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replace this.clone() with this.create_snapshot_for_diagnostic()

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This commit is contained in:
Takayuki Maeda 2022-03-23 01:26:34 +09:00
parent 3ea44938e2
commit b86a1d1c07
1 changed files with 2 additions and 2 deletions
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4
compiler/rustc_parse/src/parser/generics.rs
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@ -118,7 +118,7 @@ impl<'a> Parser<'a> {
Some(this.parse_ty_param(attrs)?)
} else if this.token.can_begin_type() {
// Trying to write an associated type bound? (#26271)
let snapshot = this.clone();
let snapshot = this.create_snapshot_for_diagnostic();
match this.parse_ty_where_predicate() {
Ok(where_predicate) => {
this.struct_span_err(
@ -133,7 +133,7 @@ impl<'a> Parser<'a> {
Err(err) => {
err.cancel();
// FIXME - maybe we should overwrite 'self' outside of `collect_tokens`?
*this = snapshot;
this.restore_snapshot(snapshot);
return Ok((None, TrailingToken::None));
}
}