AjErl.Language.List.ToString C# (CSharp) Метод

        public override string ToString()
        {
            StringBuilder builder = new StringBuilder();
            builder.Append("[");

            builder.Append(Machine.ToString(this.head));

            object rest = this.tail;

            while (rest is List)
            {
                builder.Append(",");
                List list = (List)rest;
                builder.Append(Machine.ToString(list.Head));
                rest = list.tail;
            }

            if (rest != null)
            {
                builder.Append("|");
                builder.Append(Machine.ToString(rest));
            }

            builder.Append("]");

            return builder.ToString();
        }

        public void SimpleListWithTwoElementsAndTailToString()
        {
            List list = new List(1, new List(2, 3));

            Assert.AreEqual("[1,2|3]", list.ToString());
        }