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| author | David Wood <david.wood2@arm.com> | 2025-04-09 16:49:28 +0000 |
|---|---|---|
| committer | David Wood <david.wood2@arm.com> | 2025-06-16 23:04:33 +0000 |
| commit | f0b84b8dcfc15c3936256ccb438b1d050620ff3c (patch) | |
| tree | c149ca8c4a6b95e7f69b56d558cd82512ca9409c | |
| parent | 884d0e031a046af894b43180032c1803bb6d0834 (diff) | |
| download | rust-f0b84b8dcfc15c3936256ccb438b1d050620ff3c.tar.gz rust-f0b84b8dcfc15c3936256ccb438b1d050620ff3c.zip | |
lint: don't consider sizedness in upcastable lint
Adding a sizedness supertrait shouldn't require multiple vtables so shouldn't be linted against.
| -rw-r--r-- | compiler/rustc_lint/src/multiple_supertrait_upcastable.rs | 3 | ||||
| -rw-r--r-- | library/core/src/ops/deref.rs | 1 |
2 files changed, 2 insertions, 2 deletions
diff --git a/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs b/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs index dea7c8ac708..3cc55eaa0f2 100644 --- a/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs +++ b/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs @@ -46,7 +46,8 @@ impl<'tcx> LateLintPass<'tcx> for MultipleSupertraitUpcastable { .tcx .explicit_super_predicates_of(def_id) .iter_identity_copied() - .filter_map(|(pred, _)| pred.as_trait_clause()); + .filter_map(|(pred, _)| pred.as_trait_clause()) + .filter(|pred| !cx.tcx.is_lang_item(pred.def_id(), hir::LangItem::MetaSized)); if direct_super_traits_iter.count() > 1 { cx.emit_span_lint( MULTIPLE_SUPERTRAIT_UPCASTABLE, diff --git a/library/core/src/ops/deref.rs b/library/core/src/ops/deref.rs index f62bf702469..9d9d18095bc 100644 --- a/library/core/src/ops/deref.rs +++ b/library/core/src/ops/deref.rs @@ -269,7 +269,6 @@ impl<T: ?Sized> const Deref for &mut T { #[stable(feature = "rust1", since = "1.0.0")] #[const_trait] #[rustc_const_unstable(feature = "const_deref", issue = "88955")] -#[allow(multiple_supertrait_upcastable)] pub trait DerefMut: ~const Deref + PointeeSized { /// Mutably dereferences the value. #[stable(feature = "rust1", since = "1.0.0")] |