rust/tests/ui/threads-sendsync/tls-try-with.rs
2023-01-11 09:32:08 +00:00

31 lines
589 B
Rust

// run-pass
#![allow(stable_features)]
// ignore-emscripten no threads support
#![feature(thread_local_try_with)]
use std::thread;
static mut DROP_RUN: bool = false;
struct Foo;
thread_local!(static FOO: Foo = Foo {});
impl Drop for Foo {
fn drop(&mut self) {
assert!(FOO.try_with(|_| panic!("`try_with` closure run")).is_err());
unsafe { DROP_RUN = true; }
}
}
fn main() {
thread::spawn(|| {
assert_eq!(FOO.try_with(|_| {
132
}).expect("`try_with` failed"), 132);
}).join().unwrap();
assert!(unsafe { DROP_RUN });
}