pub struct WeakCell<T>(/* private fields */);
Expand description
Weak counterpart to SharedCell
.
Implementations§
Source§impl<T> WeakCell<T>
impl<T> WeakCell<T>
Sourcepub fn upgrade(&self) -> Option<SharedCell<T>>
pub fn upgrade(&self) -> Option<SharedCell<T>>
Attempts to upgrade the weak reference to a strong SharedCell
.
Sourcepub fn is_dropped(&self) -> bool
pub fn is_dropped(&self) -> bool
Returns true
if the pointed-to value has been dropped.
Trait Implementations§
Auto Trait Implementations§
impl<T> Freeze for WeakCell<T>
impl<T> !RefUnwindSafe for WeakCell<T>
impl<T> !Send for WeakCell<T>
impl<T> !Sync for WeakCell<T>
impl<T> Unpin for WeakCell<T>
impl<T> !UnwindSafe for WeakCell<T>
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
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more