ruby.js.erb

(function (root) {
  <%= js 'core/js2-boot.js' %>

  var JS2 = root.JS2 = mainFunction;
  var js2 = root.js2 = JS2;
  js2.VERSION = "<%= version %>";

  JS2.ROOT = JS2;
  <%= core %>

  JS2.fs = new JS2.FileSystem(JS2_RUBY_FILE_ADAPTER);
  js2.DECORATOR = new JS2.BrowserDecorator();
  js2.ROOT = root;

  return JS2;
})(this);