pub struct Slot<T>(/* private fields */);Expand description
The output of slot().
Implementations§
source§impl<T> Slot<T>
impl<T> Slot<T>
sourcepub const VACANT: Self = _
pub const VACANT: Self = _
Same as slot(). Or rather, slot() is the same as Slot::VACANT.
The issue with the clearly zero-cost Slot::VACANT expression is that
Rust may lint against &mut <constant>, such as with
let slot = &mut Slot::VACANT;, which it does not do for
let slot = &mut slot().
Auto Trait Implementations§
impl<T> Freeze for Slot<T>where
T: Freeze,
impl<T> RefUnwindSafe for Slot<T>where
T: RefUnwindSafe,
impl<T> Send for Slot<T>where
T: Send,
impl<T> Sync for Slot<T>where
T: Sync,
impl<T> Unpin for Slot<T>where
T: Unpin,
impl<T> UnwindSafe for Slot<T>where
T: UnwindSafe,
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