private static void PrintFieldValue(object value, TextGenerator generator)
{
if (value == null)
{
}
else if (value is bool)
{
generator.Print((bool)value ? "true" : "false");
}
else if (value is ByteString)
{
generator.Print("\"");
generator.Print(EscapeBytes((ByteString)value));
generator.Print("\"");
}
else if (value is string)
{
generator.Print("\"");
generator.Print(EscapeText((string)value));
generator.Print("\"");
}
else if (value is Enum)
{
var name = OriginalEnumValueHelper.GetOriginalName(value);
generator.Print(name);
}
else if (value is float || value is double)
{
string text = ((IFormattable)value).ToString("r", CultureInfo.InvariantCulture);
if (text == "NaN" || text == "Infinity" || text == "-Infinity")
{
generator.Print("\"");
generator.Print(text);
generator.Print("\"");
}
else
{
generator.Print(text);
}
}
else if (value is Single)
{
string text = ((IConvertible)value).ToString(CultureInfo.InvariantCulture);
generator.Print(text);
}
else if (value is IFormattable)
{
generator.Print(((IFormattable)value).ToString("d", CultureInfo.InvariantCulture));
}
else if (value is IMessage)
{
Print((IMessage)value, generator);
}
else
{
throw new ArgumentException("Unable to format value of type " + value.GetType());
}
}
/// <summary>
/// Writes a single value to the given writer as text. Only types understood by
/// Protocol Buffers can be written in this way. This method is only exposed for
/// advanced use cases; most users should be using <see cref="Format(IMessage)"/>
/// or <see cref="Format(IMessage, TextWriter)"/>.
/// </summary>
/// <param name="writer">The writer to write the value to. Must not be null.</param>
/// <param name="value">The value to write. May be null.</param>
public void WriteValue(TextWriter writer, object value)
{
if (value == null)
{
WriteNull(writer);
}
else if (value is bool)
{
writer.Write((bool)value ? "true" : "false");
}
else if (value is ByteString)
{
// Nothing in Base64 needs escaping
writer.Write('"');
WriteByteString(writer, (ByteString)value);
writer.Write('"');
}
else if (value is string)
{
WriteString(writer, (string)value);
}
else if (value is IDictionary)
{
WriteDictionary(writer, (IDictionary)value);
}
else if (value is IList)
{
WriteList(writer, (IList)value);
}
else if (value is int || value is uint)
{
IFormattable formattable = (IFormattable)value;
writer.Write(formattable.ToString("d", CultureInfo.InvariantCulture));
}
else if (value is long || value is ulong)
{
writer.Write('"');
IFormattable formattable = (IFormattable)value;
writer.Write(formattable.ToString("d", CultureInfo.InvariantCulture));
writer.Write('"');
}
else if (value is System.Enum)
{
if (settings.FormatEnumsAsIntegers)
{
WriteValue(writer, (int)value);
}
else
{
string name = OriginalEnumValueHelper.GetOriginalName(value);
if (name != null)
{
WriteString(writer, name);
}
else
{
WriteValue(writer, (int)value);
}
}
}
else if (value is float || value is double)
{
string text = ((IFormattable)value).ToString("r", CultureInfo.InvariantCulture);
if (text == "NaN" || text == "Infinity" || text == "-Infinity")
{
writer.Write('"');
writer.Write(text);
writer.Write('"');
}
else
{
writer.Write(text);
}
}
else if (value is IMessage)
{
Format((IMessage)value, writer);
}
else
{
throw new ArgumentException("Unable to format value of type " + value.GetType());
}
}