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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

# The Universal Permissive License (UPL), Version 1.0

# Subject to the condition set forth below, permission is hereby granted to any

# person obtaining a copy of this software, associated documentation and/or

# data (collectively the "Software"), free of charge and under any and all

# copyright rights in the Software, and any and all patent rights owned or

# freely licensable by each licensor hereunder covering either (i) the

# unmodified Software as contributed to or provided by such licensor, or (ii)

# the Larger Works (as defined below), to deal in both

# (a) the Software, and

# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if

# one is included with the Software each a "Larger Work" to which the Software

# is contributed by such licensors),

# without restriction, including without limitation the rights to copy, create

# derivative works of, display, perform, and distribute the Software and make,

# use, sell, offer for sale, import, export, have made, and have sold the

# Software and the Larger Work(s), and to sublicense the foregoing rights on

# either these or other terms.

# This license is subject to the following condition:

# The above copyright notice and either this complete permission notice or at a

# minimum a reference to the UPL must 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.

class CallableProxyType(object):

pass

def _proxy_get(proxy):

attr = object.__getattribute__(proxy, "_weakref")()

if attr is None:

raise ReferenceError("weakly-referenced object no longer exists")

return attr

class ProxyType(object):

def __init__(self, other, callback=None):

import weakref

object.__setattr__(self, "_weakref", weakref.ref(other, callback))

def __getattribute__(self, key):

return getattr(_proxy_get(self), key)

def __setattr__(self, key, value):

setattr(_proxy_get(self), key, value)

def __delattr__(self, key):

return delattr(_proxy_get(self), key)

def __getitem__(self, key):

return _proxy_get(self)[key]

def __setitem__(self, key, value):

_proxy_get(self)[key] = value

def __delitem__(self, key):

del _proxy_get(self)[key]

def __repr__(self):

obj = object.__getattribute__(self, '_weakref')()

return f"<weakproxy at {id(self)} to {type(obj).__name__} at {id(obj)}>"

def __str__(self):

return str(_proxy_get(self))

def __bytes__(self):

return _proxy_get(self).__bytes__()

def __lt__(self, other):

return _proxy_get(self) < other

def __le__(self, other):

return _proxy_get(self) <= other

def __eq__(self, other):

return _proxy_get(self) == other

def __ne__(self, other):

return _proxy_get(self) != other

def __gt__(self, other):

return _proxy_get(self) > other

def __ge__(self, other):

return _proxy_get(self) >= other

def __hash__(self):

return hash(_proxy_get(self))

def __bool__(self):

return bool(_proxy_get(self))

def __call__(self, *args):

return _proxy_get(self)(*args)

def __len__(self):

return len(_proxy_get(self))

def __iter__(self):

return iter(_proxy_get(self))

def __next__(self):

return next(_proxy_get(self))

def __reversed__(self):

return _proxy_get(self).__reversed__()

def __contains__(self, obj):

return obj in _proxy_get(self)

def __add__(self, other):

return _proxy_get(self) + other

def __radd__(self, other):

return other + _proxy_get(self)

def __sub__(self, other):

return _proxy_get(self) - other

def __mul__(self, other):

return _proxy_get(self) * other

def __matmul__(self, other):

return _proxy_get(self) @ other

def __truediv__(self, other):

return _proxy_get(self) / other

def __floordiv__(self, other):

return _proxy_get(self) // other

def __mod__(self, other):

return _proxy_get(self) % other

def __divmod__(self, other):

return divmod(_proxy_get(self), other)

def __pow__(self, exp, mod=None):

return pow(_proxy_get(self), exp, mod)

def __lshift__(self, other):

return _proxy_get(self) << other

def __rshift__(self, other):

return _proxy_get(self) >> other

def __and__(self, other):

return _proxy_get(self) & other

def __xor__(self, other):

return _proxy_get(self) ^ other

def __or__(self, other):

return _proxy_get(self) | other

def __iadd__(self, other):

value = _proxy_get(self)

value += other

return value

def __isub__(self, other):

value = _proxy_get(self)

value -= other

return value

def __imul__(self, other):

value = _proxy_get(self)

value *= other

return value

def __imatmul__(self, other):

value = _proxy_get(self)

value @= other

return value

def __itruediv__(self, other):

value = _proxy_get(self)

value /= other

return value

def __ifloordiv__(self, other):

value = _proxy_get(self)

value //= other

return value

def __imod__(self, other):

value = _proxy_get(self)

value %= other

return value

def __ipow__(self, exp):

value = _proxy_get(self)

value **= exp

return value

def __ilshift__(self, other):

value = _proxy_get(self)

value <<= other

return value

def __irshift__(self, other):

value = _proxy_get(self)

value >>= other

return value

def __iand__(self, other):

value = _proxy_get(self)

value &= other

return value

def __ixor__(self, other):

value = _proxy_get(self)

value ^= other

return value

def __ior__(self, other):

value = _proxy_get(self)

value |= other

return value

def __neg__(self):

return -_proxy_get(self)

def __pos__(self):

return +_proxy_get(self)

def __abs__(self):

return abs(_proxy_get(self))

def __invert__(self):

return ~_proxy_get(self)

def __int__(self):

return int(_proxy_get(self))

def __float__(self):

return float(_proxy_get(self))

def __round__(self):

return round(_proxy_get(self))

def __index__(self):

v = _proxy_get(self)

if not hasattr(v, "__index__"):

raise TypeError("'%s' object cannot be interpreted as an integer" % type(v))

result = v.__index__()

result_type = type(result)

if not isinstance(result, int):

raise TypeError("__index__ returned non-int (type %s)" % result_type)

return result

proxy = ProxyType

# getweakrefcount, -> truffle

# getweakrefs, -> truffle

# ref, -> link in py

# proxy, -> link in py

# CallableProxyType,

# ProxyType,

# ReferenceType, -> truffle

# _remove_dead_weakref -> truffle

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