System.DateTimeResult.SetDate C# (CSharp) Method

        internal void SetDate(int year, int month, int day)
        {
            Year = year;
            Month = month;
            Day = day;
        }
        internal void SetFailure(ParseFailureKind failure, string failureMessageID, object failureMessageFormatArgument) {

		private static bool GetDayOfMNN(ref DateTimeResult result, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
		{
			if ((result.flags & ParseFlags.HaveDate) != (ParseFlags)0)
			{
				result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
				return false;
			}
			int number = raw.GetNumber(0);
			int number2 = raw.GetNumber(1);
			int num;
			if (!DateTimeParse.GetYearMonthDayOrder(dtfi.ShortDatePattern, dtfi, out num))
			{
				result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_BadDatePattern", dtfi.ShortDatePattern);
				return false;
			}
			if (num == 1)
			{
				int year;
				if (result.calendar.IsValidDay(year = DateTimeParse.AdjustYear(ref result, number2), raw.month, number, result.era))
				{
					result.SetDate(year, raw.month, number);
					result.flags |= ParseFlags.HaveDate;
					return true;
				}
				if (result.calendar.IsValidDay(year = DateTimeParse.AdjustYear(ref result, number), raw.month, number2, result.era))
				{
					result.SetDate(year, raw.month, number2);
					result.flags |= ParseFlags.HaveDate;
					return true;
				}
			}
			else
			{
				if (num == 0)
				{
					int year;
					if (result.calendar.IsValidDay(year = DateTimeParse.AdjustYear(ref result, number), raw.month, number2, result.era))
					{
						result.SetDate(year, raw.month, number2);
						result.flags |= ParseFlags.HaveDate;
						return true;
					}
					if (result.calendar.IsValidDay(year = DateTimeParse.AdjustYear(ref result, number2), raw.month, number, result.era))
					{
						result.SetDate(year, raw.month, number);
						result.flags |= ParseFlags.HaveDate;
						return true;
					}
				}
				else
				{
					if (num == 2)
					{
						int year;
						if (result.calendar.IsValidDay(year = DateTimeParse.AdjustYear(ref result, number2), raw.month, number, result.era))
						{
							result.SetDate(year, raw.month, number);
							result.flags |= ParseFlags.HaveDate;
							return true;
						}
						if (result.calendar.IsValidDay(year = DateTimeParse.AdjustYear(ref result, number), raw.month, number2, result.era))
						{
							result.SetDate(year, raw.month, number2);
							result.flags |= ParseFlags.HaveDate;
							return true;
						}
					}
				}
			}
			result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
			return false;
		}