rust/tests/ui/let_underscore_drop.rs
2022-04-14 21:33:32 -04:00

29 lines
514 B
Rust

#![warn(clippy::let_underscore_drop)]
#![allow(clippy::let_unit_value)]
struct Droppable;
impl Drop for Droppable {
fn drop(&mut self) {}
}
fn main() {
let unit = ();
let boxed = Box::new(());
let droppable = Droppable;
let optional = Some(Droppable);
let _ = ();
let _ = Box::new(());
let _ = Droppable;
let _ = Some(Droppable);
// no lint for reference
let _ = droppable_ref();
}
#[must_use]
fn droppable_ref() -> &'static mut Droppable {
unimplemented!()
}