Add options

src/LanguageServer/Protocol/Features/Options/WorkspaceConfigurationOptionsStorage.cs

@@ -13,6 +13,8 @@ public static WorkspaceConfigurationOptions GetWorkspaceConfigurationOptions(thi
             SourceGeneratorExecution:
                 globalOptions.GetOption(SourceGeneratorExecution) ??
                 (globalOptions.GetOption(SourceGeneratorExecutionBalancedFeatureFlag) ? SourceGeneratorExecutionPreference.Balanced : SourceGeneratorExecutionPreference.Automatic),
+            ReloadChangedAnalyzerReferences:
+                globalOptions.GetOption(ReloadChangedAnalyzerReferences) ?? globalOptions.GetOption(ReloadChangedAnalyzerReferencesFeatureFlag),
             ValidateCompilationTrackerStates: globalOptions.GetOption(ValidateCompilationTrackerStates));
 
     public static readonly Option2<bool> ValidateCompilationTrackerStates = new(
@@ -28,4 +30,12 @@ public static WorkspaceConfigurationOptions GetWorkspaceConfigurationOptions(thi
 
     public static readonly Option2<bool> SourceGeneratorExecutionBalancedFeatureFlag = new(
         "dotnet_source_generator_execution_balanced_feature_flag", true);
+
+    public static readonly Option2<bool?> ReloadChangedAnalyzerReferences = new(
+        "dotnet_reload_changed_analyzer_references",
+        defaultValue: null,
+        isEditorConfigOption: true);
+
+    public static readonly Option2<bool> ReloadChangedAnalyzerReferencesFeatureFlag = new(
+        "dotnet_reload_changed_analyzer_references_feature_flag", true);
 }

src/VisualStudio/CSharp/Impl/Options/AdvancedOptionPageControl.xaml

@@ -53,7 +53,14 @@
                     </StackPanel>
 
                     <CheckBox x:Name="Run_code_analysis_in_separate_process"
-                              Content="{x:Static local:AdvancedOptionPageStrings.Option_run_code_analysis_in_separate_process}" />
+                              Content="{x:Static local:AdvancedOptionPageStrings.Option_run_code_analysis_in_separate_process}"
+                              Checked="RunCodeAnalysisInSeparateProcess_Checked"
+                              Unchecked="RunCodeAnalysisInSeparateProcess_Unchecked" />
+
+                    <StackPanel Margin="15, 0, 0, 0">
+                        <CheckBox x:Name="Automatically_reload_updated_analyzers_and_generators"
+                                  Content="{x:Static local:AdvancedOptionPageStrings.Option_Automatically_reload_updated_analyzers_and_generators}" />
+                    </StackPanel>
 
                     <CheckBox x:Name="Show_Remove_Unused_References_command_in_Solution_Explorer_experimental"
                               Content="{x:Static local:AdvancedOptionPageStrings.Option_Show_Remove_Unused_References_command_in_Solution_Explorer_experimental}" />

src/VisualStudio/CSharp/Impl/Options/AdvancedOptionPageControl.xaml.cs

@@ -70,6 +70,12 @@ public AdvancedOptionPageControl(OptionStore optionStore, IComponentModel compon
             BindToOption(on_the_right_edge_of_the_editor_window, InlineDiagnosticsOptionsStorage.Location, InlineDiagnosticsLocations.PlacedAtEndOfEditor, LanguageNames.CSharp);
 
             BindToOption(Run_code_analysis_in_separate_process, RemoteHostOptionsStorage.OOP64Bit);
+            BindToOption(Automatically_reload_updated_analyzers_and_generators, WorkspaceConfigurationOptionsStorage.ReloadChangedAnalyzerReferences, () =>
+            {
+                // If the option has not been set by the user, check if the option is enabled from experimentation. If
+                // so, default to that.
+                return optionStore.GetOption(WorkspaceConfigurationOptionsStorage.ReloadChangedAnalyzerReferencesFeatureFlag);
+            });
 
             BindToOption(Enable_file_logging_for_diagnostics, VisualStudioLoggingOptionsStorage.EnableFileLoggingForDiagnostics);
             BindToOption(Skip_analyzers_for_implicitly_triggered_builds, FeatureOnOffOptions.SkipAnalyzersForImplicitlyTriggeredBuilds);
@@ -272,6 +278,16 @@ private void DisplayInlineTypeHints_Unchecked(object sender, RoutedEventArgs e)
             UpdateInlineHintsOptions();
         }
 
+        private void RunCodeAnalysisInSeparateProcess_Checked(object sender, RoutedEventArgs e)
+        {
+            Automatically_reload_updated_analyzers_and_generators.IsEnabled = true;
+        }
+
+        private void RunCodeAnalysisInSeparateProcess_Unchecked(object sender, RoutedEventArgs e)
+        {
+            Automatically_reload_updated_analyzers_and_generators.IsEnabled = false;
+        }
+
         private void EnterOutliningMode_Checked(object sender, RoutedEventArgs e)
         {
             Collapse_regions_on_file_open.IsEnabled = true;

src/VisualStudio/CSharp/Impl/Options/AdvancedOptionPageStrings.cs

@@ -416,5 +416,8 @@ public static string Option_Automatic_Run_generators_after_any_change
 
         public static string Option_Balanced_Run_generators_after_saving_or_building
             => ServicesVSResources.Balanced_Run_generators_after_saving_or_building;
+
+        public static string Option_Automatically_reload_updated_analyzers_and_generators
+            => ServicesVSResources.Automatically_reload_updated_analyzers_and_generators;
     }
 }

src/VisualStudio/Core/Def/ServicesVSResources.resx

@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
-  <!--
-    Microsoft ResX Schema
-
+  <!-- 
+    Microsoft ResX Schema 
+    
     Version 2.0
-
-    The primary goals of this format is to allow a simple XML format
-    that is mostly human readable. The generation and parsing of the
-    various data types are done through the TypeConverter classes
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
     associated with the data types.
-
+    
     Example:
-
+    
     ... ado.net/XML headers & schema ...
     <resheader name="resmimetype">text/microsoft-resx</resheader>
     <resheader name="version">2.0</resheader>
@@ -26,36 +26,36 @@
         <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
         <comment>This is a comment</comment>
     </data>
-
-    There are any number of "resheader" rows that contain simple
+                
+    There are any number of "resheader" rows that contain simple 
     name/value pairs.
-
-    Each data row contains a name, and value. The row also contains a
-    type or mimetype. Type corresponds to a .NET class that support
-    text/value conversion through the TypeConverter architecture.
-    Classes that don't support this are serialized and stored with the
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
     mimetype set.
-
-    The mimetype is used for serialized objects, and tells the
-    ResXResourceReader how to depersist the object. This is currently not
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
     extensible. For a given mimetype the value must be set accordingly:
-
-    Note - application/x-microsoft.net.object.binary.base64 is the format
-    that the ResXResourceWriter will generate, however the reader can
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
     read any of the formats listed below.
-
+    
     mimetype: application/x-microsoft.net.object.binary.base64
-    value   : The object must be serialized with
+    value   : The object must be serialized with 
             : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
             : and then encoded with base64 encoding.
-
+    
     mimetype: application/x-microsoft.net.object.soap.base64
-    value   : The object must be serialized with
+    value   : The object must be serialized with 
             : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
             : and then encoded with base64 encoding.
 
     mimetype: application/x-microsoft.net.object.bytearray.base64
-    value   : The object must be serialized into a byte array
+    value   : The object must be serialized into a byte array 
             : using a System.ComponentModel.TypeConverter
             : and then encoded with base64 encoding.
     -->
@@ -1940,4 +1940,7 @@ Additional information: {1}</value>
   <data name="Show_hints_for_collection_expressions" xml:space="preserve">
     <value>Show hints for collection expressions</value>
   </data>
+  <data name="Automatically_reload_updated_analyzers_and_generators" xml:space="preserve">
+    <value>Automatically reload updated analyzers and generators (requires restart)</value>
+  </data>
 </root>