如何使用 SystemJS 将 Angular TypeScript 与内部模块捆绑在一起

Question

我们正在考虑将我们的一些 Angular 项目转移到 typescript 并在内部模块/命名空间方面遇到一些问题。

我们在 github 上发布了这个工作示例：https://github.com/hikirsch/TypeScriptSystemJSAngularSampleApp

步骤：

npm install jspm -g
npm install
cd src/
jspm install
jspm install --dev
cd ..
gulp bundle
cd src/
python -m SimpleHTTPServer

这是应用程序的要点： index.ts

/// <reference path="../typings/tsd.d.ts" />
/// <reference path="../typings/typescriptApp.d.ts" />

import * as angular from 'angular';

import {ExampleCtrl} from './controllers/ExampleCtrl';
import {ExampleTwoCtrl} from './controllers/ExampleTwoCtrl';

export var app = angular.module("myApp", []);

app.controller("ExampleCtrl", ExampleCtrl);
app.controller("ExampleTwoCtrl", ExampleTwoCtrl);

ExampleCtrl.ts

/// <reference path="../../typings/tsd.d.ts" />
/// <reference path="../../typings/typescriptApp.d.ts" />


export class ExampleCtrl {
    public static $inject:Array<string> = [];

    constructor() {

    }

    public name:string;
    public hello_world:string;

    public say_hello() {
        console.log('greeting');

        this.hello_world = "Hello, " + this.name + "!";
    }
}

ExampleTwoCtrl.ts

/// <reference path="../../typings/tsd.d.ts" />
/// <reference path="../../typings/typescriptApp.d.ts" />

export class ExampleTwoCtrl {
    public static $inject:Array<string> = [];

    constructor() {

    }

    public name:string;
    public text:string;

    public second() {
        this.text = "ExampleTwoCtrl: " +  this.name;
    }
}

如上所述，这一切都很好。但我们宁愿将所有东西都放在这样的命名空间下：

module myApp.controllers {
    export class ExampleController {
        ...
    }
}
//do we need to export something here?

然后像这样使用它：

这将在运行 gulp bundle 任务时正确编译，但在浏览器中出现错误 /// ///

import * as angular from 'angular';

import ExampleCtrl = myApp.controllers.ExampleCtrl;
import ExampleTwoCtrl = myApp.controllers.ExampleTwoCtrl;

export var app = angular.module("myApp", []);

app.controller("ExampleCtrl", ExampleCtrl);
app.controller("ExampleTwoCtrl", ExampleTwoCtrl);

浏览器错误：

Uncaught ReferenceError: myApp is not defined(anonymous function) @ build.js:5u @ build.js:1i @ build.js:1c @ build.js:1(anonymous function) @ build.js:1(anonymous function) @ build.js:1
build.js:1 Uncaught Error: [$injector:modulerr] Failed to instantiate module myApp due to:
Error: [$injector:nomod] Module 'myApp' is not available! You either misspelled the module name or forgot to load it. If registering a module ensure that you specify the dependencies as the second argument.
http://errors.angularjs.org/1.3.15/$injector/nomod?p0=myApp
    at http://localhost:8000/build/build.js:1:4007
    at http://localhost:8000/build/build.js:1:12353
    at e (http://localhost:8000/build/build.js:1:11925)
    at t.register.e (http://localhost:8000/build/build.js:1:12237)
    at http://localhost:8000/build/build.js:1:20741
    at o (http://localhost:8000/build/build.js:1:4392)
    at p (http://localhost:8000/build/build.js:1:20519)
    at Bt (http://localhost:8000/build/build.js:1:22209)
    at t.register.s (http://localhost:8000/build/build.js:1:10038)
    at Q (http://localhost:8000/build/build.js:1:10348)
http://errors.angularjs.org/1.3.15/$injector/modulerr?p0=myApp&p1=Error%3A%…0%20at%20Q%20(http%3A%2F%2Flocalhost%3A8000%2Fbuild%2Fbuild.js%3A1%3A10348)

Answer 1

根据typescript documentation，编译到commonjs时不需要使用内部模块。如前所述：

TypeScript 中外部模块的一个关键特性是两个不同的 外部模块永远不会为同一范围贡献名称。 因为外部模块的使用者决定分配什么名称 它，无需主动将导出的符号包装在 命名空间。

我发现将 typescript 与 commonjs 加载器（我正在使用 browserify）一起使用的最佳方法是执行以下操作：

class ExampleTwoCtrl {
    public static $inject:Array<string> = [];

    constructor() {

    }

    public name:string;
    public text:string;

    public second() {
        this.text = "ExampleTwoCtrl: " +  this.name;
    }
}

export = ExampleTwoCtrl

并像这样使用它：

import MyController = require('./ExampleTwoCtrl');
var a = new MyController();

话虽如此，我从John Papa's talk at AngularU 观看了录音，他们演示了一些使用 typescript 编写的 systemjs 捆绑的代码，没有任何导入，只是内部 ts 模块。我在推特上询问了哪里可以找到示例代码，但还没有得到回复。