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https://github.com/graphql-python/graphene.git
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5b2eb1109a
* Pass extra kwargs down the meta chain * Rename name argument to allow custom name * Reword error message * Explicitly define kwargs * Revert change to explicit kwargs * name -> name_ for Enum __new__ function
49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
from typing import Type
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from ..utils.subclass_with_meta import SubclassWithMeta, SubclassWithMeta_Meta
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from ..utils.trim_docstring import trim_docstring
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class BaseOptions:
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name = None # type: str
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description = None # type: str
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_frozen = False # type: bool
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def __init__(self, class_type):
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self.class_type = class_type # type: Type
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def freeze(self):
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self._frozen = True
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def __setattr__(self, name, value):
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if not self._frozen:
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super(BaseOptions, self).__setattr__(name, value)
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else:
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raise Exception(f"Can't modify frozen Options {self}")
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def __repr__(self):
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return f"<{self.__class__.__name__} name={repr(self.name)}>"
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BaseTypeMeta = SubclassWithMeta_Meta
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class BaseType(SubclassWithMeta):
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@classmethod
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def create_type(cls, class_name, **options):
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return type(class_name, (cls,), {"Meta": options})
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@classmethod
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def __init_subclass_with_meta__(
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cls, name=None, description=None, _meta=None, **_kwargs
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):
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assert "_meta" not in cls.__dict__, "Can't assign meta directly"
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if not _meta:
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return
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_meta.name = name or cls.__name__
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_meta.description = description or trim_docstring(cls.__doc__)
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_meta.freeze()
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cls._meta = _meta
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super(BaseType, cls).__init_subclass_with_meta__()
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