Struct glib::object::SendWeakRef

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pub struct SendWeakRef<T: ObjectType>(_, _);
Expand description

A weak reference to the object it was created for that can be sent to different threads even for object types that don’t implement Send.

Trying to upgrade the weak reference from another thread than the one where it was created on will panic but dropping or cloning can be done safely from any thread.

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Methods from Deref<Target = WeakRef<T>>§

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pub fn set(&self, obj: Option<&T>)

Set this weak reference to the given object.

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pub fn upgrade(&self) -> Option<T>

Try to upgrade this weak reference to a strong reference.

If the stored object was already destroyed or no object was set in this weak reference then None is returned.

Trait Implementations§

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impl<T: ObjectType> Clone for SendWeakRef<T>

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T: Debug + ObjectType> Debug for SendWeakRef<T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<T: ObjectType> Default for SendWeakRef<T>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<T: ObjectType> Deref for SendWeakRef<T>

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type Target = WeakRef<T>

The resulting type after dereferencing.
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fn deref(&self) -> &WeakRef<T>

Dereferences the value.
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impl<T: ObjectType> From<WeakRef<T>> for SendWeakRef<T>

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fn from(v: WeakRef<T>) -> SendWeakRef<T>

Converts to this type from the input type.
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impl<T: ObjectType> Send for SendWeakRef<T>

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impl<T: ObjectType> Sync for SendWeakRef<T>

Auto Trait Implementations§

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impl<T> RefUnwindSafe for SendWeakRef<T>where T: RefUnwindSafe,

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impl<T> Unpin for SendWeakRef<T>

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impl<T> UnwindSafe for SendWeakRef<T>where T: RefUnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.