Update to rust (64c21f9)

syntex_syntax/src/ast.rs

@@ -45,6 +45,7 @@ pub use self::ViewPath_::*;
 pub use self::Visibility::*;
 pub use self::PathParameters::*;
 
+use attr::ThinAttributes;
 use codemap::{Span, Spanned, DUMMY_SP, ExpnId};
 use abi::Abi;
 use ast_util;
@@ -692,8 +693,21 @@ pub enum Stmt_ {
     /// Expr with trailing semi-colon (may have any type):
     StmtSemi(P<Expr>, NodeId),
 
-    StmtMac(P<Mac>, MacStmtStyle),
+    StmtMac(P<Mac>, MacStmtStyle, ThinAttributes),
 }
+
+impl Stmt_ {
+    pub fn attrs(&self) -> &[Attribute] {
+        match *self {
+            StmtDecl(ref d, _) => d.attrs(),
+            StmtExpr(ref e, _) |
+            StmtSemi(ref e, _) => e.attrs(),
+            StmtMac(_, _, Some(ref b)) => b,
+            StmtMac(_, _, None) => &[],
+        }
+    }
+}
+
 #[derive(Clone, Copy, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug)]
 pub enum MacStmtStyle {
     /// The macro statement had a trailing semicolon, e.g. `foo! { ... };`
@@ -718,6 +732,16 @@ pub struct Local {
     pub init: Option<P<Expr>>,
     pub id: NodeId,
     pub span: Span,
+    pub attrs: ThinAttributes,
+}
+
+impl Local {
+    pub fn attrs(&self) -> &[Attribute] {
+        match self.attrs {
+            Some(ref b) => b,
+            None => &[],
+        }
+    }
 }
 
 pub type Decl = Spanned<Decl_>;
@@ -730,6 +754,15 @@ pub enum Decl_ {
     DeclItem(P<Item>),
 }
 
+impl Decl {
+    pub fn attrs(&self) -> &[Attribute] {
+        match self.node {
+            DeclLocal(ref l) => l.attrs(),
+            DeclItem(ref i) => i.attrs(),
+        }
+    }
+}
+
 /// represents one arm of a 'match'
 #[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug)]
 pub struct Arm {
@@ -766,6 +799,16 @@ pub struct Expr {
     pub id: NodeId,
     pub node: Expr_,
     pub span: Span,
+    pub attrs: ThinAttributes
+}
+
+impl Expr {
+    pub fn attrs(&self) -> &[Attribute] {
+        match self.attrs {
+            Some(ref b) => b,
+            None => &[],
+        }
+    }
 }
 
 impl fmt::Debug for Expr {
@@ -1258,7 +1301,7 @@ impl fmt::Debug for IntTy {
 
 impl fmt::Display for IntTy {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{}", ast_util::int_ty_to_string(*self, None))
+        write!(f, "{}", ast_util::int_ty_to_string(*self))
     }
 }
 
@@ -1303,7 +1346,7 @@ impl fmt::Debug for UintTy {
 
 impl fmt::Display for UintTy {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{}", ast_util::uint_ty_to_string(*self, None))
+        write!(f, "{}", ast_util::uint_ty_to_string(*self))
     }
 }
 
@@ -1792,6 +1835,12 @@ pub struct Item {
     pub span: Span,
 }
 
+impl Item {
+    pub fn attrs(&self) -> &[Attribute] {
+        &self.attrs
+    }
+}
+
 #[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug)]
 pub enum Item_ {
     /// An`extern crate` item, with optional original crate name,

syntex_syntax/src/ast_util.rs

@@ -111,26 +111,23 @@ pub fn is_path(e: P<Expr>) -> bool {
     match e.node { ExprPath(..) => true, _ => false }
 }
 
-/// Get a string representation of a signed int type, with its value.
-/// We want to avoid "45int" and "-3int" in favor of "45" and "-3"
-pub fn int_ty_to_string(t: IntTy, val: Option<i64>) -> String {
-    let s = match t {
+pub fn int_ty_to_string(t: IntTy) -> &'static str {
+    match t {
         TyIs => "isize",
         TyI8 => "i8",
         TyI16 => "i16",
         TyI32 => "i32",
         TyI64 => "i64"
-    };
-
-    match val {
-        // cast to a u64 so we can correctly print INT64_MIN. All integral types
-        // are parsed as u64, so we wouldn't want to print an extra negative
-        // sign.
-        Some(n) => format!("{}{}", n as u64, s),
-        None => s.to_string()
     }
 }
 
+pub fn int_val_to_string(t: IntTy, val: i64) -> String {
+    // cast to a u64 so we can correctly print INT64_MIN. All integral types
+    // are parsed as u64, so we wouldn't want to print an extra negative
+    // sign.
+    format!("{}{}", val as u64, int_ty_to_string(t))
+}
+
 pub fn int_ty_max(t: IntTy) -> u64 {
     match t {
         TyI8 => 0x80,
@@ -140,23 +137,20 @@ pub fn int_ty_max(t: IntTy) -> u64 {
     }
 }
 
-/// Get a string representation of an unsigned int type, with its value.
-/// We want to avoid "42u" in favor of "42us". "42uint" is right out.
-pub fn uint_ty_to_string(t: UintTy, val: Option<u64>) -> String {
-    let s = match t {
+pub fn uint_ty_to_string(t: UintTy) -> &'static str {
+    match t {
         TyUs => "usize",
         TyU8 => "u8",
         TyU16 => "u16",
         TyU32 => "u32",
         TyU64 => "u64"
-    };
-
-    match val {
-        Some(n) => format!("{}{}", n, s),
-        None => s.to_string()
     }
 }
 
+pub fn uint_val_to_string(t: UintTy, val: u64) -> String {
+    format!("{}{}", val, uint_ty_to_string(t))
+}
+
 pub fn uint_ty_max(t: UintTy) -> u64 {
     match t {
         TyU8 => 0xff,
@@ -166,10 +160,10 @@ pub fn uint_ty_max(t: UintTy) -> u64 {
     }
 }
 
-pub fn float_ty_to_string(t: FloatTy) -> String {
+pub fn float_ty_to_string(t: FloatTy) -> &'static str {
     match t {
-        TyF32 => "f32".to_string(),
-        TyF64 => "f64".to_string(),
+        TyF32 => "f32",
+        TyF64 => "f64",
     }
 }