+++ /dev/null
-/*
- * 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) 2010 Research In Motion Limited. All rights reserved.
- *
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * 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.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- */
-
-#ifndef DateMath_h
-#define DateMath_h
-
-#include <math.h>
-#include <stdint.h>
-#include <string.h>
-#include <time.h>
-#include <wtf/CurrentTime.h>
-#include <wtf/Noncopyable.h>
-#include <wtf/OwnArrayPtr.h>
-#include <wtf/PassOwnArrayPtr.h>
-#include <wtf/UnusedParam.h>
-
-namespace WTF {
-void initializeDates();
-int equivalentYearForDST(int year);
-
-// Not really math related, but this is currently the only shared place to put these.
-double parseES5DateFromNullTerminatedCharacters(const char* dateString);
-double parseDateFromNullTerminatedCharacters(const char* dateString);
-double timeClip(double);
-
-inline double jsCurrentTime()
-{
- // JavaScript doesn't recognize fractions of a millisecond.
- return floor(WTF::currentTimeMS());
-}
-
-const char * const weekdayName[7] = { "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun" };
-const char * const monthName[12] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
-
-const double hoursPerDay = 24.0;
-const double minutesPerHour = 60.0;
-const double secondsPerHour = 60.0 * 60.0;
-const double secondsPerMinute = 60.0;
-const double msPerSecond = 1000.0;
-const double msPerMinute = 60.0 * 1000.0;
-const double msPerHour = 60.0 * 60.0 * 1000.0;
-const double msPerDay = 24.0 * 60.0 * 60.0 * 1000.0;
-const double msPerMonth = 2592000000.0;
-
-// Returns the number of days from 1970-01-01 to the specified date.
-double dateToDaysFrom1970(int year, int month, int day);
-int msToYear(double ms);
-int dayInYear(double ms, int year);
-int monthFromDayInYear(int dayInYear, bool leapYear);
-int dayInMonthFromDayInYear(int dayInYear, bool leapYear);
-
-// Returns offset milliseconds for UTC and DST.
-int32_t calculateUTCOffset();
-double calculateDSTOffset(double ms, double utcOffset);
-
-} // namespace WTF
-
-using WTF::adoptArrayPtr;
-using WTF::dateToDaysFrom1970;
-using WTF::dayInMonthFromDayInYear;
-using WTF::dayInYear;
-using WTF::minutesPerHour;
-using WTF::monthFromDayInYear;
-using WTF::msPerDay;
-using WTF::msPerMinute;
-using WTF::msPerSecond;
-using WTF::msToYear;
-using WTF::secondsPerMinute;
-using WTF::parseDateFromNullTerminatedCharacters;
-using WTF::calculateUTCOffset;
-using WTF::calculateDSTOffset;
-
-#if USE(JSC)
-namespace JSC {
-class ExecState;
-struct GregorianDateTime;
-
-void msToGregorianDateTime(ExecState*, double, bool outputIsUTC, GregorianDateTime&);
-double gregorianDateTimeToMS(ExecState*, const GregorianDateTime&, double, bool inputIsUTC);
-double getUTCOffset(ExecState*);
-double parseDateFromNullTerminatedCharacters(ExecState*, const char* dateString);
-
-// Intentionally overridding the default tm of the system.
-// The members of tm differ on various operating systems.
-struct GregorianDateTime {
- WTF_MAKE_NONCOPYABLE(GregorianDateTime);
-public:
- GregorianDateTime()
- : second(0)
- , minute(0)
- , hour(0)
- , weekDay(0)
- , monthDay(0)
- , yearDay(0)
- , month(0)
- , year(0)
- , isDST(0)
- , utcOffset(0)
- {
- }
-
- GregorianDateTime(ExecState* exec, const tm& inTm)
- : second(inTm.tm_sec)
- , minute(inTm.tm_min)
- , hour(inTm.tm_hour)
- , weekDay(inTm.tm_wday)
- , monthDay(inTm.tm_mday)
- , yearDay(inTm.tm_yday)
- , month(inTm.tm_mon)
- , year(inTm.tm_year)
- , isDST(inTm.tm_isdst)
- {
- UNUSED_PARAM(exec);
-#if HAVE(TM_GMTOFF)
- utcOffset = static_cast<int>(inTm.tm_gmtoff);
-#else
- utcOffset = static_cast<int>(getUTCOffset(exec) / WTF::msPerSecond + (isDST ? WTF::secondsPerHour : 0));
-#endif
-
-#if HAVE(TM_ZONE)
- int inZoneSize = strlen(inTm.tm_zone) + 1;
- timeZone = adoptArrayPtr(new char[inZoneSize]);
- strncpy(timeZone.get(), inTm.tm_zone, inZoneSize);
-#else
- timeZone = nullptr;
-#endif
- }
-
- operator tm() const
- {
- tm ret;
- memset(&ret, 0, sizeof(ret));
-
- ret.tm_sec = second;
- ret.tm_min = minute;
- ret.tm_hour = hour;
- ret.tm_wday = weekDay;
- ret.tm_mday = monthDay;
- ret.tm_yday = yearDay;
- ret.tm_mon = month;
- ret.tm_year = year;
- ret.tm_isdst = isDST;
-
-#if HAVE(TM_GMTOFF)
- ret.tm_gmtoff = static_cast<long>(utcOffset);
-#endif
-#if HAVE(TM_ZONE)
- ret.tm_zone = timeZone.get();
-#endif
-
- return ret;
- }
-
- void copyFrom(const GregorianDateTime& rhs)
- {
- second = rhs.second;
- minute = rhs.minute;
- hour = rhs.hour;
- weekDay = rhs.weekDay;
- monthDay = rhs.monthDay;
- yearDay = rhs.yearDay;
- month = rhs.month;
- year = rhs.year;
- isDST = rhs.isDST;
- utcOffset = rhs.utcOffset;
- if (rhs.timeZone) {
- int inZoneSize = strlen(rhs.timeZone.get()) + 1;
- timeZone = adoptArrayPtr(new char[inZoneSize]);
- strncpy(timeZone.get(), rhs.timeZone.get(), inZoneSize);
- } else
- timeZone = nullptr;
- }
-
- int second;
- int minute;
- int hour;
- int weekDay;
- int monthDay;
- int yearDay;
- int month;
- int year;
- int isDST;
- int utcOffset;
- OwnArrayPtr<char> timeZone;
-};
-
-static inline int gmtoffset(const GregorianDateTime& t)
-{
- return t.utcOffset;
-}
-} // namespace JSC
-#endif // USE(JSC)
-
-#endif // DateMath_h
projects / apple / javascriptcore.git / blobdiff