rust/tests/ui/nll/ty-outlives/projection-where-clause-trait.rs

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// Test that we are able to establish that `<T as
// MyTrait<'a>>::Output: 'a` outlives `'a` (because the trait says
// so).
//
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// check-pass
trait MyTrait<'a> {
type Output: 'a;
}
fn foo<'a, T>() -> &'a ()
where
T: MyTrait<'a>,
{
bar::<T::Output>()
}
fn bar<'a, T>() -> &'a ()
where
T: 'a,
{
&()
}
fn main() {}