/**
  * @param \PHPParser_Node $node
  * @return PHPParser_Node|void
  */
 public function leaveNode(PHPParser_Node $node)
 {
     if (NULL !== $node->__get('class')) {
         $oldClassName = Tx_PhpParser_Parser_Utility_NodeConverter::getValueFromNode($node->__get('class'));
         if (strpos($oldClassName, $this->oldClassPrefix) !== FALSE) {
             $newClassName = str_replace($this->oldClassPrefix, $this->newClassPrefix, $oldClassName);
             $node->setClass(Tx_PhpParser_Parser_NodeFactory::buildNodeFromName($newClassName));
             return $node;
         }
     }
 }