint UndefinesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetUndefinesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetUndefinesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40529,8 +41013,8 @@ public uint SupportedStdTypesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSupportedStdTypesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSupportedStdTypesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40538,8 +41022,8 @@ public uint SupportedFunctionTemplatesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSupportedFunctionTemplatesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSupportedFunctionTemplatesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -40619,6 +41103,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static CppLinkerOptions __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new CppLinkerOptions(native.ToPointer(), skipVTables);
             }
 
@@ -40701,8 +41187,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public string GetArguments(uint i)
             {
-                var __ret = __Internal.GetArguments(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetArguments(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddArguments(string s)
@@ -40717,8 +41203,8 @@ public void ClearArguments()
 
             public string GetLibraryDirs(uint i)
             {
-                var __ret = __Internal.GetLibraryDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetLibraryDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddLibraryDirs(string s)
@@ -40733,8 +41219,8 @@ public void ClearLibraryDirs()
 
             public string GetLibraries(uint i)
             {
-                var __ret = __Internal.GetLibraries(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetLibraries(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddLibraries(string s)
@@ -40751,8 +41237,8 @@ public uint ArgumentsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetArgumentsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetArgumentsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40760,8 +41246,8 @@ public uint LibraryDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibraryDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibraryDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40769,8 +41255,8 @@ public uint LibrariesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibrariesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibrariesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -40816,6 +41302,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserDiagnostic __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserDiagnostic(native.ToPointer(), skipVTables);
             }
 
@@ -41028,6 +41516,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserResult __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserResult(native.ToPointer(), skipVTables);
             }
 
@@ -41110,11 +41600,11 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public global::CppSharp.Parser.ParserDiagnostic GetDiagnostics(uint i)
             {
-                var __ret = new global::CppSharp.Parser.ParserDiagnostic.__Internal();
-                __Internal.GetDiagnostics(new IntPtr(&__ret), __Instance, i);
-                var ____ret = global::CppSharp.Parser.ParserDiagnostic.__CreateInstance(__ret);
-                global::CppSharp.Parser.ParserDiagnostic.__Internal.dtor(new __IntPtr(&__ret));
-                return ____ret;
+                var ___ret = new global::CppSharp.Parser.ParserDiagnostic.__Internal();
+                __Internal.GetDiagnostics(new IntPtr(&___ret), __Instance, i);
+                var _____ret = global::CppSharp.Parser.ParserDiagnostic.__CreateInstance(___ret);
+                global::CppSharp.Parser.ParserDiagnostic.__Internal.dtor(new __IntPtr(&___ret));
+                return _____ret;
             }
 
             public void AddDiagnostics(global::CppSharp.Parser.ParserDiagnostic s)
@@ -41132,8 +41622,8 @@ public void ClearDiagnostics()
 
             public global::CppSharp.Parser.AST.NativeLibrary GetLibraries(uint i)
             {
-                var __ret = __Internal.GetLibraries(__Instance, i);
-                var __result0 = global::CppSharp.Parser.AST.NativeLibrary.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.GetLibraries(__Instance, i);
+                var __result0 = global::CppSharp.Parser.AST.NativeLibrary.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41182,8 +41672,8 @@ public uint DiagnosticsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetDiagnosticsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetDiagnosticsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -41191,8 +41681,8 @@ public uint LibrariesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibrariesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibrariesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -41241,6 +41731,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ClangParser __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ClangParser(native.ToPointer(), skipVTables);
             }
 
@@ -41318,16 +41810,16 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
             public static global::CppSharp.Parser.ParserResult ParseHeader(global::CppSharp.Parser.CppParserOptions Opts)
             {
                 var __arg0 = Opts is null ? __IntPtr.Zero : Opts.__Instance;
-                var __ret = __Internal.ParseHeader(__arg0);
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.ParseHeader(__arg0);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
             public static global::CppSharp.Parser.ParserResult ParseLibrary(global::CppSharp.Parser.CppLinkerOptions Opts)
             {
                 var __arg0 = Opts is null ? __IntPtr.Zero : Opts.__Instance;
-                var __ret = __Internal.ParseLibrary(__arg0);
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.ParseLibrary(__arg0);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41338,9 +41830,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString2 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString2, File);
                 var __arg2 = __basicString2.__Instance;
-                var __ret = __Internal.Build(__arg0, __arg1, __arg2, Last);
+                var ___ret = __Internal.Build(__arg0, __arg1, __arg2, Last);
                 __basicString2.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41350,9 +41842,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString1 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString1, File);
                 var __arg1 = __basicString1.__Instance;
-                var __ret = __Internal.Compile(__arg0, __arg1);
+                var ___ret = __Internal.Compile(__arg0, __arg1);
                 __basicString1.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41363,9 +41855,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString2 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString2, File);
                 var __arg2 = __basicString2.__Instance;
-                var __ret = __Internal.Link(__arg0, __arg1, __arg2, Last);
+                var ___ret = __Internal.Link(__arg0, __arg1, __arg2, Last);
                 __basicString2.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
         }
diff --git a/src/CppParser/Bindings/CSharp/x86_64-linux-gnu/Std.cs b/src/CppParser/Bindings/CSharp/x86_64-linux-gnu/Std.cs
index 66048f8dc..91785e9fd 100644
--- a/src/CppParser/Bindings/CSharp/x86_64-linux-gnu/Std.cs
+++ b/src/CppParser/Bindings/CSharp/x86_64-linux-gnu/Std.cs
@@ -15,6 +15,8 @@
 
 [assembly:InternalsVisibleTo("CppSharp.CppParser")]
 
+#pragma warning disable CS0109 // Member does not hide an inherited member; new keyword is not required
+
 namespace Std
 {
     namespace Allocator
@@ -52,6 +54,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static Allocator<_Tp> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new Allocator<_Tp>(native.ToPointer(), skipVTables);
         }
 
@@ -256,6 +260,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static CharTraits<_CharT> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new CharTraits<_CharT>(native.ToPointer(), skipVTables);
         }
 
@@ -366,6 +372,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static BasicString<_CharT, _Traits, _Alloc> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new BasicString<_CharT, _Traits, _Alloc>(native.ToPointer(), skipVTables);
         }
 
@@ -468,16 +476,16 @@ public partial struct __Internal
         public static global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> Assign(this global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> @this, string __s)
         {
             var __arg0 = @this is null ? __IntPtr.Zero : @this.__Instance;
-            var __ret = __Internal.Assign(__arg0, __s);
-            var __result0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__GetOrCreateInstance(__ret, false);
+            var ___ret = __Internal.Assign(__arg0, __s);
+            var __result0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__GetOrCreateInstance(___ret, false);
             return __result0;
         }
 
         public static string Data(this global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> @this)
         {
             var __arg0 = @this is null ? __IntPtr.Zero : @this.__Instance;
-            var __ret = __Internal.Data(__arg0);
-            return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+            var ___ret = __Internal.Data(__arg0);
+            return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
         }
     }
 }
diff --git a/src/CppParser/Bindings/CSharp/x86_64-pc-win32-msvc/CppSharp.CppParser-symbols.cpp b/src/CppParser/Bindings/CSharp/x86_64-pc-win32-msvc/CppSharp.CppParser-symbols.cpp
index 04a272aee..7f36c1299 100644
--- a/src/CppParser/Bindings/CSharp/x86_64-pc-win32-msvc/CppSharp.CppParser-symbols.cpp
+++ b/src/CppParser/Bindings/CSharp/x86_64-pc-win32-msvc/CppSharp.CppParser-symbols.cpp
@@ -35,7 +35,6 @@ class CppSharp::CppParser::AST::InlineCommandComment& (CppSharp::CppParser::AST:
 extern "C" __declspec(dllexport) void c__N_CppSharp_N_CppParser_N_AST_S_InlineCommandComment__InlineCommandComment(CppSharp::CppParser::AST::InlineCommandComment*__instance) { __instance->~InlineCommandComment(); }
 class CppSharp::CppParser::AST::HTMLTagComment& (CppSharp::CppParser::AST::HTMLTagComment::*_15)(class CppSharp::CppParser::AST::HTMLTagComment&&) = &CppSharp::CppParser::AST::HTMLTagComment::operator=;
 class CppSharp::CppParser::AST::HTMLStartTagComment::Attribute& (CppSharp::CppParser::AST::HTMLStartTagComment::Attribute::*_16)(const class CppSharp::CppParser::AST::HTMLStartTagComment::Attribute&) = &CppSharp::CppParser::AST::HTMLStartTagComment::Attribute::operator=;
-extern "C" __declspec(dllexport) void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment_S_Attribute__Attribute(CppSharp::CppParser::AST::HTMLStartTagComment::Attribute*__instance) { __instance->~Attribute(); }
 extern "C" __declspec(dllexport) void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment_HTMLStartTagComment___1__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment(void* __instance, const CppSharp::CppParser::AST::HTMLStartTagComment& _0) { ::new (__instance) CppSharp::CppParser::AST::HTMLStartTagComment(_0); }
 class CppSharp::CppParser::AST::HTMLStartTagComment& (CppSharp::CppParser::AST::HTMLStartTagComment::*_17)(class CppSharp::CppParser::AST::HTMLStartTagComment&&) = &CppSharp::CppParser::AST::HTMLStartTagComment::operator=;
 extern "C" __declspec(dllexport) void c__N_CppSharp_N_CppParser_N_AST_S_HTMLStartTagComment__HTMLStartTagComment(CppSharp::CppParser::AST::HTMLStartTagComment*__instance) { __instance->~HTMLStartTagComment(); }
diff --git a/src/CppParser/Bindings/CSharp/x86_64-pc-win32-msvc/CppSharp.CppParser.cs b/src/CppParser/Bindings/CSharp/x86_64-pc-win32-msvc/CppSharp.CppParser.cs
index 5c6dadc5f..f884b3abb 100644
--- a/src/CppParser/Bindings/CSharp/x86_64-pc-win32-msvc/CppSharp.CppParser.cs
+++ b/src/CppParser/Bindings/CSharp/x86_64-pc-win32-msvc/CppSharp.CppParser.cs
@@ -13,6 +13,8 @@
 
 [assembly:InternalsVisibleTo("CppSharp.Parser")]
 
+#pragma warning disable CS0109 // Member does not hide an inherited member; new keyword is not required
+
 namespace CppSharp
 {
     namespace Parser
@@ -121,6 +123,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static NativeLibrary __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NativeLibrary(native.ToPointer(), skipVTables);
                 }
 
@@ -203,8 +207,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public string GetSymbols(uint i)
                 {
-                    var __ret = __Internal.GetSymbols(__Instance, i);
-                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                    var ___ret = __Internal.GetSymbols(__Instance, i);
+                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
                 }
 
                 public void AddSymbols(string s)
@@ -219,8 +223,8 @@ public void ClearSymbols()
 
                 public string GetDependencies(uint i)
                 {
-                    var __ret = __Internal.GetDependencies(__Instance, i);
-                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                    var ___ret = __Internal.GetDependencies(__Instance, i);
+                    return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
                 }
 
                 public void AddDependencies(string s)
@@ -264,8 +268,8 @@ public uint SymbolsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSymbolsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSymbolsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -273,8 +277,8 @@ public uint DependenciesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetDependenciesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetDependenciesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -313,6 +317,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Comment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Comment(native.ToPointer(), skipVTables);
                 }
 
@@ -426,6 +432,8 @@ public unsafe partial class BlockContentComment : global::CppSharp.Parser.AST.Co
 
                 internal static new BlockContentComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockContentComment(native.ToPointer(), skipVTables);
                 }
 
@@ -530,6 +538,8 @@ public unsafe partial class FullComment : global::CppSharp.Parser.AST.Comment, I
 
                 internal static new FullComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FullComment(native.ToPointer(), skipVTables);
                 }
 
@@ -607,8 +617,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BlockContentComment GetBlocks(uint i)
                 {
-                    var __ret = __Internal.GetBlocks(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.BlockContentComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetBlocks(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.BlockContentComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -630,8 +640,8 @@ public uint BlocksCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBlocksCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBlocksCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -656,6 +666,8 @@ public unsafe partial class InlineContentComment : global::CppSharp.Parser.AST.C
 
                 internal static new InlineContentComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InlineContentComment(native.ToPointer(), skipVTables);
                 }
 
@@ -774,6 +786,8 @@ public unsafe partial class ParagraphComment : global::CppSharp.Parser.AST.Block
 
                 internal static new ParagraphComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParagraphComment(native.ToPointer(), skipVTables);
                 }
 
@@ -851,8 +865,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.InlineContentComment GetContent(uint i)
                 {
-                    var __ret = __Internal.GetContent(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.InlineContentComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetContent(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.InlineContentComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -887,8 +901,8 @@ public uint ContentCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetContentCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetContentCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -965,6 +979,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Argument __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Argument(native.ToPointer(), skipVTables);
                     }
 
@@ -1062,6 +1078,8 @@ public string Text
 
                 internal static new BlockCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1148,11 +1166,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BlockCommandComment.Argument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    var ____ret = global::CppSharp.Parser.AST.BlockCommandComment.Argument.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    var _____ret = global::CppSharp.Parser.AST.BlockCommandComment.Argument.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.BlockCommandComment.Argument.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.BlockCommandComment.Argument s)
@@ -1204,8 +1222,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1241,6 +1259,8 @@ public enum PassDirection
 
                 internal static new ParamCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParamCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1378,6 +1398,8 @@ public unsafe partial class TParamCommandComment : global::CppSharp.Parser.AST.B
 
                 internal static new TParamCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TParamCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1455,8 +1477,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public uint GetPosition(uint i)
                 {
-                    var __ret = __Internal.GetPosition(__Instance, i);
-                    return __ret;
+                    var ___ret = __Internal.GetPosition(__Instance, i);
+                    return ___ret;
                 }
 
                 public void AddPosition(ref uint s)
@@ -1477,8 +1499,8 @@ public uint PositionCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetPositionCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetPositionCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1503,6 +1525,8 @@ public unsafe partial class VerbatimBlockLineComment : global::CppSharp.Parser.A
 
                 internal static new VerbatimBlockLineComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimBlockLineComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1628,6 +1652,8 @@ public unsafe partial class VerbatimBlockComment : global::CppSharp.Parser.AST.B
 
                 internal static new VerbatimBlockComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimBlockComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1705,8 +1731,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VerbatimBlockLineComment GetLines(uint i)
                 {
-                    var __ret = __Internal.GetLines(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.VerbatimBlockLineComment.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetLines(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.VerbatimBlockLineComment.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -1728,8 +1754,8 @@ public uint LinesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetLinesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetLinesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -1757,6 +1783,8 @@ public unsafe partial class VerbatimLineComment : global::CppSharp.Parser.AST.Bl
 
                 internal static new VerbatimLineComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VerbatimLineComment(native.ToPointer(), skipVTables);
                 }
 
@@ -1926,6 +1954,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Argument __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Argument(native.ToPointer(), skipVTables);
                     }
 
@@ -2023,6 +2053,8 @@ public string Text
 
                 internal static new InlineCommandComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InlineCommandComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2100,11 +2132,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.InlineCommandComment.Argument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    var ____ret = global::CppSharp.Parser.AST.InlineCommandComment.Argument.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    var _____ret = global::CppSharp.Parser.AST.InlineCommandComment.Argument.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.InlineCommandComment.Argument.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.InlineCommandComment.Argument s)
@@ -2150,8 +2182,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -2176,6 +2208,8 @@ public unsafe partial class HTMLTagComment : global::CppSharp.Parser.AST.InlineC
 
                 internal static new HTMLTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2318,6 +2352,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Attribute __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Attribute(native.ToPointer(), skipVTables);
                     }
 
@@ -2429,6 +2465,8 @@ public string Value
 
                 internal static new HTMLStartTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLStartTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2506,11 +2544,11 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute GetAttributes(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal();
-                    __Internal.GetAttributes(__Instance, new IntPtr(&__ret), i);
-                    var ____ret = global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal();
+                    __Internal.GetAttributes(__Instance, new IntPtr(&___ret), i);
+                    var _____ret = global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddAttributes(global::CppSharp.Parser.AST.HTMLStartTagComment.Attribute s)
@@ -2544,8 +2582,8 @@ public uint AttributesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetAttributesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetAttributesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -2571,6 +2609,8 @@ public unsafe partial class HTMLEndTagComment : global::CppSharp.Parser.AST.HTML
 
                 internal static new HTMLEndTagComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new HTMLEndTagComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2682,6 +2722,8 @@ public unsafe partial class TextComment : global::CppSharp.Parser.AST.InlineCont
 
                 internal static new TextComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TextComment(native.ToPointer(), skipVTables);
                 }
 
@@ -2812,6 +2854,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static RawComment __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new RawComment(native.ToPointer(), skipVTables);
                 }
 
@@ -3070,6 +3114,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static SourceRange __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new SourceRange(native.ToPointer(), skipVTables);
             }
 
@@ -3292,6 +3338,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Type __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Type(native.ToPointer(), skipVTables);
                 }
 
@@ -3435,6 +3483,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static TypeQualifiers __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeQualifiers(native.ToPointer(), skipVTables);
                 }
 
@@ -3584,6 +3634,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static QualifiedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new QualifiedType(native.ToPointer(), skipVTables);
                 }
 
@@ -3707,6 +3759,8 @@ public unsafe partial class TagType : global::CppSharp.Parser.AST.Type, IDisposa
 
                 internal static new TagType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TagType(native.ToPointer(), skipVTables);
                 }
 
@@ -3811,6 +3865,8 @@ public enum ArraySize
 
                 internal static new ArrayType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayType(native.ToPointer(), skipVTables);
                 }
 
@@ -3962,6 +4018,8 @@ public unsafe partial class FunctionType : global::CppSharp.Parser.AST.Type, IDi
 
                 internal static new FunctionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionType(native.ToPointer(), skipVTables);
                 }
 
@@ -4039,8 +4097,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Parameter GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -4103,8 +4161,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -4136,6 +4194,8 @@ public enum TypeModifier
 
                 internal static new PointerType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PointerType(native.ToPointer(), skipVTables);
                 }
 
@@ -4243,6 +4303,8 @@ public unsafe partial class MemberPointerType : global::CppSharp.Parser.AST.Type
 
                 internal static new MemberPointerType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MemberPointerType(native.ToPointer(), skipVTables);
                 }
 
@@ -4337,6 +4399,8 @@ public unsafe partial class TypedefType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new TypedefType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefType(native.ToPointer(), skipVTables);
                 }
 
@@ -4431,6 +4495,8 @@ public unsafe partial class AttributedType : global::CppSharp.Parser.AST.Type, I
 
                 internal static new AttributedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AttributedType(native.ToPointer(), skipVTables);
                 }
 
@@ -4542,6 +4608,8 @@ public unsafe partial class DecayedType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new DecayedType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DecayedType(native.ToPointer(), skipVTables);
                 }
 
@@ -4697,6 +4765,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static TemplateArgument __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateArgument(native.ToPointer(), skipVTables);
                 }
 
@@ -4863,6 +4933,8 @@ public unsafe partial class TemplateSpecializationType : global::CppSharp.Parser
 
                 internal static new TemplateSpecializationType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateSpecializationType(native.ToPointer(), skipVTables);
                 }
 
@@ -4940,9 +5012,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -4991,8 +5063,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -5031,6 +5103,8 @@ public unsafe partial class DependentTemplateSpecializationType : global::CppSha
 
                 internal static new DependentTemplateSpecializationType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentTemplateSpecializationType(native.ToPointer(), skipVTables);
                 }
 
@@ -5108,9 +5182,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -5145,8 +5219,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -5175,6 +5249,8 @@ public unsafe partial class TemplateParameterType : global::CppSharp.Parser.AST.
 
                 internal static new TemplateParameterType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameterType(native.ToPointer(), skipVTables);
                 }
 
@@ -5323,6 +5399,8 @@ public unsafe partial class TemplateParameterSubstitutionType : global::CppSharp
 
                 internal static new TemplateParameterSubstitutionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameterSubstitutionType(native.ToPointer(), skipVTables);
                 }
 
@@ -5432,6 +5510,8 @@ public unsafe partial class InjectedClassNameType : global::CppSharp.Parser.AST.
 
                 internal static new InjectedClassNameType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InjectedClassNameType(native.ToPointer(), skipVTables);
                 }
 
@@ -5544,6 +5624,8 @@ public unsafe partial class DependentNameType : global::CppSharp.Parser.AST.Type
 
                 internal static new DependentNameType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentNameType(native.ToPointer(), skipVTables);
                 }
 
@@ -5666,6 +5748,8 @@ public unsafe partial class PackExpansionType : global::CppSharp.Parser.AST.Type
 
                 internal static new PackExpansionType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PackExpansionType(native.ToPointer(), skipVTables);
                 }
 
@@ -5746,6 +5830,8 @@ public unsafe partial class UnaryTransformType : global::CppSharp.Parser.AST.Typ
 
                 internal static new UnaryTransformType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryTransformType(native.ToPointer(), skipVTables);
                 }
 
@@ -5855,6 +5941,8 @@ public unsafe partial class UnresolvedUsingType : global::CppSharp.Parser.AST.Ty
 
                 internal static new UnresolvedUsingType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedUsingType(native.ToPointer(), skipVTables);
                 }
 
@@ -5949,6 +6037,8 @@ public unsafe partial class VectorType : global::CppSharp.Parser.AST.Type, IDisp
 
                 internal static new VectorType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VectorType(native.ToPointer(), skipVTables);
                 }
 
@@ -6056,6 +6146,8 @@ public unsafe partial class BuiltinType : global::CppSharp.Parser.AST.Type, IDis
 
                 internal static new BuiltinType __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BuiltinType(native.ToPointer(), skipVTables);
                 }
 
@@ -6418,6 +6510,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Declaration __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Declaration(native.ToPointer(), skipVTables);
                 }
 
@@ -6500,8 +6594,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.PreprocessedEntity GetPreprocessedEntities(uint i)
                 {
-                    var __ret = __Internal.GetPreprocessedEntities(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.PreprocessedEntity.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetPreprocessedEntities(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.PreprocessedEntity.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -6521,8 +6615,8 @@ public void ClearPreprocessedEntities()
 
                 public global::CppSharp.Parser.AST.Declaration GetRedeclarations(uint i)
                 {
-                    var __ret = __Internal.GetRedeclarations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetRedeclarations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -6815,8 +6909,8 @@ public uint PreprocessedEntitiesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetPreprocessedEntitiesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetPreprocessedEntitiesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -6824,8 +6918,8 @@ public uint RedeclarationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetRedeclarationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetRedeclarationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -6989,6 +7083,8 @@ public unsafe partial class DeclarationContext : global::CppSharp.Parser.AST.Dec
 
                 internal static new DeclarationContext __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclarationContext(native.ToPointer(), skipVTables);
                 }
 
@@ -7066,8 +7162,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Namespace GetNamespaces(uint i)
                 {
-                    var __ret = __Internal.GetNamespaces(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Namespace.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetNamespaces(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Namespace.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7087,8 +7183,8 @@ public void ClearNamespaces()
 
                 public global::CppSharp.Parser.AST.Enumeration GetEnums(uint i)
                 {
-                    var __ret = __Internal.GetEnums(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetEnums(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7108,8 +7204,8 @@ public void ClearEnums()
 
                 public global::CppSharp.Parser.AST.Function GetFunctions(uint i)
                 {
-                    var __ret = __Internal.GetFunctions(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Function.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFunctions(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Function.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7129,8 +7225,8 @@ public void ClearFunctions()
 
                 public global::CppSharp.Parser.AST.Class GetClasses(uint i)
                 {
-                    var __ret = __Internal.GetClasses(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Class.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetClasses(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Class.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7150,8 +7246,8 @@ public void ClearClasses()
 
                 public global::CppSharp.Parser.AST.Template GetTemplates(uint i)
                 {
-                    var __ret = __Internal.GetTemplates(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Template.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTemplates(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Template.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7171,8 +7267,8 @@ public void ClearTemplates()
 
                 public global::CppSharp.Parser.AST.TypedefDecl GetTypedefs(uint i)
                 {
-                    var __ret = __Internal.GetTypedefs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TypedefDecl.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTypedefs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TypedefDecl.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7192,8 +7288,8 @@ public void ClearTypedefs()
 
                 public global::CppSharp.Parser.AST.TypeAlias GetTypeAliases(uint i)
                 {
-                    var __ret = __Internal.GetTypeAliases(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TypeAlias.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTypeAliases(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TypeAlias.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7213,8 +7309,8 @@ public void ClearTypeAliases()
 
                 public global::CppSharp.Parser.AST.Variable GetVariables(uint i)
                 {
-                    var __ret = __Internal.GetVariables(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Variable.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetVariables(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Variable.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7234,8 +7330,8 @@ public void ClearVariables()
 
                 public global::CppSharp.Parser.AST.Friend GetFriends(uint i)
                 {
-                    var __ret = __Internal.GetFriends(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Friend.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFriends(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Friend.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -7275,8 +7371,8 @@ public uint NamespacesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetNamespacesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetNamespacesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7284,8 +7380,8 @@ public uint EnumsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetEnumsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetEnumsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7293,8 +7389,8 @@ public uint FunctionsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFunctionsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFunctionsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7302,8 +7398,8 @@ public uint ClassesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetClassesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetClassesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7311,8 +7407,8 @@ public uint TemplatesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTemplatesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTemplatesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7320,8 +7416,8 @@ public uint TypedefsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTypedefsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTypedefsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7329,8 +7425,8 @@ public uint TypeAliasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTypeAliasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTypeAliasesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7338,8 +7434,8 @@ public uint VariablesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetVariablesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetVariablesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -7347,8 +7443,8 @@ public uint FriendsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFriendsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFriendsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -7394,6 +7490,8 @@ public unsafe partial class TypedefNameDecl : global::CppSharp.Parser.AST.Declar
 
                 internal static new TypedefNameDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefNameDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -7531,6 +7629,8 @@ public unsafe partial class TypedefDecl : global::CppSharp.Parser.AST.TypedefNam
 
                 internal static new TypedefDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypedefDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -7649,6 +7749,8 @@ public unsafe partial class TypeAlias : global::CppSharp.Parser.AST.TypedefNameD
 
                 internal static new TypeAlias __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeAlias(native.ToPointer(), skipVTables);
                 }
 
@@ -7780,6 +7882,8 @@ public unsafe partial class Friend : global::CppSharp.Parser.AST.Declaration, ID
 
                 internal static new Friend __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Friend(native.ToPointer(), skipVTables);
                 }
 
@@ -7909,6 +8013,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static StatementObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StatementObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8057,6 +8163,8 @@ public unsafe partial class ExpressionObsolete : global::CppSharp.Parser.AST.Sta
 
                 internal static new ExpressionObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExpressionObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8162,6 +8270,8 @@ public unsafe partial class BinaryOperatorObsolete : global::CppSharp.Parser.AST
 
                 internal static new BinaryOperatorObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryOperatorObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8324,6 +8434,8 @@ public unsafe partial class CallExprObsolete : global::CppSharp.Parser.AST.Expre
 
                 internal static new CallExprObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CallExprObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8406,8 +8518,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ExpressionObsolete GetArguments(uint i)
                 {
-                    var __ret = __Internal.GetArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -8429,8 +8541,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -8469,6 +8581,8 @@ public unsafe partial class CXXConstructExprObsolete : global::CppSharp.Parser.A
 
                 internal static new CXXConstructExprObsolete __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstructExprObsolete(native.ToPointer(), skipVTables);
                 }
 
@@ -8551,8 +8665,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ExpressionObsolete GetArguments(uint i)
                 {
-                    var __ret = __Internal.GetArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ExpressionObsolete.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -8574,8 +8688,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -8626,6 +8740,8 @@ public unsafe partial class Parameter : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Parameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Parameter(native.ToPointer(), skipVTables);
                 }
 
@@ -8867,6 +8983,8 @@ public unsafe partial class Function : global::CppSharp.Parser.AST.DeclarationCo
 
                 internal static new Function __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Function(native.ToPointer(), skipVTables);
                 }
 
@@ -8944,8 +9062,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Parameter GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Parameter.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9224,8 +9342,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9324,6 +9442,8 @@ public unsafe partial class Method : global::CppSharp.Parser.AST.Function, IDisp
 
                 internal static new Method __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Method(native.ToPointer(), skipVTables);
                 }
 
@@ -9401,8 +9521,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Method GetOverriddenMethods(uint i)
                 {
-                    var __ret = __Internal.GetOverriddenMethods(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetOverriddenMethods(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9556,8 +9676,8 @@ public uint OverriddenMethodsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetOverriddenMethodsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetOverriddenMethodsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9681,6 +9801,8 @@ public unsafe partial class Item : global::CppSharp.Parser.AST.Declaration, IDis
 
                     internal static new Item __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Item(native.ToPointer(), skipVTables);
                     }
 
@@ -9786,6 +9908,8 @@ public ulong Value
 
                 internal static new Enumeration __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Enumeration(native.ToPointer(), skipVTables);
                 }
 
@@ -9863,8 +9987,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Enumeration.Item GetItems(uint i)
                 {
-                    var __ret = __Internal.GetItems(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetItems(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9887,9 +10011,9 @@ public void ClearItems()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, Name);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindItemByName(__Instance, __arg0);
+                    var ___ret = __Internal.FindItemByName(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.Enumeration.Item.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -9938,8 +10062,8 @@ public uint ItemsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetItemsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetItemsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -9988,6 +10112,8 @@ public unsafe partial class Variable : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Variable __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Variable(native.ToPointer(), skipVTables);
                 }
 
@@ -10157,6 +10283,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static BaseClassSpecifier __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BaseClassSpecifier(native.ToPointer(), skipVTables);
                 }
 
@@ -10330,6 +10458,8 @@ public unsafe partial class Field : global::CppSharp.Parser.AST.Declaration, IDi
 
                 internal static new Field __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Field(native.ToPointer(), skipVTables);
                 }
 
@@ -10501,6 +10631,8 @@ public unsafe partial class AccessSpecifierDecl : global::CppSharp.Parser.AST.De
 
                 internal static new AccessSpecifierDecl __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AccessSpecifierDecl(native.ToPointer(), skipVTables);
                 }
 
@@ -10613,6 +10745,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VTableComponent __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VTableComponent(native.ToPointer(), skipVTables);
                 }
 
@@ -10778,6 +10912,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VTableLayout __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VTableLayout(native.ToPointer(), skipVTables);
                 }
 
@@ -10860,9 +10996,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VTableComponent GetComponents(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.VTableComponent.__Internal();
-                    __Internal.GetComponents(__Instance, new IntPtr(&__ret), i);
-                    return global::CppSharp.Parser.AST.VTableComponent.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.VTableComponent.__Internal();
+                    __Internal.GetComponents(__Instance, new IntPtr(&___ret), i);
+                    return global::CppSharp.Parser.AST.VTableComponent.__CreateInstance(___ret);
                 }
 
                 public void AddComponents(global::CppSharp.Parser.AST.VTableComponent s)
@@ -10882,8 +11018,8 @@ public uint ComponentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetComponentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetComponentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -10928,6 +11064,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static VFTableInfo __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VFTableInfo(native.ToPointer(), skipVTables);
                 }
 
@@ -11103,6 +11241,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static LayoutField __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LayoutField(native.ToPointer(), skipVTables);
                 }
 
@@ -11277,6 +11417,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static LayoutBase __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LayoutBase(native.ToPointer(), skipVTables);
                 }
 
@@ -11468,6 +11610,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static ClassLayout __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassLayout(native.ToPointer(), skipVTables);
                 }
 
@@ -11550,11 +11694,11 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VFTableInfo GetVFTables(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.VFTableInfo.__Internal();
-                    __Internal.GetVFTables(__Instance, new IntPtr(&__ret), i);
-                    var ____ret = global::CppSharp.Parser.AST.VFTableInfo.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.VFTableInfo.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.VFTableInfo.__Internal();
+                    __Internal.GetVFTables(__Instance, new IntPtr(&___ret), i);
+                    var _____ret = global::CppSharp.Parser.AST.VFTableInfo.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.VFTableInfo.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddVFTables(global::CppSharp.Parser.AST.VFTableInfo s)
@@ -11572,11 +11716,11 @@ public void ClearVFTables()
 
                 public global::CppSharp.Parser.AST.LayoutField GetFields(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.LayoutField.__Internal();
-                    __Internal.GetFields(__Instance, new IntPtr(&__ret), i);
-                    var ____ret = global::CppSharp.Parser.AST.LayoutField.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.LayoutField.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.LayoutField.__Internal();
+                    __Internal.GetFields(__Instance, new IntPtr(&___ret), i);
+                    var _____ret = global::CppSharp.Parser.AST.LayoutField.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.LayoutField.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddFields(global::CppSharp.Parser.AST.LayoutField s)
@@ -11594,11 +11738,11 @@ public void ClearFields()
 
                 public global::CppSharp.Parser.AST.LayoutBase GetBases(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.LayoutBase.__Internal();
-                    __Internal.GetBases(__Instance, new IntPtr(&__ret), i);
-                    var ____ret = global::CppSharp.Parser.AST.LayoutBase.__CreateInstance(__ret);
-                    global::CppSharp.Parser.AST.LayoutBase.__Internal.dtor(new __IntPtr(&__ret));
-                    return ____ret;
+                    var ___ret = new global::CppSharp.Parser.AST.LayoutBase.__Internal();
+                    __Internal.GetBases(__Instance, new IntPtr(&___ret), i);
+                    var _____ret = global::CppSharp.Parser.AST.LayoutBase.__CreateInstance(___ret);
+                    global::CppSharp.Parser.AST.LayoutBase.__Internal.dtor(new __IntPtr(&___ret));
+                    return _____ret;
                 }
 
                 public void AddBases(global::CppSharp.Parser.AST.LayoutBase s)
@@ -11724,8 +11868,8 @@ public uint VFTablesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetVFTablesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetVFTablesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -11733,8 +11877,8 @@ public uint FieldsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFieldsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFieldsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -11742,8 +11886,8 @@ public uint BasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBasesCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -11863,6 +12007,8 @@ public unsafe partial class Class : global::CppSharp.Parser.AST.DeclarationConte
 
                 internal static new Class __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Class(native.ToPointer(), skipVTables);
                 }
 
@@ -11940,8 +12086,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.BaseClassSpecifier GetBases(uint i)
                 {
-                    var __ret = __Internal.GetBases(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.BaseClassSpecifier.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetBases(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.BaseClassSpecifier.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -11961,8 +12107,8 @@ public void ClearBases()
 
                 public global::CppSharp.Parser.AST.Field GetFields(uint i)
                 {
-                    var __ret = __Internal.GetFields(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Field.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetFields(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Field.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -11982,8 +12128,8 @@ public void ClearFields()
 
                 public global::CppSharp.Parser.AST.Method GetMethods(uint i)
                 {
-                    var __ret = __Internal.GetMethods(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetMethods(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Method.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12003,8 +12149,8 @@ public void ClearMethods()
 
                 public global::CppSharp.Parser.AST.AccessSpecifierDecl GetSpecifiers(uint i)
                 {
-                    var __ret = __Internal.GetSpecifiers(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.AccessSpecifierDecl.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecifiers(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.AccessSpecifierDecl.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12183,8 +12329,8 @@ public uint BasesCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetBasesCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetBasesCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12192,8 +12338,8 @@ public uint FieldsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetFieldsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetFieldsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12201,8 +12347,8 @@ public uint MethodsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetMethodsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetMethodsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -12210,8 +12356,8 @@ public uint SpecifiersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecifiersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecifiersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -12273,6 +12419,8 @@ public unsafe partial class Template : global::CppSharp.Parser.AST.Declaration,
 
                 internal static new Template __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Template(native.ToPointer(), skipVTables);
                 }
 
@@ -12359,8 +12507,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Declaration GetParameters(uint i)
                 {
-                    var __ret = __Internal.GetParameters(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetParameters(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -12401,8 +12549,8 @@ public uint ParametersCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetParametersCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetParametersCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -12449,6 +12597,8 @@ public unsafe partial class TypeAliasTemplate : global::CppSharp.Parser.AST.Temp
 
                 internal static new TypeAliasTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeAliasTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -12568,6 +12718,8 @@ public unsafe partial class TemplateParameter : global::CppSharp.Parser.AST.Decl
 
                 internal static new TemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12733,6 +12885,8 @@ public unsafe partial class TemplateTemplateParameter : global::CppSharp.Parser.
 
                 internal static new TemplateTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TemplateTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12892,6 +13046,8 @@ public unsafe partial class TypeTemplateParameter : global::CppSharp.Parser.AST.
 
                 internal static new TypeTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -12985,7 +13141,7 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
             public unsafe partial class NonTypeTemplateParameter : global::CppSharp.Parser.AST.TemplateParameter, IDisposable
             {
-                [StructLayout(LayoutKind.Sequential, Size = 264)]
+                [StructLayout(LayoutKind.Sequential, Size = 280)]
                 public new partial struct __Internal
                 {
                     internal global::CppSharp.Parser.AST.DeclarationKind kind;
@@ -13032,6 +13188,8 @@ public unsafe partial class NonTypeTemplateParameter : global::CppSharp.Parser.A
 
                 internal static new NonTypeTemplateParameter __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NonTypeTemplateParameter(native.ToPointer(), skipVTables);
                 }
 
@@ -13251,6 +13409,8 @@ public unsafe partial class ClassTemplate : global::CppSharp.Parser.AST.Template
 
                 internal static new ClassTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -13328,8 +13488,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.ClassTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13352,9 +13512,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13363,9 +13523,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.ClassTemplatePartialSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.ClassTemplatePartialSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13373,8 +13533,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13461,6 +13621,8 @@ public unsafe partial class ClassTemplateSpecialization : global::CppSharp.Parse
 
                 internal static new ClassTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -13538,9 +13700,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -13587,8 +13749,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13663,6 +13825,8 @@ public unsafe partial class ClassTemplatePartialSpecialization : global::CppShar
 
                 internal static new ClassTemplatePartialSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ClassTemplatePartialSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -13797,6 +13961,8 @@ public unsafe partial class FunctionTemplate : global::CppSharp.Parser.AST.Templ
 
                 internal static new FunctionTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -13874,8 +14040,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.FunctionTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13898,9 +14064,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.FunctionTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -13908,8 +14074,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -13966,6 +14132,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static FunctionTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14048,9 +14216,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -14111,8 +14279,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14178,6 +14346,8 @@ public unsafe partial class VarTemplate : global::CppSharp.Parser.AST.Template,
 
                 internal static new VarTemplate __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplate(native.ToPointer(), skipVTables);
                 }
 
@@ -14255,8 +14425,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.VarTemplateSpecialization GetSpecializations(uint i)
                 {
-                    var __ret = __Internal.GetSpecializations(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetSpecializations(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14279,9 +14449,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplateSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14290,9 +14460,9 @@ public void ClearSpecializations()
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, usr);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
+                    var ___ret = __Internal.FindPartialSpecialization(__Instance, __arg0);
                     __basicString0.Dispose();
-                    var __result0 = global::CppSharp.Parser.AST.VarTemplatePartialSpecialization.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.VarTemplatePartialSpecialization.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -14300,8 +14470,8 @@ public uint SpecializationsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetSpecializationsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetSpecializationsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14365,6 +14535,8 @@ public unsafe partial class VarTemplateSpecialization : global::CppSharp.Parser.
 
                 internal static new VarTemplateSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplateSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14442,9 +14614,9 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.TemplateArgument GetArguments(uint i)
                 {
-                    var __ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
-                    __Internal.GetArguments(__Instance, new IntPtr(&__ret), i);
-                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(__ret);
+                    var ___ret = new global::CppSharp.Parser.AST.TemplateArgument.__Internal();
+                    __Internal.GetArguments(__Instance, new IntPtr(&___ret), i);
+                    return global::CppSharp.Parser.AST.TemplateArgument.__CreateInstance(___ret);
                 }
 
                 public void AddArguments(global::CppSharp.Parser.AST.TemplateArgument s)
@@ -14491,8 +14663,8 @@ public uint ArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -14544,6 +14716,8 @@ public unsafe partial class VarTemplatePartialSpecialization : global::CppSharp.
 
                 internal static new VarTemplatePartialSpecialization __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VarTemplatePartialSpecialization(native.ToPointer(), skipVTables);
                 }
 
@@ -14660,6 +14834,8 @@ public unsafe partial class UnresolvedUsingTypename : global::CppSharp.Parser.AS
 
                 internal static new UnresolvedUsingTypename __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedUsingTypename(native.ToPointer(), skipVTables);
                 }
 
@@ -14789,6 +14965,8 @@ public unsafe partial class Namespace : global::CppSharp.Parser.AST.DeclarationC
 
                 internal static new Namespace __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Namespace(native.ToPointer(), skipVTables);
                 }
 
@@ -14914,6 +15092,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static PreprocessedEntity __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PreprocessedEntity(native.ToPointer(), skipVTables);
                 }
 
@@ -15054,6 +15234,8 @@ public unsafe partial class MacroDefinition : global::CppSharp.Parser.AST.Prepro
 
                 internal static new MacroDefinition __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MacroDefinition(native.ToPointer(), skipVTables);
                 }
 
@@ -15208,6 +15390,8 @@ public unsafe partial class MacroExpansion : global::CppSharp.Parser.AST.Preproc
 
                 internal static new MacroExpansion __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MacroExpansion(native.ToPointer(), skipVTables);
                 }
 
@@ -15394,6 +15578,8 @@ public unsafe partial class TranslationUnit : global::CppSharp.Parser.AST.Namesp
 
                 internal static new TranslationUnit __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TranslationUnit(native.ToPointer(), skipVTables);
                 }
 
@@ -15471,8 +15657,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.MacroDefinition GetMacros(uint i)
                 {
-                    var __ret = __Internal.GetMacros(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.MacroDefinition.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetMacros(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.MacroDefinition.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -15521,8 +15707,8 @@ public uint MacrosCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetMacrosCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetMacrosCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -15579,6 +15765,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static ASTContext __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ASTContext(native.ToPointer(), skipVTables);
                 }
 
@@ -15664,16 +15852,16 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                     var __basicString0 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                     global::Std.BasicStringExtensions.Assign(__basicString0, File);
                     var __arg0 = __basicString0.__Instance;
-                    var __ret = __Internal.FindOrCreateModule(__Instance, __arg0);
+                    var ___ret = __Internal.FindOrCreateModule(__Instance, __arg0);
                     __basicString0.Dispose(disposing: true, callNativeDtor:false);
-                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(__ret, false);
+                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
                 public global::CppSharp.Parser.AST.TranslationUnit GetTranslationUnits(uint i)
                 {
-                    var __ret = __Internal.GetTranslationUnits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetTranslationUnits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.TranslationUnit.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -15695,8 +15883,8 @@ public uint TranslationUnitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetTranslationUnitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetTranslationUnitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -15880,6 +16068,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                 internal static Stmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Stmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16060,6 +16250,8 @@ public unsafe partial class DeclStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new DeclStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16137,8 +16329,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Declaration Getdecls(uint i)
                 {
-                    var __ret = __Internal.Getdecls(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getdecls(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Declaration.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -16187,8 +16379,8 @@ public uint GetdeclsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetdeclsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetdeclsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -16214,6 +16406,8 @@ public unsafe partial class NullStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new NullStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NullStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16339,6 +16533,8 @@ public unsafe partial class CompoundStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new CompoundStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16416,8 +16612,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Stmt Getbody(uint i)
                 {
-                    var __ret = __Internal.Getbody(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Stmt.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getbody(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Stmt.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -16519,8 +16715,8 @@ public uint GetbodyCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetbodyCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetbodyCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -16550,6 +16746,8 @@ public unsafe partial class SwitchCase : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SwitchCase __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SwitchCase(native.ToPointer(), skipVTables);
                 }
 
@@ -16689,6 +16887,8 @@ public unsafe partial class CaseStmt : global::CppSharp.Parser.AST.SwitchCase, I
 
                 internal static new CaseStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CaseStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16837,6 +17037,8 @@ public unsafe partial class DefaultStmt : global::CppSharp.Parser.AST.SwitchCase
 
                 internal static new DefaultStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DefaultStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -16931,6 +17133,8 @@ public unsafe partial class LabelStmt : global::CppSharp.Parser.AST.Stmt, IDispo
                 private bool __name_OwnsNativeMemory = false;
                 internal static new LabelStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LabelStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17064,6 +17268,8 @@ public unsafe partial class AttributedStmt : global::CppSharp.Parser.AST.Stmt, I
 
                 internal static new AttributedStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AttributedStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17180,6 +17386,8 @@ public unsafe partial class IfStmt : global::CppSharp.Parser.AST.Stmt, IDisposab
 
                 internal static new IfStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IfStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17426,6 +17634,8 @@ public unsafe partial class SwitchStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SwitchStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SwitchStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17616,6 +17826,8 @@ public unsafe partial class WhileStmt : global::CppSharp.Parser.AST.Stmt, IDispo
 
                 internal static new WhileStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new WhileStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17766,6 +17978,8 @@ public unsafe partial class DoStmt : global::CppSharp.Parser.AST.Stmt, IDisposab
 
                 internal static new DoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -17918,6 +18132,8 @@ public unsafe partial class ForStmt : global::CppSharp.Parser.AST.Stmt, IDisposa
 
                 internal static new ForStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ForStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18106,6 +18322,8 @@ public unsafe partial class GotoStmt : global::CppSharp.Parser.AST.Stmt, IDispos
 
                 internal static new GotoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GotoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18212,6 +18430,8 @@ public unsafe partial class IndirectGotoStmt : global::CppSharp.Parser.AST.Stmt,
 
                 internal static new IndirectGotoStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IndirectGotoStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18330,6 +18550,8 @@ public unsafe partial class ContinueStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new ContinueStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ContinueStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18421,6 +18643,8 @@ public unsafe partial class BreakStmt : global::CppSharp.Parser.AST.Stmt, IDispo
 
                 internal static new BreakStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BreakStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18513,6 +18737,8 @@ public unsafe partial class ReturnStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new ReturnStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ReturnStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18656,6 +18882,8 @@ public unsafe partial class AsmStmt : global::CppSharp.Parser.AST.Stmt, IDisposa
 
                 internal static new AsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -18742,8 +18970,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getinputs(uint i)
                 {
-                    var __ret = __Internal.Getinputs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getinputs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -18763,8 +18991,8 @@ public void Clearinputs()
 
                 public global::CppSharp.Parser.AST.Expr Getoutputs(uint i)
                 {
-                    var __ret = __Internal.Getoutputs(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getoutputs(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -18882,8 +19110,8 @@ public uint GetinputsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetinputsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetinputsCount(__Instance);
+                        return ___ret;
                     }
                 }
 
@@ -18891,8 +19119,8 @@ public uint GetoutputsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetoutputsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetoutputsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -18974,6 +19202,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static AsmStringPiece __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new AsmStringPiece(native.ToPointer(), skipVTables);
                     }
 
@@ -19123,6 +19353,8 @@ public sbyte Modifier
 
                 internal static new GCCAsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GCCAsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19247,6 +19479,8 @@ public unsafe partial class MSAsmStmt : global::CppSharp.Parser.AST.AsmStmt, IDi
 
                 internal static new MSAsmStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSAsmStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19398,6 +19632,8 @@ public unsafe partial class SEHExceptStmt : global::CppSharp.Parser.AST.Stmt, ID
 
                 internal static new SEHExceptStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHExceptStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19518,6 +19754,8 @@ public unsafe partial class SEHFinallyStmt : global::CppSharp.Parser.AST.Stmt, I
 
                 internal static new SEHFinallyStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHFinallyStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19628,6 +19866,8 @@ public unsafe partial class SEHTryStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new SEHTryStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHTryStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19788,6 +20028,8 @@ public unsafe partial class SEHLeaveStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new SEHLeaveStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SEHLeaveStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -19941,6 +20183,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Capture __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Capture(native.ToPointer(), skipVTables);
                     }
 
@@ -20097,6 +20341,8 @@ public bool CapturesVariableArrayType
 
                 internal static new CapturedStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CapturedStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20174,8 +20420,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetcaptureInits(uint i)
                 {
-                    var __ret = __Internal.GetcaptureInits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetcaptureInits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -20224,8 +20470,8 @@ public uint GetcaptureInitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetcaptureInitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetcaptureInitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -20252,6 +20498,8 @@ public unsafe partial class CXXCatchStmt : global::CppSharp.Parser.AST.Stmt, IDi
 
                 internal static new CXXCatchStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXCatchStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20374,6 +20622,8 @@ public unsafe partial class CXXTryStmt : global::CppSharp.Parser.AST.Stmt, IDisp
 
                 internal static new CXXTryStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTryStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20504,6 +20754,8 @@ public unsafe partial class CXXForRangeStmt : global::CppSharp.Parser.AST.Stmt,
 
                 internal static new CXXForRangeStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXForRangeStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20763,6 +21015,8 @@ public unsafe partial class MSDependentExistsStmt : global::CppSharp.Parser.AST.
 
                 internal static new MSDependentExistsStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSDependentExistsStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -20953,6 +21207,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static CtorArgs __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new CtorArgs(native.ToPointer(), skipVTables);
                     }
 
@@ -21031,6 +21287,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new CoroutineBodyStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoroutineBodyStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -21300,6 +21558,8 @@ public enum SubStmt
 
                 internal static new CoreturnStmt __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoreturnStmt(native.ToPointer(), skipVTables);
                 }
 
@@ -21775,6 +22035,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Classification __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Classification(native.ToPointer(), skipVTables);
                     }
 
@@ -21957,6 +22219,8 @@ public bool IsModifiable
 
                 internal static new Expr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new Expr(native.ToPointer(), skipVTables);
                 }
 
@@ -22252,6 +22516,8 @@ public unsafe partial class FullExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new FullExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FullExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22372,6 +22638,8 @@ public unsafe partial class ConstantExpr : global::CppSharp.Parser.AST.FullExpr,
 
                 internal static new ConstantExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConstantExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22467,6 +22735,8 @@ public unsafe partial class OpaqueValueExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new OpaqueValueExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OpaqueValueExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22611,6 +22881,8 @@ public unsafe partial class DeclRefExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new DeclRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DeclRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -22862,6 +23134,8 @@ public unsafe partial class IntegerLiteral : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new IntegerLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new IntegerLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -22982,6 +23256,8 @@ public unsafe partial class FixedPointLiteral : global::CppSharp.Parser.AST.Expr
 
                 internal static new FixedPointLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FixedPointLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23112,6 +23388,8 @@ public enum CharacterKind
 
                 internal static new CharacterLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CharacterLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23246,6 +23524,8 @@ public unsafe partial class FloatingLiteral : global::CppSharp.Parser.AST.Expr,
 
                 internal static new FloatingLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FloatingLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23377,6 +23657,8 @@ public unsafe partial class ImaginaryLiteral : global::CppSharp.Parser.AST.Expr,
 
                 internal static new ImaginaryLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImaginaryLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23509,6 +23791,8 @@ public enum StringKind
 
                 internal static new StringLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StringLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -23830,6 +24114,8 @@ public enum IdentKind
 
                 internal static new PredefinedExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PredefinedExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -23950,6 +24236,8 @@ public unsafe partial class ParenExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new ParenExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParenExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24093,6 +24381,8 @@ public unsafe partial class UnaryOperator : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new UnaryOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -24333,6 +24623,8 @@ public unsafe partial class OffsetOfExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new OffsetOfExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OffsetOfExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24484,6 +24776,8 @@ public unsafe partial class UnaryExprOrTypeTraitExpr : global::CppSharp.Parser.A
 
                 internal static new UnaryExprOrTypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnaryExprOrTypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24676,6 +24970,8 @@ public unsafe partial class ArraySubscriptExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArraySubscriptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArraySubscriptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24863,6 +25159,8 @@ public unsafe partial class CallExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new CallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -24949,8 +25247,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -25084,8 +25382,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -25136,6 +25434,8 @@ public unsafe partial class MemberExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new MemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25400,6 +25700,8 @@ public unsafe partial class CompoundLiteralExpr : global::CppSharp.Parser.AST.Ex
 
                 internal static new CompoundLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25543,6 +25845,8 @@ public unsafe partial class CastExpr : global::CppSharp.Parser.AST.Expr, IDispos
                 private bool __castKindName_OwnsNativeMemory = false;
                 internal static new CastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25770,6 +26074,8 @@ public enum OnStack_t
 
                 internal static new ImplicitCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImplicitCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -25886,6 +26192,8 @@ public unsafe partial class ExplicitCastExpr : global::CppSharp.Parser.AST.CastE
 
                 internal static new ExplicitCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExplicitCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -26017,6 +26325,8 @@ public unsafe partial class CStyleCastExpr : global::CppSharp.Parser.AST.Explici
 
                 internal static new CStyleCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CStyleCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -26160,6 +26470,8 @@ public unsafe partial class BinaryOperator : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new BinaryOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26558,6 +26870,8 @@ public unsafe partial class CompoundAssignOperator : global::CppSharp.Parser.AST
 
                 internal static new CompoundAssignOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CompoundAssignOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26705,6 +27019,8 @@ public unsafe partial class AbstractConditionalOperator : global::CppSharp.Parse
 
                 internal static new AbstractConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AbstractConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -26885,6 +27201,8 @@ public unsafe partial class ConditionalOperator : global::CppSharp.Parser.AST.Ab
 
                 internal static new ConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -27011,6 +27329,8 @@ public unsafe partial class BinaryConditionalOperator : global::CppSharp.Parser.
 
                 internal static new BinaryConditionalOperator __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BinaryConditionalOperator(native.ToPointer(), skipVTables);
                 }
 
@@ -27133,6 +27453,8 @@ public unsafe partial class AddrLabelExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new AddrLabelExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AddrLabelExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27253,6 +27575,8 @@ public unsafe partial class StmtExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new StmtExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new StmtExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27388,6 +27712,8 @@ public unsafe partial class ShuffleVectorExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ShuffleVectorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ShuffleVectorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27521,6 +27847,8 @@ public unsafe partial class ConvertVectorExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ConvertVectorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ConvertVectorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27661,6 +27989,8 @@ public unsafe partial class ChooseExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new ChooseExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ChooseExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27862,6 +28192,8 @@ public unsafe partial class GNUNullExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new GNUNullExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GNUNullExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -27970,6 +28302,8 @@ public unsafe partial class VAArgExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new VAArgExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new VAArgExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -28126,6 +28460,8 @@ public unsafe partial class InitListExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new InitListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new InitListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -28425,6 +28761,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static Designator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new Designator(native.ToPointer(), skipVTables);
                     }
 
@@ -28679,6 +29017,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static FieldDesignator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new FieldDesignator(native.ToPointer(), skipVTables);
                     }
 
@@ -28787,6 +29127,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static ArrayOrRangeDesignator __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new ArrayOrRangeDesignator(native.ToPointer(), skipVTables);
                     }
 
@@ -28865,6 +29207,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new DesignatedInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DesignatedInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29037,6 +29381,8 @@ public unsafe partial class NoInitExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new NoInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new NoInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29130,6 +29476,8 @@ public unsafe partial class DesignatedInitUpdateExpr : global::CppSharp.Parser.A
 
                 internal static new DesignatedInitUpdateExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DesignatedInitUpdateExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29251,6 +29599,8 @@ public unsafe partial class ArrayInitLoopExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new ArrayInitLoopExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayInitLoopExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29370,6 +29720,8 @@ public unsafe partial class ArrayInitIndexExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArrayInitIndexExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayInitIndexExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29461,6 +29813,8 @@ public unsafe partial class ImplicitValueInitExpr : global::CppSharp.Parser.AST.
 
                 internal static new ImplicitValueInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ImplicitValueInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29556,6 +29910,8 @@ public unsafe partial class ParenListExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new ParenListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ParenListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29695,6 +30051,8 @@ public unsafe partial class GenericSelectionExpr : global::CppSharp.Parser.AST.E
 
                 internal static new GenericSelectionExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new GenericSelectionExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -29897,6 +30255,8 @@ public unsafe partial class ExtVectorElementExpr : global::CppSharp.Parser.AST.E
 
                 internal static new ExtVectorElementExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExtVectorElementExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30057,6 +30417,8 @@ public unsafe partial class BlockExpr : global::CppSharp.Parser.AST.Expr, IDispo
 
                 internal static new BlockExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new BlockExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30178,6 +30540,8 @@ public unsafe partial class AsTypeExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new AsTypeExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AsTypeExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30313,6 +30677,8 @@ public unsafe partial class PseudoObjectExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new PseudoObjectExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PseudoObjectExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30523,6 +30889,8 @@ public enum AtomicOp
 
                 internal static new AtomicExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new AtomicExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30818,6 +31186,8 @@ public unsafe partial class TypoExpr : global::CppSharp.Parser.AST.Expr, IDispos
 
                 internal static new TypoExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypoExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -30925,6 +31295,8 @@ public unsafe partial class CXXOperatorCallExpr : global::CppSharp.Parser.AST.Ca
 
                 internal static new CXXOperatorCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXOperatorCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31100,6 +31472,8 @@ public unsafe partial class CXXMemberCallExpr : global::CppSharp.Parser.AST.Call
 
                 internal static new CXXMemberCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXMemberCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31250,6 +31624,8 @@ public unsafe partial class CUDAKernelCallExpr : global::CppSharp.Parser.AST.Cal
 
                 internal static new CUDAKernelCallExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CUDAKernelCallExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31390,6 +31766,8 @@ public unsafe partial class CXXNamedCastExpr : global::CppSharp.Parser.AST.Expli
                 private bool __castName_OwnsNativeMemory = false;
                 internal static new CXXNamedCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNamedCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31576,6 +31954,8 @@ public unsafe partial class CXXStaticCastExpr : global::CppSharp.Parser.AST.CXXN
 
                 internal static new CXXStaticCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXStaticCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31681,6 +32061,8 @@ public unsafe partial class CXXDynamicCastExpr : global::CppSharp.Parser.AST.CXX
 
                 internal static new CXXDynamicCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDynamicCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31798,6 +32180,8 @@ public unsafe partial class CXXReinterpretCastExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXReinterpretCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXReinterpretCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -31902,6 +32286,8 @@ public unsafe partial class CXXConstCastExpr : global::CppSharp.Parser.AST.CXXNa
 
                 internal static new CXXConstCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32018,6 +32404,8 @@ public enum LiteralOperatorKind
 
                 internal static new UserDefinedLiteral __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UserDefinedLiteral(native.ToPointer(), skipVTables);
                 }
 
@@ -32170,6 +32558,8 @@ public unsafe partial class CXXBoolLiteralExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new CXXBoolLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXBoolLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32289,6 +32679,8 @@ public unsafe partial class CXXNullPtrLiteralExpr : global::CppSharp.Parser.AST.
 
                 internal static new CXXNullPtrLiteralExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNullPtrLiteralExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32394,6 +32786,8 @@ public unsafe partial class CXXStdInitializerListExpr : global::CppSharp.Parser.
 
                 internal static new CXXStdInitializerListExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXStdInitializerListExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32502,6 +32896,8 @@ public unsafe partial class CXXTypeidExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXTypeidExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTypeidExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32638,6 +33034,8 @@ public unsafe partial class MSPropertyRefExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new MSPropertyRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSPropertyRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32786,6 +33184,8 @@ public unsafe partial class MSPropertySubscriptExpr : global::CppSharp.Parser.AS
 
                 internal static new MSPropertySubscriptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MSPropertySubscriptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -32924,6 +33324,8 @@ public unsafe partial class CXXUuidofExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXUuidofExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXUuidofExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33077,6 +33479,8 @@ public unsafe partial class CXXThisExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new CXXThisExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXThisExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33197,6 +33601,8 @@ public unsafe partial class CXXThrowExpr : global::CppSharp.Parser.AST.Expr, IDi
 
                 internal static new CXXThrowExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXThrowExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33330,6 +33736,8 @@ public unsafe partial class CXXDefaultArgExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new CXXDefaultArgExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDefaultArgExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33450,6 +33858,8 @@ public unsafe partial class CXXDefaultInitExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new CXXDefaultInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDefaultInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33570,6 +33980,8 @@ public unsafe partial class CXXBindTemporaryExpr : global::CppSharp.Parser.AST.E
 
                 internal static new CXXBindTemporaryExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXBindTemporaryExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33710,6 +34122,8 @@ public enum ConstructionKind
 
                 internal static new CXXConstructExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXConstructExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -33796,8 +34210,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -33930,8 +34344,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -33973,6 +34387,8 @@ public unsafe partial class CXXInheritedCtorInitExpr : global::CppSharp.Parser.A
 
                 internal static new CXXInheritedCtorInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXInheritedCtorInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34115,6 +34531,8 @@ public unsafe partial class CXXFunctionalCastExpr : global::CppSharp.Parser.AST.
 
                 internal static new CXXFunctionalCastExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXFunctionalCastExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34257,6 +34675,8 @@ public unsafe partial class CXXTemporaryObjectExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXTemporaryObjectExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXTemporaryObjectExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34391,6 +34811,8 @@ public unsafe partial class LambdaExpr : global::CppSharp.Parser.AST.Expr, IDisp
 
                 internal static new LambdaExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new LambdaExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34468,8 +34890,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetcaptureInits(uint i)
                 {
-                    var __ret = __Internal.GetcaptureInits(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetcaptureInits(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -34612,8 +35034,8 @@ public uint GetcaptureInitsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetcaptureInitsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetcaptureInitsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -34653,6 +35075,8 @@ public unsafe partial class CXXScalarValueInitExpr : global::CppSharp.Parser.AST
 
                 internal static new CXXScalarValueInitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXScalarValueInitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34794,6 +35218,8 @@ public enum InitializationStyle
 
                 internal static new CXXNewExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNewExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -34871,8 +35297,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr GetplacementArguments(uint i)
                 {
-                    var __ret = __Internal.GetplacementArguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.GetplacementArguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -35087,8 +35513,8 @@ public uint GetplacementArgumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetplacementArgumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetplacementArgumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -35133,6 +35559,8 @@ public unsafe partial class CXXDeleteExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new CXXDeleteExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDeleteExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35314,6 +35742,8 @@ public unsafe partial class CXXPseudoDestructorExpr : global::CppSharp.Parser.AS
 
                 internal static new CXXPseudoDestructorExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXPseudoDestructorExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35515,6 +35945,8 @@ public unsafe partial class TypeTraitExpr : global::CppSharp.Parser.AST.Expr, ID
 
                 internal static new TypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new TypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35635,6 +36067,8 @@ public unsafe partial class ArrayTypeTraitExpr : global::CppSharp.Parser.AST.Exp
 
                 internal static new ArrayTypeTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ArrayTypeTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35770,6 +36204,8 @@ public unsafe partial class ExpressionTraitExpr : global::CppSharp.Parser.AST.Ex
 
                 internal static new ExpressionTraitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExpressionTraitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -35930,6 +36366,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static FindResult __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new FindResult(native.ToPointer(), skipVTables);
                     }
 
@@ -36008,6 +36446,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new OverloadExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new OverloadExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36229,6 +36669,8 @@ public unsafe partial class UnresolvedLookupExpr : global::CppSharp.Parser.AST.O
 
                 internal static new UnresolvedLookupExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedLookupExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36354,6 +36796,8 @@ public unsafe partial class DependentScopeDeclRefExpr : global::CppSharp.Parser.
 
                 internal static new DependentScopeDeclRefExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentScopeDeclRefExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36539,6 +36983,8 @@ public unsafe partial class ExprWithCleanups : global::CppSharp.Parser.AST.FullE
 
                 internal static new ExprWithCleanups __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new ExprWithCleanups(native.ToPointer(), skipVTables);
                 }
 
@@ -36677,6 +37123,8 @@ public unsafe partial class CXXUnresolvedConstructExpr : global::CppSharp.Parser
 
                 internal static new CXXUnresolvedConstructExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXUnresolvedConstructExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -36754,8 +37202,8 @@ internal protected override void Dispose(bool disposing, bool callNativeDtor )
 
                 public global::CppSharp.Parser.AST.Expr Getarguments(uint i)
                 {
-                    var __ret = __Internal.Getarguments(__Instance, i);
-                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(__ret, false);
+                    var ___ret = __Internal.Getarguments(__Instance, i);
+                    var __result0 = global::CppSharp.Parser.AST.Expr.__GetOrCreateInstance(___ret, false);
                     return __result0;
                 }
 
@@ -36844,8 +37292,8 @@ public uint GetargumentsCount
                 {
                     get
                     {
-                        var __ret = __Internal.GetargumentsCount(__Instance);
-                        return __ret;
+                        var ___ret = __Internal.GetargumentsCount(__Instance);
+                        return ___ret;
                     }
                 }
             }
@@ -36897,6 +37345,8 @@ public unsafe partial class CXXDependentScopeMemberExpr : global::CppSharp.Parse
 
                 internal static new CXXDependentScopeMemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXDependentScopeMemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37178,6 +37628,8 @@ public unsafe partial class UnresolvedMemberExpr : global::CppSharp.Parser.AST.O
 
                 internal static new UnresolvedMemberExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new UnresolvedMemberExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37365,6 +37817,8 @@ public unsafe partial class CXXNoexceptExpr : global::CppSharp.Parser.AST.Expr,
 
                 internal static new CXXNoexceptExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXNoexceptExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37485,6 +37939,8 @@ public unsafe partial class PackExpansionExpr : global::CppSharp.Parser.AST.Expr
 
                 internal static new PackExpansionExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new PackExpansionExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37610,6 +38066,8 @@ public unsafe partial class SizeOfPackExpr : global::CppSharp.Parser.AST.Expr, I
 
                 internal static new SizeOfPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SizeOfPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37783,6 +38241,8 @@ public unsafe partial class SubstNonTypeTemplateParmExpr : global::CppSharp.Pars
 
                 internal static new SubstNonTypeTemplateParmExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SubstNonTypeTemplateParmExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -37904,6 +38364,8 @@ public unsafe partial class SubstNonTypeTemplateParmPackExpr : global::CppSharp.
 
                 internal static new SubstNonTypeTemplateParmPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new SubstNonTypeTemplateParmPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38026,6 +38488,8 @@ public unsafe partial class FunctionParmPackExpr : global::CppSharp.Parser.AST.E
 
                 internal static new FunctionParmPackExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new FunctionParmPackExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38177,6 +38641,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
                     internal static ExtraState __CreateInstance(__IntPtr native, bool skipVTables = false)
                     {
+                        if (native == __IntPtr.Zero)
+                            return null;
                         return new ExtraState(native.ToPointer(), skipVTables);
                     }
 
@@ -38255,6 +38721,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
                 internal static new MaterializeTemporaryExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new MaterializeTemporaryExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38408,6 +38876,8 @@ public unsafe partial class CXXFoldExpr : global::CppSharp.Parser.AST.Expr, IDis
 
                 internal static new CXXFoldExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CXXFoldExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38626,6 +39096,8 @@ public enum SubExpr
 
                 internal static new CoroutineSuspendExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoroutineSuspendExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38823,6 +39295,8 @@ public unsafe partial class CoawaitExpr : global::CppSharp.Parser.AST.CoroutineS
 
                 internal static new CoawaitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoawaitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -38944,6 +39418,8 @@ public unsafe partial class DependentCoawaitExpr : global::CppSharp.Parser.AST.E
 
                 internal static new DependentCoawaitExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new DependentCoawaitExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -39084,6 +39560,8 @@ public unsafe partial class CoyieldExpr : global::CppSharp.Parser.AST.CoroutineS
 
                 internal static new CoyieldExpr __CreateInstance(__IntPtr native, bool skipVTables = false)
                 {
+                    if (native == __IntPtr.Zero)
+                        return null;
                     return new CoyieldExpr(native.ToPointer(), skipVTables);
                 }
 
@@ -39255,6 +39733,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserTargetInfo __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserTargetInfo(native.ToPointer(), skipVTables);
             }
 
@@ -39927,6 +40407,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static Parser __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new Parser(native.ToPointer(), skipVTables);
             }
 
@@ -40137,6 +40619,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static CppParserOptions __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new CppParserOptions(native.ToPointer(), skipVTables);
             }
 
@@ -40219,8 +40703,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public string GetArguments(uint i)
             {
-                var __ret = __Internal.GetArguments(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetArguments(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddArguments(string s)
@@ -40235,8 +40719,8 @@ public void ClearArguments()
 
             public string GetCompilationOptions(uint i)
             {
-                var __ret = __Internal.GetCompilationOptions(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetCompilationOptions(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddCompilationOptions(string s)
@@ -40251,8 +40735,8 @@ public void ClearCompilationOptions()
 
             public string GetSourceFiles(uint i)
             {
-                var __ret = __Internal.GetSourceFiles(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSourceFiles(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSourceFiles(string s)
@@ -40267,8 +40751,8 @@ public void ClearSourceFiles()
 
             public string GetIncludeDirs(uint i)
             {
-                var __ret = __Internal.GetIncludeDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetIncludeDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddIncludeDirs(string s)
@@ -40283,8 +40767,8 @@ public void ClearIncludeDirs()
 
             public string GetSystemIncludeDirs(uint i)
             {
-                var __ret = __Internal.GetSystemIncludeDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSystemIncludeDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSystemIncludeDirs(string s)
@@ -40299,8 +40783,8 @@ public void ClearSystemIncludeDirs()
 
             public string GetDefines(uint i)
             {
-                var __ret = __Internal.GetDefines(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetDefines(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddDefines(string s)
@@ -40315,8 +40799,8 @@ public void ClearDefines()
 
             public string GetUndefines(uint i)
             {
-                var __ret = __Internal.GetUndefines(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetUndefines(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddUndefines(string s)
@@ -40331,8 +40815,8 @@ public void ClearUndefines()
 
             public string GetSupportedStdTypes(uint i)
             {
-                var __ret = __Internal.GetSupportedStdTypes(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSupportedStdTypes(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSupportedStdTypes(string s)
@@ -40347,8 +40831,8 @@ public void ClearSupportedStdTypes()
 
             public string GetSupportedFunctionTemplates(uint i)
             {
-                var __ret = __Internal.GetSupportedFunctionTemplates(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetSupportedFunctionTemplates(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddSupportedFunctionTemplates(string s)
@@ -40510,9 +40994,9 @@ public string ClangVersion
             {
                 get
                 {
-                    var __ret = new global::Std.BasicString.__Internalc__N_std_S_basic_string__C___N_std_S_char_traits__C___N_std_S_allocator__C();
-                    __Internal.GetClangVersion(__Instance, new IntPtr(&__ret));
-                    var __basicStringRet0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__CreateInstance(new __IntPtr(&__ret));
+                    var ___ret = new global::Std.BasicString.__Internalc__N_std_S_basic_string__C___N_std_S_char_traits__C___N_std_S_allocator__C();
+                    __Internal.GetClangVersion(__Instance, new IntPtr(&___ret));
+                    var __basicStringRet0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__CreateInstance(new __IntPtr(&___ret));
                     var __retString0 = global::Std.BasicStringExtensions.Data(__basicStringRet0);
                     __basicStringRet0.Dispose();
                     return __retString0;
@@ -40523,8 +41007,8 @@ public uint ArgumentsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetArgumentsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetArgumentsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40532,8 +41016,8 @@ public uint CompilationOptionsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetCompilationOptionsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetCompilationOptionsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40541,8 +41025,8 @@ public uint SourceFilesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSourceFilesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSourceFilesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40550,8 +41034,8 @@ public uint IncludeDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetIncludeDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetIncludeDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40559,8 +41043,8 @@ public uint SystemIncludeDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSystemIncludeDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSystemIncludeDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40568,8 +41052,8 @@ public uint DefinesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetDefinesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetDefinesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40577,8 +41061,8 @@ public uint UndefinesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetUndefinesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetUndefinesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40586,8 +41070,8 @@ public uint SupportedStdTypesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSupportedStdTypesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSupportedStdTypesCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40595,8 +41079,8 @@ public uint SupportedFunctionTemplatesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetSupportedFunctionTemplatesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetSupportedFunctionTemplatesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -40676,6 +41160,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static CppLinkerOptions __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new CppLinkerOptions(native.ToPointer(), skipVTables);
             }
 
@@ -40758,8 +41244,8 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public string GetArguments(uint i)
             {
-                var __ret = __Internal.GetArguments(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetArguments(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddArguments(string s)
@@ -40774,8 +41260,8 @@ public void ClearArguments()
 
             public string GetLibraryDirs(uint i)
             {
-                var __ret = __Internal.GetLibraryDirs(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetLibraryDirs(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddLibraryDirs(string s)
@@ -40790,8 +41276,8 @@ public void ClearLibraryDirs()
 
             public string GetLibraries(uint i)
             {
-                var __ret = __Internal.GetLibraries(__Instance, i);
-                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+                var ___ret = __Internal.GetLibraries(__Instance, i);
+                return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
             }
 
             public void AddLibraries(string s)
@@ -40808,8 +41294,8 @@ public uint ArgumentsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetArgumentsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetArgumentsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40817,8 +41303,8 @@ public uint LibraryDirsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibraryDirsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibraryDirsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -40826,8 +41312,8 @@ public uint LibrariesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibrariesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibrariesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -40873,6 +41359,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserDiagnostic __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserDiagnostic(native.ToPointer(), skipVTables);
             }
 
@@ -41085,6 +41573,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ParserResult __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ParserResult(native.ToPointer(), skipVTables);
             }
 
@@ -41167,11 +41657,11 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
 
             public global::CppSharp.Parser.ParserDiagnostic GetDiagnostics(uint i)
             {
-                var __ret = new global::CppSharp.Parser.ParserDiagnostic.__Internal();
-                __Internal.GetDiagnostics(__Instance, new IntPtr(&__ret), i);
-                var ____ret = global::CppSharp.Parser.ParserDiagnostic.__CreateInstance(__ret);
-                global::CppSharp.Parser.ParserDiagnostic.__Internal.dtor(new __IntPtr(&__ret));
-                return ____ret;
+                var ___ret = new global::CppSharp.Parser.ParserDiagnostic.__Internal();
+                __Internal.GetDiagnostics(__Instance, new IntPtr(&___ret), i);
+                var _____ret = global::CppSharp.Parser.ParserDiagnostic.__CreateInstance(___ret);
+                global::CppSharp.Parser.ParserDiagnostic.__Internal.dtor(new __IntPtr(&___ret));
+                return _____ret;
             }
 
             public void AddDiagnostics(global::CppSharp.Parser.ParserDiagnostic s)
@@ -41189,8 +41679,8 @@ public void ClearDiagnostics()
 
             public global::CppSharp.Parser.AST.NativeLibrary GetLibraries(uint i)
             {
-                var __ret = __Internal.GetLibraries(__Instance, i);
-                var __result0 = global::CppSharp.Parser.AST.NativeLibrary.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.GetLibraries(__Instance, i);
+                var __result0 = global::CppSharp.Parser.AST.NativeLibrary.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41239,8 +41729,8 @@ public uint DiagnosticsCount
             {
                 get
                 {
-                    var __ret = __Internal.GetDiagnosticsCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetDiagnosticsCount(__Instance);
+                    return ___ret;
                 }
             }
 
@@ -41248,8 +41738,8 @@ public uint LibrariesCount
             {
                 get
                 {
-                    var __ret = __Internal.GetLibrariesCount(__Instance);
-                    return __ret;
+                    var ___ret = __Internal.GetLibrariesCount(__Instance);
+                    return ___ret;
                 }
             }
         }
@@ -41298,6 +41788,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::C
 
             internal static ClangParser __CreateInstance(__IntPtr native, bool skipVTables = false)
             {
+                if (native == __IntPtr.Zero)
+                    return null;
                 return new ClangParser(native.ToPointer(), skipVTables);
             }
 
@@ -41375,16 +41867,16 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
             public static global::CppSharp.Parser.ParserResult ParseHeader(global::CppSharp.Parser.CppParserOptions Opts)
             {
                 var __arg0 = Opts is null ? __IntPtr.Zero : Opts.__Instance;
-                var __ret = __Internal.ParseHeader(__arg0);
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.ParseHeader(__arg0);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
             public static global::CppSharp.Parser.ParserResult ParseLibrary(global::CppSharp.Parser.CppLinkerOptions Opts)
             {
                 var __arg0 = Opts is null ? __IntPtr.Zero : Opts.__Instance;
-                var __ret = __Internal.ParseLibrary(__arg0);
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var ___ret = __Internal.ParseLibrary(__arg0);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41395,9 +41887,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString2 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString2, File);
                 var __arg2 = __basicString2.__Instance;
-                var __ret = __Internal.Build(__arg0, __arg1, __arg2, Last);
+                var ___ret = __Internal.Build(__arg0, __arg1, __arg2, Last);
                 __basicString2.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41407,9 +41899,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString1 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString1, File);
                 var __arg1 = __basicString1.__Instance;
-                var __ret = __Internal.Compile(__arg0, __arg1);
+                var ___ret = __Internal.Compile(__arg0, __arg1);
                 __basicString1.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
 
@@ -41420,9 +41912,9 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 var __basicString2 = new global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>();
                 global::Std.BasicStringExtensions.Assign(__basicString2, File);
                 var __arg2 = __basicString2.__Instance;
-                var __ret = __Internal.Link(__arg0, __arg1, __arg2, Last);
+                var ___ret = __Internal.Link(__arg0, __arg1, __arg2, Last);
                 __basicString2.Dispose();
-                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(__ret, false);
+                var __result0 = global::CppSharp.Parser.ParserResult.__GetOrCreateInstance(___ret, false);
                 return __result0;
             }
         }
diff --git a/src/CppParser/Bindings/CSharp/x86_64-pc-win32-msvc/Std.cs b/src/CppParser/Bindings/CSharp/x86_64-pc-win32-msvc/Std.cs
index e8dda782c..8a426d693 100644
--- a/src/CppParser/Bindings/CSharp/x86_64-pc-win32-msvc/Std.cs
+++ b/src/CppParser/Bindings/CSharp/x86_64-pc-win32-msvc/Std.cs
@@ -15,6 +15,8 @@
 
 [assembly:InternalsVisibleTo("CppSharp.CppParser")]
 
+#pragma warning disable CS0109 // Member does not hide an inherited member; new keyword is not required
+
 namespace Std
 {
     namespace Vector
@@ -99,6 +101,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static Allocator<_Ty> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new Allocator<_Ty>(native.ToPointer(), skipVTables);
         }
 
@@ -167,15 +171,6 @@ internal protected virtual void Dispose(bool disposing, bool callNativeDtor )
                 return;
             NativeToManagedMap.TryRemove(__Instance, out _);
             DisposePartial(disposing);
-            if (callNativeDtor)
-            {
-                var ___Ty = typeof(_Ty);
-                if (___Ty.IsAssignableFrom(typeof(sbyte)))
-                {
-                    return;
-                }
-                throw new ArgumentOutOfRangeException("_Ty", string.Join(", ", new[] { typeof(_Ty).FullName }), "global::Std.Allocator<_Ty> maps a C++ template class and therefore it only supports a limited set of types and their subclasses: <sbyte>.");
-            }
             if (__ownsNativeInstance)
                 Marshal.FreeHGlobal(__Instance);
             __Instance = IntPtr.Zero;
@@ -243,6 +238,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static BasicString<_Elem, _Traits, _Alloc> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new BasicString<_Elem, _Traits, _Alloc>(native.ToPointer(), skipVTables);
         }
 
@@ -389,6 +386,8 @@ internal static bool __TryGetNativeToManagedMapping(IntPtr native, out global::S
 
         internal static CharTraits<_Elem> __CreateInstance(__IntPtr native, bool skipVTables = false)
         {
+            if (native == __IntPtr.Zero)
+                return null;
             return new CharTraits<_Elem>(native.ToPointer(), skipVTables);
         }
 
@@ -463,16 +462,16 @@ public partial struct __Internal
         public static global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> Assign(this global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> @this, string _Ptr)
         {
             var __arg0 = @this is null ? __IntPtr.Zero : @this.__Instance;
-            var __ret = __Internal.Assign(__arg0, _Ptr);
-            var __result0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__GetOrCreateInstance(__ret, false);
+            var ___ret = __Internal.Assign(__arg0, _Ptr);
+            var __result0 = global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>>.__GetOrCreateInstance(___ret, false);
             return __result0;
         }
 
         public static string Data(this global::Std.BasicString<sbyte, global::Std.CharTraits<sbyte>, global::Std.Allocator<sbyte>> @this)
         {
             var __arg0 = @this is null ? __IntPtr.Zero : @this.__Instance;
-            var __ret = __Internal.Data(__arg0);
-            return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, __ret);
+            var ___ret = __Internal.Data(__arg0);
+            return CppSharp.Runtime.MarshalUtil.GetString(global::System.Text.Encoding.UTF8, ___ret);
         }
     }
 }