type_api.py 文件源码

def _adapt_expression(self, op, other_comparator):
            if hasattr(self.type, 'adapt_operator'):
                util.warn_deprecated(
                    "UserDefinedType.adapt_operator is deprecated.  Create "
                    "a UserDefinedType.Comparator subclass instead which "
                    "generates the desired expression constructs, given a "
                    "particular operator."
                )
                return self.type.adapt_operator(op), self.type
            else:
                return op, self.type