query.py 文件源码

def _fill_result_cache_to_idx(self, idx):
        self._execute_query()
        if self._result_idx is None:
            self._result_idx = -1

        qty = idx - self._result_idx
        if qty < 1:
            return
        else:
            for idx in range(qty):
                self._result_idx += 1
                while True:
                    try:
                        self._result_cache[self._result_idx] = self._construct_result(self._result_cache[self._result_idx])
                        break
                    except IndexError:
                        self._result_cache.append(next(self._result_generator))