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<?php |
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/** |
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* This file is part of the Ray.Di package. |
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* |
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* @license http://opensource.org/licenses/MIT MIT |
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*/ |
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namespace Ray\Di; |
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use Doctrine\Common\Annotations\Reader; |
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use Ray\Aop\Annotation\AbstractAssisted; |
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use Ray\Aop\MethodInterceptor; |
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use Ray\Aop\MethodInvocation; |
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final class AssistedInterceptor implements MethodInterceptor |
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{ |
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/** |
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* @var InjectorInterface |
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*/ |
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private $injector; |
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/** |
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* @var Reader |
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*/ |
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private $reader; |
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public function __construct(InjectorInterface $injector, Reader $reader) |
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{ |
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$this->injector = $injector; |
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$this->reader = $reader; |
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} |
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/** |
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* Intercepts any method and injects instances of the missing arguments |
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* when they are type hinted |
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*/ |
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public function invoke(MethodInvocation $invocation) |
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{ |
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$method = $invocation->getMethod(); |
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$assisted = $this->reader->getMethodAnnotation($method, 'Ray\Di\Di\Assisted'); |
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/* @var \Ray\Di\Di\Assisted $assisted */ |
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$parameters = $method->getParameters(); |
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$arguments = $invocation->getArguments()->getArrayCopy(); |
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$cntArgs = count($arguments); |
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foreach ($parameters as $pos => $parameter) { |
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if ($pos < $cntArgs || ! $assisted || ! in_array($parameter->getName(), $assisted->values)) { |
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continue; |
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} |
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$hint = $parameter->getClass(); |
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$interface = $hint ? $hint->getName() : ''; |
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$name = $this->getName($method, $parameter); |
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$arguments[] = $this->injector->getInstance($interface, $name); |
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} |
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$invocation->getArguments()->exchangeArray($arguments); |
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return $invocation->proceed(); |
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} |
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private function getName(\ReflectionMethod $method, \ReflectionParameter $parameter) |
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{ |
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$named = $this->reader->getMethodAnnotation($method, 'Ray\Di\Di\Named'); |
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if (! $named) { |
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return Name::ANY; |
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} |
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parse_str($named->value, $names); |
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$paramName = $parameter->getName(); |
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if (isset($names[$paramName])) { |
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return $names[$paramName]; |
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} |
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return Name::ANY; |
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} |
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} |
koriym /
Ray.Di
