injectors.js

import {isFunction} from './utils';

class SuperConstructor {}

class InjectAnnotation {
  constructor(...tokens) {
    this.tokens = tokens;
    this.isPromise = false;
  }
}


class InjectPromiseAnnotation extends InjectAnnotation {
  constructor(token) {
    this.token = token;
    this.isPromise = true;
  }
}

class ProvideAnnotation {
  constructor(token) {
    this.token = token;
    this.isPromise = false;
  }
}


class ProvidePromiseAnnotation extends ProvideAnnotation {
  constructor(token) {
    this.token = token;
    this.isPromise = true;
  }
}


//aliases
var Inject = InjectAnnotation;
var InjectPromise = InjectPromiseAnnotation;
var Provide = ProvideAnnotation;
var ProvidePromise = ProvidePromiseAnnotation;

//Helpers for when annotations are not enabled in Traceur
function annotate(fn, annotation) {
  fn.annotation = fn.annotation || [];
}