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//@ check-pass
//@ known-bug: #49682
//@ edition:2021
// Should fail. Keeping references to thread local statics can result in a
// use-after-free.
#![feature(thread_local)]
use std::sync::atomic::{AtomicUsize, Ordering};
use std::thread;
#[allow(dead_code)]
#[thread_local]
static FOO: AtomicUsize = AtomicUsize::new(0);
#[allow(dead_code)]
async fn bar() {}
#[allow(dead_code)]
async fn foo() {
let r = &FOO;
bar().await;
r.load(Ordering::SeqCst);
}
fn main() {
// &FOO = 0x7fd1e9cbf6d0
_ = thread::spawn(|| {
let g = foo();
println!("&FOO = {:p}", &FOO);
g
})
.join()
.unwrap();
// &FOO = 0x7fd1e9cc0f50
println!("&FOO = {:p}", &FOO);
// &FOO = 0x7fd1e9cbf6d0
thread::spawn(move || {
println!("&FOO = {:p}", &FOO);
})
.join()
.unwrap();
}
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