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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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final class Each |
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{ |
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/** |
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* Given an iterator that yields promises or values, returns a promise that |
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* is fulfilled with a null value when the iterator has been consumed or |
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* the aggregate promise has been fulfilled or rejected. |
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* |
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* $onFulfilled is a function that accepts the fulfilled value, iterator |
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* index, and the aggregate promise. The callback can invoke any necessary |
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* side effects and choose to resolve or reject the aggregate if needed. |
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* |
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* $onRejected is a function that accepts the rejection reason, iterator |
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* index, and the aggregate promise. The callback can invoke any necessary |
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* side effects and choose to resolve or reject the aggregate if needed. |
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* |
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* @param mixed $iterable Iterator or array to iterate over. |
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*/ |
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public static function of( |
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$iterable, |
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callable $onFulfilled = null, |
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callable $onRejected = null |
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): PromiseInterface { |
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return (new EachPromise($iterable, [ |
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'fulfilled' => $onFulfilled, |
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'rejected' => $onRejected, |
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]))->promise(); |
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} |
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|
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/** |
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* Like of, but only allows a certain number of outstanding promises at any |
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* given time. |
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* |
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* $concurrency may be an integer or a function that accepts the number of |
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* pending promises and returns a numeric concurrency limit value to allow |
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* for dynamic a concurrency size. |
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* |
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* @param mixed $iterable |
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* @param int|callable $concurrency |
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*/ |
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public static function ofLimit( |
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$iterable, |
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$concurrency, |
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callable $onFulfilled = null, |
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callable $onRejected = null |
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): PromiseInterface { |
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return (new EachPromise($iterable, [ |
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'fulfilled' => $onFulfilled, |
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'rejected' => $onRejected, |
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'concurrency' => $concurrency, |
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]))->promise(); |
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} |
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|
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/** |
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* Like limit, but ensures that no promise in the given $iterable argument |
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* is rejected. If any promise is rejected, then the aggregate promise is |
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* rejected with the encountered rejection. |
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* |
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* @param mixed $iterable |
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* @param int|callable $concurrency |
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*/ |
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public static function ofLimitAll( |
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$iterable, |
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$concurrency, |
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callable $onFulfilled = null |
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): PromiseInterface { |
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return self::ofLimit( |
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$iterable, |
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$concurrency, |
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$onFulfilled, |
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function ($reason, $idx, PromiseInterface $aggregate): void { |
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$aggregate->reject($reason); |
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} |
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); |
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} |
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} |
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|
