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/*
* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
* Copyright (C) 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
*
*/
#ifndef DateInstance_h
#define DateInstance_h
#include "JSWrapperObject.h"
namespace WTF {
struct GregorianDateTime;
}
namespace JSC {
class DateInstance : public JSWrapperObject {
public:
DateInstance(ExecState*, double);
DateInstance(ExecState*, NonNullPassRefPtr<Structure>, double);
explicit DateInstance(ExecState*, NonNullPassRefPtr<Structure>);
double internalNumber() const { return internalValue().uncheckedGetNumber(); }
static JS_EXPORTDATA const ClassInfo info;
const GregorianDateTime* gregorianDateTime(ExecState* exec) const
{
if (m_data && m_data->m_gregorianDateTimeCachedForMS == internalNumber())
return &m_data->m_cachedGregorianDateTime;
return calculateGregorianDateTime(exec);
}
const GregorianDateTime* gregorianDateTimeUTC(ExecState* exec) const
{
if (m_data && m_data->m_gregorianDateTimeUTCCachedForMS == internalNumber())
return &m_data->m_cachedGregorianDateTimeUTC;
return calculateGregorianDateTimeUTC(exec);
}
static PassRefPtr<Structure> createStructure(JSValue prototype)
{
return Structure::create(prototype, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount);
}
protected:
static const unsigned StructureFlags = OverridesMarkChildren | JSWrapperObject::StructureFlags;
private:
const GregorianDateTime* calculateGregorianDateTime(ExecState*) const;
const GregorianDateTime* calculateGregorianDateTimeUTC(ExecState*) const;
virtual const ClassInfo* classInfo() const { return &info; }
mutable RefPtr<DateInstanceData> m_data;
};
DateInstance* asDateInstance(JSValue);
inline DateInstance* asDateInstance(JSValue value)
{
ASSERT(asObject(value)->inherits(&DateInstance::info));
return static_cast<DateInstance*>(asObject(value));
}
} // namespace JSC
#endif // DateInstance_h
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