Struct WeakHandle 

pub struct WeakHandle { /* private fields */ }

A weak reference to a Handle

This handle behaves similarly to Weak, and can be used to keep access to the handle without actually preventing it from being dropped.

Implementations

impl WeakHandle

pub fn upgrade(&self) -> Option<Handle>

Try to upgrade this weak handle to a Handle

Returns None if the associated backend was already dropped.

Trait Implementations

impl Clone for WeakHandle

fn clone(&self) -> WeakHandle

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WeakHandle

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

Formats the value using the given formatter.