original_string: protected function __offset($vtable_offset)
      {
          $vtable = $this->bb_pos - $this->bb->getInt($this->bb_pos);
          return $vtable_offset < $this->bb->getShort($vtable) ? $this->bb->getShort($vtable + $vtable_offset) : 0;
      }
code: protected function __offset($vtable_offset)
      {
          $vtable = $this->bb_pos - $this->bb->getInt($this->bb_pos);
          return $vtable_offset < $this->bb->getShort($vtable) ? $this->bb->getShort($vtable + $vtable_offset) : 0;
      }
code_tokens: protected function __offset ( $ vtable_offset ) { $ vtable = $ this -> bb_pos - $ this -> bb -> getInt ( $ this -> bb_pos ) ; return $ vtable_offset < $ this -> bb -> getShort ( $ vtable ) ? $ this -> bb -> getShort ( $ vtable + $ vtable_offset ) : 0 ; }
docstring: returns actual vtable offset
  
  @param $vtable_offset
  @return int offset > 0 means exist value. 0 means not exist
docstring_tokens: returns actual vtable offset