qunit-mojo.shimBind.js Maven / Gradle / Ivy
/*global define */
define([], function() {
var Ap = Array.prototype,
slice = Ap.slice,
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,
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;
};
}
});