27 lines
612 B
Rust
27 lines
612 B
Rust
use core::mem::ManuallyDrop;
|
|
|
|
#[test]
|
|
fn smoke() {
|
|
#[derive(Clone)]
|
|
struct TypeWithDrop;
|
|
impl Drop for TypeWithDrop {
|
|
fn drop(&mut self) {
|
|
unreachable!("Should not get dropped");
|
|
}
|
|
}
|
|
|
|
let x = ManuallyDrop::new(TypeWithDrop);
|
|
drop(x);
|
|
|
|
// also test unsizing
|
|
let x: Box<ManuallyDrop<[TypeWithDrop]>> =
|
|
Box::new(ManuallyDrop::new([TypeWithDrop, TypeWithDrop]));
|
|
drop(x);
|
|
|
|
// test clone and clone_from implementations
|
|
let mut x = ManuallyDrop::new(TypeWithDrop);
|
|
let y = x.clone();
|
|
x.clone_from(&y);
|
|
drop(x);
|
|
drop(y);
|
|
}
|