/// <summary>
/// Writes a String value to the stream.
/// </summary>
public void WriteString(string value)
{
if (value == null)
{
writer.Write((byte)DataKind.Null);
}
else
{
int id;
if (dataMap.TryGetId(value, out id))
{
if (id <= byte.MaxValue)
{
writer.Write((byte)DataKind.StringRef_B);
writer.Write((byte)id);
}
else if (id <= ushort.MaxValue)
{
writer.Write((byte)DataKind.StringRef_S);
writer.Write((ushort)id);
}
else
{
writer.Write((byte)DataKind.StringRef);
writer.Write(id);
}
}
else
{
dataMap.Add(value);
writer.Write((byte)DataKind.String);
writer.Write(value);
}
}
}
/// <summary>
/// Writes a String value to the stream.
/// </summary>
public unsafe void WriteString(string value)
{
if (value == null)
{
writer.Write((byte)DataKind.Null);
}
else
{
int id;
if (dataMap.TryGetId(value, out id))
{
Debug.Assert(id >= 0);
if (id <= byte.MaxValue)
{
writer.Write((byte)DataKind.StringRef_B);
writer.Write((byte)id);
}
else if (id <= ushort.MaxValue)
{
writer.Write((byte)DataKind.StringRef_S);
writer.Write((ushort)id);
}
else
{
writer.Write((byte)DataKind.StringRef);
writer.Write(id);
}
}
else
{
dataMap.Add(value);
if (value.IsValidUnicodeString())
{
// Usual case - the string can be encoded as UTF8:
// We can use the UTF8 encoding of the binary writer.
writer.Write((byte)DataKind.StringUtf8);
writer.Write(value);
}
else
{
writer.Write((byte)DataKind.StringUtf16);
// This is rare, just allocate UTF16 bytes for simplicity.
byte[] bytes = new byte[(uint)value.Length * sizeof(char)];
fixed(char *valuePtr = value)
{
Marshal.Copy((IntPtr)valuePtr, bytes, 0, bytes.Length);
}
WriteCompressedUInt((uint)value.Length);
writer.Write(bytes);
}
}
}
}
public bool TryGetId(object value, out int id)
{
if (_baseData != null && _baseData.TryGetId(value, out id))
{
return(true);
}
return(_valueToIdMap.TryGetValue(value, out id));
}
