rust/tests/compile-fail/let_return.rs
2015-11-09 08:49:20 +05:30

41 lines
671 B
Rust

#![feature(plugin)]
#![plugin(clippy)]
#![allow(unused)]
#![deny(let_and_return)]
fn test() -> i32 {
let _y = 0; // no warning
let x = 5; //~NOTE
x //~ERROR returning the result of a let binding
}
fn test_inner() -> i32 {
if true {
let x = 5;
x //~ERROR returning the result of a let binding
} else {
0
}
}
fn test_nowarn_1() -> i32 {
let mut x = 5;
x += 1;
x
}
fn test_nowarn_2() -> i32 {
let x = 5;
x + 1
}
fn test_nowarn_3() -> (i32, i32) {
// this should technically warn, but we do not compare complex patterns
let (x, y) = (5, 9);
(x, y)
}
fn main() {
}