Trait glib::clone::Upgrade

pub trait Upgrade where
    Self: Sized, {
    type Strong;

    fn upgrade(&self) -> Option<Self::Strong>;
}

Trait for generalizing upgrading a weak reference to a strong reference.

Required Associated Types

type Strong

Strong reference type.

Required Methods

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

Try upgrading a weak reference to a strong reference.

Implementations on Foreign Types

impl<T> Upgrade for PhantomData<T>

type Strong = PhantomData<T>

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

impl<T> Upgrade for Weak<T>

type Strong = Arc<T>

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

impl<T> Upgrade for Weak<T>

type Strong = Rc<T>

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

Implementors

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

type Strong = ObjectImplRef<T>

impl<T: Downgrade + ObjectType> Upgrade for WeakRef<T>

type Strong = T