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 {}
17interface I {}
18class B extends A implements I {}
19class C extends B {}
20
21function widening_reference_test(): void {
22  let C_ = new C();
23
24  let C_C = C_ as C;
25  let C_B = C_ as B;
26  let C_A = C_ as A;
27  let C_I = C_ as I;
28
29  let B_B = C_B as B;
30  let B_A = C_B as A;
31  let B_I = C_B as I;
32}
33