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/*
* 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 "JSGlobalObject.h"
#include <math.h>
#include <wtf/DateMath.h>
#include <wtf/MathExtras.h>
using namespace WTF;
namespace JSC {
const ClassInfo DateInstance::info = {"Date", 0, 0, 0};
DateInstance::DateInstance(ExecState* exec, NonNullPassRefPtr<Structure> structure)
: JSWrapperObject(structure)
{
setInternalValue(jsNaN(exec));
}
DateInstance::DateInstance(ExecState* exec, double time)
: JSWrapperObject(exec->lexicalGlobalObject()->dateStructure())
{
setInternalValue(jsNumber(exec, timeClip(time)));
}
const GregorianDateTime* DateInstance::calculateGregorianDateTime(ExecState* exec) const
{
double milli = internalNumber();
if (isnan(milli))
return 0;
if (!m_data)
m_data = exec->globalData().dateInstanceCache.add(milli);
if (m_data->m_gregorianDateTimeCachedForMS != milli) {
msToGregorianDateTime(exec, milli, false, 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 (isnan(milli))
return 0;
if (!m_data)
m_data = exec->globalData().dateInstanceCache.add(milli);
if (m_data->m_gregorianDateTimeUTCCachedForMS != milli) {
msToGregorianDateTime(exec, milli, true, m_data->m_cachedGregorianDateTimeUTC);
m_data->m_gregorianDateTimeUTCCachedForMS = milli;
}
return &m_data->m_cachedGregorianDateTimeUTC;
}
} // namespace JSC
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