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 16interface Interface { 17 instance_field: number 18} 19 20class Derived implements Interface { 21 private instance_field_: number = -1; 22 23 24 get instance_field(): number { 25 return this.instance_field_; 26 } 27 28} 29 30/* @@? 20:36 Error TypeError: Derived is not abstract and does not implement setter for instance_field property in Interface */ 31