Struct arc_cell::WeakCell

pub struct WeakCell<T> { /* private fields */ }

A Cell for containing a weak reference

Implementations

impl<T> WeakCell<T>

pub fn new(value: Option<Weak<T>>) -> WeakCell<T>

Constructs the weak cell with the given value.

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

Get the Weak pointer as it is at this moment

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

Set a Weak pointer you currently have as the pointer in this cell

pub fn take(&self) -> Option<Weak<T>>

Resets the stored value to be empty

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

Try to upgrade the Weak pointer as it is now into a Strong pointer

pub fn store(&self, value: &Arc<T>)

Downgrade a Strong pointer and store it in the cell

Trait Implementations

impl<T> Clone for WeakCell<T>

fn clone(&self) -> WeakCell<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for WeakCell<T>

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T> Default for WeakCell<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T> Drop for WeakCell<T>

fn drop(&mut self)

Executes the destructor for this type.