Update reader.

DataUtils/Enumerable.cs

@@ -0,0 +1,159 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace DataUtils
+{
+	[ComVisible (true)]
+	[InterfaceType (ComInterfaceType.InterfaceIsDual)]
+	public interface _I_Enumerable
+	{
+		int Length { get; set; }
+		object this [int index] { get; set; }
+		void Add (object value);        // push
+		void Push (object value);
+		object Pop ();                  // 删除并返回末尾元素
+		object Shift ();                // 删除并返回开头元素
+		void Unshift (object value);    // 在开头插入
+		void RemoveAt (int index);      // 删除任意索引
+		void Clear ();                  // 清空数组
+		_I_Enumerable Slice (int start, int end);                     // 返回子数组
+		void Splice (int start, int deleteCount, object [] items);     // 删除并插入
+		int IndexOf (object value);      // 查找索引
+		bool Includes (object value);    // 是否包含
+		void ForEach (object callback, bool suppressExceptions = false);  // 遍历，callback(item, index)
+		_I_Enumerable Concat (_I_Enumerable other);  // 拼接
+		string Join (string separator);   // 转字符串
+		object GetItem (int index);           // 返回 { key, data } 或直接 data
+		void SetAt (int index, object value); // 替换元素
+		int IndexOfKey (int key);             // 按内部 key 查找
+		void Move (int index, int newIndex);  // 移动元素
+		void PushAll (object [] items);        // 一次性 push 多个
+	}
+	public class _I_List: _I_Enumerable, IList
+	{
+		public _I_List (IEnumerable<object> initArr, bool readOnly = false, bool fixedSize = false, bool sync = true)
+		{
+			_list = initArr?.ToList () ?? new List<object> ();
+			IsFixedSize = fixedSize;
+			IsReadOnly = readOnly;
+			IsSynchronized = sync;
+		}
+		protected List<object> _list;
+		protected object _lock = new object ();
+		public object this [int index] { get { return _list [index]; } set { _list [index] = value; } }
+		public int Count => _list.Count;
+		public bool IsFixedSize { get; }
+		public bool IsReadOnly { get; }
+		public bool IsSynchronized { get; }
+		public int Length
+		{
+			get { return _list.Count; }
+			set
+			{
+				if (!IsFixedSize && !IsReadOnly)
+				{
+					_list.Capacity = value;
+				}
+			}
+		}
+		public object SyncRoot => _lock;
+		public void Add (object value) => _list.Add (value);
+		public void Push (object value) => _list.Add (value);
+		public void RemoveAt (int index) => _list.RemoveAt (index);
+		public void Clear () => _list.Clear ();
+		public int IndexOf (object value) => _list.IndexOf (value);
+		int IList.Add (object value)
+		{
+			_list.Add (value);
+			return _list.Count - 1;
+		}
+		public bool Contains (object value) => _list.Contains (value);
+		public void Insert (int index, object value) => _list.Insert (index, value);
+		public void Remove (object value) => _list.Remove (value);
+		public void ForEach (object callback, bool suppressExceptions = false)
+		{
+			for (int i = 0; i < _list.Count; i++)
+			{
+				var item = _list [i];
+				if (suppressExceptions)
+				{
+					try { JsUtils.Call (callback, item, i); } catch { }
+				}
+				else JsUtils.Call (callback, item, i);
+			}
+		}
+		public IEnumerator GetEnumerator () => _list.GetEnumerator ();
+		public _I_Enumerable Slice (int start, int end)
+		{
+			if (end < 0) end = _list.Count + end;
+			start = Math.Max (0, start);
+			end = Math.Min (_list.Count, end);
+			var arr = _list.GetRange (start, Math.Max (0, end - start));
+			return new _I_List (arr);
+		}
+		public void Splice (int start, int deleteCount, object [] items)
+		{
+			if (start < 0) start = Math.Max (0, _list.Count + start);
+			int count = Math.Min (deleteCount, _list.Count - start);
+			_list.RemoveRange (start, count);
+			if (items != null && items.Length > 0)
+				_list.InsertRange (start, items);
+		}
+		public bool Includes (object value) => _list.Contains (value);
+		public _I_Enumerable Concat (_I_Enumerable other)
+		{
+			var newList = new List<object> (_list);
+			if (other is _I_List)
+                newList.AddRange ((other as _I_List)._list);
+			return new _I_List (newList);
+		}
+		public string Join (string separator)
+		{
+			return string.Join (separator ?? ",", _list.Select (x => x?.ToString () ?? ""));
+		}
+		public object GetItem (int index) => _list [index];
+		public void SetAt (int index, object value) => _list [index] = value;
+		public int IndexOfKey (int key)
+		{
+			return key >= 0 && key < _list.Count ? key : -1;
+		}
+		public void Move (int index, int newIndex)
+		{
+			if (index < 0 || index >= _list.Count || newIndex < 0 || newIndex >= _list.Count) return;
+			var item = _list [index];
+			_list.RemoveAt (index);
+			_list.Insert (newIndex, item);
+		}
+		public void PushAll (object [] items)
+		{
+			if (items == null || items.Length == 0) return;
+			_list.AddRange (items);
+		}
+		public void CopyTo (Array array, int index)
+		{
+			if (array == null) throw new ArgumentNullException (nameof (array));
+			for (int i = 0; i < _list.Count && index + i < array.Length; i++)
+				array.SetValue (_list [i], index + i);
+		}
+		public object Pop ()
+		{
+			if (_list.Count == 0) return null;
+			var last = _list [_list.Count - 1];
+			_list.RemoveAt (_list.Count - 1);
+			return last;
+		}
+		public object Shift ()
+		{
+			if (_list.Count == 0) return null;
+			var first = _list [0];
+			_list.RemoveAt (0);
+			return first;
+		}
+		public void Unshift (object value) => _list.Insert (0, value);
+	}
+}