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1/*
2 * Copyright (c) 2022-2025 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
16/*---
17 desc: 10.06 Interface Method Declarations
18 name: 10.interfaces/10.06.interface_method _declarations/10.06.02_inheritance_and_overriding/interface_overriding_02
19 tags: []
20 ---*/
21
22interface I {
23  foo(): I
24
25  bar(): I
26}
27
28interface A extends I {
29  foo(): A
30}
31
32interface AA extends A {
33  foo(): AA
34
35  bar(): AA
36}
37
38
39class B implements AA {
40  private value: string = "";
41
42  foo(): AA {
43    this.value = "foo(): AA"
44    return new B();
45  }
46
47  bar(): AA {
48    this.value = "bar(): AA"
49    return new B();
50  }
51
52  getValue(): string {
53    return this.value;
54  }
55}
56
57function main() {
58  let b = new B()
59  b.bar()
60  assertEQ( b.getValue(), "bar(): AA")
61}
62
63
64