aboutsummaryrefslogtreecommitdiffstats
path: root/src/3rdparty/javascriptcore/DateMath.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/3rdparty/javascriptcore/DateMath.cpp')
-rw-r--r--src/3rdparty/javascriptcore/DateMath.cpp393
1 files changed, 0 insertions, 393 deletions
diff --git a/src/3rdparty/javascriptcore/DateMath.cpp b/src/3rdparty/javascriptcore/DateMath.cpp
deleted file mode 100644
index be99d2ca25..0000000000
--- a/src/3rdparty/javascriptcore/DateMath.cpp
+++ /dev/null
@@ -1,393 +0,0 @@
-/*
- * Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
- * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
- * Copyright (C) 2009 Google Inc. All rights reserved.
- * Copyright (C) 2007-2009 Torch Mobile, Inc.
- *
- * The Original Code is Mozilla Communicator client code, released
- * March 31, 1998.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Alternatively, the contents of this file may be used under the terms
- * of either the Mozilla Public License Version 1.1, found at
- * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
- * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
- * (the "GPL"), in which case the provisions of the MPL or the GPL are
- * applicable instead of those above. If you wish to allow use of your
- * version of this file only under the terms of one of those two
- * licenses (the MPL or the GPL) and not to allow others to use your
- * version of this file under the LGPL, indicate your decision by
- * deletingthe provisions above and replace them with the notice and
- * other provisions required by the MPL or the GPL, as the case may be.
- * If you do not delete the provisions above, a recipient may use your
- * version of this file under any of the LGPL, the MPL or the GPL.
-
- * 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.
- */
-
-#include "DateMath.h"
-
-#include <algorithm>
-#include <limits.h>
-#include <limits>
-#include <time.h>
-#include <cmath>
-
-//#if HAVE(SYS_TIME_H)
-#if defined(EXISTS_SYS_TIME)
-#include <sys/time.h>
-#endif
-
-//#if HAVE(SYS_TIMEB_H)
-#if defined(EXISTS_SYS_TIMEB)
-#include <sys/timeb.h>
-#endif
-
-#define NaN std::numeric_limits<double>::quiet_NaN()
-
-using namespace QV8DateConverter::WTF;
-
-namespace QV8DateConverter {
-
-namespace WTF {
-
-/* Constants */
-
-static const double minutesPerDay = 24.0 * 60.0;
-static const double secondsPerDay = 24.0 * 60.0 * 60.0;
-static const double secondsPerYear = 24.0 * 60.0 * 60.0 * 365.0;
-
-static const double usecPerSec = 1000000.0;
-
-static const double maxUnixTime = 2145859200.0; // 12/31/2037
-// ECMAScript asks not to support for a date of which total
-// millisecond value is larger than the following value.
-// See 15.9.1.14 of ECMA-262 5th edition.
-static const double maxECMAScriptTime = 8.64E15;
-
-// Day of year for the first day of each month, where index 0 is January, and day 0 is January 1.
-// First for non-leap years, then for leap years.
-static const int firstDayOfMonth[2][12] = {
- {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334},
- {0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335}
-};
-
-static inline bool isLeapYear(int year)
-{
- if (year % 4 != 0)
- return false;
- if (year % 400 == 0)
- return true;
- if (year % 100 == 0)
- return false;
- return true;
-}
-
-static inline int daysInYear(int year)
-{
- return 365 + isLeapYear(year);
-}
-
-static inline double daysFrom1970ToYear(int year)
-{
- // The Gregorian Calendar rules for leap years:
- // Every fourth year is a leap year. 2004, 2008, and 2012 are leap years.
- // However, every hundredth year is not a leap year. 1900 and 2100 are not leap years.
- // Every four hundred years, there's a leap year after all. 2000 and 2400 are leap years.
-
- static const int leapDaysBefore1971By4Rule = 1970 / 4;
- static const int excludedLeapDaysBefore1971By100Rule = 1970 / 100;
- static const int leapDaysBefore1971By400Rule = 1970 / 400;
-
- const double yearMinusOne = year - 1;
- const double yearsToAddBy4Rule = floor(yearMinusOne / 4.0) - leapDaysBefore1971By4Rule;
- const double yearsToExcludeBy100Rule = floor(yearMinusOne / 100.0) - excludedLeapDaysBefore1971By100Rule;
- const double yearsToAddBy400Rule = floor(yearMinusOne / 400.0) - leapDaysBefore1971By400Rule;
-
- return 365.0 * (year - 1970) + yearsToAddBy4Rule - yearsToExcludeBy100Rule + yearsToAddBy400Rule;
-}
-
-static inline double msToDays(double ms)
-{
- return floor(ms / msPerDay);
-}
-
-int msToYear(double ms)
-{
- int approxYear = static_cast<int>(floor(ms / (msPerDay * 365.2425)) + 1970);
- double msFromApproxYearTo1970 = msPerDay * daysFrom1970ToYear(approxYear);
- if (msFromApproxYearTo1970 > ms)
- return approxYear - 1;
- if (msFromApproxYearTo1970 + msPerDay * daysInYear(approxYear) <= ms)
- return approxYear + 1;
- return approxYear;
-}
-
-int dayInYear(double ms, int year)
-{
- return static_cast<int>(msToDays(ms) - daysFrom1970ToYear(year));
-}
-
-static inline double msToMilliseconds(double ms)
-{
- double result = fmod(ms, msPerDay);
- if (result < 0)
- result += msPerDay;
- return result;
-}
-
-// 0: Sunday, 1: Monday, etc.
-static inline int msToWeekDay(double ms)
-{
- int wd = (static_cast<int>(msToDays(ms)) + 4) % 7;
- if (wd < 0)
- wd += 7;
- return wd;
-}
-
-static inline int msToSeconds(double ms)
-{
- double result = fmod(floor(ms / msPerSecond), secondsPerMinute);
- if (result < 0)
- result += secondsPerMinute;
- return static_cast<int>(result);
-}
-
-static inline int msToMinutes(double ms)
-{
- double result = fmod(floor(ms / msPerMinute), minutesPerHour);
- if (result < 0)
- result += minutesPerHour;
- return static_cast<int>(result);
-}
-
-static inline int msToHours(double ms)
-{
- double result = fmod(floor(ms/msPerHour), hoursPerDay);
- if (result < 0)
- result += hoursPerDay;
- return static_cast<int>(result);
-}
-
-int monthFromDayInYear(int dayInYear, bool leapYear)
-{
- const int d = dayInYear;
- int step;
-
- if (d < (step = 31))
- return 0;
- step += (leapYear ? 29 : 28);
- if (d < step)
- return 1;
- if (d < (step += 31))
- return 2;
- if (d < (step += 30))
- return 3;
- if (d < (step += 31))
- return 4;
- if (d < (step += 30))
- return 5;
- if (d < (step += 31))
- return 6;
- if (d < (step += 31))
- return 7;
- if (d < (step += 30))
- return 8;
- if (d < (step += 31))
- return 9;
- if (d < (step += 30))
- return 10;
- return 11;
-}
-
-static inline bool checkMonth(int dayInYear, int& startDayOfThisMonth, int& startDayOfNextMonth, int daysInThisMonth)
-{
- startDayOfThisMonth = startDayOfNextMonth;
- startDayOfNextMonth += daysInThisMonth;
- return (dayInYear <= startDayOfNextMonth);
-}
-
-int dayInMonthFromDayInYear(int dayInYear, bool leapYear)
-{
- const int d = dayInYear;
- int step;
- int next = 30;
-
- if (d <= next)
- return d + 1;
- const int daysInFeb = (leapYear ? 29 : 28);
- if (checkMonth(d, step, next, daysInFeb))
- return d - step;
- if (checkMonth(d, step, next, 31))
- return d - step;
- if (checkMonth(d, step, next, 30))
- return d - step;
- if (checkMonth(d, step, next, 31))
- return d - step;
- if (checkMonth(d, step, next, 30))
- return d - step;
- if (checkMonth(d, step, next, 31))
- return d - step;
- if (checkMonth(d, step, next, 31))
- return d - step;
- if (checkMonth(d, step, next, 30))
- return d - step;
- if (checkMonth(d, step, next, 31))
- return d - step;
- if (checkMonth(d, step, next, 30))
- return d - step;
- step = next;
- return d - step;
-}
-
-static inline int monthToDayInYear(int month, bool isLeapYear)
-{
- return firstDayOfMonth[isLeapYear][month];
-}
-
-static inline double timeToMS(double hour, double min, double sec, double ms)
-{
- return (((hour * minutesPerHour + min) * secondsPerMinute + sec) * msPerSecond + ms);
-}
-
-double dateToDaysFrom1970(int year, int month, int day)
-{
- year += month / 12;
-
- month %= 12;
- if (month < 0) {
- month += 12;
- --year;
- }
-
- double yearday = floor(daysFrom1970ToYear(year));
- int monthday = monthToDayInYear(month, isLeapYear(year));
-
- return yearday + monthday + day - 1;
-}
-
-static inline double ymdhmsToSeconds(long year, int mon, int day, int hour, int minute, int second)
-{
- double days = (day - 32075)
- + floor(1461 * (year + 4800.0 + (mon - 14) / 12) / 4)
- + 367 * (mon - 2 - (mon - 14) / 12 * 12) / 12
- - floor(3 * ((year + 4900.0 + (mon - 14) / 12) / 100) / 4)
- - 2440588;
- return ((days * hoursPerDay + hour) * minutesPerHour + minute) * secondsPerMinute + second;
-}
-
-// We follow the recommendation of RFC 2822 to consider all
-// obsolete time zones not listed here equivalent to "-0000".
-static const struct KnownZone {
- const
- char tzName[4];
- int tzOffset;
-} known_zones[] = {
- { "UT", 0 },
- { "GMT", 0 },
- { "EST", -300 },
- { "EDT", -240 },
- { "CST", -360 },
- { "CDT", -300 },
- { "MST", -420 },
- { "MDT", -360 },
- { "PST", -480 },
- { "PDT", -420 }
-};
-
-double timeClip(double t)
-{
-#if defined(_MSC_VER)
- if (!_finite(t) || fabs(t) > maxECMAScriptTime)
- return NaN;
- return t >= 0 ? floor(t) : ceil(t);
-#else
-
-#if defined(__QNXNTO__)
- if (!isfinite(t) || fabs(t) > maxECMAScriptTime)
- return NaN;
-#else
- if (!std::isfinite(t) || fabs(t) > maxECMAScriptTime)
- return NaN;
-#endif
-
- return trunc(t);
-#endif
-}
-} // namespace WTF
-
-namespace JSC {
-
-double gregorianDateTimeToMS(const GregorianDateTime& t, double milliSeconds)
-{
- double day = dateToDaysFrom1970(t.year + 1900, t.month, t.monthDay);
- double ms = timeToMS(t.hour, t.minute, t.second, milliSeconds);
- double result = (day * WTF::msPerDay) + ms;
-
- return result;
-}
-
-// input is UTC
-void msToGregorianDateTime(double ms, GregorianDateTime& tm)
-{
- const int year = msToYear(ms);
- tm.second = msToSeconds(ms);
- tm.minute = msToMinutes(ms);
- tm.hour = msToHours(ms);
- tm.weekDay = msToWeekDay(ms);
- tm.yearDay = dayInYear(ms, year);
- tm.monthDay = dayInMonthFromDayInYear(tm.yearDay, isLeapYear(year));
- tm.month = monthFromDayInYear(tm.yearDay, isLeapYear(year));
- tm.year = year - 1900;
- tm.isDST = false;
- tm.utcOffset = static_cast<long>(0); // no ExecState :. cannot calculate offset. Assume UTC output.
- tm.timeZone = NULL;
-}
-
-} // namespace JSC
-
-} // namespace QV8DateConverter
-