mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-18 00:53:31 +00:00
45 lines
1.1 KiB
Rust
45 lines
1.1 KiB
Rust
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
const ONE: i64 = 1;
|
|
const NEG_ONE: i64 = -1;
|
|
const ZERO: i64 = 0;
|
|
|
|
#[allow(
|
|
clippy::eq_op,
|
|
clippy::no_effect,
|
|
clippy::unnecessary_operation,
|
|
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;
|
|
}
|