def rewrite_anonymous_TypedDict(self, typed_dict: type) -> type:
class_name = get_typed_dict_class_name(self._class_name_hint)
required_fields, optional_fields = field_annotations(typed_dict)
has_required_fields = len(required_fields) != 0
has_optional_fields = len(optional_fields) != 0
if not has_required_fields and not has_optional_fields:
raise Exception(
"Expected empty TypedDicts to be shrunk as Dict[Any, Any]"
" but got an empty TypedDict anyway")
elif has_required_fields and not has_optional_fields:
self._add_typed_dict_class_stub(required_fields, class_name)
elif not has_required_fields and has_optional_fields:
self._add_typed_dict_class_stub(optional_fields,
class_name,
total=False)
else:
self._add_typed_dict_class_stub(required_fields, class_name)
base_class_name = class_name
class_name = get_typed_dict_class_name(
self._class_name_hint) + 'NonTotal'
self._add_typed_dict_class_stub(optional_fields,
class_name,
base_class_name,
total=False)
return make_forward_ref(class_name)
def test_field_annotations(self, required_fields, optional_fields):
typed_dict = make_typed_dict(required_fields=required_fields,
optional_fields=optional_fields)
assert field_annotations(typed_dict) == (required_fields,
optional_fields)