Daniel Mazza

This is yet the best hack I found…

function A () { // context container

	var privateA = 'XYZ';

	function B () {

		var privateB = 'xyz';

		this.v1 = 1;
		this.v2 = 'b';
		this.f1 = function () { return privateA; };
		this.f2 = function () { return privateB; };
	}

	var newB = new B();

	for (i in newB) arguments.callee[i] = newB[i]; // copy B methods to A

	return arguments.callee;
};
A(); // initialize

A.v1;   //=> 1
A.v2;   //=> "b"
A.f1(); //=> "XYZ"
A.f2(); //=> "xyz"

A.v1;     //=> 1
A.prototype.v1 = 2; // no effect
A.v1;     //=> 1
A.v1 = 2; // A.v1 changed...
A.v1;     //=> 2
A();      // regenerate...
A.v1;     //=> 1 // original content

A.v3 = 'whatever';
A();
A.v3 //=> "whatever"

A.f1(); //=> "XYZ"
A.f1 = function () { return 'Oh, no! The public function is lost...' };
A.f1(); //=> "Oh, no! The public function is lost..."
A();    // come on, baby
A.f1(); //=> "XYZ" //  

Have fun