def __new__(cls, name, bases, methods):
if len(bases) != 1:
raise TypeError("Cannot have multiple inheritance with Categories")
c = bases[0].real_class
if c.__name__ != name:
raise TypeError("Category name must be same as class name")
m = [
x[1] for x in methods.items()
if x[0] not in cls._IGNORENAMES and isinstance(
x[1], (FunctionType, MethodType, selector, classmethod))
]
vars = [
x for x in methods.items()
if x[0] not in cls._IGNORENAMES and not isinstance(
x[1], (FunctionType, MethodType, selector, classmethod))
]
for k, v in vars:
if isinstance(v, ivar):
raise TypeError("Cannot add instance variables in a Category")
classAddMethods(c, m)
for k, v in vars:
setattr(c, k, v)
return c
def __new__(cls, name, bases, methods):
if len(bases) != 1:
raise TypeError("Cannot have multiple inheritance with Categories")
c = bases[0].real_class
if c.__name__ != name:
raise TypeError("Category name must be same as class name")
m = [ x[1] for x in methods.iteritems() if x[0] not in cls._IGNORENAMES and isinstance(x[1], (FunctionType, MethodType, selector, classmethod))]
vars = [ x for x in methods.iteritems() if x[0] not in cls._IGNORENAMES and not isinstance(x[1], (FunctionType, MethodType, selector, classmethod))]
for k, v in vars:
if isinstance(v, ivar):
raise TypeError("Cannot add instance variables in a Category")
classAddMethods(c, m)
for k, v in vars:
setattr(c, k, v)
return c
def classAddMethod(cls, name, method):
"""
Add a single method to a class. 'name' is the ObjC selector
"""
if isinstance(method, selector):
sel = selector(method.callable,
selector=name,
signature=method.signature,
isClassMethod=method.isClassMethod)
else:
sel = selector(method, selector=name)
return classAddMethods(cls, [sel])
def classAddMethod(cls, name, method):
"""
Add a single method to a class. 'name' is the ObjC selector
"""
if isinstance(method, selector):
sel = selector(method.callable,
selector=name,
signature=method.signature,
isClassMethod=method.isClassMethod)
else:
sel = selector(method, selector=name)
return classAddMethods(cls, [sel])