blob: 9e2dd2047eb9625076c44d359f4cf904c645f5ea [file] [log] [blame]
/*
* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. 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 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
*
*/
#include "config.h"
#include "DateInstance.h"
#include "JSDateMath.h"
#include "JSGlobalObject.h"
#include "JSCInlines.h"
#include <math.h>
#include <wtf/MathExtras.h>
namespace JSC {
using namespace WTF;
const ClassInfo DateInstance::s_info = {"Date", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(DateInstance)};
DateInstance::DateInstance(VM& vm, Structure* structure)
: Base(vm, structure)
{
}
void DateInstance::finishCreation(VM& vm)
{
Base::finishCreation(vm);
ASSERT(inherits(vm, info()));
}
void DateInstance::finishCreation(VM& vm, double time)
{
Base::finishCreation(vm);
ASSERT(inherits(vm, info()));
m_internalNumber = timeClip(time);
}
void DateInstance::destroy(JSCell* cell)
{
static_cast<DateInstance*>(cell)->DateInstance::~DateInstance();
}
const GregorianDateTime* DateInstance::calculateGregorianDateTime(ExecState* exec) const
{
double milli = internalNumber();
if (std::isnan(milli))
return 0;
VM& vm = exec->vm();
if (!m_data)
m_data = vm.dateInstanceCache.add(milli);
if (m_data->m_gregorianDateTimeCachedForMS != milli) {
msToGregorianDateTime(vm, milli, WTF::LocalTime, m_data->m_cachedGregorianDateTime);
m_data->m_gregorianDateTimeCachedForMS = milli;
}
return &m_data->m_cachedGregorianDateTime;
}
const GregorianDateTime* DateInstance::calculateGregorianDateTimeUTC(ExecState* exec) const
{
double milli = internalNumber();
if (std::isnan(milli))
return 0;
VM& vm = exec->vm();
if (!m_data)
m_data = vm.dateInstanceCache.add(milli);
if (m_data->m_gregorianDateTimeUTCCachedForMS != milli) {
msToGregorianDateTime(vm, milli, WTF::UTCTime, m_data->m_cachedGregorianDateTimeUTC);
m_data->m_gregorianDateTimeUTCCachedForMS = milli;
}
return &m_data->m_cachedGregorianDateTimeUTC;
}
} // namespace JSC