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Tools/ConfigBuilder/NBConfigBuilder/Core/Pool.cs

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+namespace NBConfigBuilder;
+
+/// <summary>
+/// 静态的对象池系统，不支持多线程。
+/// </summary>
+/// <typeparam name="T"></typeparam>
+public static class Pool<T> where T : IPool, new()
+{
+    private static readonly Queue<T> PoolQueue = new Queue<T>();
+
+    /// <summary>
+    /// 池子里可用的数量
+    /// </summary>
+    public static int Count => PoolQueue.Count;
+
+    /// <summary>
+    /// 租借
+    /// </summary>
+    /// <returns></returns>
+    public static T Rent()
+    {
+        return PoolQueue.Count == 0 ? new T() : PoolQueue.Dequeue();
+    }
+
+    /// <summary>
+    /// 租借
+    /// </summary>
+    /// <param name="generator">如果池子里没有，会先执行这个委托。</param>
+    /// <returns></returns>
+    public static T Rent(Func<T> generator)
+    {
+        return PoolQueue.Count == 0 ? generator() : PoolQueue.Dequeue();
+    }
+
+    /// <summary>
+    /// 返还
+    /// </summary>
+    /// <param name="t"></param>
+    public static void Return(T t)
+    {
+        if (t == null)
+        {
+            return;
+        }
+
+        PoolQueue.Enqueue(t);
+    }
+
+    /// <summary>
+    /// 返还
+    /// </summary>
+    /// <param name="t">返还的东西</param>
+    /// <param name="reset">返还后执行的委托</param>
+    public static void Return(T t, Action<T> reset)
+    {
+        if (t == null)
+        {
+            return;
+        }
+
+        reset(t);
+        PoolQueue.Enqueue(t);
+    }
+
+    /// <summary>
+    /// 清空池子
+    /// </summary>
+    public static void Clear()
+    {
+        PoolQueue.Clear();
+    }
+}