Struct cell_rc::CellOptWeak

pub struct CellOptWeak<T: ?Sized> { /* fields omitted */ }

Wrapper around Option<Weak<T>>

Methods

impl<T: ?Sized> CellOptWeak<T>

fn new(weak: Option<Weak<T>>) -> Self

fn into_inner(self) -> Option<Weak<T>>

fn get(&self) -> Option<Weak<T>>

fn set(&self, rc: Option<Weak<T>>) -> Option<Weak<T>>

fn is_some(&self) -> bool

fn is_none(&self) -> bool

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.

fn upgrade_cell(&self) -> Option<CellOptRc<T>>

Trait Implementations

impl<T: Debug + ?Sized> Debug for CellOptWeak<T>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<T: Default + ?Sized> Default for CellOptWeak<T>

fn default() -> CellOptWeak<T>

Returns the "default value" for a type.

impl<T: ?Sized> From<Option<Weak<T>>> for CellOptWeak<T>

fn from(weak: Option<Weak<T>>) -> Self

Performs the conversion.

impl<T: ?Sized> Clone for CellOptWeak<T>

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.