import { AppEventEmitter } from '../utils/app-event-emitter'; import { AppEvents } from './interface/app-events'; /** * App搜索事件集 * * @export * @class AppEvent */ export class AppEvent<K extends keyof AppEvents> extends AppEventEmitter<K, AppEvents[K]> { /** * 唯一实例 * * @private * @static * @memberof AppEvent */ private static readonly instance = new AppEvent(); /** * Creates an instance of AppEvent. * @memberof AppEvent */ constructor() { super(); if (AppEvent.instance) { return AppEvent.instance as any; } } /** * 获取唯一实例 * * @static * @return {*} {AppEvent} * @memberof AppEvent */ static getInstance() { return this.instance; } }