// Copyright 2025 International Digital Economy Academy
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

///| XOR链表节点结构
pub(all) struct Node[A] {
  mut value : A
  mut link : Int // 存储前驱节点ID与后继节点ID的异或值
} derive(Eq)

// 简化的设计 - 只使用NonEmptyList

///|
pub(all) struct T[A] {
  mut head : Int
  mut tail : Int
  mut nodes : Array[Node[A]?]
  mut free_ids : Array[Int]
  mut size : Int
} derive(Eq)