erasing_op

Source Code

What it does

Checks for operations that result in the value being erased (e.g., multiplication by 0 or 0 being divided by anything).

Example

fn main() {
    let x = 1;
    let _y = 0 * x;
    let _z = 0 / x;
    let _c = x & 0;
}

Could be simplified by replacing the entire expression with 0:

fn main() {
    let x = 1;
    let _y = 0;
    let _z = 0;
    let _c = 0;
}