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Try to recover from path sep error in parser

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This commit is contained in:
yukang 2025-02-11 15:26:21 +08:00
parent d8810e3e2d
commit 0aa2e6b606
10 changed files with 92 additions and 40 deletions
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15
compiler/rustc_parse/src/parser/path.rs
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@ -246,8 +246,19 @@ impl<'a> Parser<'a> {
segments.push(segment);
if self.is_import_coupler() || !self.eat_path_sep() {
if style == PathStyle::Expr
&& self.may_recover()
let ok_for_recovery = self.may_recover()
&& match style {
PathStyle::Expr => true,
PathStyle::Type if let Some((ident, _)) = self.prev_token.ident() => {
self.token == token::Colon
&& ident.as_str().chars().all(|c| c.is_lowercase())
&& self.token.span.lo() == self.prev_token.span.hi()
&& self
.look_ahead(1, |token| self.token.span.hi() == token.span.lo())
}
_ => false,
};
if ok_for_recovery
&& self.token == token::Colon
&& self.look_ahead(1, |token| token.is_ident() && !token.is_reserved_ident())
{