rust/tests/pass/drop_on_array_elements.rs
2022-06-20 15:39:46 -07:00

25 lines
566 B
Rust

struct Bar(u16); // ZSTs are tested separately
static mut DROP_COUNT: usize = 0;
impl Drop for Bar {
fn drop(&mut self) {
assert_eq!(self.0 as usize, unsafe { DROP_COUNT }); // tests whether we are called at a valid address
unsafe {
DROP_COUNT += 1;
}
}
}
fn main() {
let b = [Bar(0), Bar(1), Bar(2), Bar(3)];
assert_eq!(unsafe { DROP_COUNT }, 0);
drop(b);
assert_eq!(unsafe { DROP_COUNT }, 4);
// check empty case
let b: [Bar; 0] = [];
drop(b);
assert_eq!(unsafe { DROP_COUNT }, 4);
}