mirror of
https://github.com/PaiGramTeam/PamGram.git
synced 2024-11-25 07:36:27 +00:00
104 lines
3.3 KiB
Python
104 lines
3.3 KiB
Python
import json
|
||
from copy import deepcopy
|
||
from typing import Dict, Union, Optional, List
|
||
|
||
from model.types import JSONDict
|
||
|
||
|
||
class BaseObject:
|
||
"""
|
||
大多数数据对象的基础类型
|
||
"""
|
||
|
||
def __new__(cls, *args: object, **kwargs: object) -> "BaseObject":
|
||
instance = super().__new__(cls)
|
||
return instance
|
||
|
||
def __str__(self) -> str:
|
||
return str(self.to_dict())
|
||
|
||
def __getitem__(self, item: str) -> object:
|
||
try:
|
||
return getattr(self, item)
|
||
except AttributeError as exc:
|
||
raise KeyError(
|
||
f"Objects of type {self.__class__.__name__} don't have an attribute called "
|
||
f"`{item}`."
|
||
) from exc
|
||
|
||
def __getstate__(self) -> Dict[str, Union[str, object]]:
|
||
return self._get_attrs(include_private=True, recursive=False)
|
||
|
||
def __setstate__(self, state: dict) -> None:
|
||
for key, val in state.items():
|
||
setattr(self, key, val)
|
||
|
||
def __deepcopy__(self, memodict: dict = None):
|
||
if memodict is None:
|
||
memodict = {}
|
||
cls = self.__class__
|
||
result = cls.__new__(cls) # 创建新实例
|
||
attrs = self._get_attrs(include_private=True) # 获取其所有属性
|
||
|
||
for k in attrs: # 在DeepCopy对象中设置属性
|
||
setattr(result, k, deepcopy(getattr(self, k), memodict))
|
||
return result
|
||
|
||
# 添加插槽可减少内存使用，并允许更快的属性访问
|
||
__slots__ = ()
|
||
|
||
def _get_attrs(self, include_private: bool = False, recursive: bool = False, ) -> Dict[str, Union[str, object]]:
|
||
data = {}
|
||
if not recursive:
|
||
try:
|
||
# __dict__ 具有来自超类的属性，因此无需在下面的for循环中输入
|
||
data.update(self.__dict__)
|
||
except AttributeError:
|
||
pass
|
||
# 我们希望使用self获取类的所有属性，但如果使用 self.__slots__ ，仅包括该类本身使用的属性，而不是它的超类
|
||
# 因此，我们得到它的MRO，然后再得到它们的属性
|
||
# 使用“[：-1]”切片排除了“object”类
|
||
for cls in self.__class__.__mro__[:-1]:
|
||
for key in cls.__slots__: # 忽略 属性已定义
|
||
if not include_private and key.startswith("_"):
|
||
continue
|
||
|
||
value = getattr(self, key, None)
|
||
if value is not None:
|
||
if recursive and hasattr(value, "to_dict"):
|
||
data[key] = value.to_dict()
|
||
else:
|
||
data[key] = value
|
||
elif not recursive:
|
||
data[key] = value
|
||
|
||
return data
|
||
|
||
@staticmethod
|
||
def _parse_data(data: Optional[JSONDict]) -> Optional[JSONDict]:
|
||
return None if data is None else data.copy()
|
||
|
||
@classmethod
|
||
def de_json(cls, data: Optional[JSONDict]):
|
||
data = cls._parse_data(data)
|
||
|
||
if data is None:
|
||
return None
|
||
|
||
if cls == BaseObject:
|
||
return cls()
|
||
return cls(**data)
|
||
|
||
@classmethod
|
||
def de_list(cls, data: Optional[List[JSONDict]]) -> List:
|
||
if not data:
|
||
return []
|
||
|
||
return [cls.de_json(d) for d in data]
|
||
|
||
def to_json(self) -> str:
|
||
return json.dumps(self.to_dict())
|
||
|
||
def to_dict(self) -> JSONDict:
|
||
return self._get_attrs(recursive=True)
|