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<?php |
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declare(strict_types=1); |
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namespace Jarvis\Skill\Core; |
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use Jarvis\Jarvis; |
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use Jarvis\Skill\DependencyInjection\Reference; |
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/** |
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* @author Eric Chau <[email protected]> |
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*/ |
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class CallbackResolver |
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{ |
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/** |
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* @var Jarvis |
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*/ |
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private $app; |
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public function __construct(Jarvis $app) |
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{ |
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$this->app = $app; |
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} |
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/** |
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* Resolves and replaces Reference by the parameter/service from Jarvis's |
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* dependency injection container. |
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* |
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* @param mixed $callback |
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* @return mixed |
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*/ |
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public function resolveReference($callback) |
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{ |
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if ($callback instanceof Reference) { |
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$callback = $this->app[(string) $callback] ?? $callback; |
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} elseif (is_array($callback) && $callback[0] instanceof Reference) { |
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$callback[0] = $this->app[(string) $callback[0]] ?? $callback[0]; |
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} |
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return $callback; |
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} |
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/** |
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* Resolves and replaces placeholders references by the parameter from Jarvis's |
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* dependency injection container. |
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* |
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* @param mixed $callback |
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* @return \Closure |
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*/ |
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public function toClosure($callback): \Closure |
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{ |
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if ($callback instanceof \Closure) { |
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return $callback; |
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} |
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return \Closure::fromCallable($this->resolveReference($callback)); |
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} |
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/** |
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* Resolves and returns an array of arguments according to the given closure. |
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* This method can also smartly type hint and find the right object to match |
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* callback requested arguments. |
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* |
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* @param \Closure $callback |
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* @param array $rawArgs |
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* @return array |
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*/ |
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public function resolveArgumentsForClosure(\Closure $callback, array $rawArgs = []): array |
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{ |
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$result = []; |
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$refMethod = new \ReflectionMethod($callback, '__invoke'); |
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foreach ($refMethod->getParameters() as $refParam) { |
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if (null !== $refClass = $refParam->getClass()) { |
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if (isset($this->app[$refClass->name])) { |
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$result[$refParam->getPosition()] = $this->app[$refClass->name]; |
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continue; |
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} |
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} |
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if (in_array($refParam->name, array_keys($rawArgs))) { |
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$result[$refParam->getPosition()] = $rawArgs[$refParam->name]; |
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} |
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} |
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return $result; |
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} |
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/** |
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* Shortcut that calls successively ::toClosure(), ::resolveArgumentsForClosure(), |
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* call_user_func_array() and returns the result. |
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* |
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* @param mixed $callback |
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* @param array $rawArgs |
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* @return mixed |
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*/ |
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public function resolveAndCall($callback, array $rawArgs = []) |
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{ |
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$closure = $this->toClosure($callback); |
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return call_user_func_array( |
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$closure, |
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$this->resolveArgumentsForClosure($closure, $rawArgs) |
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); |
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} |
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} |
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eric-chau /
jarvis
