Struct context_rs::ProviderWaker

pub struct ProviderWaker<'a, 'b> { /* private fields */ }

This is a Waker compatible type that can provide values down the async call stack implicitly.

Implementations

impl<'a, 'b> ProviderWaker<'a, 'b>

pub fn new(waker: &'a Waker, provider: &'b dyn Provider) -> Self

Create a new ProviderWaker made up of the Waker and Provider pair.

impl<'a, 'b> ProviderWaker<'a, 'b>

pub fn use_waker_with<R>(&self, f: impl for<'w> FnOnce(&'w Waker) -> R) -> R

Turns &self into a Waker and pass it into the provided closure

Calling wake() on this waker does wake_by_ref only. Calling clone() on this waker only clones the inner waker, not the provider.

pub fn from_waker_ref(waker: &Waker) -> Option<&Self>

Try downcast the Waker into a ProviderWaker

Trait Implementations

impl<'a, 'b> Clone for ProviderWaker<'a, 'b>

fn clone(&self) -> ProviderWaker<'a, 'b>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Provider for ProviderWaker<'_, '_>

fn provide<'a>(&'a self, demand: &mut Demand<'a>)

🔬This is a nightly-only experimental API. (provide_any)

Data providers should implement this method to provide all values they are able to provide by using demand.

impl<'a, 'b> Copy for ProviderWaker<'a, 'b>