bjoernager/rust
bjoernager/rust
1
Fork 0
Code Issues Pull requests Activity

Handle a negated literal in eat_token_lit.

Browse source 
Fixes #139495.
This commit is contained in:
Nicholas Nethercote 2025-04-11 10:45:14 +10:00
parent d4f880f8ce
commit d25c8a8ade
3 changed files with 29 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

13
compiler/rustc_parse/src/parser/expr.rs
View file

@ -2166,10 +2166,15 @@ impl<'a> Parser<'a> {
let expr = self
.eat_metavar_seq(mv_kind, |this| this.parse_expr())
.expect("metavar seq expr");
let ast::ExprKind::Lit(token_lit) = expr.kind else {
panic!("didn't reparse an expr");
};
Some(token_lit)
if let ast::ExprKind::Lit(token_lit) = expr.kind {
Some(token_lit)
} else if let ast::ExprKind::Unary(UnOp::Neg, inner) = &expr.kind
&& let ast::Expr { kind: ast::ExprKind::Lit(_), .. } = **inner
{
None
} else {
panic!("unexpected reparsed expr: {:?}", expr.kind);
}
}
_ => None,
}