1/* 2 * Copyright (c) 2022-2024 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@Entry 16@Component 17struct ValidateTrackObservedHomeComponent { 18 @Trace value: string = ''; 19 build() { 20 Column() { 21 Text("hello") 22 } 23 .height(500) 24 } 25} 26 27@ObservedV2 28@Component 29struct child { 30 build() { 31 Text("") 32 } 33} 34 35class A { 36 @Trace value: string = ''; 37} 38 39@ObservedV2 40class B { 41 @Trace value: string = ''; 42}