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<?php |
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/** |
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* This file is part of PHPinnacle/Ensign. |
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* |
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* (c) PHPinnacle Team <[email protected]> |
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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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declare(strict_types = 1); |
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namespace PHPinnacle\Ensign; |
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use Amp; |
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use Amp\Promise; |
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use Amp\Success; |
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final class Processor |
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{ |
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/** |
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* @var Executor |
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*/ |
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private $executor; |
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/** |
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* @var callable |
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*/ |
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private $resolver; |
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/** |
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* @var callable[] |
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*/ |
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private $interruptions = []; |
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/** |
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* @param Executor $executor |
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*/ |
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public function __construct(Executor $executor = null) |
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{ |
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$this->executor = $executor ?: new Executor\SimpleExecutor; |
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$this->resolver = function (string $interrupt, array $arguments) { |
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if (!isset($this->interruptions[$interrupt])) { |
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throw new Exception\UnknownInterrupt($interrupt); |
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} |
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return $this->execute($this->interruptions[$interrupt], $arguments); |
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}; |
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} |
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/** |
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* @param string $interrupt |
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* @param callable $handler |
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* |
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* @return void |
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*/ |
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public function interrupt(string $interrupt, callable $handler): void |
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{ |
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$this->interruptions[$interrupt] = $handler; |
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} |
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/** |
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* @param callable $handler |
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* @param array $arguments |
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* |
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* @return Promise |
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*/ |
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public function execute(callable $handler, array $arguments): Promise |
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{ |
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return Amp\call(function () use ($handler, $arguments) { |
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$result = $this->executor->execute($handler, $arguments); |
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if ($result instanceof \Generator) { |
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return new Subroutine($result, $this->resolver); |
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} |
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return $result; |
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}); |
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} |
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} |
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