Can I use angular/di.js with an AngulrJS 1.3.0 project?

Maybe don't use di.js but instead transpile similarly styled code into valid angular 1.X syntax (during a build step)

A small example and a possible start:

var falafel = require('falafel');var traceur = require('traceur');var src =    '@Inject(MyService,MyOtherService)' +  'class Thing{' +  '  constructor(service,otherservice){' +  '  }' +  '}';src = traceur.compile(src, { annotations: true });//console.log(src);function tryGetPath(obj, path) {  path.split('.').forEach(function(key) {    obj = obj && obj[key];  });  return obj;}var output = falafel(src, function(node) {  //find `Object.defineProperty for 'annotations'`  if (node.type === 'CallExpression' && tryGetPath(node, 'arguments.1.value') === 'annotations') {    var injectable = tryGetPath(node, 'arguments.0.name');    var $inject = (tryGetPath(node, 'arguments.2.properties.0.value.body.body.0.argument.elements') || [])                       .filter(function(a){return a.callee.name === 'Inject'})                         .reduce(function(p,c){ p.push.apply(p,c.arguments); return p;},[])                       .map(function(a){return "'"+a.name+"'";});    node.update(injectable + '.$inject = [' + $inject.toString() + '];');  }});console.log(output);

Perhaps you can even use certain attributes (eg @NgController etc) to register it on your module as a controller.