pub struct Strong<T> { /* private fields */ }
Expand description
A strongly-held reference.
Similar to an alloc::sync::Arc
but holding a Strong
acts as a witness
to the live-ness of the underlying data. That is, holding a Strong
implies
that the underlying data has not yet been destroyed.
Note that Strong
’s implementation of Hash
and PartialEq
operate on
the pointer itself and not the underlying data.
Implementations§
Source§impl<T> Strong<T>
impl<T> Strong<T>
Sourcepub fn downgrade(_: &Self) -> Weak<T>
pub fn downgrade(_: &Self) -> Weak<T>
Returns a weak reference pointing to the same underlying data.
Sourcepub fn resource_token(&self) -> ResourceToken<'_>
pub fn resource_token(&self) -> ResourceToken<'_>
Returns a ResourceToken
that corresponds to this object.
Sourcepub fn marked_for_destruction(_: &Self) -> bool
pub fn marked_for_destruction(_: &Self) -> bool
Returns true if the inner value has since been marked for destruction.
Sourcepub fn weak_ptr_eq(_: &Self, Weak: &Weak<T>) -> bool
pub fn weak_ptr_eq(_: &Self, Weak: &Weak<T>) -> bool
Returns true if the two pointers point to the same allocation.
Sourcepub fn ptr_eq(_: &Self, _: &Self) -> bool
pub fn ptr_eq(_: &Self, _: &Self) -> bool
Returns true if the two pointers point to the same allocation.
Sourcepub fn debug_references(this: &Self) -> DebugReferences<T>
pub fn debug_references(this: &Self) -> DebugReferences<T>
Creates a DebugReferences
instance.
Trait Implementations§
impl<T> Eq for Strong<T>
Auto Trait Implementations§
impl<T> Freeze for Strong<T>
impl<T> RefUnwindSafe for Strong<T>where
T: RefUnwindSafe,
impl<T> Send for Strong<T>
impl<T> Sync for Strong<T>
impl<T> Unpin for Strong<T>
impl<T> UnwindSafe for Strong<T>where
T: RefUnwindSafe,
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<L, T> UnlockedAccess<L> for Twhere
L: UnlockedAccessMarkerFor<T>,
impl<L, T> UnlockedAccess<L> for Twhere
L: UnlockedAccessMarkerFor<T>,
Source§type Data = <L as UnlockedAccessMarkerFor<T>>::Data
type Data = <L as UnlockedAccessMarkerFor<T>>::Data
The type of state being accessed.
Source§type Guard<'l> = &'l <L as UnlockedAccessMarkerFor<T>>::Data
where
T: 'l
type Guard<'l> = &'l <L as UnlockedAccessMarkerFor<T>>::Data where T: 'l
A guard providing read access to the data.
Source§fn access(&self) -> <T as UnlockedAccess<L>>::Guard<'_>
fn access(&self) -> <T as UnlockedAccess<L>>::Guard<'_>
How to access the state.