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
16function fn(...ns: (Object|null|undefined)[]): int {
17    let sum: int = 0
18    for (const n of ns) {
19        sum += n as Int
20    }
21    return sum
22}
23
24function main(): int {
25    const fp: FunctionN<int> = fn
26    assert(fp(2, 3, 5) == 10)
27    const fp2: FunctionN<int> = (...vs: (Object|null|undefined)[]): int => {
28        let sum: int = 0
29        for (const v of vs) {
30            sum += v as Int
31        }
32        return sum
33    }
34    assert (fp2(7, 11, 13) == 31)
35    return 0
36}
37