[kobezzza]

o={a: 1}
a=Object.create(o)
alert(a.a)
alert(eval((a.toSource()).a))
alert(eval(a.toSource()).a)
alert(eval(a.toSource())===a)

(function () {
	var toSource = Object.prototype.toSource;

	Object.defineProperty(Object.prototype, 'toSource', {
		 writable: true,
		 configurable: true,
		 enumerable: false,
		 value: function () {
			var clone = {};
			
			for (var key in this) {
				clone[key] = this[key];
			}
			
			return toSource.call(clone);
		}
	});
})();

var a = {a: 1};
var b = {
	__proto__: a, 
	c: 1,
};

alert(eval(b.toSource()).a);