src/test/ui/threads-sendsync/tls-try-with.rs

   1 // run-pass
   2 #![allow(stable_features)]
   3
   4 // ignore-emscripten no threads support
   5
   6 #![feature(thread_local_try_with)]
   7
   8 use std::thread;
   9
  10 static mut DROP_RUN: bool = false;
  11
  12 struct Foo;
  13
  14 thread_local!(static FOO: Foo = Foo {});
  15
  16 impl Drop for Foo {
  17     fn drop(&mut self) {
  18         assert!(FOO.try_with(|_| panic!("`try_with` closure run")).is_err());
  19         unsafe { DROP_RUN = true; }
  20     }
  21 }
  22
  23 fn main() {
  24     thread::spawn(|| {
  25         assert_eq!(FOO.try_with(|_| {
  26             132
  27         }).expect("`try_with` failed"), 132);
  28     }).join().unwrap();
  29     assert!(unsafe { DROP_RUN });
  30 }