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<?php |
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declare(strict_types = 1); |
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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\Proxy; |
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use Go\Aop\Intercept\MethodInvocation; |
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use Go\Core\AspectContainer; |
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use Go\Core\AspectKernel; |
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use Go\Proxy\Part\FunctionCallArgumentListGenerator; |
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use ReflectionClass; |
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use ReflectionMethod; |
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use Zend\Code\Generator\DocBlockGenerator; |
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use Zend\Code\Generator\TraitGenerator; |
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use Zend\Code\Generator\ValueGenerator; |
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use Zend\Code\Reflection\DocBlockReflection; |
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/** |
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* Trait proxy builder that is used to generate a trait from the list of joinpoints |
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*/ |
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class TraitProxyGenerator extends ClassProxyGenerator |
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{ |
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/** |
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* Generates an child code by original class reflection and joinpoints for it |
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* |
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* @param ReflectionClass $originalTrait Original class reflection |
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* @param string $parentTraitName Parent trait name to use |
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* @param string[][] $traitAdvices List of advices for class |
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* @param bool $useParameterWidening Enables usage of parameter widening feature |
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*/ |
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public function __construct( |
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ReflectionClass $originalTrait, |
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string $parentTraitName, |
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array $traitAdvices, |
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bool $useParameterWidening |
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) { |
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$this->advices = $traitAdvices; |
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$dynamicMethodAdvices = $traitAdvices[AspectContainer::METHOD_PREFIX] ?? []; |
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$staticMethodAdvices = $traitAdvices[AspectContainer::STATIC_METHOD_PREFIX] ?? []; |
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$interceptedMethods = array_keys($dynamicMethodAdvices + $staticMethodAdvices); |
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$generatedMethods = $this->interceptMethods($originalTrait, $interceptedMethods); |
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$this->generator = new TraitGenerator( |
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$originalTrait->getShortName(), |
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$originalTrait->getNamespaceName(), |
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null, |
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null, |
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[], |
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[], |
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$generatedMethods, |
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DocBlockGenerator::fromReflection(new DocBlockReflection($originalTrait->getDocComment())) |
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); |
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// Normalize FQDN |
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$namespaceParts = explode('\\', $parentTraitName); |
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$parentNormalizedName = end($namespaceParts); |
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$this->generator->addTrait($parentNormalizedName); |
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foreach ($interceptedMethods as $methodName) { |
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$fullName = $parentNormalizedName . '::' . $methodName; |
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$this->generator->addTraitAlias($fullName, $methodName . '➩', ReflectionMethod::IS_PROTECTED); |
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} |
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} |
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/** |
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* Returns a method invocation for the specific trait method |
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* |
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* @param array $advices List of advices for this trait method |
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*/ |
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public static function getJoinPoint( |
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string $className, |
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string $joinPointType, |
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string $methodName, |
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array $advices |
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): MethodInvocation { |
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static $accessor; |
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if ($accessor === null) { |
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$aspectKernel = AspectKernel::getInstance(); |
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$accessor = $aspectKernel->getContainer()->get('aspect.advisor.accessor'); |
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} |
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$filledAdvices = []; |
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foreach ($advices as $advisorName) { |
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$filledAdvices[] = $accessor->$advisorName; |
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} |
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$joinPoint = new self::$invocationClassMap[$joinPointType]($className, $methodName . '➩', $filledAdvices); |
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return $joinPoint; |
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} |
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/** |
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* Creates string definition for trait method body by method reflection |
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*/ |
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protected function getJoinpointInvocationBody(ReflectionMethod $method): string |
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{ |
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$isStatic = $method->isStatic(); |
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$class = '\\' . __CLASS__; |
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$scope = $isStatic ? 'static::class' : '$this'; |
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$prefix = $isStatic ? AspectContainer::STATIC_METHOD_PREFIX : AspectContainer::METHOD_PREFIX; |
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$argumentList = new FunctionCallArgumentListGenerator($method); |
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$argumentCode = $argumentList->generate(); |
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$argumentCode = $scope . ($argumentCode ? ", $argumentCode" : ''); |
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$return = 'return '; |
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if ($method->hasReturnType()) { |
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$returnType = (string) $method->getReturnType(); |
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if ($returnType === 'void') { |
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// void return types should not return anything |
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$return = ''; |
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} |
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} |
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$advicesArray = new ValueGenerator($this->advices[$prefix][$method->name], ValueGenerator::TYPE_ARRAY_SHORT); |
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$advicesArray->setArrayDepth(1); |
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$advicesCode = $advicesArray->generate(); |
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return <<<BODY |
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static \$__joinPoint; |
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if (\$__joinPoint === null) { |
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\$__joinPoint = {$class}::getJoinPoint(__CLASS__, '{$prefix}', '{$method->name}', {$advicesCode}); |
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} |
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{$return}\$__joinPoint->__invoke($argumentCode); |
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BODY; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function generate(): string |
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{ |
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return $this->generator->generate(); |
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} |
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} |
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goaop /
framework
