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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\Proxy; |
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use Go\Aop\Features; |
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use Go\Core\AspectContainer; |
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use Go\Core\AspectKernel; |
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use Go\Core\LazyAdvisorAccessor; |
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use TokenReflection\ReflectionMethod as ParsedMethod; |
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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 TraitProxy extends ClassProxy |
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{ |
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/** |
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* List of advices for traits |
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* |
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* @var array |
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*/ |
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protected static $traitAdvices = []; |
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/** |
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* Overridden static property for TraitProxy |
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* |
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* {@inheritDoc} |
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*/ |
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protected static $invocationClassMap = []; |
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/** |
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* Inject advices for given trait |
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* |
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* NB This method will be used as a callback during source code evaluation to inject joinpoints |
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* |
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* @param string $className Aop child proxy class |
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* @param array|\Go\Aop\Advice[] $traitAdvices List of advices to inject into class |
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* |
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* @return void |
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*/ |
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public static function injectJoinPoints($className, array $traitAdvices = []) |
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{ |
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self::$traitAdvices[$className] = $traitAdvices; |
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} |
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public static function getJoinPoint($traitName, $className, $joinPointType, $pointName) |
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{ |
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/** @var LazyAdvisorAccessor $accessor */ |
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static $accessor = null; |
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if (empty(self::$invocationClassMap)) { |
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$aspectKernel = AspectKernel::getInstance(); |
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$accessor = $aspectKernel->getContainer()->get('aspect.advisor.accessor'); |
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self::setMappings( |
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$aspectKernel->hasFeature(Features::USE_SPLAT_OPERATOR) |
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); |
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} |
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$advices = self::$traitAdvices[$traitName][$joinPointType][$pointName]; |
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$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, $pointName . '➩', $filledAdvices); |
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return $joinpoint; |
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} |
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/** |
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* Creates definition for trait method body |
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* |
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* @param ParsedMethod $method Method reflection |
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* |
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* @return string new method body |
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*/ |
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protected function getJoinpointInvocationBody(ParsedMethod $method) |
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{ |
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$isStatic = $method->isStatic(); |
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$class = '\\' . __CLASS__; |
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$scope = $isStatic ? self::$staticLsbExpression : '$this'; |
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$prefix = $isStatic ? AspectContainer::STATIC_METHOD_PREFIX : AspectContainer::METHOD_PREFIX; |
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$args = $this->prepareArgsLine($method); |
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$args = $scope . ($args ? ", [$args]" : ''); |
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return <<<BODY |
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static \$__joinPoint = null; |
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if (!\$__joinPoint) { |
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\$__joinPoint = {$class}::getJoinPoint(__TRAIT__, __CLASS__, '{$prefix}', '{$method->name}'); |
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} |
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return \$__joinPoint->__invoke($args); |
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BODY; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function __toString() |
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{ |
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$classCode = ( |
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$this->class->getDocComment() . "\n" . // Original doc-block |
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'trait ' . // 'trait' keyword |
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$this->name . "\n" . // Name of the trait |
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"{\n" . // Start of trait body |
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$this->indent( |
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'use ' . join(', ', array(-1 => $this->parentClassName) + $this->traits) . |
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$this->getMethodAliasesCode() |
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) . "\n" . // Use traits and aliases section |
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$this->indent(join("\n", $this->methodsCode)) . "\n" . // Method definitions |
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"}" // End of trait body |
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); |
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return $classCode |
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// Inject advices on call |
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. PHP_EOL |
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. '\\' . __CLASS__ . "::injectJoinPoints('" |
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. $this->class->name . "'," |
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. var_export($this->advices, true) . ");"; |
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} |
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private function getMethodAliasesCode() |
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{ |
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$aliasesLines = []; |
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foreach (array_keys($this->methodsCode) as $methodName) { |
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$aliasesLines[] = "{$this->parentClassName}::{$methodName} as protected {$methodName}➩;"; |
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} |
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return "{\n " . $this->indent(join("\n", $aliasesLines)) . "\n}"; |
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} |
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} |
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goaop /
framework
