[rustc.git] / src / test / ui / associated-types / hr-associated-type-bound-param-4.rs

trait X<'a, T>
where
    for<'b> (T,): X<'b, T>,
    for<'b> <(T,) as X<'b, T>>::U: Clone,
{
    type U: ?Sized;
    fn f(x: &<(T,) as X<'_, T>>::U) {
        <<(T,) as X<'_, T>>::U>::clone(x);
    }
}

impl<S, T> X<'_, T> for (S,) {
    type U = str;
    //~^ ERROR the trait bound `for<'b> <(T,) as X<'b, T>>::U: Clone` is not satisfied
}

pub fn main() {
    <(i32,) as X<i32>>::f("abc");
}
Commit	Line	Data
f035d41b XL	1	trait X<'a, T>
	2	where
	3	for<'b> (T,): X<'b, T>,
	4	for<'b> <(T,) as X<'b, T>>::U: Clone,
	5	{
	6	type U: ?Sized;
	7	fn f(x: &<(T,) as X<'_, T>>::U) {
	8	<<(T,) as X<'_, T>>::U>::clone(x);
	9	}
	10	}
	11
	12	impl<S, T> X<'_, T> for (S,) {
	13	type U = str;
1b1a35ee	14	//~^ ERROR the trait bound `for<'b> <(T,) as X<'b, T>>::U: Clone` is not satisfied
f035d41b XL	15	}
	16
	17	pub fn main() {
	18	<(i32,) as X<i32>>::f("abc");
	19	}