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const ONE: i64 = 1;
const NEG_ONE: i64 = -1;
const ZERO: i64 = 0;
struct A(String);
impl std::ops::Shl<i32> for A {
type Output = A;
fn shl(mut self, other: i32) -> Self {
self.0.push_str(&format!("{}", other));
self
}
}
struct Length(u8);
struct Meter;
impl core::ops::Mul<Meter> for u8 {
type Output = Length;
fn mul(self, _: Meter) -> Length {
Length(self)
}
}
#[allow(
clippy::eq_op,
clippy::no_effect,
clippy::unnecessary_operation,
clippy::op_ref,
clippy::double_parens
)]
#[warn(clippy::identity_op)]
#[rustfmt::skip]
fn main() {
let x = 0;
x + 0;
x + (1 - 1);
x + 1;
0 + x;
1 + x;
x - ZERO; //no error, as we skip lookups (for now)
x | (0);
((ZERO)) | x; //no error, as we skip lookups (for now)
x * 1;
1 * x;
x / ONE; //no error, as we skip lookups (for now)
x / 2; //no false positive
x & NEG_ONE; //no error, as we skip lookups (for now)
-1 & x;
let u: u8 = 0;
u & 255;
1 << 0; // no error, this case is allowed, see issue 3430
42 << 0;
1 >> 0;
42 >> 0;
&x >> 0;
x >> &0;
let mut a = A("".into());
let b = a << 0; // no error: non-integer
1 * Meter; // no error: non-integer
2 % 3;
-2 % 3;
2 % -3 + x;
-2 % -3 + x;
x + 1 % 3;
(x + 1) % 3; // no error
4 % 3; // no error
4 % -3; // no error
}
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