public function __construct($filename)
 {
     parent::__construct($filename);
     $this->next = false;
     $this->classes = array();
     if (function_exists('token_get_all') == false) {
         Core::throwError('Function token_get_all() is not supported. You can not use the ClassManager.', E_NOTICE);
     }
 }
 public function __construct($filename, $cachedir = "data/cache/")
 {
     parent::__construct($filename, $cachedir);
 }