rust/tests/ui/match_expr_like_matches_macro.rs

49 lines
785 B
Rust

// run-rustfix
#![warn(clippy::match_like_matches_macro)]
#![allow(unreachable_patterns)]
fn main() {
let x = Some(5);
// Lint
let _y = match x {
Some(0) => true,
_ => false,
};
// Lint
let _w = match x {
Some(_) => true,
_ => false,
};
// Turn into is_none
let _z = match x {
Some(_) => false,
None => true,
};
// Lint
let _zz = match x {
Some(r) if r == 0 => false,
_ => true,
};
// Lint
let _zzz = if let Some(5) = x { true } else { false };
// No lint
let _a = match x {
Some(_) => false,
_ => false,
};
// No lint
let _ab = match x {
Some(0) => false,
_ => true,
None => false,
};
}