Class Factory

src/licensedcode/_vendor/attr/_make.py:2952–2988

Stores a factory callable. If passed as the default value to `attrs.field`, the factory is used to generate a new value. :param callable factory: A callable that takes either none or exactly one mandatory positional argument depending on *takes_self*. :param bool takes

class Factory(object):
    """
    Stores a factory callable.

    If passed as the default value to `attrs.field`, the factory is used to
    generate a new value.

    :param callable factory: A callable that takes either none or exactly one
        mandatory positional argument depending on *takes_self*.
    :param bool takes_self: Pass the partially initialized instance that is
        being initialized as a positional argument.

    .. versionadded:: 17.1.0  *takes_self*
    """

    __slots__ = ("factory", "takes_self")

    def __init__(self, factory, takes_self=False):
        """
        `Factory` is part of the default machinery so if we want a default
        value here, we have to implement it ourselves.
        """
        self.factory = factory
        self.takes_self = takes_self

    def __getstate__(self):
        """
        Play nice with pickle.
        """
        return tuple(getattr(self, name) for name in self.__slots__)

    def __setstate__(self, state):
        """
        Play nice with pickle.
        """
        for name, value in zip(self.__slots__, state):
            setattr(self, name, value)


_f = [