System.DateTimeParse.ProcessDateTimeSuffix C# (CSharp) Method

        private static bool ProcessDateTimeSuffix(ref DateTimeResult result, ref DateTimeRawInfo raw, ref DateTimeToken dtok)
        {
            switch (dtok.suffix)
            {
                case TokenType.SEP_YearSuff:
                    if ((result.flags & ParseFlags.HaveYear) != 0) {
                        return false;
                    }
                    result.flags |= ParseFlags.HaveYear;
                    result.Year = raw.year = dtok.num;
                    break;
                case TokenType.SEP_MonthSuff:
                    if ((result.flags & ParseFlags.HaveMonth) != 0) {
                        return false;
                    }
                    result.flags |= ParseFlags.HaveMonth;
                    result.Month= raw.month = dtok.num;
                    break;
                case TokenType.SEP_DaySuff:
                    if ((result.flags & ParseFlags.HaveDay) != 0) {
                        return false;
                    }
                    result.flags |= ParseFlags.HaveDay;
                    result.Day  = dtok.num;
                    break;
                case TokenType.SEP_HourSuff:
                    if ((result.flags & ParseFlags.HaveHour) != 0) {
                        return false;
                    }
                    result.flags |= ParseFlags.HaveHour;
                    result.Hour = dtok.num;
                    break;
                case TokenType.SEP_MinuteSuff:
                    if ((result.flags & ParseFlags.HaveMinute) != 0) {
                        return false;
                    }
                    result.flags |= ParseFlags.HaveMinute;
                    result.Minute = dtok.num;
                    break;
                case TokenType.SEP_SecondSuff:
                    if ((result.flags & ParseFlags.HaveSecond) != 0) {
                        return false;
                    }
                    result.flags |= ParseFlags.HaveSecond;
                    result.Second = dtok.num;
                    break;
            }
            return true;

        }