diff options
Diffstat (limited to 'compiler/rustc_ast/src/util/parser.rs')
| -rw-r--r-- | compiler/rustc_ast/src/util/parser.rs | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/compiler/rustc_ast/src/util/parser.rs b/compiler/rustc_ast/src/util/parser.rs index 24b4bd8623f..35afd542372 100644 --- a/compiler/rustc_ast/src/util/parser.rs +++ b/compiler/rustc_ast/src/util/parser.rs @@ -53,8 +53,6 @@ pub enum AssocOp { DotDot, /// `..=` range DotDotEq, - /// `:` - Colon, } #[derive(PartialEq, Debug)] @@ -96,7 +94,6 @@ impl AssocOp { token::DotDotEq => Some(DotDotEq), // DotDotDot is no longer supported, but we need some way to display the error token::DotDotDot => Some(DotDotEq), - token::Colon => Some(Colon), // `<-` should probably be `< -` token::LArrow => Some(Less), _ if t.is_keyword(kw::As) => Some(As), @@ -133,7 +130,7 @@ impl AssocOp { pub fn precedence(&self) -> usize { use AssocOp::*; match *self { - As | Colon => 14, + As => 14, Multiply | Divide | Modulus => 13, Add | Subtract => 12, ShiftLeft | ShiftRight => 11, @@ -156,7 +153,7 @@ impl AssocOp { Assign | AssignOp(_) => Fixity::Right, As | Multiply | Divide | Modulus | Add | Subtract | ShiftLeft | ShiftRight | BitAnd | BitXor | BitOr | Less | Greater | LessEqual | GreaterEqual | Equal | NotEqual - | LAnd | LOr | Colon => Fixity::Left, + | LAnd | LOr => Fixity::Left, DotDot | DotDotEq => Fixity::None, } } @@ -166,8 +163,9 @@ impl AssocOp { match *self { Less | Greater | LessEqual | GreaterEqual | Equal | NotEqual => true, Assign | AssignOp(_) | As | Multiply | Divide | Modulus | Add | Subtract - | ShiftLeft | ShiftRight | BitAnd | BitXor | BitOr | LAnd | LOr | DotDot | DotDotEq - | Colon => false, + | ShiftLeft | ShiftRight | BitAnd | BitXor | BitOr | LAnd | LOr | DotDot | DotDotEq => { + false + } } } @@ -177,7 +175,7 @@ impl AssocOp { Assign | AssignOp(_) => true, Less | Greater | LessEqual | GreaterEqual | Equal | NotEqual | As | Multiply | Divide | Modulus | Add | Subtract | ShiftLeft | ShiftRight | BitAnd | BitXor - | BitOr | LAnd | LOr | DotDot | DotDotEq | Colon => false, + | BitOr | LAnd | LOr | DotDot | DotDotEq => false, } } @@ -202,7 +200,7 @@ impl AssocOp { BitOr => Some(BinOpKind::BitOr), LAnd => Some(BinOpKind::And), LOr => Some(BinOpKind::Or), - Assign | AssignOp(_) | As | DotDot | DotDotEq | Colon => None, + Assign | AssignOp(_) | As | DotDot | DotDotEq => None, } } @@ -223,10 +221,9 @@ impl AssocOp { Greater | // `{ 42 } > 3` GreaterEqual | // `{ 42 } >= 3` AssignOp(_) | // `{ 42 } +=` - As | // `{ 42 } as usize` // Equal | // `{ 42 } == { 42 }` Accepting these here would regress incorrect - // NotEqual | // `{ 42 } != { 42 }` struct literals parser recovery. - Colon, // `{ 42 }: usize` + // NotEqual | // `{ 42 } != { 42 } struct literals parser recovery. + As // `{ 42 } as usize` ) } } @@ -254,7 +251,6 @@ pub enum ExprPrecedence { Binary(BinOpKind), Cast, - Type, Assign, AssignOp, @@ -313,7 +309,6 @@ impl ExprPrecedence { // Binop-like expr kinds, handled by `AssocOp`. ExprPrecedence::Binary(op) => AssocOp::from_ast_binop(op).precedence() as i8, ExprPrecedence::Cast => AssocOp::As.precedence() as i8, - ExprPrecedence::Type => AssocOp::Colon.precedence() as i8, ExprPrecedence::Assign | ExprPrecedence::AssignOp => AssocOp::Assign.precedence() as i8, @@ -388,7 +383,7 @@ pub fn contains_exterior_struct_lit(value: &ast::Expr) -> bool { // X { y: 1 } + X { y: 2 } contains_exterior_struct_lit(lhs) || contains_exterior_struct_lit(rhs) } - ast::ExprKind::Await(x) + ast::ExprKind::Await(x, _) | ast::ExprKind::Unary(_, x) | ast::ExprKind::Cast(x, _) | ast::ExprKind::Type(x, _) |