1/*
2 * Copyright (c) 2021-2024 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 law 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
16class cls extends Object {
17    override toString() : String {
18        return "cls";
19    }
20}
21
22function foo<T extends Object>(item : T) : String {
23    let str = item.toString();
24    return str;
25}
26
27function main() : void {
28    foo<Int>(10);
29    foo<Int>(new Int(20));
30    foo<cls>(new cls());
31}
32