diff options
3 files changed, 27 insertions, 5 deletions
diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/dyn_compatibility.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/dyn_compatibility.rs index 474025e07af..813353c12aa 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/dyn_compatibility.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/dyn_compatibility.rs @@ -37,9 +37,6 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { let mut user_written_bounds = Vec::new(); let mut potential_assoc_types = Vec::new(); for poly_trait_ref in hir_bounds.iter() { - if let hir::BoundPolarity::Maybe(_) = poly_trait_ref.modifiers.polarity { - continue; - } let result = self.lower_poly_trait_ref( poly_trait_ref, dummy_self, diff --git a/tests/ui/traits/default_auto_traits/maybe-bounds-in-dyn-traits.rs b/tests/ui/traits/default_auto_traits/maybe-bounds-in-dyn-traits.rs index 5069cd256b2..e7cca41a47e 100644 --- a/tests/ui/traits/default_auto_traits/maybe-bounds-in-dyn-traits.rs +++ b/tests/ui/traits/default_auto_traits/maybe-bounds-in-dyn-traits.rs @@ -64,4 +64,8 @@ fn main() { x.leak_foo(); //~^ ERROR the trait bound `dyn Trait: Leak` is not satisfied x.maybe_leak_foo(); + // Ensure that we validate the generic args of relaxed bounds in trait object types. + let _: dyn Trait + ?Leak<(), Undefined = ()>; + //~^ ERROR trait takes 0 generic arguments but 1 generic argument was supplied + //~| ERROR associated type `Undefined` not found for `Leak` } diff --git a/tests/ui/traits/default_auto_traits/maybe-bounds-in-dyn-traits.stderr b/tests/ui/traits/default_auto_traits/maybe-bounds-in-dyn-traits.stderr index 48745e40268..350233b7cbe 100644 --- a/tests/ui/traits/default_auto_traits/maybe-bounds-in-dyn-traits.stderr +++ b/tests/ui/traits/default_auto_traits/maybe-bounds-in-dyn-traits.stderr @@ -18,6 +18,27 @@ note: required by a bound in `Trait::leak_foo` LL | fn leak_foo(&self) {} | ^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Trait::leak_foo` -error: aborting due to 2 previous errors +error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied + --> $DIR/maybe-bounds-in-dyn-traits.rs:68:25 + | +LL | let _: dyn Trait + ?Leak<(), Undefined = ()>; + | ^^^^-------------------- help: remove the unnecessary generics + | | + | expected 0 generic arguments + | +note: trait defined here, with 0 generic parameters + --> $DIR/maybe-bounds-in-dyn-traits.rs:44:12 + | +LL | auto trait Leak {} + | ^^^^ + +error[E0220]: associated type `Undefined` not found for `Leak` + --> $DIR/maybe-bounds-in-dyn-traits.rs:68:34 + | +LL | let _: dyn Trait + ?Leak<(), Undefined = ()>; + | ^^^^^^^^^ associated type `Undefined` not found + +error: aborting due to 4 previous errors -For more information about this error, try `rustc --explain E0277`. +Some errors have detailed explanations: E0107, E0220, E0277. +For more information about an error, try `rustc --explain E0107`. |