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from ..utils.subclass_with_meta import SubclassWithMeta
from ..utils.trim_docstring import trim_docstring
import six
if six.PY3:
from typing import Type
class BaseOptions(object):
name = None # type: str
description = None # type: str
_frozen = False # type: bool
def __init__(self, class_type):
self.class_type = class_type # type: Type
def freeze(self):
self._frozen = True
def __setattr__(self, name, value):
if not self._frozen:
super(BaseOptions, self).__setattr__(name, value)
else:
raise Exception("Can't modify frozen Options {}".format(self))
def __repr__(self):
return "<{} name={}>".format(self.__class__.__name__, repr(self.name))
class BaseType(SubclassWithMeta):
@classmethod
def create_type(cls, class_name, **options):
return type(class_name, (cls,), {"Meta": options})
@classmethod
def __init_subclass_with_meta__(
cls, name=None, description=None, _meta=None, **_kwargs
):
assert "_meta" not in cls.__dict__, "Can't assign directly meta"
if not _meta:
return
_meta.name = name or cls.__name__
_meta.description = description or trim_docstring(cls.__doc__)
_meta.freeze()
cls._meta = _meta
super(BaseType, cls).__init_subclass_with_meta__()
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