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