Struct objc_id::WeakId
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pub struct WeakId<T> { /* fields omitted */ }
A pointer type for a weak reference to an Objective-C reference counted object.
Methods
impl<T> WeakId<T> where
T: Message,
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T: Message,
fn new(obj: &ShareId<T>) -> WeakId<T>
Construct a new WeakId
referencing the given ShareId
.
fn load(&self) -> Option<ShareId<T>>
Load a ShareId
from the WeakId
if the object still exists.
Returns None
if the object has been deallocated.
Trait Implementations
impl<T> Sync for WeakId<T> where
T: Sync,
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T: Sync,
impl<T> Send for WeakId<T> where
T: Sync,
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T: Sync,