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Fix parsing of _ = x in closure body

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This commit is contained in:
Jonas Schievink
2022-12-12 12:57:29 +01:00
parent 21e61bee8b
commit ed48bd8b9d
4 changed files with 36 additions and 1 deletions
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2
crates/parser/src/grammar/expressions.rs
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@@ -288,7 +288,7 @@ fn expr_bp(
}
const LHS_FIRST: TokenSet =
atom::ATOM_EXPR_FIRST.union(TokenSet::new(&[T![&], T![*], T![!], T![.], T![-]]));
atom::ATOM_EXPR_FIRST.union(TokenSet::new(&[T![&], T![*], T![!], T![.], T![-], T![_]]));
fn lhs(p: &mut Parser<'_>, r: Restrictions) -> Option<(CompletedMarker, BlockLike)> {
let m;

2
crates/parser/src/grammar/expressions/atom.rs
View File

@@ -278,6 +278,8 @@ fn closure_expr(p: &mut Parser<'_>) -> CompletedMarker {
// fn main() { || -> i32 { 92 }(); }
block_expr(p);
} else if p.at_ts(EXPR_FIRST) {
// test closure_body_underscore_assignment
// fn main() { || _ = 0; }
expr(p);
} else {
p.error("expected expression");