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Fix ICE caused by missing span in a region error

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This commit is contained in:
Gurinder Singh 2024-09-09 12:27:36 +05:30
parent 59d4114b2d
commit 0f8efb3b5c
3 changed files with 70 additions and 3 deletions
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14
compiler/rustc_trait_selection/src/error_reporting/infer/region.rs
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@ -625,11 +625,19 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> {
if let ObligationCauseCode::WhereClause(_, span)
| ObligationCauseCode::WhereClauseInExpr(_, span, ..) =
&trace.cause.code().peel_derives()
&& !span.is_dummy()
{
let span = *span;
self.report_concrete_failure(generic_param_scope, placeholder_origin, sub, sup)
.with_span_note(span, "the lifetime requirement is introduced here")
let mut err = self.report_concrete_failure(
generic_param_scope,
placeholder_origin,
sub,
sup,
);
if !span.is_dummy() {
err =
err.with_span_note(span, "the lifetime requirement is introduced here");
}
err
} else {
unreachable!(
"control flow ensures we have a `BindingObligation` or `WhereClauseInExpr` here..."