rust-clippy/tests/ui/missing_spin_loop.fixed

27 lines
908 B
Rust

#![warn(clippy::missing_spin_loop)]
#![allow(clippy::bool_comparison)]
#![allow(unused_braces)]
use core::sync::atomic::{AtomicBool, Ordering};
fn main() {
let b = AtomicBool::new(true);
// Those should lint
while b.load(Ordering::Acquire) { std::hint::spin_loop() }
while !b.load(Ordering::SeqCst) { std::hint::spin_loop() }
while b.load(Ordering::Acquire) == false { std::hint::spin_loop() }
while { true == b.load(Ordering::Acquire) } { std::hint::spin_loop() }
while b.compare_exchange(true, false, Ordering::Acquire, Ordering::Relaxed) != Ok(true) { std::hint::spin_loop() }
while Ok(false) != b.compare_exchange(false, true, Ordering::Acquire, Ordering::Relaxed) { std::hint::spin_loop() }
// This is OK, as the body is not empty
while b.load(Ordering::Acquire) {
std::hint::spin_loop()
}
// TODO: also match on loop+match or while let
}