diff options
| -rw-r--r-- | compiler/rustc_parse/src/parser/diagnostics.rs | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/compiler/rustc_parse/src/parser/diagnostics.rs b/compiler/rustc_parse/src/parser/diagnostics.rs index 2abd485b1be..228eff1269f 100644 --- a/compiler/rustc_parse/src/parser/diagnostics.rs +++ b/compiler/rustc_parse/src/parser/diagnostics.rs @@ -756,16 +756,19 @@ impl<'a> Parser<'a> { // we expect to suggest `(foo::Bar { ... })` instead of `foo::(Bar { ... })` let sm = self.sess.source_map(); let before = maybe_struct_name.span.shrink_to_lo(); - let extend_before = sm.span_extend_prev_while(before, |t| { + if let Ok(extend_before) = sm.span_extend_prev_while(before, |t| { t.is_alphanumeric() || t == ':' || t == '_' - }); - Err(self.sess.create_err(StructLiteralNeedingParens { - span: maybe_struct_name.span.to(expr.span), - sugg: StructLiteralNeedingParensSugg { - before: extend_before.unwrap().shrink_to_lo(), - after: expr.span.shrink_to_hi(), - }, - })) + }) { + Err(self.sess.create_err(StructLiteralNeedingParens { + span: maybe_struct_name.span.to(expr.span), + sugg: StructLiteralNeedingParensSugg { + before: extend_before.shrink_to_lo(), + after: expr.span.shrink_to_hi(), + }, + })) + } else { + return None; + } } else { self.sess.emit_err(StructLiteralBodyWithoutPath { span: expr.span, |