1#!/usr/bin/env python3 2# -*- coding: utf-8 -*- 3# 4# Copyright (c) 2024 Huawei Device Co., Ltd. 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16# 17 18from typing import Any, Optional 19 20import rich.repr 21 22from .primitive import PrimitiveMeta 23from .type_cache import type_cache 24 25 26class EmptyBase(metaclass=PrimitiveMeta): 27 """Base class for ArkTS mirror primitives.""" 28 29 __slots__ = () 30 31 def __eq__(self, other: Any) -> bool: 32 return type(self) is type(other) or type(self).__name__ == type(other).__name__ 33 34 # CC-OFFNXT(G.NAM.05) Standard function from rich package 35 # CC-OFFNXT(G.CLS.07) followed required interface 36 def __rich_repr__(self): 37 return [] 38 39 # CC-OFFNXT(G.NAM.05) internal function name 40 def __arkts_str__(self, *, depth: Optional[int] = None) -> str: 41 return type(self).__name__ 42 43 44@type_cache(scope="session") 45def mirror_empty_type(cls_name: str): 46 return rich.repr.auto(PrimitiveMeta(cls_name, (EmptyBase,), {}, module=__package__)) 47 48 49def mirror_undefined(): 50 return mirror_empty_type("undefined")() 51