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Fix IDE0025 (use expression body for properties)
[mono-project.git] / netcore / System.Private.CoreLib / shared / System / Globalization / JapaneseLunisolarCalendar.cs
blob67162a8c541e2bfee114a402b862d1b1119a67ff
1 // Licensed to the .NET Foundation under one or more agreements.
2 // The .NET Foundation licenses this file to you under the MIT license.
3 // See the LICENSE file in the project root for more information.
4
5 namespace System.Globalization
6 {
7 /// <remarks>
8 /// Calendar support range:
9 /// Calendar Minimum Maximum
10 /// ========== ========== ==========
11 /// Gregorian 1960/01/28 2050/01/22
12 /// JapaneseLunisolar 1960/01/01 2049/12/29
13 /// </remarks>
14 public class JapaneseLunisolarCalendar : EastAsianLunisolarCalendar
15 {
16 public const int JapaneseEra = 1;
17
18 private readonly GregorianCalendarHelper _helper;
19
20 private const int MinLunisolarYear = 1960;
21 private const int MaxLunisolarYear = 2049;
22
23 private static readonly DateTime s_minDate = new DateTime(1960, 1, 28);
24 private static readonly DateTime s_maxDate = new DateTime((new DateTime(2050, 1, 22, 23, 59, 59, 999)).Ticks + 9999);
25
26 public override DateTime MinSupportedDateTime => s_minDate;
27
28 public override DateTime MaxSupportedDateTime => s_maxDate;
29
30 protected override int DaysInYearBeforeMinSupportedYear =>
31 // 1959 from ChineseLunisolarCalendar
32 354;
33
34 // Data for years 1960-2049 matches output of Calendrical Calculations [1] and published calendar tables [2].
35 // [1] Reingold, Edward M, and Nachum Dershowitz. Calendrical Calculations: The Ultimate Edition. Cambridge [etc.: Cambridge University Press, 2018. Print.
36 // [2] Nishizawa, Yūsō. Rekijitsu Taikan: Meiji Kaireki 1873-Nen-2100-Nen Shinkyūreki, Kanshi Kyūsei Rokuyō Taishō. Tōkyō: Shin Jinbutsu Ōraisha, 1994. Print.
37 private static readonly int[,] s_yinfo =
38 {
39 /*Y LM Lmon Lday DaysPerMonth D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 #Days
40 1960 */ { 06, 01, 28, 0b1010110101010000 }, /* 30 29 30 29 30 30 29 30 29 30 29 30 29 384
41 1961 */ { 00, 02, 15, 0b1010101101010000 }, /* 30 29 30 29 30 29 30 30 29 30 29 30 355
42 1962 */ { 00, 02, 05, 0b0100101101100000 }, /* 29 30 29 29 30 29 30 30 29 30 30 29 354
43 1963 */ { 04, 01, 25, 0b1010010101110000 }, /* 30 29 30 29 29 30 29 30 29 30 30 30 29 384
44 1964 */ { 00, 02, 13, 0b1010010101110000 }, /* 30 29 30 29 29 30 29 30 29 30 30 30 355
45 1965 */ { 00, 02, 02, 0b0101001001110000 }, /* 29 30 29 30 29 29 30 29 29 30 30 30 354
46 1966 */ { 03, 01, 22, 0b0110100100110000 }, /* 29 30 30 29 30 29 29 30 29 29 30 30 29 383
47 1967 */ { 00, 02, 09, 0b1101100101010000 }, /* 30 30 29 30 30 29 29 30 29 30 29 30 355
48 1968 */ { 07, 01, 30, 0b0110101010101000 }, /* 29 30 30 29 30 29 30 29 30 29 30 29 30 384
49 1969 */ { 00, 02, 17, 0b0101011010100000 }, /* 29 30 29 30 29 30 30 29 30 29 30 29 354
50 1970 */ { 00, 02, 06, 0b1001101011010000 }, /* 30 29 29 30 30 29 30 29 30 30 29 30 355
51 1971 */ { 05, 01, 27, 0b0100101011101000 }, /* 29 30 29 29 30 29 30 29 30 30 30 29 30 384
52 1972 */ { 00, 02, 15, 0b0100101011100000 }, /* 29 30 29 29 30 29 30 29 30 30 30 29 354
53 1973 */ { 00, 02, 03, 0b1010010011100000 }, /* 30 29 30 29 29 30 29 29 30 30 30 29 354
54 1974 */ { 04, 01, 23, 0b1101001001101000 }, /* 30 30 29 30 29 29 30 29 29 30 30 29 30 384
55 1975 */ { 00, 02, 11, 0b1101001001010000 }, /* 30 30 29 30 29 29 30 29 29 30 29 30 354
56 1976 */ { 08, 01, 31, 0b1101010101001000 }, /* 30 30 29 30 29 30 29 30 29 30 29 29 30 384
57 1977 */ { 00, 02, 18, 0b1011010101000000 }, /* 30 29 30 30 29 30 29 30 29 30 29 29 354
58 1978 */ { 00, 02, 07, 0b1101011010100000 }, /* 30 30 29 30 29 30 30 29 30 29 30 29 355
59 1979 */ { 06, 01, 28, 0b1001011011010000 }, /* 30 29 29 30 29 30 30 29 30 30 29 30 29 384
60 1980 */ { 00, 02, 16, 0b1001010110110000 }, /* 30 29 29 30 29 30 29 30 30 29 30 30 355
61 1981 */ { 00, 02, 05, 0b0100100110110000 }, /* 29 30 29 29 30 29 29 30 30 29 30 30 354
62 1982 */ { 04, 01, 25, 0b1010010011011000 }, /* 30 29 30 29 29 30 29 29 30 30 29 30 30 384
63 1983 */ { 00, 02, 13, 0b1010010010110000 }, /* 30 29 30 29 29 30 29 29 30 29 30 30 354
64 1984 */ { 10, 02, 02, 0b1011001001011000 }, /* 30 29 30 30 29 29 30 29 29 30 29 30 30 384
65 1985 */ { 00, 02, 20, 0b0110101001010000 }, /* 29 30 30 29 30 29 30 29 29 30 29 30 354
66 1986 */ { 00, 02, 09, 0b0110110101000000 }, /* 29 30 30 29 30 30 29 30 29 30 29 29 354
67 1987 */ { 06, 01, 29, 0b1011010110101000 }, /* 30 29 30 30 29 30 29 30 30 29 30 29 30 385
68 1988 */ { 00, 02, 18, 0b0010101101100000 }, /* 29 29 30 29 30 29 30 30 29 30 30 29 354
69 1989 */ { 00, 02, 06, 0b1001010110110000 }, /* 30 29 29 30 29 30 29 30 30 29 30 30 355
70 1990 */ { 05, 01, 27, 0b0100100110111000 }, /* 29 30 29 29 30 29 29 30 30 29 30 30 30 384
71 1991 */ { 00, 02, 15, 0b0100100101110000 }, /* 29 30 29 29 30 29 29 30 29 30 30 30 354
72 1992 */ { 00, 02, 04, 0b0110010010110000 }, /* 29 30 30 29 29 30 29 29 30 29 30 30 354
73 1993 */ { 03, 01, 23, 0b0110101001010000 }, /* 29 30 30 29 30 29 30 29 29 30 29 30 29 383
74 1994 */ { 00, 02, 10, 0b1110101001010000 }, /* 30 30 30 29 30 29 30 29 29 30 29 30 355
75 1995 */ { 08, 01, 31, 0b0110110101001000 }, /* 29 30 30 29 30 30 29 30 29 30 29 29 30 384
76 1996 */ { 00, 02, 19, 0b0101101011010000 }, /* 29 30 29 30 30 29 30 29 30 30 29 30 355
77 1997 */ { 00, 02, 08, 0b0010101101100000 }, /* 29 29 30 29 30 29 30 30 29 30 30 29 354
78 1998 */ { 05, 01, 28, 0b1001001101110000 }, /* 30 29 29 30 29 29 30 30 29 30 30 30 29 384
79 1999 */ { 00, 02, 16, 0b1001001011100000 }, /* 30 29 29 30 29 29 30 29 30 30 30 29 354
80 2000 */ { 00, 02, 05, 0b1100100101100000 }, /* 30 30 29 29 30 29 29 30 29 30 30 29 354
81 2001 */ { 04, 01, 24, 0b1110010010101000 }, /* 30 30 30 29 29 30 29 29 30 29 30 29 30 384
82 2002 */ { 00, 02, 12, 0b1101010010100000 }, /* 30 30 29 30 29 30 29 29 30 29 30 29 354
83 2003 */ { 00, 02, 01, 0b1101101001010000 }, /* 30 30 29 30 30 29 30 29 29 30 29 30 355
84 2004 */ { 02, 01, 22, 0b0101101010101000 }, /* 29 30 29 30 30 29 30 29 30 29 30 29 30 384
85 2005 */ { 00, 02, 09, 0b0101011011000000 }, /* 29 30 29 30 29 30 30 29 30 30 29 29 354
86 2006 */ { 07, 01, 29, 0b1010101011011000 }, /* 30 29 30 29 30 29 30 29 30 30 29 30 30 385
87 2007 */ { 00, 02, 18, 0b0010010111010000 }, /* 29 29 30 29 29 30 29 30 30 30 29 30 354
88 2008 */ { 00, 02, 07, 0b1001001011010000 }, /* 30 29 29 30 29 29 30 29 30 30 29 30 354
89 2009 */ { 05, 01, 26, 0b1100100101011000 }, /* 30 30 29 29 30 29 29 30 29 30 29 30 30 384
90 2010 */ { 00, 02, 14, 0b1010100101010000 }, /* 30 29 30 29 30 29 29 30 29 30 29 30 354
91 2011 */ { 00, 02, 03, 0b1011010010100000 }, /* 30 29 30 30 29 30 29 29 30 29 30 29 354
92 2012 */ { 03, 01, 23, 0b1011101001010000 }, /* 30 29 30 30 30 29 30 29 29 30 29 30 29 384
93 2013 */ { 00, 02, 10, 0b1011010101010000 }, /* 30 29 30 30 29 30 29 30 29 30 29 30 355
94 2014 */ { 09, 01, 31, 0b0101010110101000 }, /* 29 30 29 30 29 30 29 30 30 29 30 29 30 384
95 2015 */ { 00, 02, 19, 0b0100101110100000 }, /* 29 30 29 29 30 29 30 30 30 29 30 29 354
96 2016 */ { 00, 02, 08, 0b1010010110110000 }, /* 30 29 30 29 29 30 29 30 30 29 30 30 355
97 2017 */ { 05, 01, 28, 0b0101001010111000 }, /* 29 30 29 30 29 29 30 29 30 29 30 30 30 384
98 2018 */ { 00, 02, 16, 0b0101001010110000 }, /* 29 30 29 30 29 29 30 29 30 29 30 30 354
99 2019 */ { 00, 02, 05, 0b1010100101010000 }, /* 30 29 30 29 30 29 29 30 29 30 29 30 354
100 2020 */ { 04, 01, 25, 0b1011010010101000 }, /* 30 29 30 30 29 30 29 29 30 29 30 29 30 384
101 2021 */ { 00, 02, 12, 0b0110101010100000 }, /* 29 30 30 29 30 29 30 29 30 29 30 29 354
102 2022 */ { 00, 02, 01, 0b1010110101010000 }, /* 30 29 30 29 30 30 29 30 29 30 29 30 355
103 2023 */ { 02, 01, 22, 0b0101010110101000 }, /* 29 30 29 30 29 30 29 30 30 29 30 29 30 384
104 2024 */ { 00, 02, 10, 0b0100101101100000 }, /* 29 30 29 29 30 29 30 30 29 30 30 29 354
105 2025 */ { 06, 01, 29, 0b1010010101110000 }, /* 30 29 30 29 29 30 29 30 29 30 30 30 29 384
106 2026 */ { 00, 02, 17, 0b1010010101110000 }, /* 30 29 30 29 29 30 29 30 29 30 30 30 355
107 2027 */ { 00, 02, 07, 0b0101001001110000 }, /* 29 30 29 30 29 29 30 29 29 30 30 30 354
108 2028 */ { 05, 01, 27, 0b0110100100110000 }, /* 29 30 30 29 30 29 29 30 29 29 30 30 29 383
109 2029 */ { 00, 02, 13, 0b1101100100110000 }, /* 30 30 29 30 30 29 29 30 29 29 30 30 355
110 2030 */ { 00, 02, 03, 0b0101101010100000 }, /* 29 30 29 30 30 29 30 29 30 29 30 29 354
111 2031 */ { 03, 01, 23, 0b1010101101010000 }, /* 30 29 30 29 30 29 30 30 29 30 29 30 29 384
112 2032 */ { 00, 02, 11, 0b1001011011010000 }, /* 30 29 29 30 29 30 30 29 30 30 29 30 355
113 2033 */ { 11, 01, 31, 0b0100101011101000 }, /* 29 30 29 29 30 29 30 29 30 30 30 29 30 384
114 2034 */ { 00, 02, 19, 0b0100101011100000 }, /* 29 30 29 29 30 29 30 29 30 30 30 29 354
115 2035 */ { 00, 02, 08, 0b1010010011010000 }, /* 30 29 30 29 29 30 29 29 30 30 29 30 354
116 2036 */ { 06, 01, 28, 0b1101001001101000 }, /* 30 30 29 30 29 29 30 29 29 30 30 29 30 384
117 2037 */ { 00, 02, 15, 0b1101001001010000 }, /* 30 30 29 30 29 29 30 29 29 30 29 30 354
118 2038 */ { 00, 02, 04, 0b1101010100100000 }, /* 30 30 29 30 29 30 29 30 29 29 30 29 354
119 2039 */ { 05, 01, 24, 0b1101101010100000 }, /* 30 30 29 30 30 29 30 29 30 29 30 29 29 384
120 2040 */ { 00, 02, 12, 0b1011011010100000 }, /* 30 29 30 30 29 30 30 29 30 29 30 29 355
121 2041 */ { 00, 02, 01, 0b1001011011010000 }, /* 30 29 29 30 29 30 30 29 30 30 29 30 355
122 2042 */ { 02, 01, 22, 0b0100101011011000 }, /* 29 30 29 29 30 29 30 29 30 30 29 30 30 384
123 2043 */ { 00, 02, 10, 0b0100100110110000 }, /* 29 30 29 29 30 29 29 30 30 29 30 30 354
124 2044 */ { 07, 01, 30, 0b1010010010111000 }, /* 30 29 30 29 29 30 29 29 30 29 30 30 30 384
125 2045 */ { 00, 02, 17, 0b1010010010110000 }, /* 30 29 30 29 29 30 29 29 30 29 30 30 354
126 2046 */ { 00, 02, 06, 0b1011001001010000 }, /* 30 29 30 30 29 29 30 29 29 30 29 30 354
127 2047 */ { 05, 01, 26, 0b1011010100101000 }, /* 30 29 30 30 29 30 29 30 29 29 30 29 30 384
128 2048 */ { 00, 02, 14, 0b0110110101000000 }, /* 29 30 30 29 30 30 29 30 29 30 29 29 354
129 2049 */ { 00, 02, 02, 0b1010110110100000 }, /* 30 29 30 29 30 30 29 30 30 29 30 29 355
130 */ };
131
132 internal override int MinCalendarYear => MinLunisolarYear;
133
134 internal override int MaxCalendarYear => MaxLunisolarYear;
135
136 internal override DateTime MinDate => s_minDate;
137
138 internal override DateTime MaxDate => s_maxDate;
139
140 internal override EraInfo[]? CalEraInfo => JapaneseCalendar.GetEraInfo();
141
142 internal override int GetYearInfo(int lunarYear, int index)
143 {
144 if (lunarYear < MinLunisolarYear || lunarYear > MaxLunisolarYear)
145 {
146 throw new ArgumentOutOfRangeException(
147 "year",
148 lunarYear,
149 SR.Format(SR.ArgumentOutOfRange_Range, MinLunisolarYear, MaxLunisolarYear));
150 }
151
152 return s_yinfo[lunarYear - MinLunisolarYear, index];
153 }
154
155 internal override int GetYear(int year, DateTime time)
156 {
157 return _helper.GetYear(year, time);
158 }
159
160 internal override int GetGregorianYear(int year, int era)
161 {
162 return _helper.GetGregorianYear(year, era);
163 }
164
165 /// <summary>
166 /// Trim off the eras that are before our date range
167 /// </summary>
168 private static EraInfo[] TrimEras(EraInfo[] baseEras)
169 {
170 EraInfo[] newEras = new EraInfo[baseEras.Length];
171 int newIndex = 0;
172
173 // Eras have most recent first, so start with that
174 for (int i = 0; i < baseEras.Length; i++)
175 {
176 // If this one's minimum year is bigger than our maximum year
177 // then we can't use it.
178 if (baseEras[i].yearOffset + baseEras[i].minEraYear >= MaxLunisolarYear)
179 {
180 // skip this one.
181 continue;
182 }
183
184 // If this one's maximum era is less than our minimum era
185 // then we've gotten too low in the era #s, so we're done
186 if (baseEras[i].yearOffset + baseEras[i].maxEraYear < MinLunisolarYear)
187 {
188 break;
189 }
190
191 // Wasn't too large or too small, can use this one
192 newEras[newIndex] = baseEras[i];
193 newIndex++;
194 }
195
196 // If we didn't copy any then something was wrong, just return base
197 if (newIndex == 0) return baseEras;
198
199 Array.Resize(ref newEras!, newIndex);
200 return newEras;
201 }
202
203 public JapaneseLunisolarCalendar()
204 {
205 _helper = new GregorianCalendarHelper(this, TrimEras(JapaneseCalendar.GetEraInfo()));
206 }
207
208 public override int GetEra(DateTime time) => _helper.GetEra(time);
209
210 internal override CalendarId BaseCalendarID => CalendarId.JAPAN;
211
212 internal override CalendarId ID => CalendarId.JAPANESELUNISOLAR;
213
214 public override int[] Eras => _helper.Eras;
215 }
216 }
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