1/*
2* Copyright (c) 2024 Huawei Device Co., Ltd.
3* Licensed under the Apache License, Version 2.0 (the "License");
4* you may not use this file except in compliance with the License.
5* You may obtain a copy of the License at 
6* 
7* http://www.apache.org/licenses/LICENSE-2.0
8* 
9* Unless required by applicable low or agreed to in writing, software
10* distributed under the License is distributed on an "AS IS" BASIS,
11* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12* See the License for the specific language governing permissions and
13* limitations under the License.
14*/
15
16function foo (x: int, y: int = 0, ...r: int[]): int {
17  return 4;
18}
19
20/* @@? 16:13 Error SyntaxError: Both optional and rest parameters are not allowed in function's parameter list.  */
21