pub struct OnceState { /* private fields */ }
Expand description
State yielded to Once::call_once_force()
’s closure parameter. The state
can be used to query the poison status of the Once
.
Trait Implementations§
Auto Trait Implementations§
impl !Freeze for OnceState
impl !RefUnwindSafe for OnceState
impl Send for OnceState
impl !Sync for OnceState
impl Unpin for OnceState
impl UnwindSafe for OnceState
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more