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Unified Diff: src/date-delay.js

Issue 1094014: Merge the partial_snapshots branch back into bleeding_edge. For... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 10 years, 9 months ago
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Index: src/date-delay.js
===================================================================
--- src/date-delay.js (revision 4215)
+++ src/date-delay.js (working copy)
@@ -1,1089 +0,0 @@
-// Copyright 2006-2008 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following
-// disclaimer in the documentation and/or other materials provided
-// with the distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived
-// from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-// This file relies on the fact that the following declarations have been made
-// in v8natives.js:
-// const $isFinite = GlobalIsFinite;
-
-// -------------------------------------------------------------------
-
-// This file contains date support implemented in JavaScript.
-
-
-// Keep reference to original values of some global properties. This
-// has the added benefit that the code in this file is isolated from
-// changes to these properties.
-const $Date = global.Date;
-
-// Helper function to throw error.
-function ThrowDateTypeError() {
- throw new $TypeError('this is not a Date object.');
-}
-
-// ECMA 262 - 5.2
-function Modulo(value, remainder) {
- var mod = value % remainder;
- // Guard against returning -0.
- if (mod == 0) return 0;
- return mod >= 0 ? mod : mod + remainder;
-}
-
-
-function TimeWithinDay(time) {
- return Modulo(time, msPerDay);
-}
-
-
-// ECMA 262 - 15.9.1.3
-function DaysInYear(year) {
- if (year % 4 != 0) return 365;
- if ((year % 100 == 0) && (year % 400 != 0)) return 365;
- return 366;
-}
-
-
-function DayFromYear(year) {
- return 365 * (year-1970)
- + FLOOR((year-1969)/4)
- - FLOOR((year-1901)/100)
- + FLOOR((year-1601)/400);
-}
-
-
-function TimeFromYear(year) {
- return msPerDay * DayFromYear(year);
-}
-
-
-function InLeapYear(time) {
- return DaysInYear(YEAR_FROM_TIME(time)) == 366 ? 1 : 0;
-}
-
-
-function DayWithinYear(time) {
- return DAY(time) - DayFromYear(YEAR_FROM_TIME(time));
-}
-
-
-// ECMA 262 - 15.9.1.9
-function EquivalentYear(year) {
- // Returns an equivalent year in the range [2008-2035] matching
- // - leap year.
- // - week day of first day.
- var time = TimeFromYear(year);
- var recent_year = (InLeapYear(time) == 0 ? 1967 : 1956) +
- (WeekDay(time) * 12) % 28;
- // Find the year in the range 2008..2037 that is equivalent mod 28.
- // Add 3*28 to give a positive argument to the modulus operator.
- return 2008 + (recent_year + 3*28 - 2008) % 28;
-}
-
-
-function EquivalentTime(t) {
- // The issue here is that some library calls don't work right for dates
- // that cannot be represented using a non-negative signed 32 bit integer
- // (measured in whole seconds based on the 1970 epoch).
- // We solve this by mapping the time to a year with same leap-year-ness
- // and same starting day for the year. The ECMAscript specification says
- // we must do this, but for compatibility with other browsers, we use
- // the actual year if it is in the range 1970..2037
- if (t >= 0 && t <= 2.1e12) return t;
-
- var day = MakeDay(EquivalentYear(YEAR_FROM_TIME(t)),
- MONTH_FROM_TIME(t),
- DATE_FROM_TIME(t));
- return MakeDate(day, TimeWithinDay(t));
-}
-
-
-// Because computing the DST offset is a pretty expensive operation
-// we keep a cache of last computed offset along with a time interval
-// where we know the cache is valid.
-var DST_offset_cache = {
- // Cached DST offset.
- offset: 0,
- // Time interval where the cached offset is valid.
- start: 0, end: -1,
- // Size of next interval expansion.
- increment: 0
-};
-
-
-// NOTE: The implementation relies on the fact that no time zones have
-// more than one daylight savings offset change per month.
-// If this function is called with NaN it returns NaN.
-function DaylightSavingsOffset(t) {
- // Load the cache object from the builtins object.
- var cache = DST_offset_cache;
-
- // Cache the start and the end in local variables for fast access.
- var start = cache.start;
- var end = cache.end;
-
- if (start <= t) {
- // If the time fits in the cached interval, return the cached offset.
- if (t <= end) return cache.offset;
-
- // Compute a possible new interval end.
- var new_end = end + cache.increment;
-
- if (t <= new_end) {
- var end_offset = %DateDaylightSavingsOffset(EquivalentTime(new_end));
- if (cache.offset == end_offset) {
- // If the offset at the end of the new interval still matches
- // the offset in the cache, we grow the cached time interval
- // and return the offset.
- cache.end = new_end;
- cache.increment = msPerMonth;
- return end_offset;
- } else {
- var offset = %DateDaylightSavingsOffset(EquivalentTime(t));
- if (offset == end_offset) {
- // The offset at the given time is equal to the offset at the
- // new end of the interval, so that means that we've just skipped
- // the point in time where the DST offset change occurred. Updated
- // the interval to reflect this and reset the increment.
- cache.start = t;
- cache.end = new_end;
- cache.increment = msPerMonth;
- } else {
- // The interval contains a DST offset change and the given time is
- // before it. Adjust the increment to avoid a linear search for
- // the offset change point and change the end of the interval.
- cache.increment /= 3;
- cache.end = t;
- }
- // Update the offset in the cache and return it.
- cache.offset = offset;
- return offset;
- }
- }
- }
-
- // Compute the DST offset for the time and shrink the cache interval
- // to only contain the time. This allows fast repeated DST offset
- // computations for the same time.
- var offset = %DateDaylightSavingsOffset(EquivalentTime(t));
- cache.offset = offset;
- cache.start = cache.end = t;
- cache.increment = msPerMonth;
- return offset;
-}
-
-
-var timezone_cache_time = $NaN;
-var timezone_cache_timezone;
-
-function LocalTimezone(t) {
- if (NUMBER_IS_NAN(t)) return "";
- if (t == timezone_cache_time) {
- return timezone_cache_timezone;
- }
- var timezone = %DateLocalTimezone(EquivalentTime(t));
- timezone_cache_time = t;
- timezone_cache_timezone = timezone;
- return timezone;
-}
-
-
-function WeekDay(time) {
- return Modulo(DAY(time) + 4, 7);
-}
-
-var local_time_offset = %DateLocalTimeOffset();
-
-function LocalTime(time) {
- if (NUMBER_IS_NAN(time)) return time;
- return time + local_time_offset + DaylightSavingsOffset(time);
-}
-
-function LocalTimeNoCheck(time) {
- // Inline the DST offset cache checks for speed.
- var cache = DST_offset_cache;
- if (cache.start <= time && time <= cache.end) {
- var dst_offset = cache.offset;
- } else {
- var dst_offset = DaylightSavingsOffset(time);
- }
- return time + local_time_offset + dst_offset;
-}
-
-
-function UTC(time) {
- if (NUMBER_IS_NAN(time)) return time;
- var tmp = time - local_time_offset;
- return tmp - DaylightSavingsOffset(tmp);
-}
-
-
-// ECMA 262 - 15.9.1.11
-function MakeTime(hour, min, sec, ms) {
- if (!$isFinite(hour)) return $NaN;
- if (!$isFinite(min)) return $NaN;
- if (!$isFinite(sec)) return $NaN;
- if (!$isFinite(ms)) return $NaN;
- return TO_INTEGER(hour) * msPerHour
- + TO_INTEGER(min) * msPerMinute
- + TO_INTEGER(sec) * msPerSecond
- + TO_INTEGER(ms);
-}
-
-
-// ECMA 262 - 15.9.1.12
-function TimeInYear(year) {
- return DaysInYear(year) * msPerDay;
-}
-
-
-var ymd_from_time_cache = [$NaN, $NaN, $NaN];
-var ymd_from_time_cached_time = $NaN;
-
-function YearFromTime(t) {
- if (t !== ymd_from_time_cached_time) {
- // Limits according to ECMA 262 15.9.1.1
- if (!$isFinite(t) || t < -8640000000000000 || t > 8640000000000000) {
- return $NaN;
- }
-
- %DateYMDFromTime(t, ymd_from_time_cache);
- ymd_from_time_cached_time = t
- }
-
- return ymd_from_time_cache[0];
-}
-
-function MonthFromTime(t) {
- if (t !== ymd_from_time_cached_time) {
- // Limits according to ECMA 262 15.9.1.1
- if (!$isFinite(t) || t < -8640000000000000 || t > 8640000000000000) {
- return $NaN;
- }
- %DateYMDFromTime(t, ymd_from_time_cache);
- ymd_from_time_cached_time = t
- }
-
- return ymd_from_time_cache[1];
-}
-
-function DateFromTime(t) {
- if (t !== ymd_from_time_cached_time) {
- // Limits according to ECMA 262 15.9.1.1
- if (!$isFinite(t) || t < -8640000000000000 || t > 8640000000000000) {
- return $NaN;
- }
-
- %DateYMDFromTime(t, ymd_from_time_cache);
- ymd_from_time_cached_time = t
- }
-
- return ymd_from_time_cache[2];
-}
-
-
-// Compute number of days given a year, month, date.
-// Note that month and date can lie outside the normal range.
-// For example:
-// MakeDay(2007, -4, 20) --> MakeDay(2006, 8, 20)
-// MakeDay(2007, -33, 1) --> MakeDay(2004, 3, 1)
-// MakeDay(2007, 14, -50) --> MakeDay(2007, 8, 11)
-function MakeDay(year, month, date) {
- if (!$isFinite(year) || !$isFinite(month) || !$isFinite(date)) return $NaN;
-
- year = TO_INTEGER(year);
- month = TO_INTEGER(month);
- date = TO_INTEGER(date);
-
- if (year < kMinYear || year > kMaxYear ||
- month < kMinMonth || month > kMaxMonth ||
- date < kMinDate || date > kMaxDate) {
- return $NaN;
- }
-
- // Now we rely on year, month and date being SMIs.
- return %DateMakeDay(year, month, date);
-}
-
-
-// ECMA 262 - 15.9.1.13
-function MakeDate(day, time) {
- if (!$isFinite(day)) return $NaN;
- if (!$isFinite(time)) return $NaN;
- return day * msPerDay + time;
-}
-
-
-// ECMA 262 - 15.9.1.14
-function TimeClip(time) {
- if (!$isFinite(time)) return $NaN;
- if ($abs(time) > 8.64E15) return $NaN;
- return TO_INTEGER(time);
-}
-
-
-// The Date cache is used to limit the cost of parsing the same Date
-// strings over and over again.
-var Date_cache = {
- // Cached time value.
- time: $NaN,
- // Cached year when interpreting the time as a local time. Only
- // valid when the time matches cached time.
- year: $NaN,
- // String input for which the cached time is valid.
- string: null
-};
-
-
-%SetCode($Date, function(year, month, date, hours, minutes, seconds, ms) {
- if (!%_IsConstructCall()) {
- // ECMA 262 - 15.9.2
- return (new $Date()).toString();
- }
-
- // ECMA 262 - 15.9.3
- var argc = %_ArgumentsLength();
- var value;
- if (argc == 0) {
- value = %DateCurrentTime();
-
- } else if (argc == 1) {
- if (IS_NUMBER(year)) {
- value = TimeClip(year);
-
- } else if (IS_STRING(year)) {
- // Probe the Date cache. If we already have a time value for the
- // given time, we re-use that instead of parsing the string again.
- var cache = Date_cache;
- if (cache.string === year) {
- value = cache.time;
- } else {
- value = DateParse(year);
- if (!NUMBER_IS_NAN(value)) {
- cache.time = value;
- cache.year = YEAR_FROM_TIME(LocalTimeNoCheck(value));
- cache.string = year;
- }
- }
-
- } else {
- // According to ECMA 262, no hint should be given for this
- // conversion. However, ToPrimitive defaults to STRING_HINT for
- // Date objects which will lose precision when the Date
- // constructor is called with another Date object as its
- // argument. We therefore use NUMBER_HINT for the conversion,
- // which is the default for everything else than Date objects.
- // This makes us behave like KJS and SpiderMonkey.
- var time = ToPrimitive(year, NUMBER_HINT);
- value = IS_STRING(time) ? DateParse(time) : TimeClip(ToNumber(time));
- }
-
- } else {
- year = ToNumber(year);
- month = ToNumber(month);
- date = argc > 2 ? ToNumber(date) : 1;
- hours = argc > 3 ? ToNumber(hours) : 0;
- minutes = argc > 4 ? ToNumber(minutes) : 0;
- seconds = argc > 5 ? ToNumber(seconds) : 0;
- ms = argc > 6 ? ToNumber(ms) : 0;
- year = (!NUMBER_IS_NAN(year) && 0 <= TO_INTEGER(year) && TO_INTEGER(year) <= 99)
- ? 1900 + TO_INTEGER(year) : year;
- var day = MakeDay(year, month, date);
- var time = MakeTime(hours, minutes, seconds, ms);
- value = TimeClip(UTC(MakeDate(day, time)));
- }
- %_SetValueOf(this, value);
-});
-
-
-// Helper functions.
-function GetTimeFrom(aDate) {
- return DATE_VALUE(aDate);
-}
-
-function GetMillisecondsFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- return MS_FROM_TIME(LocalTimeNoCheck(t));
-}
-
-
-function GetUTCMillisecondsFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- return MS_FROM_TIME(t);
-}
-
-
-function GetSecondsFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- return SEC_FROM_TIME(LocalTimeNoCheck(t));
-}
-
-
-function GetUTCSecondsFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- return SEC_FROM_TIME(t);
-}
-
-
-function GetMinutesFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- return MIN_FROM_TIME(LocalTimeNoCheck(t));
-}
-
-
-function GetUTCMinutesFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- return MIN_FROM_TIME(t);
-}
-
-
-function GetHoursFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- return HOUR_FROM_TIME(LocalTimeNoCheck(t));
-}
-
-
-function GetUTCHoursFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- return HOUR_FROM_TIME(t);
-}
-
-
-function GetFullYearFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- var cache = Date_cache;
- if (cache.time === t) return cache.year;
- return YEAR_FROM_TIME(LocalTimeNoCheck(t));
-}
-
-
-function GetUTCFullYearFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- return YEAR_FROM_TIME(t);
-}
-
-
-function GetMonthFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- return MONTH_FROM_TIME(LocalTimeNoCheck(t));
-}
-
-
-function GetUTCMonthFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- return MONTH_FROM_TIME(t);
-}
-
-
-function GetDateFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- return DATE_FROM_TIME(LocalTimeNoCheck(t));
-}
-
-
-function GetUTCDateFrom(aDate) {
- var t = DATE_VALUE(aDate);
- if (NUMBER_IS_NAN(t)) return t;
- return DATE_FROM_TIME(t);
-}
-
-
-%FunctionSetPrototype($Date, new $Date($NaN));
-
-
-var WeekDays = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
-var Months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
-
-
-function TwoDigitString(value) {
- return value < 10 ? "0" + value : "" + value;
-}
-
-
-function DateString(time) {
- return WeekDays[WeekDay(time)] + ' '
- + Months[MonthFromTime(time)] + ' '
- + TwoDigitString(DateFromTime(time)) + ' '
- + YearFromTime(time);
-}
-
-
-var LongWeekDays = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
-var LongMonths = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
-
-
-function LongDateString(time) {
- return LongWeekDays[WeekDay(time)] + ', '
- + LongMonths[MonthFromTime(time)] + ' '
- + TwoDigitString(DateFromTime(time)) + ', '
- + YearFromTime(time);
-}
-
-
-function TimeString(time) {
- return TwoDigitString(HOUR_FROM_TIME(time)) + ':'
- + TwoDigitString(MIN_FROM_TIME(time)) + ':'
- + TwoDigitString(SEC_FROM_TIME(time));
-}
-
-
-function LocalTimezoneString(time) {
- var timezoneOffset =
- (local_time_offset + DaylightSavingsOffset(time)) / msPerMinute;
- var sign = (timezoneOffset >= 0) ? 1 : -1;
- var hours = FLOOR((sign * timezoneOffset)/60);
- var min = FLOOR((sign * timezoneOffset)%60);
- var gmt = ' GMT' + ((sign == 1) ? '+' : '-') +
- TwoDigitString(hours) + TwoDigitString(min);
- return gmt + ' (' + LocalTimezone(time) + ')';
-}
-
-
-function DatePrintString(time) {
- return DateString(time) + ' ' + TimeString(time);
-}
-
-// -------------------------------------------------------------------
-
-// Reused output buffer. Used when parsing date strings.
-var parse_buffer = $Array(7);
-
-// ECMA 262 - 15.9.4.2
-function DateParse(string) {
- var arr = %DateParseString(ToString(string), parse_buffer);
- if (IS_NULL(arr)) return $NaN;
-
- var day = MakeDay(arr[0], arr[1], arr[2]);
- var time = MakeTime(arr[3], arr[4], arr[5], 0);
- var date = MakeDate(day, time);
-
- if (IS_NULL(arr[6])) {
- return TimeClip(UTC(date));
- } else {
- return TimeClip(date - arr[6] * 1000);
- }
-}
-
-
-// ECMA 262 - 15.9.4.3
-function DateUTC(year, month, date, hours, minutes, seconds, ms) {
- year = ToNumber(year);
- month = ToNumber(month);
- var argc = %_ArgumentsLength();
- date = argc > 2 ? ToNumber(date) : 1;
- hours = argc > 3 ? ToNumber(hours) : 0;
- minutes = argc > 4 ? ToNumber(minutes) : 0;
- seconds = argc > 5 ? ToNumber(seconds) : 0;
- ms = argc > 6 ? ToNumber(ms) : 0;
- year = (!NUMBER_IS_NAN(year) && 0 <= TO_INTEGER(year) && TO_INTEGER(year) <= 99)
- ? 1900 + TO_INTEGER(year) : year;
- var day = MakeDay(year, month, date);
- var time = MakeTime(hours, minutes, seconds, ms);
- return %_SetValueOf(this, TimeClip(MakeDate(day, time)));
-}
-
-
-// Mozilla-specific extension. Returns the number of milliseconds
-// elapsed since 1 January 1970 00:00:00 UTC.
-function DateNow() {
- return %DateCurrentTime();
-}
-
-
-// ECMA 262 - 15.9.5.2
-function DateToString() {
- var t = DATE_VALUE(this);
- if (NUMBER_IS_NAN(t)) return kInvalidDate;
- return DatePrintString(LocalTimeNoCheck(t)) + LocalTimezoneString(t);
-}
-
-
-// ECMA 262 - 15.9.5.3
-function DateToDateString() {
- var t = DATE_VALUE(this);
- if (NUMBER_IS_NAN(t)) return kInvalidDate;
- return DateString(LocalTimeNoCheck(t));
-}
-
-
-// ECMA 262 - 15.9.5.4
-function DateToTimeString() {
- var t = DATE_VALUE(this);
- if (NUMBER_IS_NAN(t)) return kInvalidDate;
- var lt = LocalTimeNoCheck(t);
- return TimeString(lt) + LocalTimezoneString(lt);
-}
-
-
-// ECMA 262 - 15.9.5.5
-function DateToLocaleString() {
- return DateToString.call(this);
-}
-
-
-// ECMA 262 - 15.9.5.6
-function DateToLocaleDateString() {
- var t = DATE_VALUE(this);
- if (NUMBER_IS_NAN(t)) return kInvalidDate;
- return LongDateString(LocalTimeNoCheck(t));
-}
-
-
-// ECMA 262 - 15.9.5.7
-function DateToLocaleTimeString() {
- var t = DATE_VALUE(this);
- if (NUMBER_IS_NAN(t)) return kInvalidDate;
- var lt = LocalTimeNoCheck(t);
- return TimeString(lt);
-}
-
-
-// ECMA 262 - 15.9.5.8
-function DateValueOf() {
- return DATE_VALUE(this);
-}
-
-
-// ECMA 262 - 15.9.5.9
-function DateGetTime() {
- return DATE_VALUE(this);
-}
-
-
-// ECMA 262 - 15.9.5.10
-function DateGetFullYear() {
- return GetFullYearFrom(this)
-}
-
-
-// ECMA 262 - 15.9.5.11
-function DateGetUTCFullYear() {
- return GetUTCFullYearFrom(this)
-}
-
-
-// ECMA 262 - 15.9.5.12
-function DateGetMonth() {
- return GetMonthFrom(this);
-}
-
-
-// ECMA 262 - 15.9.5.13
-function DateGetUTCMonth() {
- return GetUTCMonthFrom(this);
-}
-
-
-// ECMA 262 - 15.9.5.14
-function DateGetDate() {
- return GetDateFrom(this);
-}
-
-
-// ECMA 262 - 15.9.5.15
-function DateGetUTCDate() {
- return GetUTCDateFrom(this);
-}
-
-
-// ECMA 262 - 15.9.5.16
-function DateGetDay() {
- var t = %_ValueOf(this);
- if (NUMBER_IS_NAN(t)) return t;
- return WeekDay(LocalTimeNoCheck(t));
-}
-
-
-// ECMA 262 - 15.9.5.17
-function DateGetUTCDay() {
- var t = %_ValueOf(this);
- if (NUMBER_IS_NAN(t)) return t;
- return WeekDay(t);
-}
-
-
-// ECMA 262 - 15.9.5.18
-function DateGetHours() {
- return GetHoursFrom(this);
-}
-
-
-// ECMA 262 - 15.9.5.19
-function DateGetUTCHours() {
- return GetUTCHoursFrom(this);
-}
-
-
-// ECMA 262 - 15.9.5.20
-function DateGetMinutes() {
- return GetMinutesFrom(this);
-}
-
-
-// ECMA 262 - 15.9.5.21
-function DateGetUTCMinutes() {
- return GetUTCMinutesFrom(this);
-}
-
-
-// ECMA 262 - 15.9.5.22
-function DateGetSeconds() {
- return GetSecondsFrom(this);
-}
-
-
-// ECMA 262 - 15.9.5.23
-function DateGetUTCSeconds() {
- return GetUTCSecondsFrom(this);
-}
-
-
-// ECMA 262 - 15.9.5.24
-function DateGetMilliseconds() {
- return GetMillisecondsFrom(this);
-}
-
-
-// ECMA 262 - 15.9.5.25
-function DateGetUTCMilliseconds() {
- return GetUTCMillisecondsFrom(this);
-}
-
-
-// ECMA 262 - 15.9.5.26
-function DateGetTimezoneOffset() {
- var t = DATE_VALUE(this);
- if (NUMBER_IS_NAN(t)) return t;
- return (t - LocalTimeNoCheck(t)) / msPerMinute;
-}
-
-
-// ECMA 262 - 15.9.5.27
-function DateSetTime(ms) {
- if (!IS_DATE(this)) ThrowDateTypeError();
- return %_SetValueOf(this, TimeClip(ToNumber(ms)));
-}
-
-
-// ECMA 262 - 15.9.5.28
-function DateSetMilliseconds(ms) {
- var t = LocalTime(DATE_VALUE(this));
- ms = ToNumber(ms);
- var time = MakeTime(HOUR_FROM_TIME(t), MIN_FROM_TIME(t), SEC_FROM_TIME(t), ms);
- return %_SetValueOf(this, TimeClip(UTC(MakeDate(DAY(t), time))));
-}
-
-
-// ECMA 262 - 15.9.5.29
-function DateSetUTCMilliseconds(ms) {
- var t = DATE_VALUE(this);
- ms = ToNumber(ms);
- var time = MakeTime(HOUR_FROM_TIME(t), MIN_FROM_TIME(t), SEC_FROM_TIME(t), ms);
- return %_SetValueOf(this, TimeClip(MakeDate(DAY(t), time)));
-}
-
-
-// ECMA 262 - 15.9.5.30
-function DateSetSeconds(sec, ms) {
- var t = LocalTime(DATE_VALUE(this));
- sec = ToNumber(sec);
- ms = %_ArgumentsLength() < 2 ? GetMillisecondsFrom(this) : ToNumber(ms);
- var time = MakeTime(HOUR_FROM_TIME(t), MIN_FROM_TIME(t), sec, ms);
- return %_SetValueOf(this, TimeClip(UTC(MakeDate(DAY(t), time))));
-}
-
-
-// ECMA 262 - 15.9.5.31
-function DateSetUTCSeconds(sec, ms) {
- var t = DATE_VALUE(this);
- sec = ToNumber(sec);
- ms = %_ArgumentsLength() < 2 ? GetUTCMillisecondsFrom(this) : ToNumber(ms);
- var time = MakeTime(HOUR_FROM_TIME(t), MIN_FROM_TIME(t), sec, ms);
- return %_SetValueOf(this, TimeClip(MakeDate(DAY(t), time)));
-}
-
-
-// ECMA 262 - 15.9.5.33
-function DateSetMinutes(min, sec, ms) {
- var t = LocalTime(DATE_VALUE(this));
- min = ToNumber(min);
- var argc = %_ArgumentsLength();
- sec = argc < 2 ? GetSecondsFrom(this) : ToNumber(sec);
- ms = argc < 3 ? GetMillisecondsFrom(this) : ToNumber(ms);
- var time = MakeTime(HOUR_FROM_TIME(t), min, sec, ms);
- return %_SetValueOf(this, TimeClip(UTC(MakeDate(DAY(t), time))));
-}
-
-
-// ECMA 262 - 15.9.5.34
-function DateSetUTCMinutes(min, sec, ms) {
- var t = DATE_VALUE(this);
- min = ToNumber(min);
- var argc = %_ArgumentsLength();
- sec = argc < 2 ? GetUTCSecondsFrom(this) : ToNumber(sec);
- ms = argc < 3 ? GetUTCMillisecondsFrom(this) : ToNumber(ms);
- var time = MakeTime(HOUR_FROM_TIME(t), min, sec, ms);
- return %_SetValueOf(this, TimeClip(MakeDate(DAY(t), time)));
-}
-
-
-// ECMA 262 - 15.9.5.35
-function DateSetHours(hour, min, sec, ms) {
- var t = LocalTime(DATE_VALUE(this));
- hour = ToNumber(hour);
- var argc = %_ArgumentsLength();
- min = argc < 2 ? GetMinutesFrom(this) : ToNumber(min);
- sec = argc < 3 ? GetSecondsFrom(this) : ToNumber(sec);
- ms = argc < 4 ? GetMillisecondsFrom(this) : ToNumber(ms);
- var time = MakeTime(hour, min, sec, ms);
- return %_SetValueOf(this, TimeClip(UTC(MakeDate(DAY(t), time))));
-}
-
-
-// ECMA 262 - 15.9.5.34
-function DateSetUTCHours(hour, min, sec, ms) {
- var t = DATE_VALUE(this);
- hour = ToNumber(hour);
- var argc = %_ArgumentsLength();
- min = argc < 2 ? GetUTCMinutesFrom(this) : ToNumber(min);
- sec = argc < 3 ? GetUTCSecondsFrom(this) : ToNumber(sec);
- ms = argc < 4 ? GetUTCMillisecondsFrom(this) : ToNumber(ms);
- var time = MakeTime(hour, min, sec, ms);
- return %_SetValueOf(this, TimeClip(MakeDate(DAY(t), time)));
-}
-
-
-// ECMA 262 - 15.9.5.36
-function DateSetDate(date) {
- var t = LocalTime(DATE_VALUE(this));
- date = ToNumber(date);
- var day = MakeDay(YEAR_FROM_TIME(t), MONTH_FROM_TIME(t), date);
- return %_SetValueOf(this, TimeClip(UTC(MakeDate(day, TimeWithinDay(t)))));
-}
-
-
-// ECMA 262 - 15.9.5.37
-function DateSetUTCDate(date) {
- var t = DATE_VALUE(this);
- date = ToNumber(date);
- var day = MakeDay(YEAR_FROM_TIME(t), MONTH_FROM_TIME(t), date);
- return %_SetValueOf(this, TimeClip(MakeDate(day, TimeWithinDay(t))));
-}
-
-
-// ECMA 262 - 15.9.5.38
-function DateSetMonth(month, date) {
- var t = LocalTime(DATE_VALUE(this));
- month = ToNumber(month);
- date = %_ArgumentsLength() < 2 ? GetDateFrom(this) : ToNumber(date);
- var day = MakeDay(YEAR_FROM_TIME(t), month, date);
- return %_SetValueOf(this, TimeClip(UTC(MakeDate(day, TimeWithinDay(t)))));
-}
-
-
-// ECMA 262 - 15.9.5.39
-function DateSetUTCMonth(month, date) {
- var t = DATE_VALUE(this);
- month = ToNumber(month);
- date = %_ArgumentsLength() < 2 ? GetUTCDateFrom(this) : ToNumber(date);
- var day = MakeDay(YEAR_FROM_TIME(t), month, date);
- return %_SetValueOf(this, TimeClip(MakeDate(day, TimeWithinDay(t))));
-}
-
-
-// ECMA 262 - 15.9.5.40
-function DateSetFullYear(year, month, date) {
- var t = DATE_VALUE(this);
- t = NUMBER_IS_NAN(t) ? 0 : LocalTimeNoCheck(t);
- year = ToNumber(year);
- var argc = %_ArgumentsLength();
- month = argc < 2 ? MONTH_FROM_TIME(t) : ToNumber(month);
- date = argc < 3 ? DATE_FROM_TIME(t) : ToNumber(date);
- var day = MakeDay(year, month, date);
- return %_SetValueOf(this, TimeClip(UTC(MakeDate(day, TimeWithinDay(t)))));
-}
-
-
-// ECMA 262 - 15.9.5.41
-function DateSetUTCFullYear(year, month, date) {
- var t = DATE_VALUE(this);
- if (NUMBER_IS_NAN(t)) t = 0;
- var argc = %_ArgumentsLength();
- year = ToNumber(year);
- month = argc < 2 ? MONTH_FROM_TIME(t) : ToNumber(month);
- date = argc < 3 ? DATE_FROM_TIME(t) : ToNumber(date);
- var day = MakeDay(year, month, date);
- return %_SetValueOf(this, TimeClip(MakeDate(day, TimeWithinDay(t))));
-}
-
-
-// ECMA 262 - 15.9.5.42
-function DateToUTCString() {
- var t = DATE_VALUE(this);
- if (NUMBER_IS_NAN(t)) return kInvalidDate;
- // Return UTC string of the form: Sat, 31 Jan 1970 23:00:00 GMT
- return WeekDays[WeekDay(t)] + ', '
- + TwoDigitString(DATE_FROM_TIME(t)) + ' '
- + Months[MONTH_FROM_TIME(t)] + ' '
- + YEAR_FROM_TIME(t) + ' '
- + TimeString(t) + ' GMT';
-}
-
-
-// ECMA 262 - B.2.4
-function DateGetYear() {
- var t = DATE_VALUE(this);
- if (NUMBER_IS_NAN(t)) return $NaN;
- return YEAR_FROM_TIME(LocalTimeNoCheck(t)) - 1900;
-}
-
-
-// ECMA 262 - B.2.5
-function DateSetYear(year) {
- var t = LocalTime(DATE_VALUE(this));
- if (NUMBER_IS_NAN(t)) t = 0;
- year = ToNumber(year);
- if (NUMBER_IS_NAN(year)) return %_SetValueOf(this, $NaN);
- year = (0 <= TO_INTEGER(year) && TO_INTEGER(year) <= 99)
- ? 1900 + TO_INTEGER(year) : year;
- var day = MakeDay(year, MONTH_FROM_TIME(t), DATE_FROM_TIME(t));
- return %_SetValueOf(this, TimeClip(UTC(MakeDate(day, TimeWithinDay(t)))));
-}
-
-
-// ECMA 262 - B.2.6
-//
-// Notice that this does not follow ECMA 262 completely. ECMA 262
-// says that toGMTString should be the same Function object as
-// toUTCString. JSC does not do this, so for compatibility we do not
-// do that either. Instead, we create a new function whose name
-// property will return toGMTString.
-function DateToGMTString() {
- return DateToUTCString.call(this);
-}
-
-
-function PadInt(n, digits) {
- if (digits == 1) return n;
- return n < MathPow(10, digits - 1) ? '0' + PadInt(n, digits - 1) : n;
-}
-
-
-function DateToISOString() {
- var t = DATE_VALUE(this);
- if (NUMBER_IS_NAN(t)) return kInvalidDate;
- return this.getUTCFullYear() + '-' + PadInt(this.getUTCMonth() + 1, 2) +
- '-' + PadInt(this.getUTCDate(), 2) + 'T' + PadInt(this.getUTCHours(), 2) +
- ':' + PadInt(this.getUTCMinutes(), 2) + ':' + PadInt(this.getUTCSeconds(), 2) +
- '.' + PadInt(this.getUTCMilliseconds(), 3) +
- 'Z';
-}
-
-
-function DateToJSON(key) {
- return CheckJSONPrimitive(this.toISOString());
-}
-
-
-// -------------------------------------------------------------------
-
-function SetupDate() {
- // Setup non-enumerable properties of the Date object itself.
- InstallFunctions($Date, DONT_ENUM, $Array(
- "UTC", DateUTC,
- "parse", DateParse,
- "now", DateNow
- ));
-
- // Setup non-enumerable constructor property of the Date prototype object.
- %SetProperty($Date.prototype, "constructor", $Date, DONT_ENUM);
-
- // Setup non-enumerable functions of the Date prototype object and
- // set their names.
- InstallFunctionsOnHiddenPrototype($Date.prototype, DONT_ENUM, $Array(
- "toString", DateToString,
- "toDateString", DateToDateString,
- "toTimeString", DateToTimeString,
- "toLocaleString", DateToLocaleString,
- "toLocaleDateString", DateToLocaleDateString,
- "toLocaleTimeString", DateToLocaleTimeString,
- "valueOf", DateValueOf,
- "getTime", DateGetTime,
- "getFullYear", DateGetFullYear,
- "getUTCFullYear", DateGetUTCFullYear,
- "getMonth", DateGetMonth,
- "getUTCMonth", DateGetUTCMonth,
- "getDate", DateGetDate,
- "getUTCDate", DateGetUTCDate,
- "getDay", DateGetDay,
- "getUTCDay", DateGetUTCDay,
- "getHours", DateGetHours,
- "getUTCHours", DateGetUTCHours,
- "getMinutes", DateGetMinutes,
- "getUTCMinutes", DateGetUTCMinutes,
- "getSeconds", DateGetSeconds,
- "getUTCSeconds", DateGetUTCSeconds,
- "getMilliseconds", DateGetMilliseconds,
- "getUTCMilliseconds", DateGetUTCMilliseconds,
- "getTimezoneOffset", DateGetTimezoneOffset,
- "setTime", DateSetTime,
- "setMilliseconds", DateSetMilliseconds,
- "setUTCMilliseconds", DateSetUTCMilliseconds,
- "setSeconds", DateSetSeconds,
- "setUTCSeconds", DateSetUTCSeconds,
- "setMinutes", DateSetMinutes,
- "setUTCMinutes", DateSetUTCMinutes,
- "setHours", DateSetHours,
- "setUTCHours", DateSetUTCHours,
- "setDate", DateSetDate,
- "setUTCDate", DateSetUTCDate,
- "setMonth", DateSetMonth,
- "setUTCMonth", DateSetUTCMonth,
- "setFullYear", DateSetFullYear,
- "setUTCFullYear", DateSetUTCFullYear,
- "toGMTString", DateToGMTString,
- "toUTCString", DateToUTCString,
- "getYear", DateGetYear,
- "setYear", DateSetYear,
- "toISOString", DateToISOString,
- "toJSON", DateToJSON
- ));
-}
-
-SetupDate();
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