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#![feature(unsized_tuple_coercion, unsized_fn_params)]
struct A<X: ?Sized>(X);
fn udrop<T: ?Sized>(_x: T) {}
fn foo() -> Box<[u8]> {
Box::new(*b"foo")
}
fn tfoo() -> Box<(i32, [u8])> {
Box::new((42, *b"foo"))
}
fn afoo() -> Box<A<[u8]>> {
Box::new(A(*b"foo"))
}
impl std::ops::Add<i32> for A<[u8]> {
type Output = ();
fn add(self, _rhs: i32) -> Self::Output {}
}
fn main() {
udrop::<[u8]>(foo()[..]);
//~^ERROR cannot move out of type `[u8]`, a non-copy slice
}
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