trait X<'a> | |
where | |
for<'b> <Self as X<'b>>::U: Clone, | |
{ | |
type U: ?Sized; | |
} | |
fn f<'a, T: X<'a> + ?Sized>(x: &<T as X<'a>>::U) { | |
//~^ ERROR the trait bound `for<'b> <T as X<'b>>::U: Clone` is not satisfied | |
<<T as X<'_>>::U>::clone(x); | |
} | |
pub fn main() { | |
f::<dyn X<'_, U = str>>("abc"); | |
} |