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<T> {
17    fld : T;
18    f<U1, U2>() : A<U2> {
19        return new A<U2>();
20    }
21}
22
23function foo(): void {
24    let a = new A<Double>();
25    let b = a.f<Int, Double>();
26    let c = b.f<Int, Double>();
27}
28
29function main() : void {
30    foo();
31}