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Support ?Trait bounds in supertraits and dyn Trait under a feature gate

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This commit is contained in:
Bryanskiy 2024-02-23 16:39:57 +03:00
parent 28e684b470
commit 2a73553513
34 changed files with 305 additions and 85 deletions
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6
compiler/rustc_hir/src/hir.rs
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@ -2832,7 +2832,11 @@ pub enum TyKind<'hir> {
OpaqueDef(ItemId, &'hir [GenericArg<'hir>], bool),
/// A trait object type `Bound1 + Bound2 + Bound3`
/// where `Bound` is a trait or a lifetime.
TraitObject(&'hir [PolyTraitRef<'hir>], &'hir Lifetime, TraitObjectSyntax),
TraitObject(
&'hir [(PolyTraitRef<'hir>, TraitBoundModifier)],
&'hir Lifetime,
TraitObjectSyntax,
),
/// Unused for now.
Typeof(&'hir AnonConst),
/// `TyKind::Infer` means the type should be inferred instead of it having been

4
compiler/rustc_hir/src/intravisit.rs
View file

@ -902,7 +902,9 @@ pub fn walk_ty<'v, V: Visitor<'v>>(visitor: &mut V, typ: &'v Ty<'v>) -> V::Resul
try_visit!(visitor.visit_array_length(length));
}
TyKind::TraitObject(bounds, ref lifetime, _syntax) => {
walk_list!(visitor, visit_poly_trait_ref, bounds);
for (bound, _modifier) in bounds {
try_visit!(visitor.visit_poly_trait_ref(bound));
}
try_visit!(visitor.visit_lifetime(lifetime));
}
TyKind::Typeof(ref expression) => try_visit!(visitor.visit_anon_const(expression)),