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Diffstat (limited to 'Source/JavaScriptCore/runtime/JSDateMath.h')
| -rw-r--r-- | Source/JavaScriptCore/runtime/JSDateMath.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/runtime/JSDateMath.h b/Source/JavaScriptCore/runtime/JSDateMath.h new file mode 100644 index 000000000..ba6d647dd --- /dev/null +++ b/Source/JavaScriptCore/runtime/JSDateMath.h @@ -0,0 +1,169 @@ +/* + * 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 JSDateMath_h +#define JSDateMath_h + +#include <wtf/DateMath.h> + +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 // JSDateMath_h |