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No need to expect RPITIT projections in opaque item bounds

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This commit is contained in:
Michael Goulet 2023-07-30 20:43:24 +00:00
parent 23776619a8
commit 44c8ab9f8b
4 changed files with 3 additions and 30 deletions
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16
compiler/rustc_hir_analysis/src/check/check.rs
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@ -576,7 +576,6 @@ fn find_and_apply_rpit_args<'tcx>(
struct Visitor<'tcx> {
tcx: TyCtxt<'tcx>,
opaque: DefId,
function: DefId,
seen: FxHashSet<DefId>,
}
impl<'tcx> ty::TypeVisitor<TyCtxt<'tcx>> for Visitor<'tcx> {
@ -601,19 +600,6 @@ fn find_and_apply_rpit_args<'tcx>(
}
}
}
ty::Alias(ty::Projection, alias) => {
if self.tcx.is_impl_trait_in_trait(alias.def_id)
&& self.tcx.impl_trait_in_trait_parent_fn(alias.def_id) == self.function
{
// If we're lowering to associated item, install the opaque type which is just
// the `type_of` of the trait's associated item. If we're using the old lowering
// strategy, then just reinterpret the associated type like an opaque :^)
self.tcx
.type_of(alias.def_id)
.instantiate(self.tcx, alias.args)
.visit_with(self)?;
}
}
ty::Alias(ty::Weak, alias) => {
self.tcx
.type_of(alias.def_id)
@ -627,7 +613,7 @@ fn find_and_apply_rpit_args<'tcx>(
}
}
if let ControlFlow::Break(args) =
ret.visit_with(&mut Visitor { tcx, function, opaque, seen: Default::default() })
ret.visit_with(&mut Visitor { tcx, opaque, seen: Default::default() })
{
trace!(?args);
trace!("expected: {hidden_ty:#?}");