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 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
16function foo(a : (b: int) => int) {
17    assert(a(3) == 3);
18}
19
20function bar(a : (b: int, c: string) => int) {
21    assert(a(4, "c") == 6);
22}
23
24function main() {
25    let a = (b: int, c: string = "b"): int => {
26        if (c == "b") {
27            return b;
28        } else if (c == "a") {
29            return b + 1;
30        } else if (c == "c"){
31            return b + 2;
32        } else {
33            assert(false);
34        }
35
36        return 0;
37    };
38
39    assert(a(1) == 1);
40    assert(a(2,"c") == 4);
41    foo(a);
42    bar(a);
43}
44