Component Initialization Infinite Loop - Angular 2 JSPM

Question

Here is the full error.

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">

Here is my source file.

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);

Its reinstatiating TodoCmpTest over and over again.

If you swap these two lines it works, but doesn't load TodoCmpTest. directives: [TodoCmpTest] // directives: []

You can reproduce this error by doing the following...

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

It seems it's an angular 2 problem in the beta 1, I tried your repo with angular 2 beta 0 and it worked fine, no loop. I suggest you stick with beta 0, until they fix it. I don't know jspm, so here is what i did to test it: (not everything here might be needed but just editing package.json -> removing -> and reinstalling kept installing me the angular beta 1 version)

edited the package.json angular2 dependency to:

"jspm": {
    "dependencies": {
      "angular2": "npm:[email protected]",
      "reflect-metadata": "npm:reflect-metadata@^0.1.3"
    },

then i run

rm -rf jspm_packages/npm/[email protected]
jspm install npm:[email protected]  
npm start