gistfile1.js

function sayExt(obj){
  return obj.say();
}

Zoo = Context(function(player){
	Lion = Role({
		say : function(){ return 'meow'; }
	});

	function sayInt(obj){
		return obj.say();
	}

	lion = player.as(Lion);
	return function(){
		// what should be the expected output for these
		log( sayExt(lion) ); // ??? meow or hmmm
		log( sayInt(lion) ); // ??? meow
		log( lion.toString() ); // meow
	};
});

player = {say : function(){ return 'hmmm'; }};
zoo = Zoo(player);
zoo();