91 lines
2.9 KiB
Python
91 lines
2.9 KiB
Python
"""Vendoered from
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https://github.com/pypa/packaging/blob/main/packaging/_structures.py
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"""
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# Copyright (c) Donald Stufft and individual contributors.
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# All rights reserved.
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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class InfinityType:
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def __repr__(self) -> str:
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return "Infinity"
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def __hash__(self) -> int:
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return hash(repr(self))
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def __lt__(self, other: object) -> bool:
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return False
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def __le__(self, other: object) -> bool:
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return False
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def __eq__(self, other: object) -> bool:
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return isinstance(other, self.__class__)
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def __ne__(self, other: object) -> bool:
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return not isinstance(other, self.__class__)
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def __gt__(self, other: object) -> bool:
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return True
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def __ge__(self, other: object) -> bool:
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return True
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def __neg__(self: object) -> "NegativeInfinityType":
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return NegativeInfinity
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Infinity = InfinityType()
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class NegativeInfinityType:
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def __repr__(self) -> str:
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return "-Infinity"
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def __hash__(self) -> int:
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return hash(repr(self))
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def __lt__(self, other: object) -> bool:
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return True
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def __le__(self, other: object) -> bool:
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return True
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def __eq__(self, other: object) -> bool:
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return isinstance(other, self.__class__)
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def __ne__(self, other: object) -> bool:
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return not isinstance(other, self.__class__)
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def __gt__(self, other: object) -> bool:
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return False
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def __ge__(self, other: object) -> bool:
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return False
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def __neg__(self: object) -> InfinityType:
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return Infinity
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NegativeInfinity = NegativeInfinityType()
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