Viewing file:  _structures.py (1.97 KB) -rw-r--r--
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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
class InfinityType(object):
def __repr__(self):
# type: () -> str
return "Infinity"
def __hash__(self):
# type: () -> int
return hash(repr(self))
def __lt__(self, other):
# type: (object) -> bool
return False
def __le__(self, other):
# type: (object) -> bool
return False
def __eq__(self, other):
# type: (object) -> bool
return isinstance(other, self.__class__)
def __ne__(self, other):
# type: (object) -> bool
return not isinstance(other, self.__class__)
def __gt__(self, other):
# type: (object) -> bool
return True
def __ge__(self, other):
# type: (object) -> bool
return True
def __neg__(self):
# type: (object) -> NegativeInfinityType
return NegativeInfinity
Infinity = InfinityType()
class NegativeInfinityType(object):
def __repr__(self):
# type: () -> str
return "-Infinity"
def __hash__(self):
# type: () -> int
return hash(repr(self))
def __lt__(self, other):
# type: (object) -> bool
return True
def __le__(self, other):
# type: (object) -> bool
return True
def __eq__(self, other):
# type: (object) -> bool
return isinstance(other, self.__class__)
def __ne__(self, other):
# type: (object) -> bool
return not isinstance(other, self.__class__)
def __gt__(self, other):
# type: (object) -> bool
return False
def __ge__(self, other):
# type: (object) -> bool
return False
def __neg__(self):
# type: (object) -> InfinityType
return Infinity
NegativeInfinity = NegativeInfinityType()
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