3b7ba1d10a
- lint if the lock was in a nested pattern - lint if the lock is inside a `Result<Lock, _>`
46 lines
1.1 KiB
Rust
46 lines
1.1 KiB
Rust
#![warn(clippy::let_underscore_lock)]
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extern crate parking_lot;
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fn main() {
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use parking_lot::lock_api::RawMutex;
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use parking_lot::{Mutex, RwLock};
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let p_m: Mutex<()> = Mutex::const_new(RawMutex::INIT, ());
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let _ = p_m.lock();
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//~^ ERROR: non-binding `let` on a synchronization lock
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let p_m1 = Mutex::new(0);
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let _ = p_m1.lock();
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//~^ ERROR: non-binding `let` on a synchronization lock
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let p_rw = RwLock::new(0);
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let _ = p_rw.read();
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//~^ ERROR: non-binding `let` on a synchronization lock
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let _ = p_rw.write();
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//~^ ERROR: non-binding `let` on a synchronization lock
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// These shouldn't throw an error.
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let _ = p_m;
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let _ = p_m1;
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let _ = p_rw;
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}
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#[allow(let_underscore_lock)]
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fn uplifted() {
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// shouldn't lint std locks as they were uplifted as rustc's `let_underscore_lock`
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let m = std::sync::Mutex::new(());
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let rw = std::sync::RwLock::new(());
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let _ = m.lock();
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let _ = rw.read();
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let _ = rw.write();
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let _ = m.try_lock();
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let _ = rw.try_read();
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let _ = rw.try_write();
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let _ = m;
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let _ = rw;
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}
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