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Eagerly dismiss binder

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This commit is contained in:
Oli Scherer 2024-02-10 22:06:58 +00:00
parent a9e0e968be
commit ab0e8b3145
1 changed files with 5 additions and 8 deletions
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13
compiler/rustc_middle/src/ty/mod.rs
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@ -1590,13 +1590,11 @@ pub fn impls_are_allowed_to_overlap(
def_id1: DefId,
def_id2: DefId,
) -> Option<ImplOverlapKind> {
let impl_trait_ref1 = self.impl_trait_ref(def_id1).unwrap();
let impl_trait_ref2 = self.impl_trait_ref(def_id2).unwrap();
let impl_trait_ref1 = self.impl_trait_ref(def_id1).unwrap().instantiate_identity();
let impl_trait_ref2 = self.impl_trait_ref(def_id2).unwrap().instantiate_identity();
// If either trait impl references an error, they're allowed to overlap,
// as one of them essentially doesn't exist.
if impl_trait_ref1.instantiate_identity().references_error()
|| impl_trait_ref2.instantiate_identity().references_error()
{
if impl_trait_ref1.references_error() || impl_trait_ref2.references_error() {
return Some(ImplOverlapKind::Permitted { marker: false });
}
@ -1615,9 +1613,8 @@ pub fn impls_are_allowed_to_overlap(
};
let is_marker_overlap = {
let is_marker_impl = |trait_ref: EarlyBinder<TraitRef<'_>>| -> bool {
self.trait_def(trait_ref.skip_binder().def_id).is_marker
};
let is_marker_impl =
|trait_ref: TraitRef<'_>| -> bool { self.trait_def(trait_ref.def_id).is_marker };
is_marker_impl(impl_trait_ref1) && is_marker_impl(impl_trait_ref2)
};