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 */
15class A<T extends A<T>>{
16
17    foo<S extends A<S>>(x:T){}
18}
19
20class C extends A<C>{}
21class D extends A<D>{}
22function main(){
23    let y:D
24    let a_obj = new A<C>()
25    a_obj.foo<C>(y) 
26}
27/* @@? 25:18 Error TypeError: Type 'D' is not compatible with type 'C' at index 1  */
28/* @@? 25:5 Error TypeError: No matching call signature for foo(D)  */
29