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
16interface A {
17    x(): boolean {
18        return true;
19    }
20}
21
22class C implements A {
23}
24
25class B extends C {
26    public x: boolean;
27    public getX(): boolean {
28       return this.x();
29    }
30}
31
32function main(): void {
33    let instance: B = new B();
34    assert instance.getX() == true;
35}
36
37/* @@? 28:15 Error TypeError: Type 'boolean' has no call signatures.  */
38/* @@? 25:17 Error TypeError: Cannot inherit from class C, because field x is inherited with a different declaration type  */
39