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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\Coroutine; |
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use Amp\Promise; |
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final class Subroutine implements Promise |
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{ |
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/** |
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* @var Executor |
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*/ |
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private $generator; |
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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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* @param \Generator $generator |
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* @param callable $resolver |
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*/ |
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public function __construct(\Generator $generator, callable $resolver) |
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{ |
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$this->generator = $generator; |
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$this->resolver = $resolver; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function onResolve(callable $handler) |
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{ |
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$coroutine = new Coroutine($this->recoil()); |
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$coroutine->onResolve($handler); |
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} |
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/** |
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* @return \Generator |
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*/ |
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private function recoil(): \Generator |
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{ |
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$step = 0; |
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while ($this->generator->valid()) { |
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try { |
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// yield new Promise |
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// yield [$promiseOne, $promiseTwo] |
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// yield new Signal |
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// yield new Signal => 'arg' |
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// yield new Signal => ['arg', 'two'] |
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// yield Signal::class => [new Signal, 'arg', 'two'] |
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// yield 'signal' |
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// yield 'signal' => 'arg' |
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// yield 'signal' => ['arg', 'two'] |
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$current = $this->generator->current(); |
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$key = $this->generator->key(); |
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if ($key === $step) { |
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$interrupt = $current; |
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$arguments = []; |
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} else { |
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$interrupt = $key; |
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$arguments = \is_array($current) ? $current : [$current]; |
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$step--; |
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} |
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if (\is_array($interrupt)) { |
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$interrupt = Promise\all($interrupt); |
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} |
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if (!$interrupt instanceof Promise) { |
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$interrupt = $this->intercept($interrupt, $arguments); |
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} |
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$this->generator->send(yield $interrupt); |
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} catch (\Throwable $error) { |
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$this->throw($error, $step); |
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} finally { |
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$step++; |
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} |
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}; |
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return $this->generator->getReturn(); |
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} |
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/** |
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* @param \Throwable $error |
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* @param int $step |
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* |
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* @return void |
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*/ |
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private function throw(\Throwable $error, int $step): void |
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{ |
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try { |
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$this->generator->throw($error); |
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} catch (\Throwable $error) { |
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throw new Exception\BadActionCall($step, $error); |
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} |
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} |
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/** |
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* @param mixed $interrupt |
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* @param array $arguments |
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* |
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* @return mixed |
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*/ |
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private function intercept($interrupt, array $arguments) |
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{ |
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if (\is_object($interrupt)) { |
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\array_unshift($arguments, $interrupt); |
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$interrupt = \get_class($interrupt); |
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} |
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return \call_user_func($this->resolver, $interrupt, $arguments); |
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} |
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} |
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phpinnacle /
ensign
Loading history...
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..