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<?php |
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|
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namespace React\Promise; |
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|
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class Deferred implements PromisorInterface |
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{ |
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private $promise; |
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private $resolveCallback; |
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private $rejectCallback; |
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private $notifyCallback; |
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private $canceller; |
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|
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public function __construct(callable $canceller = null) |
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{ |
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$this->canceller = $canceller; |
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} |
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|
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public function promise() |
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{ |
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if (null === $this->promise) { |
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$this->promise = new Promise(function ($resolve, $reject, $notify) { |
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$this->resolveCallback = $resolve; |
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$this->rejectCallback = $reject; |
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$this->notifyCallback = $notify; |
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}, $this->canceller); |
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} |
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|
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return $this->promise; |
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} |
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|
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public function resolve($value = null) |
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{ |
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$this->promise(); |
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|
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call_user_func($this->resolveCallback, $value); |
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} |
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|
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public function reject($reason = null) |
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{ |
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$this->promise(); |
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|
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call_user_func($this->rejectCallback, $reason); |
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} |
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|
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public function notify($update = null) |
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{ |
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$this->promise(); |
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|
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call_user_func($this->notifyCallback, $update); |
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} |
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|
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/** |
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* @deprecated 2.2.0 |
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* @see Deferred::notify() |
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*/ |
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public function progress($update = null) |
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{ |
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$this->notify($update); |
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} |
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} |
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