Struct pinky_swear::PinkySwear

#[must_use = "PinkySwear should be used or you can miss errors"]pub struct PinkySwear<T, S = ()> { /* fields omitted */ }

A PinkySwear is a Promise that the other party is supposed to honour at some point.

Methods

impl<T: Send + 'static, S: 'static> PinkySwear<T, S>

pub fn new() -> (Self, Pinky<T, S>)

Create a new PinkySwear and its associated Pinky.

pub fn after<B: 'static>(promise: PinkySwear<S, B>) -> (Self, Pinky<T, S>) where
    S: Send, 

Wait for this promise only once the given one is honoured.

pub fn new_with_data(data: T) -> Self

Create a new PinkySwear and honour it at the same time.

pub fn try_wait(&self) -> Option<T>

Check whether the Promise has been honoured or not.

pub fn wait(&self) -> T

Wait until the Promise has been honoured.

pub fn subscribe(&self, task: Box<dyn NotifyReady + Send>)

Get notified once the Promise has been honoured.

pub fn has_subscriber(&self) -> bool

Will someone get notified once the Promise is honoured?

pub fn drop_subscribers(&self)

Drop all the pending subscribers

pub fn traverse<F: Send + 'static>(
    self,
    transform: Box<dyn Fn(T) -> F + Send>
) -> PinkySwear<F, T>

Apply a tranformation to the result of a PinkySwear.

Trait Implementations

impl<T, S> Debug for PinkySwear<T, S>

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

Formats the value using the given formatter.

impl<T: Send + 'static, S: 'static> Future for PinkySwear<T, S>

type Output = T

The type of value produced on completion.

fn poll(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output>

Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available.