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Do not ICE on HIR based WF check when involving lifetimes

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Fix #87549.
This commit is contained in:
Esteban Küber 2021-08-06 02:36:54 -07:00 • committed by Esteban Kuber
parent d4ad1cfc63
commit f93cbedade
3 changed files with 49 additions and 3 deletions
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7
compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
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@ -245,9 +245,10 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
if let ObligationCauseCode::WellFormed(Some(wf_loc)) =
root_obligation.cause.code.peel_derives()
{
if let Some(cause) =
self.tcx.diagnostic_hir_wf_check((obligation.predicate, wf_loc.clone()))
{
if let Some(cause) = self.tcx.diagnostic_hir_wf_check((
tcx.erase_regions(obligation.predicate),
wf_loc.clone(),
)) {
obligation.cause = cause;
span = obligation.cause.span;
}