rust/tests/ui/traits/winnowing/global-non-global-env-1.rs

22 lines
461 B
Rust

//@ 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.
trait Trait<T> {}
impl<T> Trait<T> for () {}
fn impls_trait<T: Trait<U>, U>(_: T) -> U { todo!() }
fn foo<T>() -> u32
where
(): Trait<u32>,
(): Trait<T>,
{
impls_trait(())
}
fn main() {}