Move PayloadWriter to its own file.

Author: bgrainger

src/MySqlConnector/Serialization/HandshakeResponse41Packet.cs

@@ -1,8 +1,4 @@
-using System;
-using System.IO;
-using System.Text;
-
-namespace MySql.Data.Serialization
+namespace MySql.Data.Serialization
 {
 	internal sealed class HandshakeResponse41Packet
 	{
@@ -55,60 +51,4 @@ public static byte[] Create(InitialHandshakePacket handshake, ConnectionSettings
 			return writer.ToBytes();
 		}
 	}
-
-	class PayloadWriter
-	{
-		public PayloadWriter()
-		{
-			m_stream = new MemoryStream();
-			m_writer = new BinaryWriter(m_stream);
-		}
-
-		public void WriteByte(byte value) => m_writer.Write(value);
-		public void WriteInt32(int value) => m_writer.Write(value);
-		public void WriteUInt32(uint value) => m_writer.Write(value);
-		public void Write(byte[] value) => m_writer.Write(value);
-		public void Write(ArraySegment<byte> value) => m_writer.Write(value.Array, value.Offset, value.Count);
-
-		public void WriteLengthEncodedInteger(ulong value)
-		{
-			if (value < 251)
-			{
-				m_writer.Write((byte) value);
-			}
-			else if (value < 65536)
-			{
-				m_writer.Write((byte) 0xfc);
-				m_writer.Write((ushort) value);
-			}
-			else if (value < 16777216)
-			{
-				m_writer.Write((byte) 0xfd);
-				m_writer.Write((byte) (value & 0xFF));
-				m_writer.Write((byte) ((value >> 8) & 0xFF));
-				m_writer.Write((byte) ((value >> 16) & 0xFF));
-			}
-			else
-			{
-				m_writer.Write((byte) 0xfe);
-				m_writer.Write(value);
-			}
-		}
-
-		public void WriteNullTerminatedString(string value)
-		{
-			var bytes = Encoding.UTF8.GetBytes(value);
-			m_writer.Write(bytes);
-			m_writer.Write((byte) 0);
-		}
-
-		public byte[] ToBytes()
-		{
-			m_writer.Flush();
-			return m_stream.ToArray();
-		}
-
-		readonly MemoryStream m_stream;
-		readonly BinaryWriter m_writer;
-	}
 }

src/MySqlConnector/Serialization/PayloadWriter.cs

@@ -0,0 +1,62 @@
+using System;
+using System.IO;
+using System.Text;
+
+namespace MySql.Data.Serialization
+{
+	internal sealed class PayloadWriter
+	{
+		public PayloadWriter()
+		{
+			m_stream = new MemoryStream();
+			m_writer = new BinaryWriter(m_stream);
+		}
+
+		public void WriteByte(byte value) => m_writer.Write(value);
+		public void WriteInt32(int value) => m_writer.Write(value);
+		public void WriteUInt32(uint value) => m_writer.Write(value);
+		public void Write(byte[] value) => m_writer.Write(value);
+		public void Write(ArraySegment<byte> value) => m_writer.Write(value.Array, value.Offset, value.Count);
+
+		public void WriteLengthEncodedInteger(ulong value)
+		{
+			if (value < 251)
+			{
+				m_writer.Write((byte) value);
+			}
+			else if (value < 65536)
+			{
+				m_writer.Write((byte) 0xfc);
+				m_writer.Write((ushort) value);
+			}
+			else if (value < 16777216)
+			{
+				m_writer.Write((byte) 0xfd);
+				m_writer.Write((byte) (value & 0xFF));
+				m_writer.Write((byte) ((value >> 8) & 0xFF));
+				m_writer.Write((byte) ((value >> 16) & 0xFF));
+			}
+			else
+			{
+				m_writer.Write((byte) 0xfe);
+				m_writer.Write(value);
+			}
+		}
+
+		public void WriteNullTerminatedString(string value)
+		{
+			var bytes = Encoding.UTF8.GetBytes(value);
+			m_writer.Write(bytes);
+			m_writer.Write((byte) 0);
+		}
+
+		public byte[] ToBytes()
+		{
+			m_writer.Flush();
+			return m_stream.ToArray();
+		}
+
+		readonly MemoryStream m_stream;
+		readonly BinaryWriter m_writer;
+	}
+}