rust/tests/ui/panics/panic-handler-chain.rs
2023-01-11 09:32:08 +00:00

31 lines
687 B
Rust

// run-pass
// needs-unwind
#![allow(stable_features)]
// ignore-emscripten no threads support
#![feature(std_panic)]
use std::sync::atomic::{AtomicUsize, Ordering};
use std::panic;
use std::thread;
static A: AtomicUsize = AtomicUsize::new(0);
static B: AtomicUsize = AtomicUsize::new(0);
fn main() {
panic::set_hook(Box::new(|_| { A.fetch_add(1, Ordering::SeqCst); }));
let hook = panic::take_hook();
panic::set_hook(Box::new(move |info| {
B.fetch_add(1, Ordering::SeqCst);
hook(info);
}));
let _ = thread::spawn(|| {
panic!();
}).join();
assert_eq!(1, A.load(Ordering::SeqCst));
assert_eq!(1, B.load(Ordering::SeqCst));
}