mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-14 17:48:10 +00:00
56 lines
1.3 KiB
Rust
56 lines
1.3 KiB
Rust
// run-rustfix
|
|
// aux-build:macro_rules.rs
|
|
|
|
#![warn(clippy::manual_rem_euclid)]
|
|
|
|
#[macro_use]
|
|
extern crate macro_rules;
|
|
|
|
macro_rules! internal_rem_euclid {
|
|
() => {
|
|
let value: i32 = 5;
|
|
let _: i32 = ((value % 4) + 4) % 4;
|
|
};
|
|
}
|
|
|
|
fn main() {
|
|
let value: i32 = 5;
|
|
|
|
let _: i32 = ((value % 4) + 4) % 4;
|
|
let _: i32 = (4 + (value % 4)) % 4;
|
|
let _: i32 = (value % 4 + 4) % 4;
|
|
let _: i32 = (4 + value % 4) % 4;
|
|
let _: i32 = 1 + (4 + value % 4) % 4;
|
|
|
|
let _: i32 = (3 + value % 4) % 4;
|
|
let _: i32 = (-4 + value % -4) % -4;
|
|
let _: i32 = ((5 % 4) + 4) % 4;
|
|
|
|
// Make sure the lint does not trigger if it would cause an error, like with an ambiguous
|
|
// integer type
|
|
let not_annotated = 24;
|
|
let _ = ((not_annotated % 4) + 4) % 4;
|
|
let inferred: _ = 24;
|
|
let _ = ((inferred % 4) + 4) % 4;
|
|
|
|
// For lint to apply the constant must always be on the RHS of the previous value for %
|
|
let _: i32 = 4 % ((value % 4) + 4);
|
|
let _: i32 = ((4 % value) + 4) % 4;
|
|
|
|
// Lint in internal macros
|
|
internal_rem_euclid!();
|
|
|
|
// Do not lint in external macros
|
|
manual_rem_euclid!();
|
|
}
|
|
|
|
// Should lint for params too
|
|
pub fn rem_euclid_4(num: i32) -> i32 {
|
|
((num % 4) + 4) % 4
|
|
}
|
|
|
|
// Constant version came later, should still lint
|
|
pub const fn const_rem_euclid_4(num: i32) -> i32 {
|
|
((num % 4) + 4) % 4
|
|
}
|