skyquake/plugins/composer/test/helpers/pack/phantomjs-shims.js

   1
   2 /*
   3  *
   4  *   Copyright 2016 RIFT.IO Inc
   5  *
   6  *   Licensed under the Apache License, Version 2.0 (the "License");
   7  *   you may not use this file except in compliance with the License.
   8  *   You may obtain a copy of the License at
   9  *
  10  *       http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  *   Unless required by applicable law or agreed to in writing, software
  13  *   distributed under the License is distributed on an "AS IS" BASIS,
  14  *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  *   See the License for the specific language governing permissions and
  16  *   limitations under the License.
  17  *
  18  */
  19 (function() {
  20
  21 var Ap = Array.prototype;
  22 var slice = Ap.slice;
  23 var Fp = Function.prototype;
  24
  25 if (!Fp.bind) {
  26   // PhantomJS doesn't support Function.prototype.bind natively, so
  27   // polyfill it whenever this module is required.
  28   Fp.bind = function(context) {
  29     var func = this;
  30     var args = slice.call(arguments, 1);
  31
  32     function bound() {
  33       var invokedAsConstructor = func.prototype && (this instanceof func);
  34       return func.apply(
  35         // Ignore the context parameter when invoking the bound function
  36         // as a constructor. Note that this includes not only constructor
  37         // invocations using the new keyword but also calls to base class
  38         // constructors such as BaseClass.call(this, ...) or super(...).
  39         !invokedAsConstructor && context || this,
  40         args.concat(slice.call(arguments))
  41       );
  42     }
  43
  44     // The bound function must share the .prototype of the unbound
  45     // function so that any object created by one constructor will count
  46     // as an instance of both constructors.
  47     bound.prototype = func.prototype;
  48
  49     return bound;
  50   };
  51 }
  52 })();