ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 1 | // Copyright 2006-2008 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 29 | // This file relies on the fact that the following declarations have been made |
| 30 | // in v8natives.js: |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 31 | // const $isFinite = GlobalIsFinite; |
| 32 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 33 | // ------------------------------------------------------------------- |
| 34 | |
| 35 | // This file contains date support implemented in JavaScript. |
| 36 | |
| 37 | |
| 38 | // Keep reference to original values of some global properties. This |
| 39 | // has the added benefit that the code in this file is isolated from |
| 40 | // changes to these properties. |
| 41 | const $Date = global.Date; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 42 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 43 | // Helper function to throw error. |
| 44 | function ThrowDateTypeError() { |
| 45 | throw new $TypeError('this is not a Date object.'); |
| 46 | } |
| 47 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 48 | // ECMA 262 - 5.2 |
| 49 | function Modulo(value, remainder) { |
| 50 | var mod = value % remainder; |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 51 | // Guard against returning -0. |
| 52 | if (mod == 0) return 0; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 53 | return mod >= 0 ? mod : mod + remainder; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 54 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 55 | |
| 56 | |
| 57 | function TimeWithinDay(time) { |
| 58 | return Modulo(time, msPerDay); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 59 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 60 | |
| 61 | |
| 62 | // ECMA 262 - 15.9.1.3 |
| 63 | function DaysInYear(year) { |
| 64 | if (year % 4 != 0) return 365; |
| 65 | if ((year % 100 == 0) && (year % 400 != 0)) return 365; |
| 66 | return 366; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 67 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 68 | |
| 69 | |
| 70 | function DayFromYear(year) { |
| 71 | return 365 * (year-1970) |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 72 | + FLOOR((year-1969)/4) |
| 73 | - FLOOR((year-1901)/100) |
| 74 | + FLOOR((year-1601)/400); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 75 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 76 | |
| 77 | |
| 78 | function TimeFromYear(year) { |
| 79 | return msPerDay * DayFromYear(year); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 80 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 81 | |
| 82 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 83 | function InLeapYear(time) { |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 84 | return DaysInYear(YEAR_FROM_TIME(time)) == 366 ? 1 : 0; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 85 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 86 | |
| 87 | |
| 88 | function DayWithinYear(time) { |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 89 | return DAY(time) - DayFromYear(YEAR_FROM_TIME(time)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 90 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 91 | |
| 92 | |
| 93 | // ECMA 262 - 15.9.1.9 |
| 94 | function EquivalentYear(year) { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 95 | // Returns an equivalent year in the range [2008-2035] matching |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 96 | // - leap year. |
| 97 | // - week day of first day. |
| 98 | var time = TimeFromYear(year); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 99 | var recent_year = (InLeapYear(time) == 0 ? 1967 : 1956) + |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 100 | (WeekDay(time) * 12) % 28; |
| 101 | // Find the year in the range 2008..2037 that is equivalent mod 28. |
| 102 | // Add 3*28 to give a positive argument to the modulus operator. |
| 103 | return 2008 + (recent_year + 3*28 - 2008) % 28; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 104 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 105 | |
| 106 | |
| 107 | function EquivalentTime(t) { |
| 108 | // The issue here is that some library calls don't work right for dates |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 109 | // that cannot be represented using a non-negative signed 32 bit integer |
| 110 | // (measured in whole seconds based on the 1970 epoch). |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 111 | // We solve this by mapping the time to a year with same leap-year-ness |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 112 | // and same starting day for the year. The ECMAscript specification says |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 113 | // we must do this, but for compatibility with other browsers, we use |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 114 | // the actual year if it is in the range 1970..2037 |
| 115 | if (t >= 0 && t <= 2.1e12) return t; |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 116 | |
| 117 | var day = MakeDay(EquivalentYear(YEAR_FROM_TIME(t)), |
| 118 | MONTH_FROM_TIME(t), |
| 119 | DATE_FROM_TIME(t)); |
| 120 | return MakeDate(day, TimeWithinDay(t)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 121 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 122 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 123 | |
whesse@chromium.org | 421a0f4 | 2010-03-30 15:09:23 +0000 | [diff] [blame] | 124 | // local_time_offset is initialized when the DST_offset_cache is missed. |
| 125 | // It must not be used until after a call to DaylightSavingsOffset(). |
| 126 | // In this way, only one check, for a DST cache miss, is needed. |
| 127 | var local_time_offset; |
| 128 | |
| 129 | |
| 130 | // Because computing the DST offset is an expensive operation, |
| 131 | // we keep a cache of the last computed DST offset along with a time interval |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 132 | // where we know the cache is valid. |
whesse@chromium.org | 421a0f4 | 2010-03-30 15:09:23 +0000 | [diff] [blame] | 133 | // When the cache is valid, local_time_offset is also valid. |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 134 | var DST_offset_cache = { |
| 135 | // Cached DST offset. |
| 136 | offset: 0, |
| 137 | // Time interval where the cached offset is valid. |
| 138 | start: 0, end: -1, |
| 139 | // Size of next interval expansion. |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 140 | increment: 0, |
| 141 | initial_increment: 19 * msPerDay |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 142 | }; |
| 143 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 144 | |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 145 | // NOTE: The implementation relies on the fact that no time zones have |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 146 | // more than one daylight savings offset change per 19 days. |
| 147 | // |
| 148 | // In Egypt in 2010 they decided to suspend DST during Ramadan. This |
| 149 | // led to a short interval where DST is in effect from September 10 to |
| 150 | // September 30. |
| 151 | // |
sgjesse@chromium.org | b9d7da1 | 2009-08-05 08:38:10 +0000 | [diff] [blame] | 152 | // If this function is called with NaN it returns NaN. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 153 | function DaylightSavingsOffset(t) { |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 154 | // Load the cache object from the builtins object. |
| 155 | var cache = DST_offset_cache; |
| 156 | |
| 157 | // Cache the start and the end in local variables for fast access. |
| 158 | var start = cache.start; |
| 159 | var end = cache.end; |
| 160 | |
| 161 | if (start <= t) { |
| 162 | // If the time fits in the cached interval, return the cached offset. |
| 163 | if (t <= end) return cache.offset; |
| 164 | |
whesse@chromium.org | 421a0f4 | 2010-03-30 15:09:23 +0000 | [diff] [blame] | 165 | // If the cache misses, the local_time_offset may not be initialized. |
| 166 | if (IS_UNDEFINED(local_time_offset)) { |
| 167 | local_time_offset = %DateLocalTimeOffset(); |
| 168 | } |
| 169 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 170 | // Compute a possible new interval end. |
| 171 | var new_end = end + cache.increment; |
| 172 | |
| 173 | if (t <= new_end) { |
| 174 | var end_offset = %DateDaylightSavingsOffset(EquivalentTime(new_end)); |
| 175 | if (cache.offset == end_offset) { |
| 176 | // If the offset at the end of the new interval still matches |
| 177 | // the offset in the cache, we grow the cached time interval |
| 178 | // and return the offset. |
| 179 | cache.end = new_end; |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 180 | cache.increment = cache.initial_increment; |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 181 | return end_offset; |
| 182 | } else { |
| 183 | var offset = %DateDaylightSavingsOffset(EquivalentTime(t)); |
| 184 | if (offset == end_offset) { |
| 185 | // The offset at the given time is equal to the offset at the |
| 186 | // new end of the interval, so that means that we've just skipped |
| 187 | // the point in time where the DST offset change occurred. Updated |
| 188 | // the interval to reflect this and reset the increment. |
| 189 | cache.start = t; |
| 190 | cache.end = new_end; |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 191 | cache.increment = cache.initial_increment; |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 192 | } else { |
| 193 | // The interval contains a DST offset change and the given time is |
| 194 | // before it. Adjust the increment to avoid a linear search for |
| 195 | // the offset change point and change the end of the interval. |
| 196 | cache.increment /= 3; |
| 197 | cache.end = t; |
| 198 | } |
| 199 | // Update the offset in the cache and return it. |
| 200 | cache.offset = offset; |
| 201 | return offset; |
| 202 | } |
| 203 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 204 | } |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 205 | |
whesse@chromium.org | 421a0f4 | 2010-03-30 15:09:23 +0000 | [diff] [blame] | 206 | // If the cache misses, the local_time_offset may not be initialized. |
| 207 | if (IS_UNDEFINED(local_time_offset)) { |
| 208 | local_time_offset = %DateLocalTimeOffset(); |
| 209 | } |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 210 | // Compute the DST offset for the time and shrink the cache interval |
| 211 | // to only contain the time. This allows fast repeated DST offset |
| 212 | // computations for the same time. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 213 | var offset = %DateDaylightSavingsOffset(EquivalentTime(t)); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 214 | cache.offset = offset; |
| 215 | cache.start = cache.end = t; |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 216 | cache.increment = cache.initial_increment; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 217 | return offset; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 218 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 219 | |
| 220 | |
| 221 | var timezone_cache_time = $NaN; |
| 222 | var timezone_cache_timezone; |
| 223 | |
| 224 | function LocalTimezone(t) { |
sgjesse@chromium.org | b9d7da1 | 2009-08-05 08:38:10 +0000 | [diff] [blame] | 225 | if (NUMBER_IS_NAN(t)) return ""; |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 226 | if (t == timezone_cache_time) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 227 | return timezone_cache_timezone; |
| 228 | } |
| 229 | var timezone = %DateLocalTimezone(EquivalentTime(t)); |
| 230 | timezone_cache_time = t; |
| 231 | timezone_cache_timezone = timezone; |
| 232 | return timezone; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 233 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 234 | |
| 235 | |
| 236 | function WeekDay(time) { |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 237 | return Modulo(DAY(time) + 4, 7); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 238 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 239 | |
| 240 | |
| 241 | function LocalTime(time) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 242 | if (NUMBER_IS_NAN(time)) return time; |
whesse@chromium.org | 421a0f4 | 2010-03-30 15:09:23 +0000 | [diff] [blame] | 243 | // DaylightSavingsOffset called before local_time_offset used. |
| 244 | return time + DaylightSavingsOffset(time) + local_time_offset; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 245 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 246 | |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 247 | |
| 248 | var ltcache = { |
vegorov@chromium.org | 4284196 | 2010-10-18 11:18:59 +0000 | [diff] [blame] | 249 | key: null, |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 250 | val: null |
| 251 | }; |
| 252 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 253 | function LocalTimeNoCheck(time) { |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 254 | var ltc = ltcache; |
| 255 | if (%_ObjectEquals(time, ltc.key)) return ltc.val; |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 256 | if (time < -MAX_TIME_MS || time > MAX_TIME_MS) { |
| 257 | return $NaN; |
| 258 | } |
| 259 | |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 260 | // Inline the DST offset cache checks for speed. |
whesse@chromium.org | 421a0f4 | 2010-03-30 15:09:23 +0000 | [diff] [blame] | 261 | // The cache is hit, or DaylightSavingsOffset is called, |
| 262 | // before local_time_offset is used. |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 263 | var cache = DST_offset_cache; |
| 264 | if (cache.start <= time && time <= cache.end) { |
| 265 | var dst_offset = cache.offset; |
| 266 | } else { |
| 267 | var dst_offset = DaylightSavingsOffset(time); |
| 268 | } |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 269 | ltc.key = time; |
| 270 | return (ltc.val = time + local_time_offset + dst_offset); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 271 | } |
| 272 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 273 | |
| 274 | function UTC(time) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 275 | if (NUMBER_IS_NAN(time)) return time; |
whesse@chromium.org | 421a0f4 | 2010-03-30 15:09:23 +0000 | [diff] [blame] | 276 | // local_time_offset is needed before the call to DaylightSavingsOffset, |
| 277 | // so it may be uninitialized. |
| 278 | if (IS_UNDEFINED(local_time_offset)) { |
| 279 | local_time_offset = %DateLocalTimeOffset(); |
| 280 | } |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 281 | var tmp = time - local_time_offset; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 282 | return tmp - DaylightSavingsOffset(tmp); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 283 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 284 | |
| 285 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 286 | // ECMA 262 - 15.9.1.11 |
| 287 | function MakeTime(hour, min, sec, ms) { |
| 288 | if (!$isFinite(hour)) return $NaN; |
| 289 | if (!$isFinite(min)) return $NaN; |
| 290 | if (!$isFinite(sec)) return $NaN; |
| 291 | if (!$isFinite(ms)) return $NaN; |
| 292 | return TO_INTEGER(hour) * msPerHour |
| 293 | + TO_INTEGER(min) * msPerMinute |
| 294 | + TO_INTEGER(sec) * msPerSecond |
| 295 | + TO_INTEGER(ms); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 296 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 297 | |
| 298 | |
| 299 | // ECMA 262 - 15.9.1.12 |
| 300 | function TimeInYear(year) { |
| 301 | return DaysInYear(year) * msPerDay; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 302 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 303 | |
| 304 | |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 305 | var ymd_from_time_cache = [$NaN, $NaN, $NaN]; |
| 306 | var ymd_from_time_cached_time = $NaN; |
| 307 | |
| 308 | function YearFromTime(t) { |
| 309 | if (t !== ymd_from_time_cached_time) { |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 310 | if (!$isFinite(t)) { |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 311 | return $NaN; |
| 312 | } |
| 313 | |
| 314 | %DateYMDFromTime(t, ymd_from_time_cache); |
| 315 | ymd_from_time_cached_time = t |
| 316 | } |
| 317 | |
| 318 | return ymd_from_time_cache[0]; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 319 | } |
| 320 | |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 321 | function MonthFromTime(t) { |
| 322 | if (t !== ymd_from_time_cached_time) { |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 323 | if (!$isFinite(t)) { |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 324 | return $NaN; |
| 325 | } |
| 326 | %DateYMDFromTime(t, ymd_from_time_cache); |
| 327 | ymd_from_time_cached_time = t |
| 328 | } |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 329 | |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 330 | return ymd_from_time_cache[1]; |
| 331 | } |
| 332 | |
| 333 | function DateFromTime(t) { |
| 334 | if (t !== ymd_from_time_cached_time) { |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 335 | if (!$isFinite(t)) { |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 336 | return $NaN; |
| 337 | } |
| 338 | |
| 339 | %DateYMDFromTime(t, ymd_from_time_cache); |
| 340 | ymd_from_time_cached_time = t |
ager@chromium.org | 381abbb | 2009-02-25 13:23:22 +0000 | [diff] [blame] | 341 | } |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 342 | |
| 343 | return ymd_from_time_cache[2]; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 344 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 345 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 346 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 347 | // Compute number of days given a year, month, date. |
| 348 | // Note that month and date can lie outside the normal range. |
| 349 | // For example: |
| 350 | // MakeDay(2007, -4, 20) --> MakeDay(2006, 8, 20) |
| 351 | // MakeDay(2007, -33, 1) --> MakeDay(2004, 3, 1) |
| 352 | // MakeDay(2007, 14, -50) --> MakeDay(2007, 8, 11) |
| 353 | function MakeDay(year, month, date) { |
| 354 | if (!$isFinite(year) || !$isFinite(month) || !$isFinite(date)) return $NaN; |
| 355 | |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 356 | // Convert to integer and map -0 to 0. |
| 357 | year = TO_INTEGER_MAP_MINUS_ZERO(year); |
| 358 | month = TO_INTEGER_MAP_MINUS_ZERO(month); |
| 359 | date = TO_INTEGER_MAP_MINUS_ZERO(date); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 360 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 361 | if (year < kMinYear || year > kMaxYear || |
| 362 | month < kMinMonth || month > kMaxMonth || |
| 363 | date < kMinDate || date > kMaxDate) { |
| 364 | return $NaN; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 365 | } |
| 366 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 367 | // Now we rely on year, month and date being SMIs. |
| 368 | return %DateMakeDay(year, month, date); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 369 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 370 | |
| 371 | |
| 372 | // ECMA 262 - 15.9.1.13 |
| 373 | function MakeDate(day, time) { |
| 374 | if (!$isFinite(day)) return $NaN; |
| 375 | if (!$isFinite(time)) return $NaN; |
| 376 | return day * msPerDay + time; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 377 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 378 | |
| 379 | |
| 380 | // ECMA 262 - 15.9.1.14 |
| 381 | function TimeClip(time) { |
| 382 | if (!$isFinite(time)) return $NaN; |
| 383 | if ($abs(time) > 8.64E15) return $NaN; |
| 384 | return TO_INTEGER(time); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 385 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 386 | |
| 387 | |
kasperl@chromium.org | 68ac009 | 2009-07-09 06:00:35 +0000 | [diff] [blame] | 388 | // The Date cache is used to limit the cost of parsing the same Date |
| 389 | // strings over and over again. |
| 390 | var Date_cache = { |
| 391 | // Cached time value. |
| 392 | time: $NaN, |
| 393 | // Cached year when interpreting the time as a local time. Only |
| 394 | // valid when the time matches cached time. |
| 395 | year: $NaN, |
| 396 | // String input for which the cached time is valid. |
| 397 | string: null |
| 398 | }; |
| 399 | |
| 400 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 401 | %SetCode($Date, function(year, month, date, hours, minutes, seconds, ms) { |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 402 | if (!%_IsConstructCall()) { |
| 403 | // ECMA 262 - 15.9.2 |
| 404 | return (new $Date()).toString(); |
| 405 | } |
| 406 | |
| 407 | // ECMA 262 - 15.9.3 |
| 408 | var argc = %_ArgumentsLength(); |
| 409 | var value; |
| 410 | if (argc == 0) { |
| 411 | value = %DateCurrentTime(); |
| 412 | |
| 413 | } else if (argc == 1) { |
| 414 | if (IS_NUMBER(year)) { |
| 415 | value = TimeClip(year); |
kasperl@chromium.org | 68ac009 | 2009-07-09 06:00:35 +0000 | [diff] [blame] | 416 | |
| 417 | } else if (IS_STRING(year)) { |
| 418 | // Probe the Date cache. If we already have a time value for the |
| 419 | // given time, we re-use that instead of parsing the string again. |
| 420 | var cache = Date_cache; |
| 421 | if (cache.string === year) { |
| 422 | value = cache.time; |
| 423 | } else { |
| 424 | value = DateParse(year); |
sgjesse@chromium.org | b9d7da1 | 2009-08-05 08:38:10 +0000 | [diff] [blame] | 425 | if (!NUMBER_IS_NAN(value)) { |
| 426 | cache.time = value; |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 427 | cache.year = YEAR_FROM_TIME(LocalTimeNoCheck(value)); |
sgjesse@chromium.org | b9d7da1 | 2009-08-05 08:38:10 +0000 | [diff] [blame] | 428 | cache.string = year; |
| 429 | } |
kasperl@chromium.org | 68ac009 | 2009-07-09 06:00:35 +0000 | [diff] [blame] | 430 | } |
| 431 | |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 432 | } else { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 433 | // According to ECMA 262, no hint should be given for this |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 434 | // conversion. However, ToPrimitive defaults to STRING_HINT for |
| 435 | // Date objects which will lose precision when the Date |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 436 | // constructor is called with another Date object as its |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 437 | // argument. We therefore use NUMBER_HINT for the conversion, |
| 438 | // which is the default for everything else than Date objects. |
| 439 | // This makes us behave like KJS and SpiderMonkey. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 440 | var time = ToPrimitive(year, NUMBER_HINT); |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 441 | value = IS_STRING(time) ? DateParse(time) : TimeClip(ToNumber(time)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 442 | } |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 443 | |
| 444 | } else { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 445 | year = ToNumber(year); |
| 446 | month = ToNumber(month); |
| 447 | date = argc > 2 ? ToNumber(date) : 1; |
| 448 | hours = argc > 3 ? ToNumber(hours) : 0; |
| 449 | minutes = argc > 4 ? ToNumber(minutes) : 0; |
| 450 | seconds = argc > 5 ? ToNumber(seconds) : 0; |
| 451 | ms = argc > 6 ? ToNumber(ms) : 0; |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 452 | year = (!NUMBER_IS_NAN(year) && 0 <= TO_INTEGER(year) && TO_INTEGER(year) <= 99) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 453 | ? 1900 + TO_INTEGER(year) : year; |
| 454 | var day = MakeDay(year, month, date); |
| 455 | var time = MakeTime(hours, minutes, seconds, ms); |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 456 | value = TimeClip(UTC(MakeDate(day, time))); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 457 | } |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 458 | %_SetValueOf(this, value); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 459 | }); |
| 460 | |
| 461 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 462 | %FunctionSetPrototype($Date, new $Date($NaN)); |
| 463 | |
| 464 | |
| 465 | var WeekDays = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']; |
| 466 | var Months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']; |
| 467 | |
| 468 | |
| 469 | function TwoDigitString(value) { |
| 470 | return value < 10 ? "0" + value : "" + value; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 471 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 472 | |
| 473 | |
| 474 | function DateString(time) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 475 | return WeekDays[WeekDay(time)] + ' ' |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 476 | + Months[MonthFromTime(time)] + ' ' |
| 477 | + TwoDigitString(DateFromTime(time)) + ' ' |
| 478 | + YearFromTime(time); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 479 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 480 | |
| 481 | |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 482 | var LongWeekDays = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']; |
| 483 | var LongMonths = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December']; |
| 484 | |
| 485 | |
| 486 | function LongDateString(time) { |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 487 | return LongWeekDays[WeekDay(time)] + ', ' |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 488 | + LongMonths[MonthFromTime(time)] + ' ' |
| 489 | + TwoDigitString(DateFromTime(time)) + ', ' |
| 490 | + YearFromTime(time); |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 491 | } |
| 492 | |
| 493 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 494 | function TimeString(time) { |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 495 | return TwoDigitString(HOUR_FROM_TIME(time)) + ':' |
| 496 | + TwoDigitString(MIN_FROM_TIME(time)) + ':' |
| 497 | + TwoDigitString(SEC_FROM_TIME(time)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 498 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 499 | |
| 500 | |
| 501 | function LocalTimezoneString(time) { |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 502 | var old_timezone = timezone_cache_timezone; |
| 503 | var timezone = LocalTimezone(time); |
| 504 | if (old_timezone && timezone != old_timezone) { |
| 505 | // If the timezone string has changed from the one that we cached, |
| 506 | // the local time offset may now be wrong. So we need to update it |
| 507 | // and try again. |
| 508 | local_time_offset = %DateLocalTimeOffset(); |
| 509 | // We also need to invalidate the DST cache as the new timezone may have |
| 510 | // different DST times. |
| 511 | var dst_cache = DST_offset_cache; |
| 512 | dst_cache.start = 0; |
| 513 | dst_cache.end = -1; |
| 514 | } |
| 515 | |
sgjesse@chromium.org | b9d7da1 | 2009-08-05 08:38:10 +0000 | [diff] [blame] | 516 | var timezoneOffset = |
whesse@chromium.org | 421a0f4 | 2010-03-30 15:09:23 +0000 | [diff] [blame] | 517 | (DaylightSavingsOffset(time) + local_time_offset) / msPerMinute; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 518 | var sign = (timezoneOffset >= 0) ? 1 : -1; |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 519 | var hours = FLOOR((sign * timezoneOffset)/60); |
| 520 | var min = FLOOR((sign * timezoneOffset)%60); |
sgjesse@chromium.org | b9d7da1 | 2009-08-05 08:38:10 +0000 | [diff] [blame] | 521 | var gmt = ' GMT' + ((sign == 1) ? '+' : '-') + |
| 522 | TwoDigitString(hours) + TwoDigitString(min); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 523 | return gmt + ' (' + timezone + ')'; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 524 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 525 | |
| 526 | |
| 527 | function DatePrintString(time) { |
| 528 | return DateString(time) + ' ' + TimeString(time); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 529 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 530 | |
| 531 | // ------------------------------------------------------------------- |
| 532 | |
kasperl@chromium.org | 68ac009 | 2009-07-09 06:00:35 +0000 | [diff] [blame] | 533 | // Reused output buffer. Used when parsing date strings. |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 534 | var parse_buffer = $Array(8); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 535 | |
| 536 | // ECMA 262 - 15.9.4.2 |
| 537 | function DateParse(string) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 538 | var arr = %DateParseString(ToString(string), parse_buffer); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 539 | if (IS_NULL(arr)) return $NaN; |
| 540 | |
| 541 | var day = MakeDay(arr[0], arr[1], arr[2]); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 542 | var time = MakeTime(arr[3], arr[4], arr[5], arr[6]); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 543 | var date = MakeDate(day, time); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 544 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 545 | if (IS_NULL(arr[7])) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 546 | return TimeClip(UTC(date)); |
| 547 | } else { |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 548 | return TimeClip(date - arr[7] * 1000); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 549 | } |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 550 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 551 | |
| 552 | |
| 553 | // ECMA 262 - 15.9.4.3 |
| 554 | function DateUTC(year, month, date, hours, minutes, seconds, ms) { |
| 555 | year = ToNumber(year); |
| 556 | month = ToNumber(month); |
| 557 | var argc = %_ArgumentsLength(); |
| 558 | date = argc > 2 ? ToNumber(date) : 1; |
| 559 | hours = argc > 3 ? ToNumber(hours) : 0; |
| 560 | minutes = argc > 4 ? ToNumber(minutes) : 0; |
| 561 | seconds = argc > 5 ? ToNumber(seconds) : 0; |
| 562 | ms = argc > 6 ? ToNumber(ms) : 0; |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 563 | year = (!NUMBER_IS_NAN(year) && 0 <= TO_INTEGER(year) && TO_INTEGER(year) <= 99) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 564 | ? 1900 + TO_INTEGER(year) : year; |
| 565 | var day = MakeDay(year, month, date); |
| 566 | var time = MakeTime(hours, minutes, seconds, ms); |
| 567 | return %_SetValueOf(this, TimeClip(MakeDate(day, time))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 568 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 569 | |
| 570 | |
| 571 | // Mozilla-specific extension. Returns the number of milliseconds |
| 572 | // elapsed since 1 January 1970 00:00:00 UTC. |
| 573 | function DateNow() { |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 574 | return %DateCurrentTime(); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 575 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 576 | |
| 577 | |
| 578 | // ECMA 262 - 15.9.5.2 |
| 579 | function DateToString() { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 580 | var t = DATE_VALUE(this); |
| 581 | if (NUMBER_IS_NAN(t)) return kInvalidDate; |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 582 | var time_zone_string = LocalTimezoneString(t); // May update local offset. |
| 583 | return DatePrintString(LocalTimeNoCheck(t)) + time_zone_string; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 584 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 585 | |
| 586 | |
| 587 | // ECMA 262 - 15.9.5.3 |
| 588 | function DateToDateString() { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 589 | var t = DATE_VALUE(this); |
| 590 | if (NUMBER_IS_NAN(t)) return kInvalidDate; |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 591 | return DateString(LocalTimeNoCheck(t)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 592 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 593 | |
| 594 | |
| 595 | // ECMA 262 - 15.9.5.4 |
| 596 | function DateToTimeString() { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 597 | var t = DATE_VALUE(this); |
| 598 | if (NUMBER_IS_NAN(t)) return kInvalidDate; |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 599 | var time_zone_string = LocalTimezoneString(t); // May update local offset. |
| 600 | return TimeString(LocalTimeNoCheck(t)) + time_zone_string; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 601 | } |
| 602 | |
| 603 | |
| 604 | // ECMA 262 - 15.9.5.5 |
| 605 | function DateToLocaleString() { |
| 606 | return DateToString.call(this); |
| 607 | } |
| 608 | |
| 609 | |
| 610 | // ECMA 262 - 15.9.5.6 |
| 611 | function DateToLocaleDateString() { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 612 | var t = DATE_VALUE(this); |
| 613 | if (NUMBER_IS_NAN(t)) return kInvalidDate; |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 614 | return LongDateString(LocalTimeNoCheck(t)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 615 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 616 | |
| 617 | |
ager@chromium.org | c27e4e7 | 2008-09-04 13:52:27 +0000 | [diff] [blame] | 618 | // ECMA 262 - 15.9.5.7 |
| 619 | function DateToLocaleTimeString() { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 620 | var t = DATE_VALUE(this); |
| 621 | if (NUMBER_IS_NAN(t)) return kInvalidDate; |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 622 | var lt = LocalTimeNoCheck(t); |
ager@chromium.org | c27e4e7 | 2008-09-04 13:52:27 +0000 | [diff] [blame] | 623 | return TimeString(lt); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 624 | } |
| 625 | |
| 626 | |
| 627 | // ECMA 262 - 15.9.5.8 |
| 628 | function DateValueOf() { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 629 | return DATE_VALUE(this); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 630 | } |
ager@chromium.org | c27e4e7 | 2008-09-04 13:52:27 +0000 | [diff] [blame] | 631 | |
| 632 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 633 | // ECMA 262 - 15.9.5.9 |
| 634 | function DateGetTime() { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 635 | return DATE_VALUE(this); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 636 | } |
| 637 | |
| 638 | |
| 639 | // ECMA 262 - 15.9.5.10 |
| 640 | function DateGetFullYear() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 641 | var t = DATE_VALUE(this); |
| 642 | if (NUMBER_IS_NAN(t)) return t; |
| 643 | var cache = Date_cache; |
| 644 | if (cache.time === t) return cache.year; |
| 645 | return YEAR_FROM_TIME(LocalTimeNoCheck(t)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 646 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 647 | |
| 648 | |
| 649 | // ECMA 262 - 15.9.5.11 |
| 650 | function DateGetUTCFullYear() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 651 | var t = DATE_VALUE(this); |
| 652 | if (NUMBER_IS_NAN(t)) return t; |
| 653 | return YEAR_FROM_TIME(t); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 654 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 655 | |
| 656 | |
| 657 | // ECMA 262 - 15.9.5.12 |
| 658 | function DateGetMonth() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 659 | var t = DATE_VALUE(this); |
| 660 | if (NUMBER_IS_NAN(t)) return t; |
| 661 | return MONTH_FROM_TIME(LocalTimeNoCheck(t)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 662 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 663 | |
| 664 | |
| 665 | // ECMA 262 - 15.9.5.13 |
| 666 | function DateGetUTCMonth() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 667 | var t = DATE_VALUE(this); |
| 668 | if (NUMBER_IS_NAN(t)) return t; |
| 669 | return MONTH_FROM_TIME(t); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 670 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 671 | |
| 672 | |
| 673 | // ECMA 262 - 15.9.5.14 |
| 674 | function DateGetDate() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 675 | var t = DATE_VALUE(this); |
| 676 | if (NUMBER_IS_NAN(t)) return t; |
| 677 | return DATE_FROM_TIME(LocalTimeNoCheck(t)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 678 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 679 | |
| 680 | |
| 681 | // ECMA 262 - 15.9.5.15 |
| 682 | function DateGetUTCDate() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 683 | var t = DATE_VALUE(this); |
| 684 | return NAN_OR_DATE_FROM_TIME(t); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 685 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 686 | |
| 687 | |
| 688 | // ECMA 262 - 15.9.5.16 |
| 689 | function DateGetDay() { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 690 | var t = %_ValueOf(this); |
| 691 | if (NUMBER_IS_NAN(t)) return t; |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 692 | return WeekDay(LocalTimeNoCheck(t)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 693 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 694 | |
| 695 | |
| 696 | // ECMA 262 - 15.9.5.17 |
| 697 | function DateGetUTCDay() { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 698 | var t = %_ValueOf(this); |
| 699 | if (NUMBER_IS_NAN(t)) return t; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 700 | return WeekDay(t); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 701 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 702 | |
| 703 | |
| 704 | // ECMA 262 - 15.9.5.18 |
| 705 | function DateGetHours() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 706 | var t = DATE_VALUE(this); |
| 707 | if (NUMBER_IS_NAN(t)) return t; |
| 708 | return HOUR_FROM_TIME(LocalTimeNoCheck(t)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 709 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 710 | |
| 711 | |
| 712 | // ECMA 262 - 15.9.5.19 |
| 713 | function DateGetUTCHours() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 714 | var t = DATE_VALUE(this); |
| 715 | if (NUMBER_IS_NAN(t)) return t; |
| 716 | return HOUR_FROM_TIME(t); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 717 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 718 | |
| 719 | |
| 720 | // ECMA 262 - 15.9.5.20 |
| 721 | function DateGetMinutes() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 722 | var t = DATE_VALUE(this); |
| 723 | if (NUMBER_IS_NAN(t)) return t; |
| 724 | return MIN_FROM_TIME(LocalTimeNoCheck(t)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 725 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 726 | |
| 727 | |
| 728 | // ECMA 262 - 15.9.5.21 |
| 729 | function DateGetUTCMinutes() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 730 | var t = DATE_VALUE(this); |
| 731 | return NAN_OR_MIN_FROM_TIME(t); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 732 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 733 | |
| 734 | |
| 735 | // ECMA 262 - 15.9.5.22 |
| 736 | function DateGetSeconds() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 737 | var t = DATE_VALUE(this); |
| 738 | if (NUMBER_IS_NAN(t)) return t; |
| 739 | return SEC_FROM_TIME(LocalTimeNoCheck(t)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 740 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 741 | |
| 742 | |
| 743 | // ECMA 262 - 15.9.5.23 |
| 744 | function DateGetUTCSeconds() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 745 | var t = DATE_VALUE(this); |
| 746 | return NAN_OR_SEC_FROM_TIME(t); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 747 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 748 | |
| 749 | |
| 750 | // ECMA 262 - 15.9.5.24 |
| 751 | function DateGetMilliseconds() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 752 | var t = DATE_VALUE(this); |
| 753 | if (NUMBER_IS_NAN(t)) return t; |
| 754 | return MS_FROM_TIME(LocalTimeNoCheck(t)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 755 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 756 | |
| 757 | |
| 758 | // ECMA 262 - 15.9.5.25 |
| 759 | function DateGetUTCMilliseconds() { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 760 | var t = DATE_VALUE(this); |
| 761 | return NAN_OR_MS_FROM_TIME(t); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 762 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 763 | |
| 764 | |
| 765 | // ECMA 262 - 15.9.5.26 |
| 766 | function DateGetTimezoneOffset() { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 767 | var t = DATE_VALUE(this); |
| 768 | if (NUMBER_IS_NAN(t)) return t; |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 769 | return (t - LocalTimeNoCheck(t)) / msPerMinute; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 770 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 771 | |
| 772 | |
| 773 | // ECMA 262 - 15.9.5.27 |
| 774 | function DateSetTime(ms) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 775 | if (!IS_DATE(this)) ThrowDateTypeError(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 776 | return %_SetValueOf(this, TimeClip(ToNumber(ms))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 777 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 778 | |
| 779 | |
| 780 | // ECMA 262 - 15.9.5.28 |
| 781 | function DateSetMilliseconds(ms) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 782 | var t = LocalTime(DATE_VALUE(this)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 783 | ms = ToNumber(ms); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 784 | var time = MakeTime(HOUR_FROM_TIME(t), MIN_FROM_TIME(t), SEC_FROM_TIME(t), ms); |
| 785 | return %_SetValueOf(this, TimeClip(UTC(MakeDate(DAY(t), time)))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 786 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 787 | |
| 788 | |
| 789 | // ECMA 262 - 15.9.5.29 |
| 790 | function DateSetUTCMilliseconds(ms) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 791 | var t = DATE_VALUE(this); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 792 | ms = ToNumber(ms); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 793 | var time = MakeTime(HOUR_FROM_TIME(t), MIN_FROM_TIME(t), SEC_FROM_TIME(t), ms); |
| 794 | return %_SetValueOf(this, TimeClip(MakeDate(DAY(t), time))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 795 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 796 | |
| 797 | |
| 798 | // ECMA 262 - 15.9.5.30 |
| 799 | function DateSetSeconds(sec, ms) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 800 | var t = LocalTime(DATE_VALUE(this)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 801 | sec = ToNumber(sec); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 802 | ms = %_ArgumentsLength() < 2 ? NAN_OR_MS_FROM_TIME(t) : ToNumber(ms); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 803 | var time = MakeTime(HOUR_FROM_TIME(t), MIN_FROM_TIME(t), sec, ms); |
| 804 | return %_SetValueOf(this, TimeClip(UTC(MakeDate(DAY(t), time)))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 805 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 806 | |
| 807 | |
| 808 | // ECMA 262 - 15.9.5.31 |
| 809 | function DateSetUTCSeconds(sec, ms) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 810 | var t = DATE_VALUE(this); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 811 | sec = ToNumber(sec); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 812 | ms = %_ArgumentsLength() < 2 ? NAN_OR_MS_FROM_TIME(t) : ToNumber(ms); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 813 | var time = MakeTime(HOUR_FROM_TIME(t), MIN_FROM_TIME(t), sec, ms); |
| 814 | return %_SetValueOf(this, TimeClip(MakeDate(DAY(t), time))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 815 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 816 | |
| 817 | |
| 818 | // ECMA 262 - 15.9.5.33 |
| 819 | function DateSetMinutes(min, sec, ms) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 820 | var t = LocalTime(DATE_VALUE(this)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 821 | min = ToNumber(min); |
| 822 | var argc = %_ArgumentsLength(); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 823 | sec = argc < 2 ? NAN_OR_SEC_FROM_TIME(t) : ToNumber(sec); |
| 824 | ms = argc < 3 ? NAN_OR_MS_FROM_TIME(t) : ToNumber(ms); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 825 | var time = MakeTime(HOUR_FROM_TIME(t), min, sec, ms); |
| 826 | return %_SetValueOf(this, TimeClip(UTC(MakeDate(DAY(t), time)))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 827 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 828 | |
| 829 | |
| 830 | // ECMA 262 - 15.9.5.34 |
| 831 | function DateSetUTCMinutes(min, sec, ms) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 832 | var t = DATE_VALUE(this); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 833 | min = ToNumber(min); |
| 834 | var argc = %_ArgumentsLength(); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 835 | sec = argc < 2 ? NAN_OR_SEC_FROM_TIME(t) : ToNumber(sec); |
| 836 | ms = argc < 3 ? NAN_OR_MS_FROM_TIME(t) : ToNumber(ms); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 837 | var time = MakeTime(HOUR_FROM_TIME(t), min, sec, ms); |
| 838 | return %_SetValueOf(this, TimeClip(MakeDate(DAY(t), time))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 839 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 840 | |
| 841 | |
| 842 | // ECMA 262 - 15.9.5.35 |
| 843 | function DateSetHours(hour, min, sec, ms) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 844 | var t = LocalTime(DATE_VALUE(this)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 845 | hour = ToNumber(hour); |
| 846 | var argc = %_ArgumentsLength(); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 847 | min = argc < 2 ? NAN_OR_MIN_FROM_TIME(t) : ToNumber(min); |
| 848 | sec = argc < 3 ? NAN_OR_SEC_FROM_TIME(t) : ToNumber(sec); |
| 849 | ms = argc < 4 ? NAN_OR_MS_FROM_TIME(t) : ToNumber(ms); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 850 | var time = MakeTime(hour, min, sec, ms); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 851 | return %_SetValueOf(this, TimeClip(UTC(MakeDate(DAY(t), time)))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 852 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 853 | |
| 854 | |
| 855 | // ECMA 262 - 15.9.5.34 |
| 856 | function DateSetUTCHours(hour, min, sec, ms) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 857 | var t = DATE_VALUE(this); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 858 | hour = ToNumber(hour); |
| 859 | var argc = %_ArgumentsLength(); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 860 | min = argc < 2 ? NAN_OR_MIN_FROM_TIME(t) : ToNumber(min); |
| 861 | sec = argc < 3 ? NAN_OR_SEC_FROM_TIME(t) : ToNumber(sec); |
| 862 | ms = argc < 4 ? NAN_OR_MS_FROM_TIME(t) : ToNumber(ms); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 863 | var time = MakeTime(hour, min, sec, ms); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 864 | return %_SetValueOf(this, TimeClip(MakeDate(DAY(t), time))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 865 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 866 | |
| 867 | |
| 868 | // ECMA 262 - 15.9.5.36 |
| 869 | function DateSetDate(date) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 870 | var t = LocalTime(DATE_VALUE(this)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 871 | date = ToNumber(date); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 872 | var day = MakeDay(YEAR_FROM_TIME(t), MONTH_FROM_TIME(t), date); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 873 | return %_SetValueOf(this, TimeClip(UTC(MakeDate(day, TimeWithinDay(t))))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 874 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 875 | |
| 876 | |
| 877 | // ECMA 262 - 15.9.5.37 |
| 878 | function DateSetUTCDate(date) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 879 | var t = DATE_VALUE(this); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 880 | date = ToNumber(date); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 881 | var day = MakeDay(YEAR_FROM_TIME(t), MONTH_FROM_TIME(t), date); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 882 | return %_SetValueOf(this, TimeClip(MakeDate(day, TimeWithinDay(t)))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 883 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 884 | |
| 885 | |
| 886 | // ECMA 262 - 15.9.5.38 |
| 887 | function DateSetMonth(month, date) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 888 | var t = LocalTime(DATE_VALUE(this)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 889 | month = ToNumber(month); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 890 | date = %_ArgumentsLength() < 2 ? NAN_OR_DATE_FROM_TIME(t) : ToNumber(date); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 891 | var day = MakeDay(YEAR_FROM_TIME(t), month, date); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 892 | return %_SetValueOf(this, TimeClip(UTC(MakeDate(day, TimeWithinDay(t))))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 893 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 894 | |
| 895 | |
| 896 | // ECMA 262 - 15.9.5.39 |
| 897 | function DateSetUTCMonth(month, date) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 898 | var t = DATE_VALUE(this); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 899 | month = ToNumber(month); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 900 | date = %_ArgumentsLength() < 2 ? NAN_OR_DATE_FROM_TIME(t) : ToNumber(date); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 901 | var day = MakeDay(YEAR_FROM_TIME(t), month, date); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 902 | return %_SetValueOf(this, TimeClip(MakeDate(day, TimeWithinDay(t)))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 903 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 904 | |
| 905 | |
| 906 | // ECMA 262 - 15.9.5.40 |
| 907 | function DateSetFullYear(year, month, date) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 908 | var t = DATE_VALUE(this); |
| 909 | t = NUMBER_IS_NAN(t) ? 0 : LocalTimeNoCheck(t); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 910 | year = ToNumber(year); |
| 911 | var argc = %_ArgumentsLength(); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 912 | month = argc < 2 ? MONTH_FROM_TIME(t) : ToNumber(month); |
| 913 | date = argc < 3 ? DATE_FROM_TIME(t) : ToNumber(date); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 914 | var day = MakeDay(year, month, date); |
| 915 | return %_SetValueOf(this, TimeClip(UTC(MakeDate(day, TimeWithinDay(t))))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 916 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 917 | |
| 918 | |
| 919 | // ECMA 262 - 15.9.5.41 |
| 920 | function DateSetUTCFullYear(year, month, date) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 921 | var t = DATE_VALUE(this); |
| 922 | if (NUMBER_IS_NAN(t)) t = 0; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 923 | var argc = %_ArgumentsLength(); |
| 924 | year = ToNumber(year); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 925 | month = argc < 2 ? MONTH_FROM_TIME(t) : ToNumber(month); |
| 926 | date = argc < 3 ? DATE_FROM_TIME(t) : ToNumber(date); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 927 | var day = MakeDay(year, month, date); |
| 928 | return %_SetValueOf(this, TimeClip(MakeDate(day, TimeWithinDay(t)))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 929 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 930 | |
| 931 | |
| 932 | // ECMA 262 - 15.9.5.42 |
| 933 | function DateToUTCString() { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 934 | var t = DATE_VALUE(this); |
| 935 | if (NUMBER_IS_NAN(t)) return kInvalidDate; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 936 | // Return UTC string of the form: Sat, 31 Jan 1970 23:00:00 GMT |
| 937 | return WeekDays[WeekDay(t)] + ', ' |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 938 | + TwoDigitString(DATE_FROM_TIME(t)) + ' ' |
| 939 | + Months[MONTH_FROM_TIME(t)] + ' ' |
| 940 | + YEAR_FROM_TIME(t) + ' ' |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 941 | + TimeString(t) + ' GMT'; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 942 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 943 | |
| 944 | |
| 945 | // ECMA 262 - B.2.4 |
| 946 | function DateGetYear() { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 947 | var t = DATE_VALUE(this); |
| 948 | if (NUMBER_IS_NAN(t)) return $NaN; |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 949 | return YEAR_FROM_TIME(LocalTimeNoCheck(t)) - 1900; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 950 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 951 | |
| 952 | |
| 953 | // ECMA 262 - B.2.5 |
| 954 | function DateSetYear(year) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 955 | var t = LocalTime(DATE_VALUE(this)); |
| 956 | if (NUMBER_IS_NAN(t)) t = 0; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 957 | year = ToNumber(year); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 958 | if (NUMBER_IS_NAN(year)) return %_SetValueOf(this, $NaN); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 959 | year = (0 <= TO_INTEGER(year) && TO_INTEGER(year) <= 99) |
| 960 | ? 1900 + TO_INTEGER(year) : year; |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 961 | var day = MakeDay(year, MONTH_FROM_TIME(t), DATE_FROM_TIME(t)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 962 | return %_SetValueOf(this, TimeClip(UTC(MakeDate(day, TimeWithinDay(t))))); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 963 | } |
| 964 | |
| 965 | |
| 966 | // ECMA 262 - B.2.6 |
| 967 | // |
| 968 | // Notice that this does not follow ECMA 262 completely. ECMA 262 |
| 969 | // says that toGMTString should be the same Function object as |
| 970 | // toUTCString. JSC does not do this, so for compatibility we do not |
| 971 | // do that either. Instead, we create a new function whose name |
| 972 | // property will return toGMTString. |
| 973 | function DateToGMTString() { |
| 974 | return DateToUTCString.call(this); |
| 975 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 976 | |
| 977 | |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 978 | function PadInt(n, digits) { |
| 979 | if (digits == 1) return n; |
| 980 | return n < MathPow(10, digits - 1) ? '0' + PadInt(n, digits - 1) : n; |
ager@chromium.org | 3a37e9b | 2009-04-27 09:26:21 +0000 | [diff] [blame] | 981 | } |
| 982 | |
| 983 | |
| 984 | function DateToISOString() { |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 985 | var t = DATE_VALUE(this); |
| 986 | if (NUMBER_IS_NAN(t)) return kInvalidDate; |
| 987 | return this.getUTCFullYear() + '-' + PadInt(this.getUTCMonth() + 1, 2) + |
| 988 | '-' + PadInt(this.getUTCDate(), 2) + 'T' + PadInt(this.getUTCHours(), 2) + |
| 989 | ':' + PadInt(this.getUTCMinutes(), 2) + ':' + PadInt(this.getUTCSeconds(), 2) + |
| 990 | '.' + PadInt(this.getUTCMilliseconds(), 3) + |
ager@chromium.org | 3a37e9b | 2009-04-27 09:26:21 +0000 | [diff] [blame] | 991 | 'Z'; |
| 992 | } |
| 993 | |
| 994 | |
| 995 | function DateToJSON(key) { |
| 996 | return CheckJSONPrimitive(this.toISOString()); |
| 997 | } |
| 998 | |
| 999 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1000 | // ------------------------------------------------------------------- |
| 1001 | |
| 1002 | function SetupDate() { |
| 1003 | // Setup non-enumerable properties of the Date object itself. |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 1004 | InstallFunctions($Date, DONT_ENUM, $Array( |
| 1005 | "UTC", DateUTC, |
| 1006 | "parse", DateParse, |
| 1007 | "now", DateNow |
| 1008 | )); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1009 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 1010 | // Setup non-enumerable constructor property of the Date prototype object. |
| 1011 | %SetProperty($Date.prototype, "constructor", $Date, DONT_ENUM); |
| 1012 | |
| 1013 | // Setup non-enumerable functions of the Date prototype object and |
| 1014 | // set their names. |
ager@chromium.org | 9085a01 | 2009-05-11 19:22:57 +0000 | [diff] [blame] | 1015 | InstallFunctionsOnHiddenPrototype($Date.prototype, DONT_ENUM, $Array( |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 1016 | "toString", DateToString, |
| 1017 | "toDateString", DateToDateString, |
| 1018 | "toTimeString", DateToTimeString, |
| 1019 | "toLocaleString", DateToLocaleString, |
| 1020 | "toLocaleDateString", DateToLocaleDateString, |
| 1021 | "toLocaleTimeString", DateToLocaleTimeString, |
| 1022 | "valueOf", DateValueOf, |
| 1023 | "getTime", DateGetTime, |
| 1024 | "getFullYear", DateGetFullYear, |
| 1025 | "getUTCFullYear", DateGetUTCFullYear, |
| 1026 | "getMonth", DateGetMonth, |
| 1027 | "getUTCMonth", DateGetUTCMonth, |
| 1028 | "getDate", DateGetDate, |
| 1029 | "getUTCDate", DateGetUTCDate, |
| 1030 | "getDay", DateGetDay, |
| 1031 | "getUTCDay", DateGetUTCDay, |
| 1032 | "getHours", DateGetHours, |
| 1033 | "getUTCHours", DateGetUTCHours, |
| 1034 | "getMinutes", DateGetMinutes, |
| 1035 | "getUTCMinutes", DateGetUTCMinutes, |
| 1036 | "getSeconds", DateGetSeconds, |
| 1037 | "getUTCSeconds", DateGetUTCSeconds, |
| 1038 | "getMilliseconds", DateGetMilliseconds, |
| 1039 | "getUTCMilliseconds", DateGetUTCMilliseconds, |
| 1040 | "getTimezoneOffset", DateGetTimezoneOffset, |
| 1041 | "setTime", DateSetTime, |
| 1042 | "setMilliseconds", DateSetMilliseconds, |
| 1043 | "setUTCMilliseconds", DateSetUTCMilliseconds, |
| 1044 | "setSeconds", DateSetSeconds, |
| 1045 | "setUTCSeconds", DateSetUTCSeconds, |
| 1046 | "setMinutes", DateSetMinutes, |
| 1047 | "setUTCMinutes", DateSetUTCMinutes, |
| 1048 | "setHours", DateSetHours, |
| 1049 | "setUTCHours", DateSetUTCHours, |
| 1050 | "setDate", DateSetDate, |
| 1051 | "setUTCDate", DateSetUTCDate, |
| 1052 | "setMonth", DateSetMonth, |
| 1053 | "setUTCMonth", DateSetUTCMonth, |
| 1054 | "setFullYear", DateSetFullYear, |
| 1055 | "setUTCFullYear", DateSetUTCFullYear, |
| 1056 | "toGMTString", DateToGMTString, |
| 1057 | "toUTCString", DateToUTCString, |
| 1058 | "getYear", DateGetYear, |
ager@chromium.org | 3a37e9b | 2009-04-27 09:26:21 +0000 | [diff] [blame] | 1059 | "setYear", DateSetYear, |
| 1060 | "toISOString", DateToISOString, |
| 1061 | "toJSON", DateToJSON |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 1062 | )); |
| 1063 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1064 | |
| 1065 | SetupDate(); |