Javascript 使用Typescript时，如何从子控制器访问父控制器中的作用域函数？

我的页面上有一个DIV的父控制器

AppController

，还有一个子控制器

AdminHomeController

，它位于页面的某个区域内。这是我到目前为止所定义的

interface AppControllerScope extends ng.IScope {
    app: AppController;
}

app.controller('appController', AppController);

class AppController {  
    static $inject = ['$scope',] 
    constructor( public $scope: AppControllerScope ) { 
        $scope.app = this; 
    }         
    doTask() = () => {
       var x = 99;
    } 
} 

class AdminHomeController {   
    static $inject = ['$scope']
    constructor(  public $scope: ?? ) { // << What should my interface look like?
        $scope.home = this;
        app.doTask();
    }
    app = $scope.app; // How can I set up a parameter of this controller
                      // that can be used on my web page or inside this
                      // controller?
}

---

但我不确定它应该是什么样子。

以下是完整的代码：

/// <reference path="angular.d.ts" />

var app = angular.module('app', []);

interface AppControllerScope extends ng.IScope {
    app: AppController;
}

app.controller('appController', AppController);

class AppController {
    static $inject = ['$scope'];
    constructor(public $scope: AppControllerScope) {
        $scope.app = this;
    }
    doTask = () => {
        var x = 99;
    }
}

interface AdminHomeControllerScope extends AppControllerScope {
    home: AdminHomeController;
}

class AdminHomeController {

    public app: AppController;

    static $inject = ['$scope'];
    constructor(public $scope: AdminHomeControllerScope) { // << What should my interface look like?
        $scope.home = this;
        $scope.app.doTask();

        // For easier access if you want it
        this.app = $scope.app;
    }
}

//
var-app=angular.module（'app'，[]）；
接口AppControllerScope扩展了ng.isScope{
app:AppController；
}
app.controller（“appController”，appController）；
类AppController{
静态$inject=['$scope']；
构造函数（公共$scope:AppControllerScope）{
$scope.app=这个；
}
doTask=（）=>{
var x=99；
}
}
接口AdminHomeControllerScope扩展了AppControllerScope{
主页：AdminHomeController；
}
类AdminHomeController{
公共应用程序：AppController；
静态$inject=['$scope']；
构造函数（public$scope:AdminHomeControllerScope）{//为什么不为扩展AppControllerScope的AdminHomeController创建一个新接口呢？
/// <reference path="angular.d.ts" />

var app = angular.module('app', []);

interface AppControllerScope extends ng.IScope {
    app: AppController;
}

app.controller('appController', AppController);

class AppController {
    static $inject = ['$scope'];
    constructor(public $scope: AppControllerScope) {
        $scope.app = this;
    }
    doTask = () => {
        var x = 99;
    }
}

interface AdminHomeControllerScope extends AppControllerScope {
    home: AdminHomeController;
}

class AdminHomeController {

    public app: AppController;

    static $inject = ['$scope'];
    constructor(public $scope: AdminHomeControllerScope) { // << What should my interface look like?
        $scope.home = this;
        $scope.app.doTask();

        // For easier access if you want it
        this.app = $scope.app;
    }
}