theZieger / inherits.js

(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.inherits = f()}})(function(){var define,module,exports;module={exports:(exports={})};

/*!

 * inherits.js | v0.2.0 | Easily inherit prototypes.

 * Copyright (c) 2017 Eric Zieger (MIT license)

 * https://github.com/theZieger/inherits.js/blob/master/LICENSE

 *

 * inherit the prototype of the SuperConstructor

 *

 * Warning: Changing the prototype of an object is, by the nature of how

 * modern JavaScript engines optimize property accesses, a very slow

 * operation, in every browser and JavaScript engine. So instead of using

 * Object.setPrototypeOf or messing with __proto__, we create a new object

 * with the desired prototype using Object.create().

 *

 * @see https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Global_Objects/Object/setPrototypeOf

 *

 * @param {Object} Constructor

 * @param {Object} SuperConstructor

 *

 * @throws {TypeError} if arguments are `null`, `undefined`, or

 *                     `SuperConstructor` has no prototype

 *

 * @returns {Void}

 */

module.exports = function(Constructor, SuperConstructor) {

  if (Constructor === undefined || Constructor === null) {

    throw new TypeError('Constructor argument is undefined or null');

  }

  if (SuperConstructor === undefined || SuperConstructor === null) {

    throw new TypeError('SuperConstructor argument is undefined or null');

  }

  if (SuperConstructor.prototype === undefined) {

    throw new TypeError('SuperConstructor.prototype is undefined');

  }

  /**

   * for convenience, `SuperConstructor` will be accessible through the

   * `Constructor.super_` property

   */

  Constructor.super_ = SuperConstructor;

  Constructor.prototype = Object.create(SuperConstructor.prototype);

  Constructor.prototype.constructor = Constructor;

};

return module.exports;});