1/* 2 * Copyright (c) 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 16interface inter<T> { } 17 18class B<T> extends A<T> implements inter<T> { 19} 20 21function foo1(b: Partial<B<string>>) { 22} 23 24/* @@? 18:20 Error TypeError: Cannot find type 'A'. */ 25/* @@? 18:20 Error TypeError: The super type of 'B' class is not extensible. */ 26