mirror of https://github.com/rust-lang/rust.git
25 lines
494 B
Rust
25 lines
494 B
Rust
|
#![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
|
||
|
|
}
|