New upstream version 1.55.0+dfsg1

[rustc.git] / compiler / rustc_ast / src / ast.rs

diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs
index 93d7a597681339e3cfddea236667e67f4a371667..f851725058d4b689a4d9f6a037dee81889036d76 100644 (file)
--- a/compiler/rustc_ast/src/ast.rs
+++ b/compiler/rustc_ast/src/ast.rs
@@ -677,7 +677,9 @@ pub enum BindingMode {
 
 #[derive(Clone, Encodable, Decodable, Debug)]
 pub enum RangeEnd {
+    /// `..=` or `...`
     Included(RangeSyntax),
+    /// `..`
     Excluded,
 }
 
@@ -689,6 +691,7 @@ pub enum RangeSyntax {
     DotDotEq,
 }
 
+/// All the different flavors of pattern that Rust recognizes.
 #[derive(Clone, Encodable, Decodable, Debug)]
 pub enum PatKind {
     /// Represents a wildcard pattern (`_`).
@@ -729,7 +732,7 @@ pub enum PatKind {
     /// A literal.
     Lit(P<Expr>),
 
-    /// A range pattern (e.g., `1...2`, `1..=2` or `1..2`).
+    /// A range pattern (e.g., `1...2`, `1..2`, `1..`, `..2`, `1..=2`, `..=2`).
     Range(Option<P<Expr>>, Option<P<Expr>>, Spanned<RangeEnd>),
 
     /// A slice pattern `[a, b, c]`.
@@ -1017,7 +1020,7 @@ pub struct Local {
 /// ```
 #[derive(Clone, Encodable, Decodable, Debug)]
 pub struct Arm {
-    pub attrs: Vec<Attribute>,
+    pub attrs: AttrVec,
     /// Match arm pattern, e.g. `10` in `match foo { 10 => {}, _ => {} }`
     pub pat: P<Pat>,
     /// Match arm guard, e.g. `n > 10` in `match foo { n if n > 10 => {}, _ => {} }`
@@ -1935,6 +1938,7 @@ bitflags::bitflags! {
         const NORETURN = 1 << 4;
         const NOSTACK = 1 << 5;
         const ATT_SYNTAX = 1 << 6;
+        const RAW = 1 << 7;
     }
 }
 
@@ -2293,7 +2297,7 @@ pub struct EnumDef {
 #[derive(Clone, Encodable, Decodable, Debug)]
 pub struct Variant {
     /// Attributes of the variant.
-    pub attrs: Vec<Attribute>,
+    pub attrs: AttrVec,
     /// Id of the variant (not the constructor, see `VariantData::ctor_id()`).
     pub id: NodeId,
     /// Span
@@ -2474,7 +2478,7 @@ impl VisibilityKind {
 /// E.g., `bar: usize` as in `struct Foo { bar: usize }`.
 #[derive(Clone, Encodable, Decodable, Debug)]
 pub struct FieldDef {
-    pub attrs: Vec<Attribute>,
+    pub attrs: AttrVec,
     pub id: NodeId,
     pub span: Span,
     pub vis: Visibility,