备份CatanBuilding瘦身独立工程

LocalPackages/rtm-sdk-unity-2.7.20/Runtime/Plugins/fpnn/msgpack/MsgUnpacker.cs

@@ -0,0 +1,868 @@
+using System;
+using System.Text;
+using System.Collections.Generic;
+
+namespace com.fpnn.msgpack
+{
+    public static class MsgUnpacker
+    {
+        public static Dictionary<Object, Object> Unpack(byte[] binary)
+        {
+            return Unpack(binary, 0);
+        }
+
+        public static Dictionary<Object, Object> Unpack(byte[] binary, int offset, int length = 0)
+        {
+            SAXInfo info = new SAXInfo(binary)
+            {
+                currIdx = offset
+            };
+
+            int endIndx = info.binary.Length;
+            if (length > 0)
+                endIndx = Math.Min(offset + length, info.binary.Length);
+
+            try
+            {
+                while (endIndx > info.currIdx)
+                {
+                    UnpackNext(info);
+                }
+            }
+            catch (ArgumentOutOfRangeException e)
+            {
+                throw new InvalidDataException("Incomplete msgPack binary data.", e);
+            }
+
+            if (info.GetRootObject() is Dictionary<Object, Object> dict)
+                return dict;
+
+            throw new InvalidDataException("MsgPack binary is not dictionary.");
+        }
+
+        public static Object Unpack(byte[] binary, int offset, out int endOffset)
+        {
+            if (binary == null || binary.Length == 0)
+                throw new InvalidDataException("MsgPack binary is empty.");
+
+            SAXInfo info = new SAXInfo(binary)
+            {
+                currIdx = offset
+            };
+
+            try
+            {
+                UnpackNext(info);
+            }
+            catch (ArgumentOutOfRangeException e)
+            {
+                throw new InvalidDataException("Incomplete msgPack binary data.", e);
+            }
+
+            endOffset = info.currIdx;
+
+            return info.GetRootObject();
+        }
+
+        //------------[ Private Methods ]-----------//
+
+        private class ContainerInfo
+        {
+            private Dictionary<object, object> dict;
+            private List<object> list;
+            private object key;
+            private bool wantKey;
+
+            public ContainerInfo(bool isDictionary, int capacity)
+            {
+                if (isDictionary)
+                {
+                    dict = new Dictionary<object, object>(capacity);
+                    wantKey = true;
+                }
+                else
+                    list = new List<object>(capacity);
+            }
+
+            public Object GetContainer()
+            {
+                if (dict != null)
+                {
+                    if (wantKey == false)
+                        throw new InsufficientException("Invalid msgPack binary: dictionary lost value.");
+                    return dict;
+                }
+                else
+                    return list;
+            }
+
+            public void Add(Object obj)
+            {
+                if (dict != null)
+                {
+                    if (wantKey)
+                    {
+                        key = obj;
+                        wantKey = false;
+                    }
+                    else
+                    {
+                        dict.Add(key, obj);
+                        wantKey = true;
+                        key = null;
+                    }
+                }
+                else
+                {
+                    list.Add(obj);
+                }
+            }
+        }
+
+        private class SAXInfo
+        {
+            private Stack<ContainerInfo> containerStack;
+            private object rootbject;
+            //-- public fields
+            public readonly byte[] binary;
+            public int currIdx;
+
+            public SAXInfo(byte[] binary)
+            {
+                containerStack = new Stack<ContainerInfo>();
+                this.binary = binary;
+                currIdx = 0;
+            }
+
+            public void Add(object obj)
+            {
+                if (containerStack.Count > 0)
+                {
+                    containerStack.Peek().Add(obj);
+                }
+                else if (rootbject == null)
+                {
+                    rootbject = obj;
+                }
+                else
+                    throw new InvalidDataException("MsgPack binary has parallel roots.");
+            }
+
+            public void AddContainer(ContainerInfo container)
+            {
+                Add(container.GetContainer());
+                containerStack.Push(container);
+            }
+
+            public void PopContainer()
+            {
+                containerStack.Pop();
+            }
+
+            public Object GetRootObject()
+            {
+                if (containerStack.Count > 0)
+                    throw new InsufficientException("Invalid msgPack binary: insufficient binary data.");
+
+                return rootbject;
+            }
+        }
+
+        private delegate void UnpackItem(SAXInfo info);
+
+        private static readonly Dictionary<byte, UnpackItem> _unpackDict;
+
+        static MsgUnpacker()
+        {
+            _unpackDict = new Dictionary<byte, UnpackItem>
+            {
+                { 0xc0, UnpackNil },
+                // { 0xc1, UnpackData },    //-- (never used) in msgpack SPEC: https://github.com/msgpack/msgpack/blob/master/spec.md
+                { 0xc2, UnpackFalse },
+                { 0xc3, UnpackTrue },
+
+                { 0xc4, UnpackBin8 },
+                { 0xc5, UnpackBin16 },
+                { 0xc6, UnpackBin32 },
+                { 0xc7, UnpackExt8 },
+
+                { 0xc8, UnpackExt16 },
+                { 0xc9, UnpackExt32 },
+                { 0xca, UnpackFloat32 },
+                { 0xcb, UnpackFloat64 },
+
+                { 0xcc, UnpackUInt8 },
+                { 0xcd, UnpackUInt16 },
+                { 0xce, UnpackUInt32 },
+                { 0xcf, UnpackUInt64 },
+
+                { 0xd0, UnpackInt8 },
+                { 0xd1, UnpackInt16 },
+                { 0xd2, UnpackInt32 },
+                { 0xd3, UnpackInt64 },
+
+                { 0xd4, UnpackFixExt1 },
+                { 0xd5, UnpackFixExt2 },
+                { 0xd6, UnpackFixExt4 },
+                { 0xd7, UnpackFixExt8 },
+
+                { 0xd8, UnpackFixExt16 },
+                { 0xd9, UnpackStr8 },
+                { 0xda, UnpackStr16 },
+                { 0xdb, UnpackStr32 },
+
+                { 0xdc, UnpackArray16 },
+                { 0xdd, UnpackArray32 },
+                { 0xde, UnpackMap16 },
+                { 0xdf, UnpackMap32 },
+            };
+        }
+
+        private static void UnpackNext(SAXInfo info)
+        {
+            byte sign = info.binary[info.currIdx];
+            info.currIdx++;
+
+            if (_unpackDict.TryGetValue(sign, out UnpackItem unpacker))
+            {
+                unpacker(info);
+            }
+            else if (sign <= 0x7f)
+            {
+                UnpackPositiveFixInt(info);
+            }
+            else if (sign <= 0x8f)
+            {
+                UnpackFixMap(info);
+            }
+            else if (sign <= 0x9f)
+            {
+                UnpackFixArray(info);
+            }
+            else if (sign <= 0xbf)
+            {
+                UnpackFixStr(info);
+            }
+            else if (sign <= 0xff)
+            {
+                UnpackNegativeFixInt(info);
+            }
+            else
+            {
+                throw new UnrecognizedDataException("Msgpack first byte: 0x" + sign.ToString("X2"));
+            }
+        }
+
+        //------------[ Delegate Methods ]-----------//
+
+        private static void UnpackNil(SAXInfo info)
+        {
+            info.Add(null);
+        }
+
+        private static void UnpackFalse(SAXInfo info)
+        {
+            info.Add(false);
+        }
+
+        private static void UnpackTrue(SAXInfo info)
+        {
+            info.Add(true);
+        }
+
+        private static void UnpackBin8(SAXInfo info)
+        {
+            byte length = info.binary[info.currIdx];
+            info.currIdx++;
+
+            byte[] data = new byte[length];
+            Array.Copy(info.binary, info.currIdx, data, 0, length);
+            info.currIdx += length;
+
+            info.Add(data);
+        }
+
+        private static void UnpackBin16(SAXInfo info)
+        {
+            ushort length;
+
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[2];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 2);
+                Array.Reverse(lengthBuffer);
+
+                length = BitConverter.ToUInt16(lengthBuffer, 0);
+            }
+            else
+            {
+                length = BitConverter.ToUInt16(info.binary, info.currIdx);
+            }
+            info.currIdx += 2;
+
+
+            byte[] data = new byte[length];
+            Array.Copy(info.binary, info.currIdx, data, 0, length);
+            info.currIdx += length;
+
+            info.Add(data);
+        }
+
+        private static void UnpackBin32(SAXInfo info)
+        {
+            UInt32 length;
+
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[4];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 4);
+                Array.Reverse(lengthBuffer);
+
+                length = BitConverter.ToUInt32(lengthBuffer, 0);
+            }
+            else
+            {
+                length = BitConverter.ToUInt32(info.binary, info.currIdx);
+            }
+            info.currIdx += 4;
+
+
+            byte[] data = new byte[length];
+            Array.Copy(info.binary, info.currIdx, data, 0, length);
+            info.currIdx += (int)length;
+
+            info.Add(data);
+        }
+
+        private static void UnpackExt8(SAXInfo info)
+        {
+            byte length = info.binary[info.currIdx];
+            sbyte type = (sbyte)info.binary[info.currIdx + 1];
+
+            if (length != 12 || type != -1)
+                throw new UnsupportedTypeException("Unsupported msgPack ext8 format. type " + type + ", data length: " + length);
+
+            info.currIdx += 2;
+
+            byte[] secondsBuffer = new byte[8];
+            byte[] nanosecondsBuffer = new byte[4];
+
+            Array.Copy(info.binary, info.currIdx, nanosecondsBuffer, 0, 4);
+            Array.Copy(info.binary, info.currIdx + 4, secondsBuffer, 0, 8);
+            info.currIdx += 12;
+
+            if (BitConverter.IsLittleEndian)
+            {
+                Array.Reverse(secondsBuffer);
+                Array.Reverse(nanosecondsBuffer);
+            }
+
+            UInt32 nanoseconds = BitConverter.ToUInt32(nanosecondsBuffer, 0);
+            Int64 seconds = BitConverter.ToInt64(secondsBuffer, 0);
+
+            DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
+            TimeSpan offset = new TimeSpan(seconds * 1000 * 1000 * 10 + nanoseconds / 100);
+
+            info.Add(origin.Add(offset));
+        }
+
+        private static void UnpackExt16(SAXInfo info)
+        {
+            sbyte type = (sbyte)info.binary[info.currIdx + 2];
+            throw new UnsupportedTypeException("Unsupported msgPack ext16 format. type " + type);
+        }
+
+        private static void UnpackExt32(SAXInfo info)
+        {
+            sbyte type = (sbyte)info.binary[info.currIdx + 4];
+            throw new UnsupportedTypeException("Unsupported msgPack ext32 format. type " + type);
+        }
+
+        private static void UnpackFloat32(SAXInfo info)
+        {
+            //-- float in C# memory already is IEEE 754
+
+            float value;
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[4];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 4);
+                Array.Reverse(lengthBuffer);
+
+                value = BitConverter.ToSingle(lengthBuffer, 0);
+            }
+            else
+            {
+                value = BitConverter.ToSingle(info.binary, info.currIdx);
+            }
+            info.currIdx += 4;
+
+            info.Add(value);
+        }
+
+        private static void UnpackFloat64(SAXInfo info)
+        {
+            //-- float in C# memory already is IEEE 754
+
+            double value;
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[8];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 8);
+                Array.Reverse(lengthBuffer);
+
+                value = BitConverter.ToDouble(lengthBuffer, 0);
+            }
+            else
+            {
+                value = BitConverter.ToDouble(info.binary, info.currIdx);
+            }
+            info.currIdx += 8;
+
+            info.Add(value);
+        }
+
+        private static void UnpackUInt8(SAXInfo info)
+        {
+            byte value = info.binary[info.currIdx];
+            info.currIdx++;
+
+            info.Add(value);
+        }
+
+        private static void UnpackUInt16(SAXInfo info)
+        {
+            ushort value;
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[2];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 2);
+                Array.Reverse(lengthBuffer);
+
+                value = BitConverter.ToUInt16(lengthBuffer, 0);
+            }
+            else
+            {
+                value = BitConverter.ToUInt16(info.binary, info.currIdx);
+            }
+            info.currIdx += 2;
+
+            info.Add(value);
+        }
+
+        private static void UnpackUInt32(SAXInfo info)
+        {
+            UInt32 value;
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[4];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 4);
+                Array.Reverse(lengthBuffer);
+
+                value = BitConverter.ToUInt32(lengthBuffer, 0);
+            }
+            else
+            {
+                value = BitConverter.ToUInt32(info.binary, info.currIdx);
+            }
+            info.currIdx += 4;
+
+            info.Add(value);
+        }
+
+        private static void UnpackUInt64(SAXInfo info)
+        {
+            UInt64 value;
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[8];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 8);
+                Array.Reverse(lengthBuffer);
+
+                value = BitConverter.ToUInt64(lengthBuffer, 0);
+            }
+            else
+            {
+                value = BitConverter.ToUInt64(info.binary, info.currIdx);
+            }
+            info.currIdx += 8;
+
+            info.Add(value);
+        }
+
+        private static void UnpackInt8(SAXInfo info)
+        {
+            sbyte value = (sbyte)info.binary[info.currIdx];
+            info.currIdx++;
+
+            info.Add(value);
+        }
+
+        private static void UnpackInt16(SAXInfo info)
+        {
+            short value;
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[2];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 2);
+                Array.Reverse(lengthBuffer);
+
+                value = BitConverter.ToInt16(lengthBuffer, 0);
+            }
+            else
+            {
+                value = BitConverter.ToInt16(info.binary, info.currIdx);
+            }
+            info.currIdx += 2;
+
+            info.Add(value);
+        }
+
+        private static void UnpackInt32(SAXInfo info)
+        {
+            Int32 value;
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[4];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 4);
+                Array.Reverse(lengthBuffer);
+
+                value = BitConverter.ToInt32(lengthBuffer, 0);
+            }
+            else
+            {
+                value = BitConverter.ToInt32(info.binary, info.currIdx);
+            }
+            info.currIdx += 4;
+
+            info.Add(value);
+        }
+
+        private static void UnpackInt64(SAXInfo info)
+        {
+            Int64 value;
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[8];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 8);
+                Array.Reverse(lengthBuffer);
+
+                value = BitConverter.ToInt64(lengthBuffer, 0);
+            }
+            else
+            {
+                value = BitConverter.ToInt64(info.binary, info.currIdx);
+            }
+            info.currIdx += 8;
+
+            info.Add(value);
+        }
+
+        private static void UnpackFixExt1(SAXInfo info)
+        {
+            sbyte type = (sbyte)info.binary[info.currIdx];
+            throw new UnsupportedTypeException("Unsupported msgPack fix ext 1 format. type " + type);
+        }
+        private static void UnpackFixExt2(SAXInfo info)
+        {
+            sbyte type = (sbyte)info.binary[info.currIdx];
+            throw new UnsupportedTypeException("Unsupported msgPack fix ext 2 format. type " + type);
+        }
+        private static void UnpackFixExt4(SAXInfo info)
+        {
+            sbyte type = (sbyte)info.binary[info.currIdx];
+            if (type != -1)
+                throw new UnsupportedTypeException("Unsupported msgPack fix ext 4 format. type " + type);
+
+            info.currIdx++;
+
+
+            UInt32 seconds;
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[4];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 4);
+                Array.Reverse(lengthBuffer);
+
+                seconds = BitConverter.ToUInt32(lengthBuffer, 0);
+            }
+            else
+            {
+                seconds = BitConverter.ToUInt32(info.binary, info.currIdx);
+            }
+            info.currIdx += 4;
+
+            
+            DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
+            TimeSpan offset = new TimeSpan(seconds * 1000 * 1000 * 10);
+
+            info.Add(origin.Add(offset));
+        }
+        private static void UnpackFixExt8(SAXInfo info)
+        {
+            sbyte type = (sbyte)info.binary[info.currIdx];
+            if (type != -1)
+                throw new UnsupportedTypeException("Unsupported msgPack fix ext 8 format. type " + type);
+
+            info.currIdx++;
+
+
+            UInt64 timeValue;
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[8];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 8);
+                Array.Reverse(lengthBuffer);
+
+                timeValue = BitConverter.ToUInt64(lengthBuffer, 0);
+            }
+            else
+            {
+                timeValue = BitConverter.ToUInt64(info.binary, info.currIdx);
+            }
+            info.currIdx += 8;
+
+
+            UInt32 nanoseconds = (UInt32)(timeValue >> 34);
+            Int64 seconds = (Int64)(timeValue & 0x00000003FFFFFFFF);
+            
+            DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
+            TimeSpan offset = new TimeSpan(seconds * 1000 * 1000 * 10 + nanoseconds / 100);
+
+            info.Add(origin.Add(offset));
+        }
+        private static void UnpackFixExt16(SAXInfo info)
+        {
+            sbyte type = (sbyte)info.binary[info.currIdx];
+            throw new UnsupportedTypeException("Unsupported msgPack fix ext 16 format. type " + type);
+        }
+
+        private static void UnpackString(SAXInfo info, int length)
+        {
+            UTF8Encoding utf8Encoding = new UTF8Encoding(false, true);     //-- NO BOM.
+            try
+            {
+                string str = utf8Encoding.GetString(info.binary, info.currIdx, length);
+                info.currIdx += length;
+                info.Add(str);
+                return;
+            }
+            catch (ArgumentNullException ex)
+            {
+                throw ex;
+            }
+            catch (ArgumentOutOfRangeException ex)
+            {
+                throw ex;
+            }
+            catch (DecoderFallbackException)
+            {
+                //-- Do nothing, through the cache block.
+            }
+            catch (ArgumentException)
+            {
+                //-- Do nothing, through the cache block.
+            }
+
+            byte[] data = new byte[length];
+            Array.Copy(info.binary, info.currIdx, data, 0, length);
+            info.currIdx += length;
+            info.Add(data);
+        }
+        private static void UnpackStr8(SAXInfo info)
+        {
+            byte length = info.binary[info.currIdx];
+            info.currIdx++;
+
+            UnpackString(info, length);
+        }
+        private static void UnpackStr16(SAXInfo info)
+        {
+            ushort length;
+
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[2];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 2);
+                Array.Reverse(lengthBuffer);
+
+                length = BitConverter.ToUInt16(lengthBuffer, 0);
+            }
+            else
+            {
+                length = BitConverter.ToUInt16(info.binary, info.currIdx);
+            }
+            info.currIdx += 2;
+
+            UnpackString(info, length);
+        }
+        private static void UnpackStr32(SAXInfo info)
+        {
+            UInt32 length;
+
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[4];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 4);
+                Array.Reverse(lengthBuffer);
+
+                length = BitConverter.ToUInt32(lengthBuffer, 0);
+            }
+            else
+            {
+                length = BitConverter.ToUInt32(info.binary, info.currIdx);
+            }
+            info.currIdx += 4;
+
+            UnpackString(info, (int)length);
+        }
+        private static void UnpackArray16(SAXInfo info)
+        {
+            ushort length;
+
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[2];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 2);
+                Array.Reverse(lengthBuffer);
+
+                length = BitConverter.ToUInt16(lengthBuffer, 0);
+            }
+            else
+            {
+                length = BitConverter.ToUInt16(info.binary, info.currIdx);
+            }
+            info.currIdx += 2;
+
+            ContainerInfo container = new ContainerInfo(false, (int)length);
+            info.AddContainer(container);
+
+            for (ushort i = 0; i < length; i++)
+                UnpackNext(info);
+
+            info.PopContainer();
+        }
+        private static void UnpackArray32(SAXInfo info)
+        {
+            UInt32 length;
+
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[4];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 4);
+                Array.Reverse(lengthBuffer);
+
+                length = BitConverter.ToUInt32(lengthBuffer, 0);
+            }
+            else
+            {
+                length = BitConverter.ToUInt32(info.binary, info.currIdx);
+            }
+            info.currIdx += 4;
+
+            ContainerInfo container = new ContainerInfo(false, (int)length);
+            info.AddContainer(container);
+
+            for (UInt32 i = 0; i < length; i++)
+                UnpackNext(info);
+
+            info.PopContainer();
+        }
+
+        private static void UnpackMap16(SAXInfo info)
+        {
+            ushort length;
+
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[2];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 2);
+                Array.Reverse(lengthBuffer);
+
+                length = BitConverter.ToUInt16(lengthBuffer, 0);
+            }
+            else
+            {
+                length = BitConverter.ToUInt16(info.binary, info.currIdx);
+            }
+            info.currIdx += 2;
+
+            ContainerInfo container = new ContainerInfo(true, (int)length);
+            info.AddContainer(container);
+
+            for (UInt32 i = 0; i < length * 2; i++)
+                UnpackNext(info);
+
+            info.PopContainer();
+        }
+        private static void UnpackMap32(SAXInfo info)
+        {
+            UInt32 length;
+
+            if (BitConverter.IsLittleEndian)
+            {
+                byte[] lengthBuffer = new byte[4];
+                Array.Copy(info.binary, info.currIdx, lengthBuffer, 0, 4);
+                Array.Reverse(lengthBuffer);
+
+                length = BitConverter.ToUInt32(lengthBuffer, 0);
+            }
+            else
+            {
+                length = BitConverter.ToUInt32(info.binary, info.currIdx);
+            }
+            info.currIdx += 4;
+
+            ContainerInfo container = new ContainerInfo(true, (int)length);
+            info.AddContainer(container);
+
+            for (UInt32 i = 0; i < length * 2; i++)
+                UnpackNext(info);
+
+            info.PopContainer();
+        }
+        private static void UnpackPositiveFixInt(SAXInfo info)
+        {
+            sbyte value = (sbyte)info.binary[info.currIdx - 1];
+            info.Add(value);
+        }
+        private static void UnpackFixMap(SAXInfo info)
+        {
+            byte length = info.binary[info.currIdx - 1];
+            length &= 0x0F;
+
+            ContainerInfo container = new ContainerInfo(true, (int)length);
+            info.AddContainer(container);
+
+            for (ushort i = 0; i < length * 2; i++)
+                UnpackNext(info);
+
+            info.PopContainer();
+        }
+        private static void UnpackFixArray(SAXInfo info)
+        {
+            byte length = info.binary[info.currIdx - 1];
+            length &= 0x0F;
+
+            ContainerInfo container = new ContainerInfo(false, (int)length);
+            info.AddContainer(container);
+
+            for (byte i = 0; i < length; i++)
+                UnpackNext(info);
+
+            info.PopContainer();
+        }
+        private static void UnpackFixStr(SAXInfo info)
+        {
+            byte length = info.binary[info.currIdx - 1];
+            length &= 0x1F;
+
+            UnpackString(info, length);
+        }
+        private static void UnpackNegativeFixInt(SAXInfo info)
+        {
+            byte value = info.binary[info.currIdx - 1];
+            info.Add(value);
+        }
+    }
+}