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<?php |
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|
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declare(strict_types=1); |
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|
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namespace Depicter\GuzzleHttp\Promise; |
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|
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/** |
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* A promise that has been fulfilled. |
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* |
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* Thenning off of this promise will invoke the onFulfilled callback |
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* immediately and ignore other callbacks. |
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* |
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* @final |
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*/ |
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class FulfilledPromise implements PromiseInterface |
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{ |
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private $value; |
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|
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/** |
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* @param mixed $value |
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*/ |
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public function __construct($value) |
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{ |
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if (is_object($value) && method_exists($value, 'then')) { |
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throw new \InvalidArgumentException( |
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'You cannot create a FulfilledPromise with a promise.' |
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); |
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} |
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|
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$this->value = $value; |
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} |
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|
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public function then( |
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callable $onFulfilled = null, |
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callable $onRejected = null |
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): PromiseInterface { |
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// Return itself if there is no onFulfilled function. |
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if (!$onFulfilled) { |
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return $this; |
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} |
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|
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$queue = Utils::queue(); |
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$p = new Promise([$queue, 'run']); |
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$value = $this->value; |
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$queue->add(static function () use ($p, $value, $onFulfilled): void { |
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if (Is::pending($p)) { |
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try { |
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$p->resolve($onFulfilled($value)); |
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} catch (\Throwable $e) { |
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$p->reject($e); |
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} |
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} |
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}); |
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|
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return $p; |
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} |
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|
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public function otherwise(callable $onRejected): PromiseInterface |
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{ |
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return $this->then(null, $onRejected); |
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} |
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|
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public function wait(bool $unwrap = true) |
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{ |
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return $unwrap ? $this->value : null; |
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} |
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|
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public function getState(): string |
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{ |
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return self::FULFILLED; |
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} |
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|
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public function resolve($value): void |
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{ |
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if ($value !== $this->value) { |
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throw new \LogicException('Cannot resolve a fulfilled promise'); |
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} |
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} |
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|
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public function reject($reason): void |
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{ |
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throw new \LogicException('Cannot reject a fulfilled promise'); |
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} |
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|
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public function cancel(): void |
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{ |
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// pass |
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} |
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} |
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|
