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change impl_trait_ref query to return EarlyBinder; remove bound_impl_trait_ref query; add EarlyBinder to impl_trait_ref in metadata

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This commit is contained in:
Kyle Matsuda
2023-01-10 14:57:22 -07:00
parent be130b57d4
commit f29a334c90
59 changed files with 108 additions and 127 deletions
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2
compiler/rustc_trait_selection/src/solve/trait_goals.rs
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@@ -73,7 +73,7 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> {
) {
let tcx = acx.cx.tcx;
let impl_trait_ref = tcx.bound_impl_trait_ref(impl_def_id).unwrap();
let impl_trait_ref = tcx.impl_trait_ref(impl_def_id).unwrap();
let drcx = DeepRejectCtxt { treat_obligation_params: TreatParams::AsPlaceholder };
if iter::zip(goal.predicate.trait_ref.substs, impl_trait_ref.skip_binder().substs)
.any(|(goal, imp)| !drcx.generic_args_may_unify(goal, imp))