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<?php |
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/* |
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* Go! AOP framework |
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* |
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* @copyright Copyright 2012, Lisachenko Alexander <[email protected]> |
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* |
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* This source file is subject to the license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace Go\Aop\Support; |
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use InvalidArgumentException; |
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use ReflectionClass; |
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use Go\Aop\Advice; |
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use Go\Aop\PointFilter; |
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use Go\Aop\IntroductionInfo; |
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use Go\Aop\IntroductionAdvisor; |
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/** |
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* Introduction advisor delegating to the given object. |
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*/ |
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class DeclareParentsAdvisor implements IntroductionAdvisor |
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{ |
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/** |
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* @var null|IntroductionInfo |
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*/ |
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private $advice = null; |
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/** |
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* Type pattern the introduction is restricted to |
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* |
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* @var PointFilter |
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*/ |
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private $classFilter; |
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/** |
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* Create a DefaultIntroductionAdvisor for the given advice. |
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*/ |
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public function __construct(PointFilter $classFilter, IntroductionInfo $info) |
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{ |
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$this->classFilter = $classFilter; |
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$this->advice = $info; |
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} |
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/** |
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* Can the advised interfaces be implemented by the introduction advice? |
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* |
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* Invoked before adding an IntroductionAdvisor. |
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* |
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* @return void |
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* @throws \InvalidArgumentException if the advised interfaces can't be implemented by the introduction advice |
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*/ |
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public function validateInterfaces() |
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{ |
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$refInterface = new ReflectionClass(reset($this->advice->getInterfaces())); |
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$refImplementation = new ReflectionClass(reset($this->advice->getTraits())); |
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if (!$refInterface->isInterface()) { |
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throw new \InvalidArgumentException("Only interface can be introduced"); |
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} |
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if (!$refImplementation->isTrait()) { |
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throw new \InvalidArgumentException("Only trait can be used as implementation"); |
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} |
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foreach ($refInterface->getMethods() as $interfaceMethod) { |
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if (!$refImplementation->hasMethod($interfaceMethod->name)) { |
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throw new \DomainException("Implementation requires method {$interfaceMethod->name}"); |
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} |
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} |
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} |
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/** |
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* Returns an advice to apply |
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* |
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* @return Advice|IntroductionInfo|null |
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*/ |
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public function getAdvice() |
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{ |
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return $this->advice; |
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} |
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/** |
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* Return the filter determining which target classes this introduction should apply to. |
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* |
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* This represents the class part of a pointcut. Note that method matching doesn't make sense to introductions. |
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* |
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* @return PointFilter The class filter |
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*/ |
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public function getClassFilter() |
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{ |
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return $this->classFilter; |
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} |
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/** |
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* Set the class filter for advisor |
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* |
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* @param PointFilter $classFilter Filter for classes |
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*/ |
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public function setClassFilter(PointFilter $classFilter) |
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{ |
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$this->classFilter = $classFilter; |
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} |
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/** |
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* Return string representation of object |
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* |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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$adviceClass = get_class($this->advice); |
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$interfaceClasses = join(',', $this->advice->getInterfaces()); |
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return get_called_class() . ": advice [{$adviceClass}]; interfaces [{$interfaceClasses}] "; |
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} |
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} |
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goaop /
framework
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