diff options
| -rw-r--r-- | crates/parser/src/grammar/expressions/atom.rs | 8 | ||||
| -rw-r--r-- | crates/parser/test_data/parser/inline/ok/0205_const_closure.rast | 42 | ||||
| -rw-r--r-- | crates/parser/test_data/parser/inline/ok/0205_const_closure.rs | 1 | ||||
| -rw-r--r-- | crates/syntax/rust.ungram | 2 | ||||
| -rw-r--r-- | crates/syntax/src/ast/generated/nodes.rs | 1 |
5 files changed, 50 insertions, 4 deletions
diff --git a/crates/parser/src/grammar/expressions/atom.rs b/crates/parser/src/grammar/expressions/atom.rs index efa3997353b..a23f900b738 100644 --- a/crates/parser/src/grammar/expressions/atom.rs +++ b/crates/parser/src/grammar/expressions/atom.rs @@ -152,7 +152,7 @@ pub(super) fn atom_expr( m.complete(p, BLOCK_EXPR) } - T![static] | T![async] | T![move] | T![|] => closure_expr(p), + T![const] | T![static] | T![async] | T![move] | T![|] => closure_expr(p), T![for] if la == T![<] => closure_expr(p), T![for] => for_expr(p, None), @@ -255,7 +255,7 @@ fn array_expr(p: &mut Parser<'_>) -> CompletedMarker { // } fn closure_expr(p: &mut Parser<'_>) -> CompletedMarker { assert!(match p.current() { - T![static] | T![async] | T![move] | T![|] => true, + T![const] | T![static] | T![async] | T![move] | T![|] => true, T![for] => p.nth(1) == T![<], _ => false, }); @@ -265,7 +265,9 @@ fn closure_expr(p: &mut Parser<'_>) -> CompletedMarker { if p.at(T![for]) { types::for_binder(p); } - + // test const_closure + // fn main() { let cl = const || _ = 0; } + p.eat(T![const]); p.eat(T![static]); p.eat(T![async]); p.eat(T![move]); diff --git a/crates/parser/test_data/parser/inline/ok/0205_const_closure.rast b/crates/parser/test_data/parser/inline/ok/0205_const_closure.rast new file mode 100644 index 00000000000..06442a1d0f1 --- /dev/null +++ b/crates/parser/test_data/parser/inline/ok/0205_const_closure.rast @@ -0,0 +1,42 @@ +SOURCE_FILE + FN + FN_KW "fn" + WHITESPACE " " + NAME + IDENT "main" + PARAM_LIST + L_PAREN "(" + R_PAREN ")" + WHITESPACE " " + BLOCK_EXPR + STMT_LIST + L_CURLY "{" + WHITESPACE " " + LET_STMT + LET_KW "let" + WHITESPACE " " + IDENT_PAT + NAME + IDENT "cl" + WHITESPACE " " + EQ "=" + WHITESPACE " " + CLOSURE_EXPR + CONST_KW "const" + WHITESPACE " " + PARAM_LIST + PIPE "|" + PIPE "|" + WHITESPACE " " + BIN_EXPR + UNDERSCORE_EXPR + UNDERSCORE "_" + WHITESPACE " " + EQ "=" + WHITESPACE " " + LITERAL + INT_NUMBER "0" + SEMICOLON ";" + WHITESPACE " " + R_CURLY "}" + WHITESPACE "\n" diff --git a/crates/parser/test_data/parser/inline/ok/0205_const_closure.rs b/crates/parser/test_data/parser/inline/ok/0205_const_closure.rs new file mode 100644 index 00000000000..0c05cc70bd3 --- /dev/null +++ b/crates/parser/test_data/parser/inline/ok/0205_const_closure.rs @@ -0,0 +1 @@ +fn main() { let cl = const || _ = 0; } diff --git a/crates/syntax/rust.ungram b/crates/syntax/rust.ungram index 2c67586a390..36ad5fddfd0 100644 --- a/crates/syntax/rust.ungram +++ b/crates/syntax/rust.ungram @@ -452,7 +452,7 @@ FieldExpr = Attr* Expr '.' NameRef ClosureExpr = - Attr* ('for' GenericParamList)? 'static'? 'async'? 'move'? ParamList RetType? + Attr* ('for' GenericParamList)? 'const'? 'static'? 'async'? 'move'? ParamList RetType? body:Expr IfExpr = diff --git a/crates/syntax/src/ast/generated/nodes.rs b/crates/syntax/src/ast/generated/nodes.rs index a214a5e4462..642a3bfc35d 100644 --- a/crates/syntax/src/ast/generated/nodes.rs +++ b/crates/syntax/src/ast/generated/nodes.rs @@ -842,6 +842,7 @@ impl ast::HasAttrs for ClosureExpr {} impl ClosureExpr { pub fn for_token(&self) -> Option<SyntaxToken> { support::token(&self.syntax, T![for]) } pub fn generic_param_list(&self) -> Option<GenericParamList> { support::child(&self.syntax) } + pub fn const_token(&self) -> Option<SyntaxToken> { support::token(&self.syntax, T![const]) } pub fn static_token(&self) -> Option<SyntaxToken> { support::token(&self.syntax, T![static]) } pub fn async_token(&self) -> Option<SyntaxToken> { support::token(&self.syntax, T![async]) } pub fn move_token(&self) -> Option<SyntaxToken> { support::token(&self.syntax, T![move]) } |