/// <summary>Converts a date/time in the form of a year, month, day,
/// hour, minute, second, fractional seconds, and time offset to a CBOR
/// object.</summary>
/// <param name='bigYear'>The parameter <paramref name='bigYear'/> is a
/// Numbers.EInteger object.</param>
/// <param name='lesserFields'>An array that will store the fields
/// (other than the year) of the date and time. See the
/// TryGetDateTimeFields method for information on the "lesserFields"
/// parameter.</param>
/// <returns>A CBOR object encoding the given date fields according to
/// the conversion type used to create this date converter.</returns>
/// <exception cref='ArgumentNullException'>The parameter <paramref
/// name='bigYear'/> or <paramref name='lesserFields'/> is
/// null.</exception>
/// <exception cref='PeterO.Cbor.CBORException'>An error occurred in
/// conversion.</exception>
public CBORObject DateTimeFieldsToCBORObject(EInteger bigYear, int[]
lesserFields)
{
if (bigYear == null)
{
throw new ArgumentNullException(nameof(bigYear));
}
if (lesserFields == null)
{
throw new ArgumentNullException(nameof(lesserFields));
}
if (lesserFields.Length < 7)
{
throw new ArgumentException("\"lesserFields\" + \"'s length\" (" +
lesserFields.Length + ") is not greater or equal to 7");
}
try {
switch (this.convType)
{
case ConversionType.TaggedString: {
string str = CBORUtilities.ToAtomDateTimeString(bigYear,
lesserFields);
return(CBORObject.FromObjectAndTag(str, 0));
}
case ConversionType.TaggedNumber:
case ConversionType.UntaggedNumber:
try {
var status = new int[1];
EFloat ef = CBORUtilities.DateTimeToIntegerOrDouble(
bigYear,
lesserFields,
status);
if (status[0] == 0)
{
return(this.convType == ConversionType.TaggedNumber ?
CBORObject.FromObjectAndTag(ef.ToEInteger(), 1) :
CBORObject.FromObject(ef.ToEInteger()));
}
else if (status[0] == 1)
{
return(this.convType == ConversionType.TaggedNumber ?
CBORObject.FromFloatingPointBits(ef.ToDoubleBits(),
8).WithTag(1) : CBORObject.FromFloatingPointBits(ef.ToDoubleBits(), 8));
}
else
{
throw new CBORException("Too big or small to fit an integer" +
"\u0020or" +
"\u0020floating-point number");
}
} catch (ArgumentException ex) {
throw new CBORException(ex.Message, ex);
}
default:
throw new CBORException("Internal error");
}
} catch (ArgumentException ex) {
throw new CBORException(ex.Message, ex);
}
}
