82 lines
1.9 KiB
Rust
82 lines
1.9 KiB
Rust
// run-rustfix
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// aux-build:proc_macros.rs
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#![warn(clippy::manual_rem_euclid)]
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#![allow(clippy::let_with_type_underscore)]
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extern crate proc_macros;
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use proc_macros::{external, inline_macros};
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#[inline_macros]
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fn main() {
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let value: i32 = 5;
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let _: i32 = value.rem_euclid(4);
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let _: i32 = value.rem_euclid(4);
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let _: i32 = value.rem_euclid(4);
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let _: i32 = value.rem_euclid(4);
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let _: i32 = 1 + value.rem_euclid(4);
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let _: i32 = (3 + value % 4) % 4;
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let _: i32 = (-4 + value % -4) % -4;
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let _: i32 = ((5 % 4) + 4) % 4;
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// Make sure the lint does not trigger if it would cause an error, like with an ambiguous
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// integer type
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let not_annotated = 24;
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let _ = ((not_annotated % 4) + 4) % 4;
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let inferred: _ = 24;
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let _ = ((inferred % 4) + 4) % 4;
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// For lint to apply the constant must always be on the RHS of the previous value for %
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let _: i32 = 4 % ((value % 4) + 4);
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let _: i32 = ((4 % value) + 4) % 4;
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// Lint in internal macros
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inline!(
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let value: i32 = 5;
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let _: i32 = value.rem_euclid(4);
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);
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// Do not lint in external macros
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external!(
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let value: i32 = 5;
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let _: i32 = ((value % 4) + 4) % 4;
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);
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}
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// Should lint for params too
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pub fn rem_euclid_4(num: i32) -> i32 {
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num.rem_euclid(4)
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}
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// Constant version came later, should still lint
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pub const fn const_rem_euclid_4(num: i32) -> i32 {
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num.rem_euclid(4)
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}
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#[clippy::msrv = "1.37"]
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pub fn msrv_1_37() {
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let x: i32 = 10;
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let _: i32 = ((x % 4) + 4) % 4;
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}
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#[clippy::msrv = "1.38"]
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pub fn msrv_1_38() {
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let x: i32 = 10;
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let _: i32 = x.rem_euclid(4);
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}
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// For const fns:
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#[clippy::msrv = "1.51"]
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pub const fn msrv_1_51() {
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let x: i32 = 10;
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let _: i32 = ((x % 4) + 4) % 4;
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}
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#[clippy::msrv = "1.52"]
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pub const fn msrv_1_52() {
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let x: i32 = 10;
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let _: i32 = x.rem_euclid(4);
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}
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