mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-25 08:13:41 +00:00
18 lines
371 B
Rust
18 lines
371 B
Rust
// run-pass
|
|
struct Wrapper<'a, T: ?Sized>(&'a mut i32, #[allow(unused_tuple_struct_fields)] T);
|
|
|
|
impl<'a, T: ?Sized> Drop for Wrapper<'a, T> {
|
|
fn drop(&mut self) {
|
|
*self.0 = 432;
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let mut x = 0;
|
|
{
|
|
let wrapper = Box::new(Wrapper(&mut x, 123));
|
|
let _: Box<Wrapper<dyn Send>> = wrapper;
|
|
}
|
|
assert_eq!(432, x)
|
|
}
|