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Visit in embargo visitor if trait method has body

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This commit is contained in:
Michael Goulet 2024-10-02 23:00:08 -04:00
parent 7cd466a036
commit 6e8573c520
1 changed files with 38 additions and 10 deletions
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48
compiler/rustc_privacy/src/lib.rs
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@ -636,17 +636,45 @@ fn update_macro_reachable_def(
impl<'tcx> Visitor<'tcx> for EmbargoVisitor<'tcx> {
fn visit_item(&mut self, item: &'tcx hir::Item<'tcx>) {
if self.impl_trait_pass
&& let hir::ItemKind::OpaqueTy(..) = item.kind
&& let hir::ItemKind::OpaqueTy(opaque) = item.kind
{
// FIXME: This is some serious pessimization intended to workaround deficiencies
// in the reachability pass (`middle/reachable.rs`). Types are marked as link-time
// reachable if they are returned via `impl Trait`, even from private functions.
let pub_ev = EffectiveVisibility::from_vis(ty::Visibility::Public);
self.reach_through_impl_trait(item.owner_id.def_id, pub_ev)
.generics()
.predicates()
.ty();
return;
let should_visit = match opaque.origin {
hir::OpaqueTyOrigin::FnReturn {
parent,
in_trait_or_impl: Some(hir::RpitContext::Trait),
}
| hir::OpaqueTyOrigin::AsyncFn {
parent,
in_trait_or_impl: Some(hir::RpitContext::Trait),
} => match self.tcx.hir_node_by_def_id(parent).expect_trait_item().expect_fn().1 {
hir::TraitFn::Required(_) => false,
hir::TraitFn::Provided(..) => true,
},
// Always visit RPITs in functions that have definitions,
// and all TAITs.
hir::OpaqueTyOrigin::FnReturn {
in_trait_or_impl: None | Some(hir::RpitContext::TraitImpl),
..
}
| hir::OpaqueTyOrigin::AsyncFn {
in_trait_or_impl: None | Some(hir::RpitContext::TraitImpl),
..
}
| hir::OpaqueTyOrigin::TyAlias { .. } => true,
};
if should_visit {
// FIXME: This is some serious pessimization intended to workaround deficiencies
// in the reachability pass (`middle/reachable.rs`). Types are marked as link-time
// reachable if they are returned via `impl Trait`, even from private functions.
let pub_ev = EffectiveVisibility::from_vis(ty::Visibility::Public);
self.reach_through_impl_trait(item.owner_id.def_id, pub_ev)
.generics()
.predicates()
.ty();
return;
}
}
// Update levels of nested things and mark all items