Struct glib::subclass::ObjectImplWeakRef

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pub struct ObjectImplWeakRef<T: ObjectSubclass>(/* private fields */);
Expand description

Weak reference to an ObjectSubclass reference.

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impl<T: ObjectSubclass> ObjectImplWeakRef<T>

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

Upgrade to a strong reference, if possible.

This will return None if the underlying object was freed in the meantime.

Trait Implementations§

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impl<T: ObjectSubclass> Clone for ObjectImplWeakRef<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: ObjectSubclass> Debug for ObjectImplWeakRef<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: ObjectSubclass> Upgrade for ObjectImplWeakRef<T>

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type Strong = ObjectImplRef<T>

Strong reference type.
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fn upgrade(&self) -> Option<Self::Strong>

Try upgrading a weak reference to a strong reference.
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impl<T: ObjectSubclass + Send + Sync> Send for ObjectImplWeakRef<T>

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impl<T: ObjectSubclass + Send + Sync> Sync for ObjectImplWeakRef<T>

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where 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 T
where 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 T
where 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 T
where 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 T
where 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 T
where 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 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.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.