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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\LazyPromise; |
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use Amp\Coroutine; |
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use Amp\Promise; |
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final class Processor |
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{ |
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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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* @var int |
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*/ |
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private $tasks = 0; |
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/** |
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* @param string $interrupt |
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* @param callable $interrupter |
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*/ |
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public function interrupt(string $interrupt, callable $interrupter): void |
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{ |
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$this->interruptions[$interrupt] = $interrupter; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function execute(callable $callable, ...$arguments): Task |
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{ |
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$token = new Token(); |
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return new Task(++$this->tasks, new LazyPromise(function () use ($callable, $arguments, $token) { |
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return $this->adapt($callable(...$arguments), $token); |
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}), $token); |
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} |
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/** |
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* @param mixed $value |
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* @param Token $token |
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* |
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* @return mixed |
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*/ |
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private function adapt($value, Token $token) |
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{ |
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return $value instanceof \Generator ? new Coroutine($this->recoil($value, $token)) : $value; |
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} |
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/** |
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* @param \Generator $generator |
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* @param Token $token |
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* |
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* @return mixed |
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*/ |
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private function recoil(\Generator $generator, Token $token) |
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{ |
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while ($generator->valid()) { |
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$token->guard(); |
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try { |
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$value = $this->intercept($generator->key(), $generator->current()); |
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$generator->send(yield $this->adapt($value, $token)); |
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} catch (\Exception $error) { |
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/** @scrutinizer ignore-call */ |
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1 |
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$generator->throw($error); |
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} |
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} |
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return $this->adapt($generator->getReturn(), $token); |
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} |
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/** |
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* @param int|string $key |
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* @param mixed $value |
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* |
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* @return mixed |
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*/ |
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private function intercept($key, $value) |
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{ |
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if (!\is_string($key) && \is_object($value)) { |
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$key = \get_class($value); |
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} |
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if (!isset($this->interruptions[$key])) { |
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return $value; |
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} |
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$interceptor = $this->interruptions[$key]; |
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$value = \is_array($value) ? $value : [$value]; |
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return $interceptor(...$value); |
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} |
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} |
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phpinnacle /
ensign
