sqltypes.py 文件源码

def adapt(self, impltype, **kw):
        schema = kw.pop('schema', self.schema)
        metadata = kw.pop('metadata', self.metadata)
        _create_events = kw.pop('_create_events', False)
        if issubclass(impltype, Enum):
            if self.enum_class is not None:
                args = [self.enum_class]
            else:
                args = self.enums
            return impltype(name=self.name,
                            schema=schema,
                            metadata=metadata,
                            convert_unicode=self.convert_unicode,
                            native_enum=self.native_enum,
                            inherit_schema=self.inherit_schema,
                            validate_strings=self.validate_strings,
                            _create_events=_create_events,
                            *args,
                            **kw)
        else:
            # TODO: why would we be here?
            return super(Enum, self).adapt(impltype, **kw)