/**
* Create a callback which bind the advice in the weaver.
*
* @param int $kind The kind.
*
* @param \Aop\Pointcut\PointcutInterface $pointcut The pointcut instance containing
* the selector.
*
* @param \Aop\Advice\AdviceInterface $advice The callback to invoke
* if pointcut is triggered.
*
* @param array $options An array of options for the advice.
*
* @return \Closure The callback (advice) for the weaver.
*
* @throws \Aop\Exception\PointcutException If the pointcut does not contain the selector.
*/
protected function createBinder($kind, PointcutInterface $pointcut, AdviceInterface $advice, array $options = [])
{
// assign the index of this
$this->lastIndex++;
$index = $this->lastIndex;
// if options for the advice
if (!empty($options['advice'])) {
$advice->addOptions($options['advice']);
}
if (!$pointcut->getSelector()) {
throw new PointcutException('The instance of the pointcut must contain the selector.');
}
// add the advice in the queue
self::$context[$index] = ['advice' => $advice, 'pointcut' => $pointcut, 'binder' => null, 'called' => false, 'enabled' => true, 'args' => null, 'exception' => null, 'kind' => $kind];
// create the reference of the context to add to Patchwork
$context =& self::$context;
// add the advice in the binder (container of callback) and bind the advice
$this->doBindAdvice($index);
return function () use($index, &$context) {
// change the status
$context[$index]['called'] = true;
// arguments passed to the intercepted function
$context[$index]['args'] = Stack\top('args');
// Resolve to JoinPoint
// and execute the registered callback
// for this pointcut (the advice or the original code)
return $context[$index]['binder']($this->resolveJoinPoint($index));
};
}
/**
* Add a `Pointcut` in the `PointcutCollection`.
*
* @param \Aop\Pointcut\PointcutInterface $pointcut
* @return PointcutCollection The current instance.
*/
public function add(PointcutInterface $pointcut)
{
$this->container[$pointcut->getName()] = $pointcut;
return $this;
}
