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<?php |
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/* |
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* This file is part of the Cubiche package. |
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* |
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* Copyright (c) Cubiche |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Cubiche\Core\Async\Promise; |
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/** |
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* Promise Deferred class. |
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* |
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* @author Karel Osorio Ramírez <[email protected]> |
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*/ |
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class PromiseDeferred extends AbstractPromise implements DeferredInterface |
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{ |
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use CancelDeferredTrait; |
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/** |
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* @var ResolverInterface[] |
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*/ |
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private $resolvers = array(); |
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/** |
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* @var PromiseInterface |
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*/ |
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private $actual = null; |
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/** |
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* {@inheritdoc} |
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*/ |
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View Code Duplication |
public function then(callable $onFulfilled = null, callable $onRejected = null, callable $onNotify = null) |
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{ |
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if ($this->state()->equals(State::PENDING())) { |
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$resolver = new ThenResolver($onFulfilled, $onRejected, $onNotify); |
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$this->resolvers[] = $resolver; |
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return $resolver->promise(); |
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} |
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return $this->actual->then($onFulfilled, $onRejected, $onNotify); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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View Code Duplication |
public function done(callable $onFulfilled = null, callable $onRejected = null, callable $onNotify = null) |
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{ |
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if ($this->state()->equals(State::PENDING())) { |
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$resolver = new DoneResolver($onFulfilled, $onRejected, $onNotify); |
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$this->resolvers[] = $resolver; |
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} else { |
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$this->actual->done($onFulfilled, $onRejected, $onNotify); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function resolve($value = null) |
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{ |
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$this->changeState($value, true); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function reject($reason = null) |
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{ |
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$this->changeState($reason, false); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function notify($state = null) |
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{ |
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if ($this->state()->equals(State::PENDING())) { |
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foreach ($this->resolvers as $resolver) { |
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$resolver->notify($state); |
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} |
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} else { |
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throw new \LogicException(\sprintf('A %s promise cannot be notified', $this->state())); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function state() |
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{ |
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return $this->actual !== null ? $this->actual->state() : State::PENDING(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function promise() |
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{ |
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return $this; |
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} |
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/** |
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* @param mixed $result |
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* @param bool $success |
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* |
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* @throws \LogicException |
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*/ |
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private function changeState($result, $success) |
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{ |
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if ($this->state()->equals(State::PENDING())) { |
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$this->actual = $success ? new FulfilledPromise($result) : new RejectedPromise($result); |
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while (!empty($this->resolvers)) { |
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/** @var \Cubiche\Core\Async\Promise\ResolverInterface $resolver */ |
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$resolver = array_shift($this->resolvers); |
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if ($success) { |
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$resolver->resolve($result); |
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} else { |
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$resolver->reject($result); |
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} |
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} |
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} else { |
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throw new \LogicException( |
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\sprintf('A %s promise cannot be %s', $this->state(), $success ? 'resolved' : 'rejected') |
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); |
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} |
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} |
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} |
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cubiche /
async
Loading history...
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.