typechecker.py 文件源码

def auto_override_class(cls, force = False, force_recursive = False):
    """Works like auto_override, but is only applicable to classes.
    """
    if not pytypes.checking_enabled:
        return cls
    assert(isclass(cls))
    if not force and is_no_type_check(cls):
        return cls
    # To play it safe we avoid to modify the dict while iterating over it,
    # so we previously cache keys.
    # For this we don't use keys() because of Python 3.
    # Todo: Better use inspect.getmembers here
    keys = [key for key in cls.__dict__]
    for key in keys:
        memb = cls.__dict__[key]
        if force_recursive or not is_no_type_check(memb):
            if isfunction(memb) or ismethod(memb) or ismethoddescriptor(memb):
                if util._has_base_method(memb, cls):
                    setattr(cls, key, override(memb))
            elif isclass(memb):
                auto_override_class(memb, force_recursive, force_recursive)
    return cls