2 #![allow(incomplete_features, unused_braces, unused_parens)]
3 #![feature(unsized_tuple_coercion, unsized_locals, unsized_fn_params)]
5 struct A<X: ?Sized>(#[allow(unused_tuple_struct_fields)] X);
7 fn udrop<T: ?Sized>(_x: T) {}
8 fn foo() -> Box<[u8]> {
11 fn tfoo() -> Box<(i32, [u8])> {
12 Box::new((42, *b"foo"))
14 fn afoo() -> Box<A<[u8]>> {
18 impl std::ops::Add<i32> for A<[u8]> {
20 fn add(self, _rhs: i32) -> Self::Output {}
27 udrop::<[u8]>(if true { *foo() } else { *foo() });
28 udrop::<[u8]>({ *foo() });
29 udrop::<[u8]>((*foo()));
30 udrop::<[u8]>((*tfoo()).1);