public Double ToDouble()
{
ValueHandleType type = _type;
if (type == ValueHandleType.Double)
{
return(GetDouble());
}
if (type == ValueHandleType.Single)
{
return(GetSingle());
}
if (type == ValueHandleType.Zero)
{
return(0);
}
if (type == ValueHandleType.One)
{
return(1);
}
if (type == ValueHandleType.Int8)
{
return(GetInt8());
}
if (type == ValueHandleType.Int16)
{
return(GetInt16());
}
if (type == ValueHandleType.Int32)
{
return(GetInt32());
}
if (type == ValueHandleType.UTF8)
{
return(XmlConverter.ToDouble(_bufferReader.Buffer, _offset, _length));
}
return(XmlConverter.ToDouble(GetString()));
}
public Single ToSingle()
{
ValueHandleType type = _type;
if (type == ValueHandleType.Single)
{
return(GetSingle());
}
if (type == ValueHandleType.Double)
{
double value = GetDouble();
if ((value >= Single.MinValue && value <= Single.MaxValue) || double.IsInfinity(value) || double.IsNaN(value))
{
return((Single)value);
}
}
if (type == ValueHandleType.Zero)
{
return(0);
}
if (type == ValueHandleType.One)
{
return(1);
}
if (type == ValueHandleType.Int8)
{
return(GetInt8());
}
if (type == ValueHandleType.Int16)
{
return(GetInt16());
}
if (type == ValueHandleType.UTF8)
{
return(XmlConverter.ToSingle(_bufferReader.Buffer, _offset, _length));
}
return(XmlConverter.ToSingle(GetString()));
}
public bool IsWhitespace()
{
switch (_type)
{
case ValueHandleType.UTF8:
return(_bufferReader.IsWhitespaceUTF8(_offset, _length));
case ValueHandleType.Dictionary:
return(_bufferReader.IsWhitespaceKey(_offset));
case ValueHandleType.Char:
int ch = GetChar();
if (ch > char.MaxValue)
{
return(false);
}
return(XmlConverter.IsWhitespace((char)ch));
case ValueHandleType.EscapedUTF8:
return(_bufferReader.IsWhitespaceUTF8(_offset, _length));
case ValueHandleType.Unicode:
return(_bufferReader.IsWhitespaceUnicode(_offset, _length));
case ValueHandleType.True:
case ValueHandleType.False:
case ValueHandleType.Zero:
case ValueHandleType.One:
return(false);
case ValueHandleType.ConstString:
return(s_constStrings[_offset].Length == 0);
default:
return(_length == 0);
}
}
public string GetUnicodeString(int offset, int length)
{
return(XmlConverter.ToStringUnicode(_buffer, offset, length));
}
unsafe public bool Equals2(int offset1, int length1, string s2)
{
int byteLength = length1;
int charLength = s2.Length;
// N unicode chars will be represented in at least N bytes, but
// no more than N * 3 bytes. If the byte count falls outside of this
// range, then the strings cannot be equal.
if (byteLength < charLength || byteLength > charLength * maxBytesPerChar)
{
return(false);
}
byte[] buffer = _buffer;
if (length1 < 8)
{
int length = Math.Min(byteLength, charLength);
int offset = offset1;
for (int i = 0; i < length; i++)
{
byte b = buffer[offset + i];
if (b >= 0x80)
{
return(XmlConverter.ToString(buffer, offset1, length1) == s2);
}
if (s2[i] != (char)b)
{
return(false);
}
}
return(byteLength == charLength);
}
else
{
int length = Math.Min(byteLength, charLength);
fixed(byte *_pb = &buffer[offset1])
{
byte *pb = _pb;
byte *pbMax = pb + length;
fixed(char *_pch = s2)
{
char *pch = _pch;
// Try to do the fast comparison in ascii space
int t = 0;
while (pb < pbMax && *pb < 0x80)
{
t = *pb - (byte)*pch;
// The code generated is better if we break out then return
if (t != 0)
{
break;
}
pb++;
pch++;
}
if (t != 0)
{
return(false);
}
if (pb == pbMax)
{
return(byteLength == charLength);
}
}
}
return(XmlConverter.ToString(buffer, offset1, length1) == s2);
}
}
public string GetString()
{
ValueHandleType type = _type;
if (type == ValueHandleType.UTF8)
{
return(GetCharsText());
}
switch (type)
{
case ValueHandleType.False:
return("false");
case ValueHandleType.True:
return("true");
case ValueHandleType.Zero:
return("0");
case ValueHandleType.One:
return("1");
case ValueHandleType.Int8:
case ValueHandleType.Int16:
case ValueHandleType.Int32:
return(XmlConverter.ToString(ToInt()));
case ValueHandleType.Int64:
return(XmlConverter.ToString(GetInt64()));
case ValueHandleType.UInt64:
return(XmlConverter.ToString(GetUInt64()));
case ValueHandleType.Single:
return(XmlConverter.ToString(GetSingle()));
case ValueHandleType.Double:
return(XmlConverter.ToString(GetDouble()));
case ValueHandleType.Decimal:
return(XmlConverter.ToString(GetDecimal()));
case ValueHandleType.DateTime:
return(XmlConverter.ToString(ToDateTime()));
case ValueHandleType.Empty:
return(string.Empty);
case ValueHandleType.UTF8:
return(GetCharsText());
case ValueHandleType.Unicode:
return(GetUnicodeCharsText());
case ValueHandleType.EscapedUTF8:
return(GetEscapedCharsText());
case ValueHandleType.Char:
return(GetCharText());
case ValueHandleType.Dictionary:
return(GetDictionaryString().Value);
case ValueHandleType.Base64:
byte[] bytes = ToByteArray();
DiagnosticUtility.DebugAssert(bytes != null, "");
return(Base64Encoding.GetString(bytes, 0, bytes.Length));
case ValueHandleType.List:
return(XmlConverter.ToString(ToList()));
case ValueHandleType.UniqueId:
return(XmlConverter.ToString(ToUniqueId()));
case ValueHandleType.Guid:
return(XmlConverter.ToString(ToGuid()));
case ValueHandleType.TimeSpan:
return(XmlConverter.ToString(ToTimeSpan()));
case ValueHandleType.QName:
return(GetQNameDictionaryText());
case ValueHandleType.ConstString:
return(s_constStrings[_offset]);
default:
throw /*System.Runtime.Serialization.*/ DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException());
}
}
