bjoernager/rust
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change map_bound(|_| x to rebind(x

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This commit is contained in:
Deadbeef 2022-07-21 07:45:49 +00:00
parent 8464396a19
commit a0ebb2ed8b
3 changed files with 6 additions and 6 deletions
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2
compiler/rustc_middle/src/ty/mod.rs
View file

@ -580,7 +580,7 @@ impl<'tcx> Predicate<'tcx> {
if let PredicateKind::Trait(TraitPredicate { trait_ref, constness, polarity }) = self.kind().skip_binder()
&& constness != BoundConstness::NotConst
{
self = tcx.mk_predicate(self.kind().map_bound(|_| PredicateKind::Trait(TraitPredicate {
self = tcx.mk_predicate(self.kind().rebind(PredicateKind::Trait(TraitPredicate {
trait_ref,
constness: BoundConstness::NotConst,
polarity,

4
compiler/rustc_trait_selection/src/traits/relationships.rs
View file

@ -31,14 +31,14 @@ pub(crate) fn update<'tcx, T>(
obligation
.predicate
.kind()
.map_bound(|_| {
.rebind(
// (*) binder moved here
ty::PredicateKind::Trait(ty::TraitPredicate {
trait_ref,
constness: tpred.constness,
polarity: tpred.polarity,
})
})
)
.to_predicate(infcx.tcx),
);
// Don't report overflow errors. Otherwise equivalent to may_hold.

6
compiler/rustc_typeck/src/check/closure.rs
View file

@ -182,9 +182,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
ty::PredicateKind::Projection(proj_predicate) => self
.deduce_sig_from_projection(
Some(span.0),
pred.0.kind().rebind(
pred.map_bound(|_| proj_predicate).subst(self.tcx, substs),
),
pred.0
.kind()
.rebind(pred.rebind(proj_predicate).subst(self.tcx, substs)),
),
_ => None,
});