rust/tests/ui/traits/new-solver/member-constraints-in-root-universe.rs

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// compile-flags: -Ztrait-solver=next
// check-pass
trait Trait {
type Ty;
}
impl Trait for for<'a> fn(&'a u8, &'a u8) {
type Ty = ();
}
// argument is necessary to create universes before registering the hidden type.
fn test<'a>(_: <fn(&u8, &u8) as Trait>::Ty) -> impl Sized {
"hidden type is `&'?0 str` with '?0 member of ['static,]"
}
fn main() {}