Jurassic.Library.ObjectInstance.IsPrototypeOf C# (CSharp) Method

        public static bool IsPrototypeOf(ScriptEngine engine, object thisObject, object obj)
        {
            if ((obj is ObjectInstance) == false)
                return false;
            TypeUtilities.VerifyThisObject(engine, thisObject, "isPrototypeOf");
            var obj2 = obj as ObjectInstance;
            while (true)
            {
                obj2 = obj2.Prototype;
                if (obj2 == null)
                    return false;
                if (obj2 == thisObject)
                    return true;
            }
        }