rust/tests/ui/mut_mutex_lock.rs

29 lines
668 B
Rust

//@run-rustfix
#![allow(dead_code, unused_mut)]
#![warn(clippy::mut_mutex_lock)]
use std::sync::{Arc, Mutex};
fn mut_mutex_lock() {
let mut value_rc = Arc::new(Mutex::new(42_u8));
let value_mutex = Arc::get_mut(&mut value_rc).unwrap();
let mut value = value_mutex.lock().unwrap();
*value += 1;
}
fn no_owned_mutex_lock() {
let mut value_rc = Arc::new(Mutex::new(42_u8));
let mut value = value_rc.lock().unwrap();
*value += 1;
}
fn issue9415() {
let mut arc_mutex = Arc::new(Mutex::new(42_u8));
let arc_mutex: &mut Arc<Mutex<u8>> = &mut arc_mutex;
let mut guard = arc_mutex.lock().unwrap();
*guard += 1;
}
fn main() {}