| //@ revisions: current next |
| //@ ignore-compare-mode-next-solver (explicit revisions) |
| //@[next] compile-flags: -Znext-solver |
| //@ check-pass |
| |
| // A regression test for an edge case of candidate selection |
| // in the old trait solver, see #132325 for more details. Unlike |
| // the third test, this one has 3 impl candidates. |
| |
| trait Trait<T> {} |
| impl Trait<u32> for () {} |
| impl Trait<u64> for () {} |
| impl Trait<u128> for () {} |
| |
| fn impls_trait<T: Trait<U>, U>(_: T) -> U { todo!() } |
| fn foo<T>() -> u32 |
| where |
| (): Trait<T>, |
| (): Trait<u32>, |
| { |
| impls_trait(()) |
| } |
| |
| fn main() {} |
