Method check_protocol_issubclass

mypy/checkexpr.py:765–771

(self, e: CallExpr)

                self.chk.fail(message_registry.RUNTIME_PROTOCOL_EXPECTED, e)

    def check_protocol_issubclass(self, e: CallExpr) -> None:
        for expr in mypy.checker.flatten(e.args[1]):
            tp = get_proper_type(self.chk.lookup_type(expr))
            if isinstance(tp, FunctionLike) and tp.is_type_obj() and tp.type_object().is_protocol:
                attr_members = non_method_protocol_members(tp.type_object())
                if attr_members:
                    self.chk.msg.report_non_method_protocol(tp.type_object(), attr_members, e)

    def check_typeddict_call(
        self,