# MIT License
# Copyright (c) 2023 Sarthak
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
from __future__ import annotations
import typing
[docs]class Undefined:
"""An instance of this class is used as a placeholder to represent attributes and variables which
are not defined *yet*."""
UNDEFINED = Undefined()
"""Instance of Undefined."""
[docs]class Empty:
"""This class is used for variables in an embed constructor to represent empty values."""
def __xor__(self, other: object) -> object:
return other
@classmethod
def verify(cls, other: typing.Any) -> typing.Any:
return None if isinstance(other, Empty) else other
EMPTY = Empty()
"""Instance of Empty."""
[docs]class Null:
"""Class to simulate difference between an argument provided as None v/s a `null` value to send to the discord API.
This class is used as a placeholder for arguments in REST methods.
"""
NULL = Null()
"""Instance of Null."""