rust/tests/ui/regions/regions-implied-bounds-projection-gap-3.rs
2024-02-16 20:02:50 +00:00

24 lines
485 B
Rust

// Along with the other tests in this series, illustrates the
// "projection gap": in this test, we know that `T::Foo: 'x`, and that
// is (naturally) enough to conclude that `T::Foo: 'x`.
//@ check-pass
#![allow(dead_code)]
#![allow(unused_variables)]
trait Trait1<'x> {
type Foo;
}
// calling this fn should trigger a check that the type argument
// supplied is well-formed.
fn wf<T>() { }
fn func<'x, T:Trait1<'x>>(t: &'x T::Foo)
{
wf::<&'x T::Foo>();
}
fn main() { }