isolated workers and singletons

isolated.js

/**
 * When you see a `postMessage()` it's clear your passing data into
 * a different module space. This fact can be obfuscated if you
 * use a Singleton.
 *
 */

var {Worker} = require("ringo/worker");

var Foo = function() { return this;}

var FooFactory = function() {
   return (new Foo());
}

var fooFactory = module.singleton('foo', function() {
   return FooFactory;
});

function onmessage(e) {
   print('worker:', fooFactory() instanceof Foo);
}

if (require.main === module) {
   var w = new Worker(module.id);
   w.postMessage('');
}