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Generalize some InternedInSet impls

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This commit is contained in:
Oli Scherer 2022-11-30 14:52:05 +00:00
parent 907ef227ef
commit 14a9cf2ba2
1 changed files with 6 additions and 36 deletions
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42
compiler/rustc_middle/src/ty/context.rs
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@ -2163,53 +2163,23 @@ impl<'tcx, T: 'tcx + ?Sized> IntoPointer for InternedInSet<'tcx, T> {
}
#[allow(rustc::usage_of_ty_tykind)]
impl<'tcx> Borrow<TyKind<'tcx>> for InternedInSet<'tcx, WithCachedTypeInfo<TyKind<'tcx>>> {
fn borrow<'a>(&'a self) -> &'a TyKind<'tcx> {
impl<'tcx, T> Borrow<T> for InternedInSet<'tcx, WithCachedTypeInfo<T>> {
fn borrow<'a>(&'a self) -> &'a T {
&self.0.internee
}
}
impl<'tcx> PartialEq for InternedInSet<'tcx, WithCachedTypeInfo<TyKind<'tcx>>> {
fn eq(&self, other: &InternedInSet<'tcx, WithCachedTypeInfo<TyKind<'tcx>>>) -> bool {
impl<'tcx, T: PartialEq> PartialEq for InternedInSet<'tcx, WithCachedTypeInfo<T>> {
fn eq(&self, other: &InternedInSet<'tcx, WithCachedTypeInfo<T>>) -> bool {
// The `Borrow` trait requires that `x.borrow() == y.borrow()` equals
// `x == y`.
self.0.internee == other.0.internee
}
}
impl<'tcx> Eq for InternedInSet<'tcx, WithCachedTypeInfo<TyKind<'tcx>>> {}
impl<'tcx, T: Eq> Eq for InternedInSet<'tcx, WithCachedTypeInfo<T>> {}
impl<'tcx> Hash for InternedInSet<'tcx, WithCachedTypeInfo<TyKind<'tcx>>> {
fn hash<H: Hasher>(&self, s: &mut H) {
// The `Borrow` trait requires that `x.borrow().hash(s) == x.hash(s)`.
self.0.internee.hash(s)
}
}
impl<'tcx> Borrow<Binder<'tcx, PredicateKind<'tcx>>>
for InternedInSet<'tcx, WithCachedTypeInfo<ty::Binder<'tcx, PredicateKind<'tcx>>>>
{
fn borrow<'a>(&'a self) -> &'a Binder<'tcx, PredicateKind<'tcx>> {
&self.0.internee
}
}
impl<'tcx> PartialEq
for InternedInSet<'tcx, WithCachedTypeInfo<ty::Binder<'tcx, PredicateKind<'tcx>>>>
{
fn eq(
&self,
other: &InternedInSet<'tcx, WithCachedTypeInfo<ty::Binder<'tcx, PredicateKind<'tcx>>>>,
) -> bool {
// The `Borrow` trait requires that `x.borrow() == y.borrow()` equals
// `x == y`.
self.0.internee == other.0.internee
}
}
impl<'tcx> Eq for InternedInSet<'tcx, WithCachedTypeInfo<ty::Binder<'tcx, PredicateKind<'tcx>>>> {}
impl<'tcx> Hash for InternedInSet<'tcx, WithCachedTypeInfo<ty::Binder<'tcx, PredicateKind<'tcx>>>> {
impl<'tcx, T: Hash> Hash for InternedInSet<'tcx, WithCachedTypeInfo<T>> {
fn hash<H: Hasher>(&self, s: &mut H) {
// The `Borrow` trait requires that `x.borrow().hash(s) == x.hash(s)`.
self.0.internee.hash(s)