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Avoid snapshotting the parser in parse_path_inner.

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This commit is contained in:
Nicholas Nethercote
2025-02-21 16:47:07 +11:00
parent 76b04437be
commit 0f490b040a
6 changed files with 24 additions and 24 deletions
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15
compiler/rustc_parse/src/parser/path.rs
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@@ -196,15 +196,12 @@ impl<'a> Parser<'a> {
maybe_whole!(self, NtPath, |path| reject_generics_if_mod_style(self, path.into_inner()));
if let Some(MetaVarKind::Ty) = self.token.is_metavar_seq() {
let mut snapshot = self.create_snapshot_for_diagnostic();
let ty = snapshot
.eat_metavar_seq(MetaVarKind::Ty, |this| this.parse_ty_no_question_mark_recover())
.expect("metavar seq ty");
if let ast::TyKind::Path(None, path) = ty.into_inner().kind {
self.restore_snapshot(snapshot);
return Ok(reject_generics_if_mod_style(self, path));
}
// If we have a `ty` metavar in the form of a path, reparse it directly as a path, instead
// of reparsing it as a `ty` and then extracting the path.
if let Some(path) = self.eat_metavar_seq(MetaVarKind::Ty { is_path: true }, |this| {
this.parse_path(PathStyle::Type)
}) {
return Ok(reject_generics_if_mod_style(self, path));
}
let lo = self.token.span;