ObjC class creation API draft 3

gistfile1.js

const NSObject = ObjC.classes.NSObject;
const NSURLConnectionDataDelegate = ObjC.protocols.NSURLConnectionDataDelegate;
const MyConnectionDelegateProxy = ObjC.registerClass({
  name: 'MyConnectionDelegateProxy',
  super: NSObject,
  protocols: [NSURLConnectionDataDelegate],
  methods: {
    '- init': function () {
      console.log('- init');
      const self = this.super.init();
      if (self !== null) {
        ObjC.bind(self, {
          foo: 1234
        });
      }
      return self;
    },
    '- dealloc': function () {
      console.log('- dealloc');
      ObjC.unbind(this.self);
      this.super.dealloc();
    },
    '- connection:didReceiveResponse:': function (connection, response) {
      console.log('- connection:didReceiveResponse:');
      console.log(connection);
      console.log(response);
      /* this.data.foo === 1234 */
    },
    /*
     * But those previous methods are declared assuming that either the
     * super-class or a protocol we conform to has the same method so we
     * can grab its type information. However if that's not the case,
     * you would write it like this:
     */
    '- connection:didReceiveResponse:': {
      retType: 'void',
      argTypes: ['object', 'object'],
      implementation: function (connection, response) {
      }
    },
    /* Or even more verbosely (not recommended as it's hard to do this portably): */
    '- connection:didReceiveResponse:': {
      types: 'v32@0:8@16@24',
      implementation: function (connection, response) {
      }
    }
  }
});

const proxy = MyConnectionDelegateProxy.alloc().init();
/* use `proxy`, and later: */
proxy.release();