bjoernager/rust
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Only record fallback_span when necessary.

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This commit is contained in:
Nicholas Nethercote 2022-04-20 14:04:22 +10:00
parent 5b653c1a43
commit 9e6879fdba
1 changed files with 1 additions and 1 deletions
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2
compiler/rustc_parse/src/parser/mod.rs
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@ -1000,7 +1000,6 @@ impl<'a> Parser<'a> {
/// Advance the parser by one token.
pub fn bump(&mut self) {
let fallback_span = self.token.span;
let (mut next, spacing) = self.token_cursor.inlined_next(self.desugar_doc_comments);
self.token_cursor.num_next_calls += 1;
// We've retrieved an token from the underlying
@ -1009,6 +1008,7 @@ impl<'a> Parser<'a> {
self.token_cursor.break_last_token = false;
if next.span.is_dummy() {
// Tweak the location for better diagnostics, but keep syntactic context intact.
let fallback_span = self.token.span;
next.span = fallback_span.with_ctxt(next.span.ctxt());
}
debug_assert!(!matches!(