Trait enso_flexer::prelude::WeakRef

pub trait WeakRef: CloneRef {
    type StrongRef: StrongRef;
    fn upgrade(&self) -> Option<Self::StrongRef>;
}

Abstraction for a weak reference like Weak or newtypes over it.

Associated Types

type StrongRef: StrongRef

Upgraded reference type.

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Required methods

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

Attempts to upgrade the weak referenc to a strong one, delaying dropping of the inner value if successful.

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Implementors

impl<T> WeakRef for Weak<T> where
    T: ?Sized, 

type StrongRef = Rc<T>

pub fn upgrade(&self) -> Option<<Weak<T> as WeakRef>::StrongRef>

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