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/*
* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
* Copyright (C) 2008-2023 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
*
*/
#pragma once
#include "JSObject.h"
namespace JSC {
class DateInstance final : public JSNonFinalObject {
public:
using Base = JSNonFinalObject;
static constexpr DestructionMode needsDestruction = NeedsDestruction;
static void destroy(JSCell* cell)
{
static_cast<DateInstance*>(cell)->DateInstance::~DateInstance();
}
template<typename CellType, SubspaceAccess mode>
static GCClient::IsoSubspace* subspaceFor(VM& vm)
{
return &vm.dateInstanceSpace();
}
static DateInstance* create(VM& vm, Structure* structure, double date)
{
DateInstance* instance = new (NotNull, allocateCell<DateInstance>(vm)) DateInstance(vm, structure);
instance->finishCreation(vm, date);
return instance;
}
static DateInstance* create(VM& vm, Structure* structure)
{
DateInstance* instance = new (NotNull, allocateCell<DateInstance>(vm)) DateInstance(vm, structure);
instance->finishCreation(vm);
return instance;
}
double internalNumber() const { return m_internalNumber; }
void setInternalNumber(double value) { m_internalNumber = value; }
DECLARE_EXPORT_INFO;
const GregorianDateTime* gregorianDateTime(DateCache& cache) const
{
if (m_data && m_data->m_gregorianDateTimeCachedForMS == internalNumber())
return &m_data->m_cachedGregorianDateTime;
return calculateGregorianDateTime(cache);
}
const GregorianDateTime* gregorianDateTimeUTC(DateCache& cache) const
{
if (m_data && m_data->m_gregorianDateTimeUTCCachedForMS == internalNumber())
return &m_data->m_cachedGregorianDateTimeUTC;
return calculateGregorianDateTimeUTC(cache);
}
inline static Structure* createStructure(VM&, JSGlobalObject*, JSValue);
static constexpr ptrdiff_t offsetOfInternalNumber() { return OBJECT_OFFSETOF(DateInstance, m_internalNumber); }
static constexpr ptrdiff_t offsetOfData() { return OBJECT_OFFSETOF(DateInstance, m_data); }
private:
JS_EXPORT_PRIVATE DateInstance(VM&, Structure*);
DECLARE_DEFAULT_FINISH_CREATION;
JS_EXPORT_PRIVATE void finishCreation(VM&, double);
JS_EXPORT_PRIVATE const GregorianDateTime* calculateGregorianDateTime(DateCache&) const;
JS_EXPORT_PRIVATE const GregorianDateTime* calculateGregorianDateTimeUTC(DateCache&) const;
double m_internalNumber { PNaN };
mutable RefPtr<DateInstanceData> m_data;
};
} // namespace JSC
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