private function processElement(ReflectionBase $element)
 {
     if ($element instanceof ReflectionConstant) {
         $this->elements[] = ['co', $element->getPrettyName()];
     } elseif ($element instanceof ReflectionFunction) {
         $this->elements[] = ['f', $element->getPrettyName()];
     } elseif ($element instanceof ReflectionClass) {
         $this->elements[] = ['c', $element->getPrettyName()];
     }
 }