javascript-decorators/lib/@abstract.js

Decorator Helpers

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * Decorator that makes a class abstract
 * ( it cannot being instantiated directly )
 *
 * @method _abstract
 *
 * @return { Class }  decorator function
 */
var _abstract = exports._abstract = function abstract() {
  return function abstractTarget(target) {
    return function (_target) {
      _inherits(Abstract, _target);

      function Abstract() {
        _classCallCheck(this, Abstract);

        var _this = _possibleConstructorReturn(this, (Abstract.__proto__ || Object.getPrototypeOf(Abstract)).call(this));

        if (new.target === Abstract) {
          throw Error("The " + target.name + " is an abstract class");
        }
        return _this;
      }

      return Abstract;
    }(target);
  };
};