Clarify DerivedObligationCause may hold alias id

2023-02-16 21:55:53 +00:00
parent a1468ae00d
commit 55d449fe0a
8 changed files with 16 additions and 12 deletions
--- a/compiler/rustc_trait_selection/src/traits/select/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs
@@ -2657,7 +2657,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
            let cause = cause.clone().derived_cause(parent_trait_pred, |derived| {
                ImplDerivedObligation(Box::new(ImplDerivedObligationCause {
                    derived,
-                    impl_def_id: def_id,
+                    impl_or_alias_def_id: def_id,
                    impl_def_predicate_index: Some(index),
                    span,
                }))