2 // [thir]compile-flags: -Z thir-unsafeck
4 #![feature(thread_local)]
5 #![feature(cfg_target_thread_local, thread_local_internals)]
7 use std::cell::RefCell;
9 type Foo = std::cell::RefCell<String>;
11 #[cfg(target_thread_local)]
13 static __KEY: std::thread::__FastLocalKeyInner<Foo> = std::thread::__FastLocalKeyInner::new();
15 #[cfg(not(target_thread_local))]
16 static __KEY: std::thread::__OsLocalKeyInner<Foo> = std::thread::__OsLocalKeyInner::new();
18 fn __getit(_: Option<&mut Option<RefCell<String>>>) -> std::option::Option<&'static Foo> {
19 __KEY.get(Default::default) //~ ERROR call to unsafe function is unsafe
22 static FOO: std::thread::LocalKey<Foo> = std::thread::LocalKey::new(__getit);
23 //~^ ERROR call to unsafe function is unsafe
26 FOO.with(|foo| println!("{}", foo.borrow()));
27 std::thread::spawn(|| {
28 FOO.with(|foo| *foo.borrow_mut() += "foo");
32 FOO.with(|foo| println!("{}", foo.borrow()));