HarmonyOS 鸿蒙Next IDataSource的onDatasetChange()崩溃

在下面的代码中把BasicDataSource里面的所有的操作，都改成onDatasetChange操作类型的，不要使用类似这种listener.onDataDelete(index)

[@Entry](/user/Entry)
[@Component](/user/Component)
struct Index {
 private data: MyDataSource = new MyDataSource();

 setName() {
   const num: number = Math.random()
   if (num > 0.5) {
     return '这个名字很长'
   } else {
     return '短名字'
   }
 }

 aboutToAppear() {
   for (let i = 0; i <= 10; i++) {
     this.data.pushData(new userInfo($r('app.media.startIcon'), this.setName()))
   }
 }

 [@Builder](/user/Builder)
 setUser(item: userInfo) {
   Column({ space: 15 }) {
     Image(item.imgUrl).width(60).borderRadius(30)
     Text(item.name).fontSize(16).maxLines(1).textOverflow({ overflow: TextOverflow.Ellipsis })
   }.width(100).onAppear(() => {
     console.log('is aaa')
   })
 }

 build() {
   Column() {
     List({ space: 5 }) {
       LazyForEach(this.data, (item: userInfo, index: number) => {
         ListItem() {
           this.setUser(item)
         }
       }, (item: userInfo, index: number) => item.name + index)
     }
     .width('100%')
     .height(115)
     .listDirection(Axis.Horizontal)
     .scrollBar(BarState.On)
     .cachedCount(5)
   }.margin({ top: 20 })
 }
}

class BasicDataSource implements IDataSource {
 private listeners: DataChangeListener[] = [];
 private originDataArray: userInfo[] = [];

 public totalCount(): number {
   return 0;
 }

 public getData(index: number): userInfo {
   return this.originDataArray[index];
 }

 registerDataChangeListener(listener: DataChangeListener): void {
   if (this.listeners.indexOf(listener) < 0) {
     console.info('add listener');
     this.listeners.push(listener);
   }
 }

 unregisterDataChangeListener(listener: DataChangeListener): void {
   const pos = this.listeners.indexOf(listener);
   if (pos >= 0) {
     console.info('remove listener');
     this.listeners.splice(pos, 1);
   }
 }

 notifyDataReload(): void {
   this.listeners.forEach(listener => {
     listener.onDataReloaded();
   })
 }

 notifyDataAdd(index: number): void {
   this.listeners.forEach(listener => {
     // listener.onDataAdd(index);
     // 写法2：
     // listener.onDatasetChange([ {type: DataOperationType.ADD, index: index} ]);
     listener.onDatasetChange([{ type: DataOperationType.DELETE, index: index, }]);
   })
 }

 notifyDataChange(index: number): void {
   this.listeners.forEach(listener => {
     listener.onDataChange(index);
   })
 }

 notifyDataDelete(index: number): void {
   this.listeners.forEach(listener => {
     listener.onDataDelete(index);
   })
 }

 notifyDataMove(from: number, to: number): void {
   this.listeners.forEach(listener => {
     listener.onDataMove(from, to);
   })
 }
}

class MyDataSource extends BasicDataSource {
 private dataArray: userInfo[] = [];

 public totalCount(): number {
   return this.dataArray.length;
 }

 public getData(index: number): userInfo {
   return this.dataArray[index];
 }

 public addData(index: number, data: userInfo): void {
   this.dataArray.splice(index, 0, data);
   this.notifyDataAdd(index);
 }

 public pushData(data: userInfo): void {
   this.dataArray.push(data);
   this.notifyDataAdd(this.dataArray.length - 1);
 }
}

class userInfo {
 imgUrl: Resource = $r('app.media.app_icon')
 name: string = ''

 constructor(imgUrl: Resource, name: string) {
   this.imgUrl = imgUrl
   this.name = name
 }
}