| //@ check-pass |
| |
| // Regression test for <https://github.com/rust-lang/rust/issues/140645>. |
| // Test that we lower impossible-to-satisfy associated type bounds, which |
| // may for example constrain impl parameters. |
| |
| pub trait Other {} |
| |
| pub trait Trait { |
| type Assoc |
| where |
| Self: Sized; |
| } |
| |
| impl Other for dyn Trait {} |
| // `dyn Trait<Assoc = ()>` is a different "nominal type" than `dyn Trait`. |
| impl Other for dyn Trait<Assoc = ()> {} |
| //~^ WARN unnecessary associated type bound for dyn-incompatible associated type |
| |
| // I hope it's clear that `dyn Trait` (w/o `Assoc`) wouldn't match this impl. |
| impl<T> dyn Trait<Assoc = T> {} |
| //~^ WARN unnecessary associated type bound for dyn-incompatible associated type |
| |
| fn main() {} |
