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struct Length(u8);
struct Meter;
impl core::ops::Mul<Meter> for u8 {
type Output = Length;
fn mul(self, _: Meter) -> Length {
Length(self)
}
}
#[derive(Clone, Default, PartialEq, Eq, Hash)]
struct Vec1 {
x: i32,
}
impl core::ops::Mul<Vec1> for i32 {
type Output = Vec1;
fn mul(self, mut right: Vec1) -> Vec1 {
right.x *= self;
right
}
}
impl core::ops::Mul<i32> for Vec1 {
type Output = Vec1;
fn mul(mut self, right: i32) -> Vec1 {
self.x *= right;
self
}
}
#[allow(clippy::no_effect)]
#[warn(clippy::erasing_op)]
fn test(x: u8) {
x * 0;
//~^ ERROR: this operation will always return zero. This is likely not the intended ou
//~| NOTE: `-D clippy::erasing-op` implied by `-D warnings`
0 & x;
//~^ ERROR: this operation will always return zero. This is likely not the intended ou
0 / x;
//~^ ERROR: this operation will always return zero. This is likely not the intended ou
0 * Meter; // no error: Output type is different from the non-zero argument
0 * Vec1 { x: 5 };
//~^ ERROR: this operation will always return zero. This is likely not the intended ou
Vec1 { x: 5 } * 0;
//~^ ERROR: this operation will always return zero. This is likely not the intended ou
}
fn main() {
test(0)
}
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