Application: gvSIG desktop » gvSIG scripting

# pylint: disable=missing-docstring,too-few-public-methods,no-init,no-self-use,unused-argument,pointless-statement,expression-not-assigned,undefined-variable

# metaclasses that support membership test protocol

class MetaIterable(type):

    def __iter__(cls):

        return iter((1, 2, 3))

class MetaOldIterable(type):

    def __getitem__(cls, key):

        if key < 10:

            return key ** 2

        else:

            raise IndexError("bad index")

class MetaContainer(type):

    def __contains__(cls, key):

        return False

class IterableClass(object):

    __metaclass__ = MetaIterable

class OldIterableClass(object):

    __metaclass__ = MetaOldIterable

class ContainerClass(object):

    __metaclass__ = MetaContainer

def test():

    1 in IterableClass

    1 in OldIterableClass

    1 in ContainerClass

    1 in IterableClass()  # [unsupported-membership-test]

    1 in OldIterableClass()  # [unsupported-membership-test]

    1 in ContainerClass()  # [unsupported-membership-test]