rust/library/core/tests/manually_drop.rs
2020-07-27 19:51:13 -05:00

20 lines
421 B
Rust

use core::mem::ManuallyDrop;
#[test]
fn smoke() {
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);
}