Example of defining your own decorator macro using https://pzuraq.github.io/macro-decorators

yapp-ember-kit_addon_macro-decorators.js

import { reads }, macro from 'macro-decorators';


/* Usage:
 *
 * import { hasEnabledFeature } from 'yapp-ember-kit/macro-decorators';
 *
 * @reads('yappService.model') yapp;
 * @hasEnabledFeature('teleportation') canTeleport;
 */ 
export function hasEnabledFeature(featureName, yappProperty='yapp') {
  return macro({
    get() {
      let yapp = this[yappProperty];
      return yapp && yapp.hasEnabledFeature(featureName);
    }
  });
}