bjoernager/rust
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replace self.clone() with self.create_snapshot_for_diagnostic()

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This commit is contained in:
Takayuki Maeda 2022-03-10 22:11:00 +09:00
parent 2db8236857
commit 9a6532276e
4 changed files with 36 additions and 36 deletions
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4
compiler/rustc_parse/src/parser/path.rs
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@ -645,7 +645,7 @@ impl<'a> Parser<'a> {
} else {
// Fall back by trying to parse a const-expr expression. If we successfully do so,
// then we should report an error that it needs to be wrapped in braces.
let snapshot = self.clone();
let snapshot = self.create_snapshot_for_diagnostic();
match self.parse_expr_res(Restrictions::CONST_EXPR, None) {
Ok(expr) => {
return Ok(Some(self.dummy_const_arg_needs_braces(
@ -654,7 +654,7 @@ impl<'a> Parser<'a> {
)));
}
Err(err) => {
*self = snapshot;
self.restore_snapshot(snapshot);
err.cancel();
return Ok(None);
}