| struct Wrapper<'a, T: ?Sized>(&'a mut i32, 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 _val: Box<Wrapper<Send>> = wrapper; | |
| } | |
| assert_eq!(432, x) | |
| } |