summaryrefslogtreecommitdiff
path: root/src/mscorlib/corefx/System/Globalization/JulianCalendar.cs
diff options
context:
space:
mode:
Diffstat (limited to 'src/mscorlib/corefx/System/Globalization/JulianCalendar.cs')
-rw-r--r--src/mscorlib/corefx/System/Globalization/JulianCalendar.cs444
1 files changed, 0 insertions, 444 deletions
diff --git a/src/mscorlib/corefx/System/Globalization/JulianCalendar.cs b/src/mscorlib/corefx/System/Globalization/JulianCalendar.cs
deleted file mode 100644
index 43e6ad07a2..0000000000
--- a/src/mscorlib/corefx/System/Globalization/JulianCalendar.cs
+++ /dev/null
@@ -1,444 +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.Diagnostics.Contracts;
-
-namespace System.Globalization
-{
- //
- // This class implements the Julian calendar. In 48 B.C. Julius Caesar ordered a calendar reform, and this calendar
- // is called Julian calendar. It consisted of a solar year of twelve months and of 365 days with an extra day
- // every fourth year.
- //*
- //* Calendar support range:
- //* Calendar Minimum Maximum
- //* ========== ========== ==========
- //* Gregorian 0001/01/01 9999/12/31
- //* Julia 0001/01/03 9999/10/19
-
- [Serializable]
- public class JulianCalendar : Calendar
- {
- public static readonly int JulianEra = 1;
-
- private const int DatePartYear = 0;
- private const int DatePartDayOfYear = 1;
- private const int DatePartMonth = 2;
- private const int DatePartDay = 3;
-
- // Number of days in a non-leap year
- private const int JulianDaysPerYear = 365;
- // Number of days in 4 years
- private const int JulianDaysPer4Years = JulianDaysPerYear * 4 + 1;
-
- private static readonly int[] s_daysToMonth365 =
- {
- 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365
- };
-
- private static readonly int[] s_daysToMonth366 =
- {
- 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366
- };
-
- // Gregorian Calendar 9999/12/31 = Julian Calendar 9999/10/19
- // keep it as variable field for serialization compat.
- internal int MaxYear = 9999;
-
-
- public override DateTime MinSupportedDateTime
- {
- get
- {
- return (DateTime.MinValue);
- }
- }
-
- public override DateTime MaxSupportedDateTime
- {
- get
- {
- return (DateTime.MaxValue);
- }
- }
-
- public override CalendarAlgorithmType AlgorithmType
- {
- get
- {
- return CalendarAlgorithmType.SolarCalendar;
- }
- }
-
- public JulianCalendar()
- {
- // There is no system setting of TwoDigitYear max, so set the value here.
- twoDigitYearMax = 2029;
- }
-
- internal override CalendarId ID
- {
- get
- {
- return CalendarId.JULIAN;
- }
- }
-
- internal static void CheckEraRange(int era)
- {
- if (era != CurrentEra && era != JulianEra)
- {
- throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue);
- }
- }
-
- internal void CheckYearEraRange(int year, int era)
- {
- CheckEraRange(era);
- if (year <= 0 || year > MaxYear)
- {
- throw new ArgumentOutOfRangeException(
- nameof(year),
- String.Format(
- CultureInfo.CurrentCulture,
- SR.ArgumentOutOfRange_Range,
- 1,
- MaxYear));
- }
- }
-
- internal static void CheckMonthRange(int month)
- {
- if (month < 1 || month > 12)
- {
- throw new ArgumentOutOfRangeException(nameof(month), SR.ArgumentOutOfRange_Month);
- }
- }
-
- /*===================================CheckDayRange============================
- **Action: Check for if the day value is valid.
- **Returns:
- **Arguments:
- **Exceptions:
- **Notes:
- ** Before calling this method, call CheckYearEraRange()/CheckMonthRange() to make
- ** sure year/month values are correct.
- ============================================================================*/
-
- internal static void CheckDayRange(int year, int month, int day)
- {
- if (year == 1 && month == 1)
- {
- // The mimimum supported Julia date is Julian 0001/01/03.
- if (day < 3)
- {
- throw new ArgumentOutOfRangeException(null,
- SR.ArgumentOutOfRange_BadYearMonthDay);
- }
- }
- bool isLeapYear = (year % 4) == 0;
- int[] days = isLeapYear ? s_daysToMonth366 : s_daysToMonth365;
- int monthDays = days[month] - days[month - 1];
- if (day < 1 || day > monthDays)
- {
- throw new ArgumentOutOfRangeException(
- nameof(day),
- String.Format(
- CultureInfo.CurrentCulture,
- SR.ArgumentOutOfRange_Range,
- 1,
- monthDays));
- }
- }
-
-
- // Returns a given date part of this DateTime. This method is used
- // to compute the year, day-of-year, month, or day part.
- internal static int GetDatePart(long ticks, int part)
- {
- // Gregorian 1/1/0001 is Julian 1/3/0001. Remember DateTime(0) is refered to Gregorian 1/1/0001.
- // The following line convert Gregorian ticks to Julian ticks.
- long julianTicks = ticks + TicksPerDay * 2;
- // n = number of days since 1/1/0001
- int n = (int)(julianTicks / TicksPerDay);
- // y4 = number of whole 4-year periods within 100-year period
- int y4 = n / JulianDaysPer4Years;
- // n = day number within 4-year period
- n -= y4 * JulianDaysPer4Years;
- // y1 = number of whole years within 4-year period
- int y1 = n / JulianDaysPerYear;
- // 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 (y4 * 4 + y1 + 1);
- }
- // n = day number within year
- n -= y1 * JulianDaysPerYear;
- // 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);
- int[] days = leapYear ? s_daysToMonth366 : s_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);
- }
-
- // Returns the tick count corresponding to the given year, month, and day.
- internal static long DateToTicks(int year, int month, int day)
- {
- int[] days = (year % 4 == 0) ? s_daysToMonth366 : s_daysToMonth365;
- int y = year - 1;
- int n = y * 365 + y / 4 + days[month - 1] + day - 1;
- // Gregorian 1/1/0001 is Julian 1/3/0001. n * TicksPerDay is the ticks in JulianCalendar.
- // Therefore, we subtract two days in the following to convert the ticks in JulianCalendar
- // to ticks in Gregorian calendar.
- return ((n - 2) * TicksPerDay);
- }
-
-
- 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)) ? s_daysToMonth366 : s_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));
- }
-
-
- public override DateTime AddYears(DateTime time, int years)
- {
- return (AddMonths(time, years * 12));
- }
-
-
- public override int GetDayOfMonth(DateTime time)
- {
- return (GetDatePart(time.Ticks, DatePartDay));
- }
-
-
- public override DayOfWeek GetDayOfWeek(DateTime time)
- {
- return ((DayOfWeek)((int)(time.Ticks / TicksPerDay + 1) % 7));
- }
-
-
- public override int GetDayOfYear(DateTime time)
- {
- return (GetDatePart(time.Ticks, DatePartDayOfYear));
- }
-
-
- public override int GetDaysInMonth(int year, int month, int era)
- {
- CheckYearEraRange(year, era);
- CheckMonthRange(month);
- int[] days = (year % 4 == 0) ? s_daysToMonth366 : s_daysToMonth365;
- return (days[month] - days[month - 1]);
- }
-
-
- public override int GetDaysInYear(int year, int era)
- {
- // Year/Era range is done in IsLeapYear().
- return (IsLeapYear(year, era) ? 366 : 365);
- }
-
-
- public override int GetEra(DateTime time)
- {
- return (JulianEra);
- }
-
-
- public override int GetMonth(DateTime time)
- {
- return (GetDatePart(time.Ticks, DatePartMonth));
- }
-
-
- public override int[] Eras
- {
- get
- {
- return (new int[] { JulianEra });
- }
- }
-
-
- public override int GetMonthsInYear(int year, int era)
- {
- CheckYearEraRange(year, era);
- return (12);
- }
-
-
- public override int GetYear(DateTime time)
- {
- return (GetDatePart(time.Ticks, DatePartYear));
- }
-
-
- public override bool IsLeapDay(int year, int month, int day, int era)
- {
- CheckMonthRange(month);
- // Year/Era range check is done in IsLeapYear().
- if (IsLeapYear(year, era))
- {
- CheckDayRange(year, month, day);
- return (month == 2 && day == 29);
- }
- CheckDayRange(year, month, day);
- 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)
- {
- CheckYearEraRange(year, era);
- return (0);
- }
-
-
- public override bool IsLeapMonth(int year, int month, int era)
- {
- CheckYearEraRange(year, era);
- CheckMonthRange(month);
- 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)
- {
- CheckYearEraRange(year, era);
- return (year % 4 == 0);
- }
-
-
- public override DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int era)
- {
- CheckYearEraRange(year, era);
- CheckMonthRange(month);
- CheckDayRange(year, month, day);
- if (millisecond < 0 || millisecond >= MillisPerSecond)
- {
- throw new ArgumentOutOfRangeException(
- nameof(millisecond),
- String.Format(
- CultureInfo.CurrentCulture,
- SR.ArgumentOutOfRange_Range,
- 0,
- MillisPerSecond - 1));
- }
-
- if (hour >= 0 && hour < 24 && minute >= 0 && minute < 60 && second >= 0 && second < 60)
- {
- return new DateTime(DateToTicks(year, month, day) + (new TimeSpan(0, hour, minute, second, millisecond)).Ticks);
- }
- else
- {
- throw new ArgumentOutOfRangeException(null, SR.ArgumentOutOfRange_BadHourMinuteSecond);
- }
- }
-
-
- public override int TwoDigitYearMax
- {
- get
- {
- 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_Bounds_Lower_Upper,
- 1,
- MaxYear));
- }
- return (base.ToFourDigitYear(year));
- }
- }
-}