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|
cimport cython
import sys
IS_PYTHON2 = sys.version_info[0] == 2
__doc__ = ""
@cython.c_api_binop_methods(False)
@cython.cclass
class Base(object):
"""
>>> Base() + 2
'Base.__add__(Base(), 2)'
>>> 2 + Base()
'Base.__radd__(Base(), 2)'
>>> Base(implemented=False) + 2 #doctest: +ELLIPSIS
Traceback (most recent call last):
...
TypeError: unsupported operand type...
>>> 2 + Base(implemented=False) #doctest: +ELLIPSIS
Traceback (most recent call last):
...
TypeError: unsupported operand type...
>>> Base() ** 2
'Base.__pow__(Base(), 2, None)'
>>> 2 ** Base()
'Base.__rpow__(Base(), 2, None)'
>>> pow(Base(), 2, 100)
'Base.__pow__(Base(), 2, 100)'
"""
implemented: cython.bint
def __init__(self, *, implemented=True):
self.implemented = implemented
def __add__(self, other):
assert cython.typeof(self) == "Base"
if self.implemented:
return "Base.__add__(%s, %s)" % (self, other)
else:
return NotImplemented
def __radd__(self, other):
assert cython.typeof(self) == "Base"
if self.implemented:
return "Base.__radd__(%s, %s)" % (self, other)
else:
return NotImplemented
def __pow__(self, other, mod):
assert cython.typeof(self) == "Base"
if self.implemented:
return "Base.__pow__(%s, %s, %s)" % (self, other, mod)
else:
return NotImplemented
def __rpow__(self, other, mod):
assert cython.typeof(self) == "Base"
if self.implemented:
return "Base.__rpow__(%s, %s, %s)" % (self, other, mod)
else:
return NotImplemented
def __repr__(self):
return "%s()" % (self.__class__.__name__)
@cython.c_api_binop_methods(False)
@cython.cclass
class OverloadLeft(Base):
"""
>>> OverloadLeft() + 2
'OverloadLeft.__add__(OverloadLeft(), 2)'
>>> 2 + OverloadLeft()
'Base.__radd__(OverloadLeft(), 2)'
>>> OverloadLeft() + Base()
'OverloadLeft.__add__(OverloadLeft(), Base())'
>>> Base() + OverloadLeft()
'Base.__add__(Base(), OverloadLeft())'
>>> OverloadLeft(implemented=False) + Base(implemented=False) #doctest: +ELLIPSIS
Traceback (most recent call last):
...
TypeError: unsupported operand type...
>>> Base(implemented=False) + OverloadLeft(implemented=False) #doctest: +ELLIPSIS
Traceback (most recent call last):
...
TypeError: unsupported operand type...
"""
derived_implemented: cython.bint
def __init__(self, *, implemented=True):
super().__init__(implemented=implemented)
self.derived_implemented = implemented
def __add__(self, other):
assert cython.typeof(self) == "OverloadLeft"
if self.derived_implemented:
return "OverloadLeft.__add__(%s, %s)" % (self, other)
else:
return NotImplemented
@cython.c_api_binop_methods(False)
@cython.cclass
class OverloadRight(Base):
"""
>>> OverloadRight() + 2
'Base.__add__(OverloadRight(), 2)'
>>> 2 + OverloadRight()
'OverloadRight.__radd__(OverloadRight(), 2)'
>>> OverloadRight() + Base()
'Base.__add__(OverloadRight(), Base())'
>>> Base() + OverloadRight()
'OverloadRight.__radd__(OverloadRight(), Base())'
>>> OverloadRight(implemented=False) + Base(implemented=False) #doctest: +ELLIPSIS
Traceback (most recent call last):
...
TypeError: unsupported operand type...
>>> Base(implemented=False) + OverloadRight(implemented=False) #doctest: +ELLIPSIS
Traceback (most recent call last):
...
TypeError: unsupported operand type...
"""
derived_implemented: cython.bint
def __init__(self, *, implemented=True):
super().__init__(implemented=implemented)
self.derived_implemented = implemented
def __radd__(self, other):
assert cython.typeof(self) == "OverloadRight"
if self.derived_implemented:
return "OverloadRight.__radd__(%s, %s)" % (self, other)
else:
return NotImplemented
@cython.c_api_binop_methods(True)
@cython.cclass
class OverloadCApi(Base):
"""
>>> OverloadCApi() + 2
'OverloadCApi.__add__(OverloadCApi(), 2)'
>>> 2 + OverloadCApi()
'OverloadCApi.__add__(2, OverloadCApi())'
>>> OverloadCApi() + Base()
'OverloadCApi.__add__(OverloadCApi(), Base())'
>>> Base() + OverloadCApi()
'OverloadCApi.__add__(Base(), OverloadCApi())'
>>> OverloadCApi(derived_implemented=False) + 2 #doctest: +ELLIPSIS
Traceback (most recent call last):
...
TypeError: unsupported operand type...
>>> 2 + OverloadCApi(derived_implemented=False) #doctest: +ELLIPSIS
Traceback (most recent call last):
...
TypeError: unsupported operand type...
"""
derived_implemented: cython.bint
def __init__(self, *, derived_implemented=True):
super().__init__(implemented=True)
self.derived_implemented = derived_implemented
def __add__(self, other):
assert cython.typeof(self) != "OverloadCApi" # should be untyped
if isinstance(self, OverloadCApi):
derived_implemented = (<OverloadCApi>self).derived_implemented
else:
derived_implemented = (<OverloadCApi>other).derived_implemented
if derived_implemented:
return "OverloadCApi.__add__(%s, %s)" % (self, other)
else:
return NotImplemented
if sys.version_info >= (3, 5):
__doc__ += """
>>> d = PyVersionDependent()
>>> d @ 2
9
>>> 2 @ d
99
>>> i = d
>>> i @= 2
>>> i
999
"""
@cython.c_api_binop_methods(False)
@cython.cclass
class PyVersionDependent:
"""
>>> d = PyVersionDependent()
>>> d / 2
5
>>> 2 / d
2
>>> d // 2
55
>>> 2 // d
22
>>> i = d
>>> i /= 2
>>> i
4
>>> i = d
>>> i //= 2
>>> i
44
"""
def __div__(self, other):
assert IS_PYTHON2
return 5
def __rdiv__(self, other):
assert IS_PYTHON2
return 2
def __idiv__(self, other):
assert IS_PYTHON2
return 4
def __truediv__(self, other):
assert not IS_PYTHON2
return 5
def __rtruediv__(self, other):
assert not IS_PYTHON2
return 2
def __itruediv__(self, other):
assert not IS_PYTHON2
return 4
def __floordiv__(self, other):
return 55
def __rfloordiv__(self, other):
return 22
def __ifloordiv__(self, other):
return 44
def __matmul__(self, other):
return 9
def __rmatmul__(self, other):
return 99
def __imatmul__(self, other):
return 999
# TODO: Test a class that only defines the `__r...__()` methods.
|
