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Diffstat (limited to '')
-rw-r--r-- | src/tools/clippy/tests/ui/empty_loop.rs | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/empty_loop.rs b/src/tools/clippy/tests/ui/empty_loop.rs new file mode 100644 index 000000000..8fd7697eb --- /dev/null +++ b/src/tools/clippy/tests/ui/empty_loop.rs @@ -0,0 +1,51 @@ +// aux-build:macro_rules.rs + +#![warn(clippy::empty_loop)] + +#[macro_use] +extern crate macro_rules; + +fn should_trigger() { + loop {} + loop { + loop {} + } + + 'outer: loop { + 'inner: loop {} + } +} + +fn should_not_trigger() { + loop { + panic!("This is fine") + } + let ten_millis = std::time::Duration::from_millis(10); + loop { + std::thread::sleep(ten_millis) + } + + #[allow(clippy::never_loop)] + 'outer: loop { + 'inner: loop { + break 'inner; + } + break 'outer; + } + + // Make sure `allow` works for this lint + #[allow(clippy::empty_loop)] + loop {} + + // We don't lint loops inside macros + macro_rules! foo { + () => { + loop {} + }; + } + + // We don't lint external macros + foofoo!() +} + +fn main() {} |