ObjC class creation API draft 2

gistfile1.js

const NSAutoreleasePool = ObjC.classes.NSAutoreleasePool;
const pool = NSAutoreleasePool.alloc().init();

const NSObject = ObjC.classes.NSObject;
const NSURLConnectionDataDelegate = ObjC.protocols.NSURLConnectionDataDelegate;
const MyConnectionDelegateProxy = ObjC.registerClass({
    name: 'MyConnectionDelegateProxy',
    parent: NSObject,
    protocols: [NSURLConnectionDataDelegate],
    overrides: {
        '- init': function () {
            const self = this.super.init();
            if (self !== null) {
                ObjC.bind(self, {
                    foo: 1234
                });
            }
            return self;
        },
        '- dealloc': function () {
            ObjC.unbind(this.self);
            this.super.dealloc();
        },
        '- connection:didReceiveResponse:': function (connection, response) {
            /* this.data contains `foo` with a value of 1234 */
        }
    }
});
const proxy = MyConnectionDelegateProxy.alloc().init();

pool.release();