Unnamed repository; edit this file 'description' to name the repository.
18 files changed, 543 insertions, 218 deletions
diff --git a/Cargo.lock b/Cargo.lock index 64654c9961..35d603ee26 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1832,9 +1832,9 @@ checksum = "0685c84d5d54d1c26f7d3eb96cd41550adb97baed141a761cf335d3d33bcd0ae" [[package]] name = "ungrammar" -version = "1.15.0" +version = "1.16.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ed01567101450f7d600508e7680df6005ae4fe97119d79b0364cc5910ff39732" +checksum = "a62374cbbda72c1459ce5e7bfcdf1bd284c812a4faf2324aa083e5d9ea87880f" [[package]] name = "unicase" diff --git a/crates/hir_def/src/body/lower.rs b/crates/hir_def/src/body/lower.rs index 06ad7ce4cd..71f5e4a3c8 100644 --- a/crates/hir_def/src/body/lower.rs +++ b/crates/hir_def/src/body/lower.rs @@ -518,6 +518,7 @@ impl ExprCollector<'_> { self.alloc_expr(Expr::MacroStmts { tail }, syntax_ptr) } + ast::Expr::UnderscoreExpr(_) => return None, }) } diff --git a/crates/ide_db/src/helpers.rs b/crates/ide_db/src/helpers.rs index cbe4adf1b9..be0b26f1ca 100644 --- a/crates/ide_db/src/helpers.rs +++ b/crates/ide_db/src/helpers.rs @@ -186,6 +186,7 @@ pub fn for_each_tail_expr(expr: &ast::Expr, cb: &mut dyn FnMut(&ast::Expr)) { | ast::Expr::TupleExpr(_) | ast::Expr::WhileExpr(_) | ast::Expr::LetExpr(_) + | ast::Expr::UnderscoreExpr(_) | ast::Expr::YieldExpr(_) => cb(expr), } } diff --git a/crates/parser/src/grammar/expressions.rs b/crates/parser/src/grammar/expressions.rs index a40db15049..5d652fb8dc 100644 --- a/crates/parser/src/grammar/expressions.rs +++ b/crates/parser/src/grammar/expressions.rs @@ -593,7 +593,16 @@ pub(crate) fn record_expr_field_list(p: &mut Parser) { T![.] if p.at(T![..]) => { m.abandon(p); p.bump(T![..]); - expr(p); + + // test destructuring_assignment_struct_rest_pattern + // fn foo() { + // S { .. } = S {}; + // } + + // We permit `.. }` on the left-hand side of a destructuring assignment. + if !p.at(T!['}']) { + expr(p); + } } T!['{'] => { error_block(p, "expected a field"); diff --git a/crates/parser/src/grammar/expressions/atom.rs b/crates/parser/src/grammar/expressions/atom.rs index e2c1b1fec5..e5f8e8199e 100644 --- a/crates/parser/src/grammar/expressions/atom.rs +++ b/crates/parser/src/grammar/expressions/atom.rs @@ -81,6 +81,17 @@ pub(super) fn atom_expr(p: &mut Parser, r: Restrictions) -> Option<(CompletedMar T![if] => if_expr(p), T![let] => let_expr(p), + T![_] => { + // test destructuring_assignment_wildcard_pat + // fn foo() { + // _ = 1; + // Some(_) = None; + // } + let m = p.start(); + p.bump(T![_]); + m.complete(p, UNDERSCORE_EXPR) + } + T![loop] => loop_expr(p, None), T![box] => box_expr(p, None), T![for] => for_expr(p, None), diff --git a/crates/parser/src/syntax_kind/generated.rs b/crates/parser/src/syntax_kind/generated.rs index d04b5dbf00..4e8a0cfe80 100644 --- a/crates/parser/src/syntax_kind/generated.rs +++ b/crates/parser/src/syntax_kind/generated.rs @@ -188,6 +188,7 @@ pub enum SyntaxKind { RETURN_EXPR, YIELD_EXPR, LET_EXPR, + UNDERSCORE_EXPR, MATCH_EXPR, MATCH_ARM_LIST, MATCH_ARM, diff --git a/crates/parser/test_data/parser/err/0025_nope.rast b/crates/parser/test_data/parser/err/0025_nope.rast deleted file mode 100644 index b48b4aed8d..0000000000 --- a/crates/parser/test_data/parser/err/0025_nope.rast +++ /dev/null @@ -1,204 +0,0 @@ - [email protected] "fn" - [email protected] " " - [email protected] "main" - [email protected] "(" - [email protected] ")" - [email protected] " " - [email protected] "{" - [email protected] "\n " - [email protected] "enum" - [email protected] " " - [email protected] "Test" - [email protected] " " - [email protected] "{" - [email protected] "\n " - [email protected] "Var1" - [email protected] "," - [email protected] "\n " - [email protected] "Var2" - [email protected] "(" - [email protected] "String" - [email protected] ")" - [email protected] "," - [email protected] "\n " - [email protected] "Var3" - [email protected] " " - [email protected] "{" - [email protected] "\n " - [email protected] "abc" - [email protected] ":" - [email protected] " " - [email protected] "{" - [email protected] "}" - [email protected] "," - [email protected] " " - [email protected] "//~ ERROR: expected t ..." - [email protected] "\n " - [email protected] "}" - [email protected] "," - [email protected] "\n " - [email protected] "}" - [email protected] "\n\n " - [email protected] "// recover..." - [email protected] "\n " - [email protected] "let" - [email protected] " " - [email protected] "a" - [email protected] " " - [email protected] "=" - [email protected] " " - [email protected] "1" - [email protected] ";" - [email protected] "\n " - [email protected] "enum" - [email protected] " " - [email protected] "Test2" - [email protected] " " - [email protected] "{" - [email protected] "\n " - [email protected] "Fine" - [email protected] "," - [email protected] "\n " - [email protected] "}" - [email protected] "\n\n " - [email protected] "enum" - [email protected] " " - [email protected] "Test3" - [email protected] " " - [email protected] "{" - [email protected] "\n " - [email protected] "StillFine" - [email protected] " " - [email protected] "{" - [email protected] "\n " - [email protected] "def" - [email protected] ":" - [email protected] " " - [email protected] "i32" - [email protected] "," - [email protected] "\n " - [email protected] "}" - [email protected] "," - [email protected] "\n " - [email protected] "}" - [email protected] "\n\n " - [email protected] "{" - [email protected] "\n " - [email protected] "// fail again" - [email protected] "\n " - [email protected] "enum" - [email protected] " " - [email protected] "Test4" - [email protected] " " - [email protected] "{" - [email protected] "\n " - [email protected] "Nope" - [email protected] "(" - [email protected] "i32" - [email protected] " " - [email protected] "{" - [email protected] "}" - [email protected] ")" - [email protected] " " - [email protected] "//~ ERROR: found `{`" - [email protected] "\n ..." - [email protected] "//~^ ERROR: found `{`" - [email protected] "\n " - [email protected] "}" - [email protected] "\n " - [email protected] "}" - [email protected] "\n " - [email protected] "// still recover later" - [email protected] "\n " - [email protected] "let" - [email protected] " " - [email protected] "bad_syntax" - [email protected] " " - [email protected] "=" - [email protected] " " - [email protected] "_" - [email protected] ";" - [email protected] " " - [email protected] "//~ ERROR: expected e ..." - [email protected] "\n" - [email protected] "}" - [email protected] "\n" -error 95..95: expected type -error 95..95: expected COMMA -error 96..96: expected field -error 98..98: expected field declaration -error 371..371: expected COMMA -error 372..372: expected a type -error 372..372: expected R_PAREN -error 372..372: expected COMMA -error 372..372: expected enum variant -error 374..374: expected enum variant -error 508..508: expected expression diff --git a/crates/parser/test_data/parser/err/0025_nope.rs b/crates/parser/test_data/parser/err/0025_nope.rs index 28726ed513..c78abe80ab 100644 --- a/crates/parser/test_data/parser/err/0025_nope.rs +++ b/crates/parser/test_data/parser/err/0025_nope.rs @@ -27,5 +27,6 @@ fn main() { } } // still recover later - let bad_syntax = _; //~ ERROR: expected expression, found reserved identifier `_` + let; //~ ERROR: expected pattern + let _ = 0; } diff --git a/crates/parser/test_data/parser/err/0025_nope.txt b/crates/parser/test_data/parser/err/0025_nope.txt index aca57faf96..6b49724ec9 100644 --- a/crates/parser/test_data/parser/err/0025_nope.txt +++ b/crates/parser/test_data/parser/err/0025_nope.txt @@ -176,18 +176,22 @@ SOURCE_FILE WHITESPACE "\n " LET_STMT LET_KW "let" + ERROR + SEMICOLON ";" + WHITESPACE " " + COMMENT "//~ ERROR: expected pattern" + WHITESPACE "\n " + LET_STMT + LET_KW "let" WHITESPACE " " - IDENT_PAT - NAME - IDENT "bad_syntax" + WILDCARD_PAT + UNDERSCORE "_" WHITESPACE " " EQ "=" WHITESPACE " " - ERROR - UNDERSCORE "_" + LITERAL + INT_NUMBER "0" SEMICOLON ";" - WHITESPACE " " - COMMENT "//~ ERROR: expected expression, found reserved identifier `_`" WHITESPACE "\n" R_CURLY "}" WHITESPACE "\n" @@ -201,4 +205,5 @@ error 372: expected R_PAREN error 372: expected COMMA error 372: expected enum variant error 374: expected enum variant -error 508: expected expression +error 494: expected pattern +error 495: expected SEMICOLON diff --git a/crates/parser/test_data/parser/inline/ok/0197_destructuring_assignment_struct_rest_pattern.rs b/crates/parser/test_data/parser/inline/ok/0197_destructuring_assignment_struct_rest_pattern.rs new file mode 100644 index 0000000000..22a5b5f3e3 --- /dev/null +++ b/crates/parser/test_data/parser/inline/ok/0197_destructuring_assignment_struct_rest_pattern.rs @@ -0,0 +1,3 @@ +fn foo() { + S { .. } = S {}; +} diff --git a/crates/parser/test_data/parser/inline/ok/0197_destructuring_assignment_struct_rest_pattern.txt b/crates/parser/test_data/parser/inline/ok/0197_destructuring_assignment_struct_rest_pattern.txt new file mode 100644 index 0000000000..fb8aa5accb --- /dev/null +++ b/crates/parser/test_data/parser/inline/ok/0197_destructuring_assignment_struct_rest_pattern.txt @@ -0,0 +1,44 @@ +SOURCE_FILE + FN + FN_KW "fn" + WHITESPACE " " + NAME + IDENT "foo" + PARAM_LIST + L_PAREN "(" + R_PAREN ")" + WHITESPACE " " + BLOCK_EXPR + STMT_LIST + L_CURLY "{" + WHITESPACE "\n " + EXPR_STMT + BIN_EXPR + RECORD_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "S" + WHITESPACE " " + RECORD_EXPR_FIELD_LIST + L_CURLY "{" + WHITESPACE " " + DOT2 ".." + WHITESPACE " " + R_CURLY "}" + WHITESPACE " " + EQ "=" + WHITESPACE " " + RECORD_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "S" + WHITESPACE " " + RECORD_EXPR_FIELD_LIST + L_CURLY "{" + R_CURLY "}" + SEMICOLON ";" + WHITESPACE "\n" + R_CURLY "}" + WHITESPACE "\n" diff --git a/crates/parser/test_data/parser/inline/ok/0198_destructuring_assignment_wildcard_pat.rs b/crates/parser/test_data/parser/inline/ok/0198_destructuring_assignment_wildcard_pat.rs new file mode 100644 index 0000000000..91acfb3a0a --- /dev/null +++ b/crates/parser/test_data/parser/inline/ok/0198_destructuring_assignment_wildcard_pat.rs @@ -0,0 +1,4 @@ +fn foo() { + _ = 1; + Some(_) = None; +} diff --git a/crates/parser/test_data/parser/inline/ok/0198_destructuring_assignment_wildcard_pat.txt b/crates/parser/test_data/parser/inline/ok/0198_destructuring_assignment_wildcard_pat.txt new file mode 100644 index 0000000000..5f53d34510 --- /dev/null +++ b/crates/parser/test_data/parser/inline/ok/0198_destructuring_assignment_wildcard_pat.txt @@ -0,0 +1,50 @@ +SOURCE_FILE + FN + FN_KW "fn" + WHITESPACE " " + NAME + IDENT "foo" + PARAM_LIST + L_PAREN "(" + R_PAREN ")" + WHITESPACE " " + BLOCK_EXPR + STMT_LIST + L_CURLY "{" + WHITESPACE "\n " + EXPR_STMT + BIN_EXPR + UNDERSCORE_EXPR + UNDERSCORE "_" + WHITESPACE " " + EQ "=" + WHITESPACE " " + LITERAL + INT_NUMBER "1" + SEMICOLON ";" + WHITESPACE "\n " + EXPR_STMT + BIN_EXPR + CALL_EXPR + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "Some" + ARG_LIST + L_PAREN "(" + UNDERSCORE_EXPR + UNDERSCORE "_" + R_PAREN ")" + WHITESPACE " " + EQ "=" + WHITESPACE " " + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "None" + SEMICOLON ";" + WHITESPACE "\n" + R_CURLY "}" + WHITESPACE "\n" diff --git a/crates/parser/test_data/parser/ok/0072_destructuring_assignment.rs b/crates/parser/test_data/parser/ok/0072_destructuring_assignment.rs new file mode 100644 index 0000000000..9d3e86603f --- /dev/null +++ b/crates/parser/test_data/parser/ok/0072_destructuring_assignment.rs @@ -0,0 +1,14 @@ +fn foo() { + let (mut a, mut b) = (0, 1); + (b, a, ..) = (a, b); + (_) = ..; + struct S { a: i32 } + S { .. } = S { ..S::default() }; + Some(..) = Some(0). + Ok(_) = 0; + let (a, b); + [a, .., b] = [1, .., 2]; + (_, _) = (a, b); + (_) = (a, b); + _ = (a, b); +} diff --git a/crates/parser/test_data/parser/ok/0072_destructuring_assignment.txt b/crates/parser/test_data/parser/ok/0072_destructuring_assignment.txt new file mode 100644 index 0000000000..e8b836dfbd --- /dev/null +++ b/crates/parser/test_data/parser/ok/0072_destructuring_assignment.txt @@ -0,0 +1,352 @@ +SOURCE_FILE + FN + FN_KW "fn" + WHITESPACE " " + NAME + IDENT "foo" + PARAM_LIST + L_PAREN "(" + R_PAREN ")" + WHITESPACE " " + BLOCK_EXPR + STMT_LIST + L_CURLY "{" + WHITESPACE "\n " + LET_STMT + LET_KW "let" + WHITESPACE " " + TUPLE_PAT + L_PAREN "(" + IDENT_PAT + MUT_KW "mut" + WHITESPACE " " + NAME + IDENT "a" + COMMA "," + WHITESPACE " " + IDENT_PAT + MUT_KW "mut" + WHITESPACE " " + NAME + IDENT "b" + R_PAREN ")" + WHITESPACE " " + EQ "=" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + LITERAL + INT_NUMBER "0" + COMMA "," + WHITESPACE " " + LITERAL + INT_NUMBER "1" + R_PAREN ")" + SEMICOLON ";" + WHITESPACE "\n " + EXPR_STMT + BIN_EXPR + TUPLE_EXPR + L_PAREN "(" + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "b" + COMMA "," + WHITESPACE " " + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "a" + COMMA "," + WHITESPACE " " + RANGE_EXPR + DOT2 ".." + R_PAREN ")" + WHITESPACE " " + EQ "=" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "a" + COMMA "," + WHITESPACE " " + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "b" + R_PAREN ")" + SEMICOLON ";" + WHITESPACE "\n " + EXPR_STMT + BIN_EXPR + PAREN_EXPR + L_PAREN "(" + UNDERSCORE_EXPR + UNDERSCORE "_" + R_PAREN ")" + WHITESPACE " " + EQ "=" + WHITESPACE " " + RANGE_EXPR + DOT2 ".." + SEMICOLON ";" + WHITESPACE "\n " + STRUCT + STRUCT_KW "struct" + WHITESPACE " " + NAME + IDENT "S" + WHITESPACE " " + RECORD_FIELD_LIST + L_CURLY "{" + WHITESPACE " " + RECORD_FIELD + NAME + IDENT "a" + COLON ":" + WHITESPACE " " + PATH_TYPE + PATH + PATH_SEGMENT + NAME_REF + IDENT "i32" + WHITESPACE " " + R_CURLY "}" + WHITESPACE "\n " + EXPR_STMT + BIN_EXPR + RECORD_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "S" + WHITESPACE " " + RECORD_EXPR_FIELD_LIST + L_CURLY "{" + WHITESPACE " " + DOT2 ".." + WHITESPACE " " + R_CURLY "}" + WHITESPACE " " + EQ "=" + WHITESPACE " " + RECORD_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "S" + WHITESPACE " " + RECORD_EXPR_FIELD_LIST + L_CURLY "{" + WHITESPACE " " + DOT2 ".." + CALL_EXPR + PATH_EXPR + PATH + PATH + PATH_SEGMENT + NAME_REF + IDENT "S" + COLON2 "::" + PATH_SEGMENT + NAME_REF + IDENT "default" + ARG_LIST + L_PAREN "(" + R_PAREN ")" + WHITESPACE " " + R_CURLY "}" + SEMICOLON ";" + WHITESPACE "\n " + EXPR_STMT + BIN_EXPR + BIN_EXPR + CALL_EXPR + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "Some" + ARG_LIST + L_PAREN "(" + RANGE_EXPR + DOT2 ".." + R_PAREN ")" + WHITESPACE " " + EQ "=" + WHITESPACE " " + METHOD_CALL_EXPR + CALL_EXPR + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "Some" + ARG_LIST + L_PAREN "(" + LITERAL + INT_NUMBER "0" + R_PAREN ")" + DOT "." + WHITESPACE "\n " + NAME_REF + IDENT "Ok" + ARG_LIST + L_PAREN "(" + UNDERSCORE_EXPR + UNDERSCORE "_" + R_PAREN ")" + WHITESPACE " " + EQ "=" + WHITESPACE " " + LITERAL + INT_NUMBER "0" + SEMICOLON ";" + WHITESPACE "\n " + LET_STMT + LET_KW "let" + WHITESPACE " " + TUPLE_PAT + L_PAREN "(" + IDENT_PAT + NAME + IDENT "a" + COMMA "," + WHITESPACE " " + IDENT_PAT + NAME + IDENT "b" + R_PAREN ")" + SEMICOLON ";" + WHITESPACE "\n " + EXPR_STMT + BIN_EXPR + ARRAY_EXPR + L_BRACK "[" + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "a" + COMMA "," + WHITESPACE " " + RANGE_EXPR + DOT2 ".." + COMMA "," + WHITESPACE " " + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "b" + R_BRACK "]" + WHITESPACE " " + EQ "=" + WHITESPACE " " + ARRAY_EXPR + L_BRACK "[" + LITERAL + INT_NUMBER "1" + COMMA "," + WHITESPACE " " + RANGE_EXPR + DOT2 ".." + COMMA "," + WHITESPACE " " + LITERAL + INT_NUMBER "2" + R_BRACK "]" + SEMICOLON ";" + WHITESPACE "\n " + EXPR_STMT + BIN_EXPR + TUPLE_EXPR + L_PAREN "(" + UNDERSCORE_EXPR + UNDERSCORE "_" + COMMA "," + WHITESPACE " " + UNDERSCORE_EXPR + UNDERSCORE "_" + R_PAREN ")" + WHITESPACE " " + EQ "=" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "a" + COMMA "," + WHITESPACE " " + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "b" + R_PAREN ")" + SEMICOLON ";" + WHITESPACE "\n " + EXPR_STMT + BIN_EXPR + PAREN_EXPR + L_PAREN "(" + UNDERSCORE_EXPR + UNDERSCORE "_" + R_PAREN ")" + WHITESPACE " " + EQ "=" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "a" + COMMA "," + WHITESPACE " " + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "b" + R_PAREN ")" + SEMICOLON ";" + WHITESPACE "\n " + EXPR_STMT + BIN_EXPR + UNDERSCORE_EXPR + UNDERSCORE "_" + WHITESPACE " " + EQ "=" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "a" + COMMA "," + WHITESPACE " " + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "b" + R_PAREN ")" + SEMICOLON ";" + WHITESPACE "\n" + R_CURLY "}" + WHITESPACE "\n" diff --git a/crates/syntax/Cargo.toml b/crates/syntax/Cargo.toml index f59cd4f257..8baea77075 100644 --- a/crates/syntax/Cargo.toml +++ b/crates/syntax/Cargo.toml @@ -30,7 +30,7 @@ rayon = "1" expect-test = "1.2.0-pre.1" proc-macro2 = "1.0.8" quote = "1.0.2" -ungrammar = "=1.15.0" +ungrammar = "=1.16.0" test_utils = { path = "../test_utils" } sourcegen = { path = "../sourcegen" } diff --git a/crates/syntax/src/ast/generated/nodes.rs b/crates/syntax/src/ast/generated/nodes.rs index 5c1bd8084e..5a121d602a 100644 --- a/crates/syntax/src/ast/generated/nodes.rs +++ b/crates/syntax/src/ast/generated/nodes.rs @@ -1065,6 +1065,15 @@ impl LetExpr { } #[derive(Debug, Clone, PartialEq, Eq, Hash)] +pub struct UnderscoreExpr { + pub(crate) syntax: SyntaxNode, +} +impl ast::HasAttrs for UnderscoreExpr {} +impl UnderscoreExpr { + pub fn underscore_token(&self) -> Option<SyntaxToken> { support::token(&self.syntax, T![_]) } +} + +#[derive(Debug, Clone, PartialEq, Eq, Hash)] pub struct StmtList { pub(crate) syntax: SyntaxNode, } @@ -1524,6 +1533,7 @@ pub enum Expr { WhileExpr(WhileExpr), YieldExpr(YieldExpr), LetExpr(LetExpr), + UnderscoreExpr(UnderscoreExpr), } #[derive(Debug, Clone, PartialEq, Eq, Hash)] @@ -2675,6 +2685,17 @@ impl AstNode for LetExpr { } fn syntax(&self) -> &SyntaxNode { &self.syntax } } +impl AstNode for UnderscoreExpr { + fn can_cast(kind: SyntaxKind) -> bool { kind == UNDERSCORE_EXPR } + fn cast(syntax: SyntaxNode) -> Option<Self> { + if Self::can_cast(syntax.kind()) { + Some(Self { syntax }) + } else { + None + } + } + fn syntax(&self) -> &SyntaxNode { &self.syntax } +} impl AstNode for StmtList { fn can_cast(kind: SyntaxKind) -> bool { kind == STMT_LIST } fn cast(syntax: SyntaxNode) -> Option<Self> { @@ -3339,6 +3360,9 @@ impl From<YieldExpr> for Expr { impl From<LetExpr> for Expr { fn from(node: LetExpr) -> Expr { Expr::LetExpr(node) } } +impl From<UnderscoreExpr> for Expr { + fn from(node: UnderscoreExpr) -> Expr { Expr::UnderscoreExpr(node) } +} impl AstNode for Expr { fn can_cast(kind: SyntaxKind) -> bool { match kind { @@ -3347,7 +3371,7 @@ impl AstNode for Expr { | INDEX_EXPR | LITERAL | LOOP_EXPR | MACRO_CALL | MACRO_STMTS | MATCH_EXPR | METHOD_CALL_EXPR | PAREN_EXPR | PATH_EXPR | PREFIX_EXPR | RANGE_EXPR | RECORD_EXPR | REF_EXPR | RETURN_EXPR | TRY_EXPR | TUPLE_EXPR | WHILE_EXPR - | YIELD_EXPR | LET_EXPR => true, + | YIELD_EXPR | LET_EXPR | UNDERSCORE_EXPR => true, _ => false, } } @@ -3385,6 +3409,7 @@ impl AstNode for Expr { WHILE_EXPR => Expr::WhileExpr(WhileExpr { syntax }), YIELD_EXPR => Expr::YieldExpr(YieldExpr { syntax }), LET_EXPR => Expr::LetExpr(LetExpr { syntax }), + UNDERSCORE_EXPR => Expr::UnderscoreExpr(UnderscoreExpr { syntax }), _ => return None, }; Some(res) @@ -3423,6 +3448,7 @@ impl AstNode for Expr { Expr::WhileExpr(it) => &it.syntax, Expr::YieldExpr(it) => &it.syntax, Expr::LetExpr(it) => &it.syntax, + Expr::UnderscoreExpr(it) => &it.syntax, } } } @@ -3889,6 +3915,7 @@ impl AstNode for AnyHasAttrs { | WHILE_EXPR | YIELD_EXPR | LET_EXPR + | UNDERSCORE_EXPR | STMT_LIST | RECORD_EXPR_FIELD_LIST | RECORD_EXPR_FIELD @@ -4548,6 +4575,11 @@ impl std::fmt::Display for LetExpr { std::fmt::Display::fmt(self.syntax(), f) } } +impl std::fmt::Display for UnderscoreExpr { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + std::fmt::Display::fmt(self.syntax(), f) + } +} impl std::fmt::Display for StmtList { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { std::fmt::Display::fmt(self.syntax(), f) diff --git a/crates/syntax/src/tests/ast_src.rs b/crates/syntax/src/tests/ast_src.rs index aeff851ce4..3152137fb8 100644 --- a/crates/syntax/src/tests/ast_src.rs +++ b/crates/syntax/src/tests/ast_src.rs @@ -143,6 +143,7 @@ pub(crate) const KINDS_SRC: KindsSrc = KindsSrc { "RETURN_EXPR", "YIELD_EXPR", "LET_EXPR", + "UNDERSCORE_EXPR", "MATCH_EXPR", "MATCH_ARM_LIST", "MATCH_ARM", |