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
16class A {
17    foo(p: Object[]): int {
18        let s = 0
19        for (let v of p) {
20            s += v instanceof A ? 1 : 0
21        }
22        return s
23    }
24    bar(p: A[]): int {
25        let s = 0
26        for (let v of p) {
27            s += v instanceof A ? 1 : 0
28        }
29        return s
30    }
31}
32
33
34class B extends A{}
35
36function main() {
37    assert new A().foo([new Object(), new Long(), new Int()]) == 0
38    assert new A().foo([new A(), new A(), new Object()]) == 2
39    assert new A().foo(["aaa", new A(), new Object()]) == 1
40    assert new A().foo([1, "hello", new A()]) == 1
41    assert new A().bar([new B(), new B(), new A()]) == 3
42}
43