--- /dev/null
+
+/*
+ *
+ * Copyright 2016 RIFT.IO Inc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+(function() {
+
+var Ap = Array.prototype;
+var slice = Ap.slice;
+var Fp = Function.prototype;
+
+if (!Fp.bind) {
+ // PhantomJS doesn't support Function.prototype.bind natively, so
+ // polyfill it whenever this module is required.
+ Fp.bind = function(context) {
+ var func = this;
+ var args = slice.call(arguments, 1);
+
+ function bound() {
+ var invokedAsConstructor = func.prototype && (this instanceof func);
+ return func.apply(
+ // Ignore the context parameter when invoking the bound function
+ // as a constructor. Note that this includes not only constructor
+ // invocations using the new keyword but also calls to base class
+ // constructors such as BaseClass.call(this, ...) or super(...).
+ !invokedAsConstructor && context || this,
+ args.concat(slice.call(arguments))
+ );
+ }
+
+ // The bound function must share the .prototype of the unbound
+ // function so that any object created by one constructor will count
+ // as an instance of both constructors.
+ bound.prototype = func.prototype;
+
+ return bound;
+ };
+}
+})();