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Diffstat (limited to 'src/mscorlib/corefx/System/Globalization/GregorianCalendar.cs')
-rw-r--r-- | src/mscorlib/corefx/System/Globalization/GregorianCalendar.cs | 666 |
1 files changed, 0 insertions, 666 deletions
diff --git a/src/mscorlib/corefx/System/Globalization/GregorianCalendar.cs b/src/mscorlib/corefx/System/Globalization/GregorianCalendar.cs deleted file mode 100644 index be5b65b385..0000000000 --- a/src/mscorlib/corefx/System/Globalization/GregorianCalendar.cs +++ /dev/null @@ -1,666 +0,0 @@ -// Licensed to the .NET Foundation under one or more agreements. -// The .NET Foundation licenses this file to you under the MIT license. -// See the LICENSE file in the project root for more information. - -// - -// - -using System; -using System.Globalization; -using System.Diagnostics.Contracts; -using System.Runtime.Serialization; -using System.Threading; - -namespace System.Globalization -{ - // This calendar recognizes two era values: - // 0 CurrentEra (AD) - // 1 BeforeCurrentEra (BC) - - [Serializable] - - public class GregorianCalendar : Calendar - { - /* - A.D. = anno Domini - */ - - public const int ADEra = 1; - - - internal const int DatePartYear = 0; - internal const int DatePartDayOfYear = 1; - internal const int DatePartMonth = 2; - internal const int DatePartDay = 3; - - // - // This is the max Gregorian year can be represented by DateTime class. The limitation - // is derived from DateTime class. - // - internal const int MaxYear = 9999; - - internal GregorianCalendarTypes m_type; - - internal static readonly int[] DaysToMonth365 = - { - 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 - }; - - internal static readonly int[] DaysToMonth366 = - { - 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 - }; - - private static volatile Calendar s_defaultInstance; - - [OnDeserialized] - private void OnDeserialized(StreamingContext ctx) - { - if (m_type < GregorianCalendarTypes.Localized || - m_type > GregorianCalendarTypes.TransliteratedFrench) - { - throw new SerializationException( - String.Format(CultureInfo.CurrentCulture, SR.Serialization_MemberOutOfRange, "type", "GregorianCalendar")); - } - } - - public override DateTime MinSupportedDateTime - { - get - { - return (DateTime.MinValue); - } - } - - public override DateTime MaxSupportedDateTime - { - get - { - return (DateTime.MaxValue); - } - } - - public override CalendarAlgorithmType AlgorithmType - { - get - { - return CalendarAlgorithmType.SolarCalendar; - } - } - - /*=================================GetDefaultInstance========================== - **Action: Internal method to provide a default intance of GregorianCalendar. Used by NLS+ implementation - ** and other calendars. - **Returns: - **Arguments: - **Exceptions: - ============================================================================*/ - - internal static Calendar GetDefaultInstance() - { - if (s_defaultInstance == null) - { - s_defaultInstance = new GregorianCalendar(); - } - return (s_defaultInstance); - } - - // Construct an instance of gregorian calendar. - - public GregorianCalendar() : - this(GregorianCalendarTypes.Localized) - { - } - - - public GregorianCalendar(GregorianCalendarTypes type) - { - if ((int)type < (int)GregorianCalendarTypes.Localized || (int)type > (int)GregorianCalendarTypes.TransliteratedFrench) - { - throw new ArgumentOutOfRangeException( - nameof(type), - SR.Format(SR.ArgumentOutOfRange_Range, - GregorianCalendarTypes.Localized, GregorianCalendarTypes.TransliteratedFrench)); - } - Contract.EndContractBlock(); - this.m_type = type; - } - - public virtual GregorianCalendarTypes CalendarType - { - get - { - return (m_type); - } - - set - { - VerifyWritable(); - - switch (value) - { - case GregorianCalendarTypes.Localized: - case GregorianCalendarTypes.USEnglish: - case GregorianCalendarTypes.MiddleEastFrench: - case GregorianCalendarTypes.Arabic: - case GregorianCalendarTypes.TransliteratedEnglish: - case GregorianCalendarTypes.TransliteratedFrench: - m_type = value; - break; - - default: - throw new ArgumentOutOfRangeException("m_type", SR.ArgumentOutOfRange_Enum); - } - } - } - - internal override CalendarId ID - { - get - { - // By returning different ID for different variations of GregorianCalendar, - // we can support the Transliterated Gregorian calendar. - // DateTimeFormatInfo will use this ID to get formatting information about - // the calendar. - return ((CalendarId)m_type); - } - } - - - // Returns a given date part of this DateTime. This method is used - // to compute the year, day-of-year, month, or day part. - internal virtual int GetDatePart(long ticks, int part) - { - // n = number of days since 1/1/0001 - int n = (int)(ticks / TicksPerDay); - // y400 = number of whole 400-year periods since 1/1/0001 - int y400 = n / DaysPer400Years; - // n = day number within 400-year period - n -= y400 * DaysPer400Years; - // y100 = number of whole 100-year periods within 400-year period - int y100 = n / DaysPer100Years; - // Last 100-year period has an extra day, so decrement result if 4 - if (y100 == 4) y100 = 3; - // n = day number within 100-year period - n -= y100 * DaysPer100Years; - // y4 = number of whole 4-year periods within 100-year period - int y4 = n / DaysPer4Years; - // n = day number within 4-year period - n -= y4 * DaysPer4Years; - // y1 = number of whole years within 4-year period - int y1 = n / DaysPerYear; - // Last year has an extra day, so decrement result if 4 - if (y1 == 4) y1 = 3; - // If year was requested, compute and return it - if (part == DatePartYear) - { - return (y400 * 400 + y100 * 100 + y4 * 4 + y1 + 1); - } - // n = day number within year - n -= y1 * DaysPerYear; - // If day-of-year was requested, return it - if (part == DatePartDayOfYear) - { - return (n + 1); - } - // Leap year calculation looks different from IsLeapYear since y1, y4, - // and y100 are relative to year 1, not year 0 - bool leapYear = (y1 == 3 && (y4 != 24 || y100 == 3)); - int[] days = leapYear ? DaysToMonth366 : DaysToMonth365; - // All months have less than 32 days, so n >> 5 is a good conservative - // estimate for the month - int m = (n >> 5) + 1; - // m = 1-based month number - while (n >= days[m]) m++; - // If month was requested, return it - if (part == DatePartMonth) return (m); - // Return 1-based day-of-month - return (n - days[m - 1] + 1); - } - - /*=================================GetAbsoluteDate========================== - **Action: Gets the absolute date for the given Gregorian date. The absolute date means - ** the number of days from January 1st, 1 A.D. - **Returns: the absolute date - **Arguments: - ** year the Gregorian year - ** month the Gregorian month - ** day the day - **Exceptions: - ** ArgumentOutOfRangException if year, month, day value is valid. - **Note: - ** This is an internal method used by DateToTicks() and the calculations of Hijri and Hebrew calendars. - ** Number of Days in Prior Years (both common and leap years) + - ** Number of Days in Prior Months of Current Year + - ** Number of Days in Current Month - ** - ============================================================================*/ - - internal static long GetAbsoluteDate(int year, int month, int day) - { - if (year >= 1 && year <= MaxYear && month >= 1 && month <= 12) - { - int[] days = ((year % 4 == 0 && (year % 100 != 0 || year % 400 == 0))) ? DaysToMonth366 : DaysToMonth365; - if (day >= 1 && (day <= days[month] - days[month - 1])) - { - int y = year - 1; - int absoluteDate = y * 365 + y / 4 - y / 100 + y / 400 + days[month - 1] + day - 1; - return (absoluteDate); - } - } - throw new ArgumentOutOfRangeException(null, SR.ArgumentOutOfRange_BadYearMonthDay); - } - - // Returns the tick count corresponding to the given year, month, and day. - // Will check the if the parameters are valid. - internal virtual long DateToTicks(int year, int month, int day) - { - return (GetAbsoluteDate(year, month, day) * TicksPerDay); - } - - // Returns the DateTime resulting from adding the given number of - // months to the specified DateTime. The result is computed by incrementing - // (or decrementing) the year and month parts of the specified DateTime by - // value months, and, if required, adjusting the day part of the - // resulting date downwards to the last day of the resulting month in the - // resulting year. The time-of-day part of the result is the same as the - // time-of-day part of the specified DateTime. - // - // In more precise terms, considering the specified DateTime to be of the - // form y / m / d + t, where y is the - // year, m is the month, d is the day, and t is the - // time-of-day, the result is y1 / m1 / d1 + t, - // where y1 and m1 are computed by adding value months - // to y and m, and d1 is the largest value less than - // or equal to d that denotes a valid day in month m1 of year - // y1. - // - - public override DateTime AddMonths(DateTime time, int months) - { - if (months < -120000 || months > 120000) - { - throw new ArgumentOutOfRangeException( - nameof(months), - String.Format( - CultureInfo.CurrentCulture, - SR.ArgumentOutOfRange_Range, - -120000, - 120000)); - } - Contract.EndContractBlock(); - int y = GetDatePart(time.Ticks, DatePartYear); - int m = GetDatePart(time.Ticks, DatePartMonth); - int d = GetDatePart(time.Ticks, DatePartDay); - int i = m - 1 + months; - if (i >= 0) - { - m = i % 12 + 1; - y = y + i / 12; - } - else - { - m = 12 + (i + 1) % 12; - y = y + (i - 11) / 12; - } - int[] daysArray = (y % 4 == 0 && (y % 100 != 0 || y % 400 == 0)) ? DaysToMonth366 : DaysToMonth365; - int days = (daysArray[m] - daysArray[m - 1]); - - if (d > days) - { - d = days; - } - long ticks = DateToTicks(y, m, d) + time.Ticks % TicksPerDay; - Calendar.CheckAddResult(ticks, MinSupportedDateTime, MaxSupportedDateTime); - - return (new DateTime(ticks)); - } - - - // Returns the DateTime resulting from adding the given number of - // years to the specified DateTime. The result is computed by incrementing - // (or decrementing) the year part of the specified DateTime by value - // years. If the month and day of the specified DateTime is 2/29, and if the - // resulting year is not a leap year, the month and day of the resulting - // DateTime becomes 2/28. Otherwise, the month, day, and time-of-day - // parts of the result are the same as those of the specified DateTime. - // - - public override DateTime AddYears(DateTime time, int years) - { - return (AddMonths(time, years * 12)); - } - - // Returns the day-of-month part of the specified DateTime. The returned - // value is an integer between 1 and 31. - // - - public override int GetDayOfMonth(DateTime time) - { - return (GetDatePart(time.Ticks, DatePartDay)); - } - - // Returns the day-of-week part of the specified DateTime. The returned value - // is an integer between 0 and 6, where 0 indicates Sunday, 1 indicates - // Monday, 2 indicates Tuesday, 3 indicates Wednesday, 4 indicates - // Thursday, 5 indicates Friday, and 6 indicates Saturday. - // - - public override DayOfWeek GetDayOfWeek(DateTime time) - { - return ((DayOfWeek)((int)(time.Ticks / TicksPerDay + 1) % 7)); - } - - // Returns the day-of-year part of the specified DateTime. The returned value - // is an integer between 1 and 366. - // - - public override int GetDayOfYear(DateTime time) - { - return (GetDatePart(time.Ticks, DatePartDayOfYear)); - } - - // Returns the number of days in the month given by the year and - // month arguments. - // - - public override int GetDaysInMonth(int year, int month, int era) - { - if (era == CurrentEra || era == ADEra) - { - if (year < 1 || year > MaxYear) - { - throw new ArgumentOutOfRangeException(nameof(year), SR.Format(SR.ArgumentOutOfRange_Range, - 1, MaxYear)); - } - if (month < 1 || month > 12) - { - throw new ArgumentOutOfRangeException(nameof(month), SR.ArgumentOutOfRange_Month); - } - int[] days = ((year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)) ? DaysToMonth366 : DaysToMonth365); - return (days[month] - days[month - 1]); - } - throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue); - } - - // Returns the number of days in the year given by the year argument for the current era. - // - - public override int GetDaysInYear(int year, int era) - { - if (era == CurrentEra || era == ADEra) - { - if (year >= 1 && year <= MaxYear) - { - return ((year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)) ? 366 : 365); - } - throw new ArgumentOutOfRangeException( - nameof(year), - String.Format( - CultureInfo.CurrentCulture, - SR.ArgumentOutOfRange_Range, - 1, - MaxYear)); - } - throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue); - } - - // Returns the era for the specified DateTime value. - - public override int GetEra(DateTime time) - { - return (ADEra); - } - - - public override int[] Eras - { - get - { - return (new int[] { ADEra }); - } - } - - - // Returns the month part of the specified DateTime. The returned value is an - // integer between 1 and 12. - // - - public override int GetMonth(DateTime time) - { - return (GetDatePart(time.Ticks, DatePartMonth)); - } - - // Returns the number of months in the specified year and era. - - public override int GetMonthsInYear(int year, int era) - { - if (era == CurrentEra || era == ADEra) - { - if (year >= 1 && year <= MaxYear) - { - return (12); - } - throw new ArgumentOutOfRangeException( - nameof(year), - String.Format( - CultureInfo.CurrentCulture, - SR.ArgumentOutOfRange_Range, - 1, - MaxYear)); - } - throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue); - } - - // Returns the year part of the specified DateTime. The returned value is an - // integer between 1 and 9999. - // - - public override int GetYear(DateTime time) - { - return (GetDatePart(time.Ticks, DatePartYear)); - } - - // Checks whether a given day in the specified era is a leap day. This method returns true if - // the date is a leap day, or false if not. - // - - public override bool IsLeapDay(int year, int month, int day, int era) - { - if (month < 1 || month > 12) - { - throw new ArgumentOutOfRangeException(nameof(month), SR.Format(SR.ArgumentOutOfRange_Range, - 1, 12)); - } - Contract.EndContractBlock(); - - if (era != CurrentEra && era != ADEra) - { - throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue); - } - if (year < 1 || year > MaxYear) - { - throw new ArgumentOutOfRangeException( - nameof(year), - SR.Format(SR.ArgumentOutOfRange_Range, 1, MaxYear)); - } - - if (day < 1 || day > GetDaysInMonth(year, month)) - { - throw new ArgumentOutOfRangeException(nameof(day), SR.Format(SR.ArgumentOutOfRange_Range, - 1, GetDaysInMonth(year, month))); - } - if (!IsLeapYear(year)) - { - return (false); - } - if (month == 2 && day == 29) - { - return (true); - } - return (false); - } - - // Returns the leap month in a calendar year of the specified era. This method returns 0 - // if this calendar does not have leap month, or this year is not a leap year. - // - - public override int GetLeapMonth(int year, int era) - { - if (era != CurrentEra && era != ADEra) - { - throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue); - } - if (year < 1 || year > MaxYear) - { - throw new ArgumentOutOfRangeException( - nameof(year), - String.Format( - CultureInfo.CurrentCulture, - SR.ArgumentOutOfRange_Range, 1, MaxYear)); - } - Contract.EndContractBlock(); - return (0); - } - - // Checks whether a given month in the specified era is a leap month. This method returns true if - // month is a leap month, or false if not. - // - - public override bool IsLeapMonth(int year, int month, int era) - { - if (era != CurrentEra && era != ADEra) - { - throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue); - } - - if (year < 1 || year > MaxYear) - { - throw new ArgumentOutOfRangeException( - nameof(year), - String.Format( - CultureInfo.CurrentCulture, - SR.ArgumentOutOfRange_Range, 1, MaxYear)); - } - - if (month < 1 || month > 12) - { - throw new ArgumentOutOfRangeException(nameof(month), SR.Format(SR.ArgumentOutOfRange_Range, - 1, 12)); - } - Contract.EndContractBlock(); - return (false); - } - - // Checks whether a given year in the specified era is a leap year. This method returns true if - // year is a leap year, or false if not. - // - - public override bool IsLeapYear(int year, int era) - { - if (era == CurrentEra || era == ADEra) - { - if (year >= 1 && year <= MaxYear) - { - return (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)); - } - - throw new ArgumentOutOfRangeException( - nameof(year), - String.Format( - CultureInfo.CurrentCulture, - SR.ArgumentOutOfRange_Range, 1, MaxYear)); - } - throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue); - } - - // Returns the date and time converted to a DateTime value. Throws an exception if the n-tuple is invalid. - // - - public override DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int era) - { - if (era == CurrentEra || era == ADEra) - { - return new DateTime(year, month, day, hour, minute, second, millisecond); - } - throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue); - } - - internal override Boolean TryToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int era, out DateTime result) - { - if (era == CurrentEra || era == ADEra) - { - try - { - result = new DateTime(year, month, day, hour, minute, second, millisecond); - return true; - } - catch (ArgumentOutOfRangeException) - { - result = DateTime.Now; - return false; - } - catch (ArgumentException) - { - result = DateTime.Now; - return false; - } - } - result = DateTime.MinValue; - return false; - } - - private const int DEFAULT_TWO_DIGIT_YEAR_MAX = 2029; - - - public override int TwoDigitYearMax - { - get - { - if (twoDigitYearMax == -1) - { - twoDigitYearMax = GetSystemTwoDigitYearSetting(ID, DEFAULT_TWO_DIGIT_YEAR_MAX); - } - return (twoDigitYearMax); - } - - set - { - VerifyWritable(); - if (value < 99 || value > MaxYear) - { - throw new ArgumentOutOfRangeException( - "year", - String.Format( - CultureInfo.CurrentCulture, - SR.ArgumentOutOfRange_Range, - 99, - MaxYear)); - } - twoDigitYearMax = value; - } - } - - - public override int ToFourDigitYear(int year) - { - if (year < 0) - { - throw new ArgumentOutOfRangeException(nameof(year), - SR.ArgumentOutOfRange_NeedNonNegNum); - } - Contract.EndContractBlock(); - - if (year > MaxYear) - { - throw new ArgumentOutOfRangeException( - nameof(year), - String.Format( - CultureInfo.CurrentCulture, - SR.ArgumentOutOfRange_Range, 1, MaxYear)); - } - return (base.ToFourDigitYear(year)); - } - } -} |