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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 2013, 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\Framework; |
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use Go\Aop\Intercept\FunctionInvocation; |
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use Go\Aop\Intercept\Interceptor; |
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use ReflectionFunction; |
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/** |
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* Function invocation implementation |
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*/ |
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class ReflectionFunctionInvocation extends AbstractInvocation implements FunctionInvocation |
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{ |
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/** |
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* Instance of reflection function |
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* |
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* @var null|ReflectionFunction |
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*/ |
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protected $reflectionFunction = null; |
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/** |
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* Constructor for function invocation |
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* |
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* @param string $functionName Function to invoke |
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* @param $advices array List of advices for this invocation |
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*/ |
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public function __construct($functionName, array $advices) |
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{ |
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parent::__construct($advices); |
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$this->reflectionFunction = new ReflectionFunction($functionName); |
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} |
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/** |
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* Invokes original function and return result from it |
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* |
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* @return mixed |
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*/ |
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public function proceed() |
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{ |
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if (isset($this->advices[$this->current])) { |
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/** @var $currentInterceptor Interceptor */ |
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$currentInterceptor = $this->advices[$this->current++]; |
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return $currentInterceptor->invoke($this); |
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} |
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return $this->reflectionFunction->invokeArgs($this->arguments); |
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} |
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/** |
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* Gets the function being called. |
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* |
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* @return ReflectionFunction the method being called. |
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*/ |
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public function getFunction() |
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{ |
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return $this->reflectionFunction; |
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} |
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/** |
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* Returns the object that holds the current joinpoint's static |
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* part. |
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* |
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* @return object|null the object (can be null if the accessible object is |
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* static). |
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*/ |
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public function getThis() |
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{ |
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return null; |
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} |
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/** |
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* Returns the static part of this joinpoint. |
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* |
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* @return object |
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*/ |
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public function getStaticPart() |
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{ |
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return $this->reflectionFunction; |
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} |
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/** |
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* Invokes current function invocation with all interceptors |
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* |
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* @param array $arguments Arguments for the invocation |
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* |
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* @return mixed |
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*/ |
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final public function __invoke(array $arguments = []) |
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{ |
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if ($this->level) { |
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array_push($this->stackFrames, array($this->arguments, $this->current)); |
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} |
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++$this->level; |
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$this->current = 0; |
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$this->arguments = $arguments; |
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$result = $this->proceed(); |
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--$this->level; |
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if ($this->level) { |
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list($this->arguments, $this->current) = array_pop($this->stackFrames); |
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} |
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return $result; |
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} |
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/** |
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* Returns a friendly description of current joinpoint |
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* |
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* @return string |
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*/ |
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final public function __toString() |
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{ |
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return sprintf( |
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"execution(%s())", |
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$this->reflectionFunction->getName() |
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); |
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} |
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} |
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