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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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final class SignalDispatcher implements Dispatcher |
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{ |
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/** |
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* @var Processor |
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*/ |
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private $processor; |
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/** |
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* @var ArgumentsResolver |
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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 $handlers = []; |
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/** |
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* @param Processor $processor |
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* @param ArgumentsResolver $resolver |
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*/ |
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public function __construct(Processor $processor, ArgumentsResolver $resolver) |
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{ |
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$this->processor = $processor; |
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$this->resolver = $resolver; |
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} |
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/** |
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* @param ArgumentsResolver $resolver |
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* |
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* @return self |
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*/ |
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public static function amp(ArgumentsResolver $resolver = null): self |
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{ |
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return new self(new Amp\AmpProcessor(), $resolver ?: new Resolver\EmptyResolver()); |
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} |
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/** |
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* @param string $signal |
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* @param callable $handler |
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* |
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* @return self |
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*/ |
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public function register(string $signal, callable $handler): self |
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{ |
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$this->handlers[$signal] = $handler; |
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$this->processor->interrupt($signal, function (...$arguments) use ($signal) { |
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return $this->dispatch($signal, ...$arguments); |
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}); |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function dispatch($signal, ...$arguments): Task |
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{ |
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if (\is_object($signal)) { |
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\array_unshift($arguments, $signal); |
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$signal = \get_class($signal); |
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} |
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$handler = $this->handlers[$signal] ?? $this->unknown($signal); |
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$arguments = (new Arguments($arguments))->inject($this->resolver->resolve($handler)); |
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return $this->processor->execute($handler, ...$arguments); |
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} |
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/** |
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* @param string $signal |
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* |
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* @return callable |
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*/ |
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private function unknown(string $signal): callable |
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{ |
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return function () use ($signal) { |
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throw new Exception\UnknownSignal($signal); |
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}; |
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} |
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} |
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phpinnacle /
ensign
