[rustc.git] / src / test / ui / function-pointer / sized-ret-with-binder.rs

// check-pass

#![feature(unboxed_closures)]

fn is_fn<T: for<'a> Fn<(&'a (),)>>() {}
fn is_fn2<T: for<'a, 'b> Fn<(&'a &'b (),)>>() {}

struct Outlives<'a, 'b>(std::marker::PhantomData<&'a &'b ()>);

fn main() {
    is_fn::<for<'a> fn(&'a ()) -> &'a ()>();
    is_fn::<for<'a> fn(&'a ()) -> &'a dyn std::fmt::Debug>();
    is_fn2::<for<'a, 'b> fn(&'a &'b ()) -> Outlives<'a, 'b>>();
    is_fn2::<for<'a, 'b> fn(&'a &'b ()) -> (&'a (), &'a ())>();
}
Commit	Line	Data
2b03887a FG	1	// check-pass
	2
	3	#![feature(unboxed_closures)]
	4
	5	fn is_fn<T: for<'a> Fn<(&'a (),)>>() {}
	6	fn is_fn2<T: for<'a, 'b> Fn<(&'a &'b (),)>>() {}
	7
	8	struct Outlives<'a, 'b>(std::marker::PhantomData<&'a &'b ()>);
	9
	10	fn main() {
	11	is_fn::<for<'a> fn(&'a ()) -> &'a ()>();
	12	is_fn::<for<'a> fn(&'a ()) -> &'a dyn std::fmt::Debug>();
	13	is_fn2::<for<'a, 'b> fn(&'a &'b ()) -> Outlives<'a, 'b>>();
	14	is_fn2::<for<'a, 'b> fn(&'a &'b ()) -> (&'a (), &'a ())>();
	15	}