rust-clippy/tests/ui/let_unit.rs
2017-08-01 17:54:21 +02:00

25 lines
446 B
Rust

#![feature(plugin)]
#![plugin(clippy)]
#![warn(let_unit_value)]
#![allow(unused_variables)]
macro_rules! let_and_return {
($n:expr) => {{
let ret = $n;
}}
}
fn main() {
let _x = println!("x");
let _y = 1; // this is fine
let _z = ((), 1); // this as well
if true {
let _a = ();
}
let_and_return!(()) // should be fine
}
#[derive(Copy, Clone)]
pub struct ContainsUnit(()); // should be fine