组件初始化无限循环 - Angular 2 JSPM

Question

这是完整的错误.

RangeError: Maximum call stack size exceeded
at Injector._instantiate (http://localhost:8000/build.js:36366:63)
at Injector._instantiateProvider (http://localhost:8000/build.js:36244:23)
at Injector._new (http://localhost:8000/build.js:36234:21)
at InjectorInlineStrategy.instantiateProvider (http://localhost:8000/build.js:35998:30)
at ElementDirectiveInlineStrategy.init (http://localhost:8000/build.js:35106:20)
at new AppElement (http://localhost:8000/build.js:34800:24)
at viewFactory_constructor0 (viewFactory_constructor:74:26)
at viewFactory_constructor0 (viewFactory_constructor:76:1)
at viewFactory_constructor0 (viewFactory_constructor:76:1)
at viewFactory_constructor0 (viewFactory_constructor:76:1) <app id="NG2_UPGRADE_0_app_c0">

这是我的源文件.

import 'reflect-metadata'

import {Component} from 'angular2/core';
import {bootstrap} from 'angular2/platform/browser'

console.log('Files have started being compiled and infinite loop has begun');

var TodoCmpTest = 
Component({
  selector: 'todo-cmp'
})
.View({
  template: `<h1>TodoCmpTest</h1>`
})
.Class({
  constructor: function(){
    console.log('hello');
  }
});


var AppComponent = 
Component({
  selector: 'app',
})
.View({
  template: `
  <div>
  <h1> Hello World </h1>
  <todo-cmp></todo-cmp>
  </div>
  `,
  directives: [TodoCmpTest]
// directives: []
})
.Class({
  constructor: function () {}
});  

bootstrap(AppComponent);

它一遍又一遍地重新安装TodoCmpTest.

如果你交换这两行它可以工作,但不加载TodoCmpTest. directives: [TodoCmpTest] // directives: []

您可以通过执行以下操作重现此错误...

1. git clone https://github.com/danielrasmuson/Angular2HelloWorld-StackOverflow 2. use node v5.4.0 3. jspm install 4. npm install 5. npm start

Answer 1

看来这是 beta 1 中的 Angular 2 问题，我用 Angular 2 beta 0 尝试了你的存储库，它工作得很好，没有循环。我建议你坚持使用 beta 0，直到他们修复它。我不知道 jspm，所以这是我测试它的方法：（可能不需要这里的所有内容，但只需编辑 package.json -> 删除 -> 并重新安装即可继续为我安装 Angular beta 1 版本）

将 package.json angular2 依赖项编辑为：

"jspm": {
    "dependencies": {
      "angular2": "npm:angular2@2.0.0-beta.0",
      "reflect-metadata": "npm:reflect-metadata@^0.1.3"
    },

然后我跑

rm -rf jspm_packages/npm/angular2@2.0.0-beta.1
jspm install npm:angular2@2.0.0-beta.0  
npm start