[][src]Struct objc_id::WeakId

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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pub fn new(obj: &ShareId<T>) -> WeakId<T>[src]

Construct a new WeakId referencing the given ShareId.

pub fn load(&self) -> Option<ShareId<T>>[src]

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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impl<T> Send for WeakId<T> where
    T: Sync
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Blanket Implementations

impl<T> From for T[src]

impl<T, U> Into for T where
    U: From<T>, 
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impl<T, U> TryFrom for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized
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impl<T> BorrowMut for T where
    T: ?Sized
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impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> Any for T where
    T: 'static + ?Sized
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