Type Definition cell_rc::CellOptWeak

type CellOptWeak<T> = CellOption<Weak<T>>;

Methods

impl<T: ?Sized> CellOptWeak<T>

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

Returns None if the wrapped Option<Weak<T>> is None, Some(None) if there aren't strong references left, or Some(Some(..)) otherwise.