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Add new ToPredicate impls and TraitRef methods to remove some ty::Binber::dummy calls

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This commit is contained in:
Maybe Waffle 2023-04-26 11:48:17 +00:00
parent 4f2532fb53
commit 1b8c7784e5
9 changed files with 46 additions and 32 deletions
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5
compiler/rustc_ty_utils/src/ty.rs
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@ -62,9 +62,8 @@ fn sized_constraint_for_ty<'tcx>(
// it on the impl.
let Some(sized_trait) = tcx.lang_items().sized_trait() else { return vec![ty] };
let sized_predicate = ty::Binder::dummy(ty::TraitRef::new(tcx, sized_trait, [ty]))
.without_const()
.to_predicate(tcx);
let sized_predicate =
ty::TraitRef::new(tcx, sized_trait, [ty]).without_const().to_predicate(tcx);
let predicates = tcx.predicates_of(adtdef.did()).predicates;
if predicates.iter().any(|(p, _)| *p == sized_predicate) { vec![] } else { vec![ty] }
}