73 lines
1.2 KiB
Rust
73 lines
1.2 KiB
Rust
#![warn(clippy::zero_repeat_side_effects)]
|
|
#![allow(clippy::unnecessary_operation)]
|
|
#![allow(clippy::useless_vec)]
|
|
#![allow(clippy::needless_late_init)]
|
|
|
|
fn f() -> i32 {
|
|
println!("side effect");
|
|
10
|
|
}
|
|
|
|
fn main() {
|
|
const N: usize = 0;
|
|
const M: usize = 1;
|
|
|
|
// should trigger
|
|
|
|
// on arrays
|
|
let a = [f(); 0];
|
|
let mut b;
|
|
b = [f(); 0];
|
|
|
|
// on vecs
|
|
// vecs dont support inferring value of consts
|
|
let c = vec![f(); 0];
|
|
let d;
|
|
d = vec![f(); 0];
|
|
|
|
// for macros
|
|
let e = [println!("side effect"); 0];
|
|
|
|
// for nested calls
|
|
let g = [{ f() }; 0];
|
|
|
|
// as function param
|
|
drop(vec![f(); 0]);
|
|
|
|
// when singled out/not part of assignment/local
|
|
vec![f(); 0];
|
|
[f(); 0];
|
|
|
|
// should not trigger
|
|
let a = [f(); N];
|
|
b = [f(); N];
|
|
[f(); N];
|
|
|
|
// on arrays with > 0 repeat
|
|
let a = [f(); 1];
|
|
let a = [f(); M];
|
|
let mut b;
|
|
b = [f(); 1];
|
|
b = [f(); M];
|
|
|
|
// on vecs with > 0 repeat
|
|
let c = vec![f(); 1];
|
|
let d;
|
|
d = vec![f(); 1];
|
|
|
|
// as function param
|
|
drop(vec![f(); 1]);
|
|
}
|
|
|
|
macro_rules! LEN {
|
|
() => {
|
|
0
|
|
};
|
|
}
|
|
|
|
fn issue_13110() {
|
|
let _data = [f(); LEN!()];
|
|
const LENGTH: usize = LEN!();
|
|
let _data = [f(); LENGTH];
|
|
}
|