rust/tests/ui/lifetimes/tail-expr-lock-poisoning.rs
2024-10-24 01:56:08 +08:00

30 lines
605 B
Rust

//@ revisions: edition2021 edition2024
//@ ignore-wasm no panic or subprocess support
//@ [edition2024] compile-flags: -Zunstable-options
//@ [edition2024] edition: 2024
//@ run-pass
//@ needs-unwind
use std::sync::Mutex;
struct PanicOnDrop;
impl Drop for PanicOnDrop {
fn drop(&mut self) {
panic!()
}
}
fn f(m: &Mutex<i32>) -> i32 {
let _x = PanicOnDrop;
*m.lock().unwrap()
}
fn main() {
let m = Mutex::new(0);
let _ = std::panic::catch_unwind(|| f(&m));
#[cfg(edition2024)]
assert!(m.lock().is_ok());
#[cfg(edition2021)]
assert!(m.lock().is_err());
}