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std: unbox closures used in function arguments

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This commit is contained in:
Jorge Aparicio
2014-12-30 18:05:17 -05:00
parent a17c2b60e1
commit 371f04d433
4 changed files with 7 additions and 5 deletions
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4
src/libstd/sys/common/thread_info.rs
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@@ -26,13 +26,13 @@ struct ThreadInfo {
thread_local! { static THREAD_INFO: RefCell<Option<ThreadInfo>> = RefCell::new(None) }
impl ThreadInfo {
fn with<R>(f: |&mut ThreadInfo| -> R) -> R {
fn with<R, F>(f: F) -> R where F: FnOnce(&mut ThreadInfo) -> R {
if THREAD_INFO.destroyed() {
panic!("Use of std::thread::Thread::current() is not possible after \
the thread's local data has been destroyed");
}
THREAD_INFO.with(|c| {
THREAD_INFO.with(move |c| {
if c.borrow().is_none() {
*c.borrow_mut() = Some(ThreadInfo {
stack_bounds: (0, 0),