bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Fix a span error when parsing a wrong param of function.

Browse source 
fixes #128042
This commit is contained in:
surechen 2024-07-25 22:33:45 +08:00
parent 28e684b470
commit 4ac60601d3
3 changed files with 42 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

9
compiler/rustc_parse/src/parser/item.rs
View file

@ -2773,7 +2773,14 @@ impl<'a> Parser<'a> {
let snapshot = p.create_snapshot_for_diagnostic();
let param = p.parse_param_general(req_name, first_param).or_else(|e| {
let guar = e.emit();
let lo = p.prev_token.span;
// When parsing a param failed, we should check to make the span of the param
// not contain '(' before it.
// For example when parsing `*mut Self` in function `fn oof(*mut Self)`.
let lo = if let TokenKind::OpenDelim(Delimiter::Parenthesis) = p.prev_token.kind {
p.prev_token.span.shrink_to_hi()
} else {
p.prev_token.span
};
p.restore_snapshot(snapshot);
// Skip every token until next possible arg or end.
p.eat_to_tokens(&[&token::Comma, &token::CloseDelim(Delimiter::Parenthesis)]);