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authorJiyoung Yun <jy910.yun@samsung.com>2017-04-13 14:17:19 +0900
committerJiyoung Yun <jy910.yun@samsung.com>2017-04-13 14:17:19 +0900
commita56e30c8d33048216567753d9d3fefc2152af8ac (patch)
tree7e5d979695fc4a431740982eb1cfecc2898b23a5 /src/mscorlib/corefx/System/Globalization/TaiwanCalendar.cs
parent4b11dc566a5bbfa1378d6266525c281b028abcc8 (diff)
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Imported Upstream version 2.0.0.11353upstream/2.0.0.11353
Diffstat (limited to 'src/mscorlib/corefx/System/Globalization/TaiwanCalendar.cs')
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diff --git a/src/mscorlib/corefx/System/Globalization/TaiwanCalendar.cs b/src/mscorlib/corefx/System/Globalization/TaiwanCalendar.cs
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-// 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.CodeAnalysis;
-using System.Diagnostics.Contracts;
-
-namespace System.Globalization
-{
- /*=================================TaiwanCalendar==========================
- **
- ** Taiwan calendar is based on the Gregorian calendar. And the year is an offset to Gregorian calendar.
- ** That is,
- ** Taiwan year = Gregorian year - 1911. So 1912/01/01 A.D. is Taiwan 1/01/01
- **
- ** Calendar support range:
- ** Calendar Minimum Maximum
- ** ========== ========== ==========
- ** Gregorian 1912/01/01 9999/12/31
- ** Taiwan 01/01/01 8088/12/31
- ============================================================================*/
-
- [Serializable]
- public class TaiwanCalendar : Calendar
- {
- //
- // The era value for the current era.
- //
-
- // Since
- // Gregorian Year = Era Year + yearOffset
- // When Gregorian Year 1912 is year 1, so that
- // 1912 = 1 + yearOffset
- // So yearOffset = 1911
- //m_EraInfo[0] = new EraInfo(1, new DateTime(1912, 1, 1).Ticks, 1911, 1, GregorianCalendar.MaxYear - 1911);
-
- // Initialize our era info.
- internal static EraInfo[] taiwanEraInfo = new EraInfo[] {
- new EraInfo( 1, 1912, 1, 1, 1911, 1, GregorianCalendar.MaxYear - 1911) // era #, start year/month/day, yearOffset, minEraYear
- };
-
- internal static volatile Calendar s_defaultInstance;
-
- internal GregorianCalendarHelper helper;
-
- /*=================================GetDefaultInstance==========================
- **Action: Internal method to provide a default intance of TaiwanCalendar. Used by NLS+ implementation
- ** and other calendars.
- **Returns:
- **Arguments:
- **Exceptions:
- ============================================================================*/
-
- internal static Calendar GetDefaultInstance()
- {
- if (s_defaultInstance == null)
- {
- s_defaultInstance = new TaiwanCalendar();
- }
- return (s_defaultInstance);
- }
-
- internal static readonly DateTime calendarMinValue = new DateTime(1912, 1, 1);
-
-
- public override DateTime MinSupportedDateTime
- {
- get
- {
- return (calendarMinValue);
- }
- }
-
- public override DateTime MaxSupportedDateTime
- {
- get
- {
- return (DateTime.MaxValue);
- }
- }
-
- public override CalendarAlgorithmType AlgorithmType
- {
- get
- {
- return CalendarAlgorithmType.SolarCalendar;
- }
- }
-
- // Return the type of the Taiwan calendar.
- //
-
- public TaiwanCalendar()
- {
- try
- {
- new CultureInfo("zh-TW");
- }
- catch (ArgumentException e)
- {
- throw new TypeInitializationException(this.GetType().ToString(), e);
- }
- helper = new GregorianCalendarHelper(this, taiwanEraInfo);
- }
-
- internal override CalendarId ID
- {
- get
- {
- return CalendarId.TAIWAN;
- }
- }
-
-
- public override DateTime AddMonths(DateTime time, int months)
- {
- return (helper.AddMonths(time, months));
- }
-
-
- public override DateTime AddYears(DateTime time, int years)
- {
- return (helper.AddYears(time, years));
- }
-
-
- public override int GetDaysInMonth(int year, int month, int era)
- {
- return (helper.GetDaysInMonth(year, month, era));
- }
-
-
- public override int GetDaysInYear(int year, int era)
- {
- return (helper.GetDaysInYear(year, era));
- }
-
-
- public override int GetDayOfMonth(DateTime time)
- {
- return (helper.GetDayOfMonth(time));
- }
-
-
- public override DayOfWeek GetDayOfWeek(DateTime time)
- {
- return (helper.GetDayOfWeek(time));
- }
-
-
- public override int GetDayOfYear(DateTime time)
- {
- return (helper.GetDayOfYear(time));
- }
-
-
- public override int GetMonthsInYear(int year, int era)
- {
- return (helper.GetMonthsInYear(year, era));
- }
-
-
- [SuppressMessage("Microsoft.Contracts", "CC1055")] // Skip extra error checking to avoid *potential* AppCompat problems.
- public override int GetWeekOfYear(DateTime time, CalendarWeekRule rule, DayOfWeek firstDayOfWeek)
- {
- return (helper.GetWeekOfYear(time, rule, firstDayOfWeek));
- }
-
-
- public override int GetEra(DateTime time)
- {
- return (helper.GetEra(time));
- }
-
- public override int GetMonth(DateTime time)
- {
- return (helper.GetMonth(time));
- }
-
-
- public override int GetYear(DateTime time)
- {
- return (helper.GetYear(time));
- }
-
-
- public override bool IsLeapDay(int year, int month, int day, int era)
- {
- return (helper.IsLeapDay(year, month, day, era));
- }
-
-
- public override bool IsLeapYear(int year, int era)
- {
- return (helper.IsLeapYear(year, era));
- }
-
- // 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)
- {
- return (helper.GetLeapMonth(year, era));
- }
-
-
- public override bool IsLeapMonth(int year, int month, int era)
- {
- return (helper.IsLeapMonth(year, month, era));
- }
-
-
- public override DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int era)
- {
- return (helper.ToDateTime(year, month, day, hour, minute, second, millisecond, era));
- }
-
-
- public override int[] Eras
- {
- get
- {
- return (helper.Eras);
- }
- }
-
- private const int DEFAULT_TWO_DIGIT_YEAR_MAX = 99;
-
- public override int TwoDigitYearMax
- {
- get
- {
- if (twoDigitYearMax == -1)
- {
- twoDigitYearMax = GetSystemTwoDigitYearSetting(ID, DEFAULT_TWO_DIGIT_YEAR_MAX);
- }
- return (twoDigitYearMax);
- }
-
- set
- {
- VerifyWritable();
- if (value < 99 || value > helper.MaxYear)
- {
- throw new ArgumentOutOfRangeException(
- "year",
- String.Format(
- CultureInfo.CurrentCulture,
- SR.ArgumentOutOfRange_Range,
- 99,
- helper.MaxYear));
- }
- twoDigitYearMax = value;
- }
- }
-
- // For Taiwan calendar, four digit year is not used.
- // Therefore, for any two digit number, we just return the original number.
-
- public override int ToFourDigitYear(int year)
- {
- if (year <= 0)
- {
- throw new ArgumentOutOfRangeException(nameof(year),
- SR.ArgumentOutOfRange_NeedPosNum);
- }
- Contract.EndContractBlock();
-
- if (year > helper.MaxYear)
- {
- throw new ArgumentOutOfRangeException(
- nameof(year),
- String.Format(
- CultureInfo.CurrentCulture,
- SR.ArgumentOutOfRange_Range,
- 1,
- helper.MaxYear));
- }
- return (year);
- }
- }
-}
-