/**
* @param PromiseInterface|ExtendedPromiseInterface|mixed $promiseOrValue
*
* @return FulfilledPromise|Promise
*/
function resolve($promiseOrValue = null)
{
if (false === $promiseOrValue instanceof PromiseInterface) {
return new FulfilledPromise($promiseOrValue);
}
if ($promiseOrValue instanceof ExtendedPromiseInterface) {
return $promiseOrValue;
}
return new Promise(function ($resolve, $reject, $notify) use($promiseOrValue) {
$promiseOrValue->then($resolve, $reject, $notify);
});
}
/**
* Promise handler
*
* @param array|PromiseInterface $promise
* @param Generator $gen
*/
private function give($promise, Generator $gen)
{
if ($promise instanceof PromiseInterface) {
$promise->then(function ($result) use($gen) {
if ($promise = $gen->send($result)) {
$this->give($promise, $gen);
}
});
} else {
all($promise)->then(function ($results) use($gen) {
if ($promise = $gen->send($results)) {
$this->give($promise, $gen);
}
});
}
$this->client->send();
}
/**
* Returns true if a promise is fulfilled or rejected.
*
* @param PromiseInterface $promise
*
* @return bool
*/
function is_settled(PromiseInterface $promise)
{
return $promise->getState() !== PromiseInterface::PENDING;
}
/**
* {@inheritdoc}
*/
public function state()
{
return $this->actual !== null ? $this->actual->state() : State::PENDING();
}
