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# -*- coding: utf-8 -*- |
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# MIT License |
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# |
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# Copyright (c) 2021 Pincer |
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# |
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# Permission is hereby granted, free of charge, to any person obtaining |
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# a copy of this software and associated documentation files |
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# (the "Software"), to deal in the Software without restriction, |
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# including without limitation the rights to use, copy, modify, merge, |
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# publish, distribute, sublicense, and/or sell copies of the Software, |
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# and to permit persons to whom the Software is furnished to do so, |
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# subject to the following conditions: |
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# |
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# The above copyright notice and this permission notice shall be |
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# included in all copies or substantial portions of the Software. |
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# |
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
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# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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from __future__ import annotations |
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import copy |
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from dataclasses import dataclass, fields, _is_dataclass_instance |
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from enum import Enum |
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from typing import Dict, Union, Generic, TypeVar |
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from websockets.typing import Data |
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from .types import MissingType |
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T = TypeVar("T") |
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def _asdict_ignore_none(obj: Generic[T]) -> Union[tuple, dict, T]: |
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""" |
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Returns a dict from a dataclass that ignores |
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all values that are None |
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Modification of _asdict_inner from dataclasses |
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:param obj: |
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Dataclass obj |
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""" |
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if _is_dataclass_instance(obj): |
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result = [] |
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for f in fields(obj): |
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value = _asdict_ignore_none(getattr(obj, f.name)) |
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if isinstance(value, Enum): |
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result.append((f.name, value.value)) |
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# This if statement was added to the function |
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elif not isinstance(value, MissingType): |
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result.append((f.name, value)) |
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return dict(result) |
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elif isinstance(obj, tuple) and hasattr(obj, '_fields'): |
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return type(obj)(*[_asdict_ignore_none(v) for v in obj]) |
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elif isinstance(obj, (list, tuple)): |
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return type(obj)(_asdict_ignore_none(v) for v in obj) |
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elif isinstance(obj, dict): |
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return type(obj)( |
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( |
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_asdict_ignore_none(k), |
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_asdict_ignore_none(v) |
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) for k, v in obj.items() |
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) |
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else: |
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return copy.deepcopy(obj) |
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@dataclass |
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class APIObject: |
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""" |
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Represents an object which has been fetched from the Discord API. |
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""" |
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# def __post_init__(self): |
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# fin = { |
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# key: _eval_type(ForwardRef(value), globals(), globals()) |
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# for key, value in self.__annotations__.items() |
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# } |
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# |
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# # pprint(self.__annotations__) |
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# # pprint(get_type_hints(self)) |
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# print(fin) |
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# print("Post init", self) |
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@classmethod |
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def from_dict(cls: Generic[T], data: Data[str, Union[str, bool, int]]) -> T: |
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""" |
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Parse an API object from a dictionary. |
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""" |
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# Disable inspection for IDE because this is valid code for the |
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# inherited classes: |
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# noinspection PyArgumentList |
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return cls(**{ |
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key: (value.value if isinstance(value, Enum) |
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else value) for key, value in data.items() |
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}) |
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def to_dict(self) -> Dict: |
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""" |
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Transform the current object to a dictionary representation. |
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""" |
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return _asdict_ignore_none(self) |
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Pincer-org /
Pincer
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