blob: 58cf928798a804c35533be93042dd39226796578 [file] [log] [blame]
/*
* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
* Copyright (C) 2008-2019 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 "InternalFunction.h"
namespace JSC {
class NumberPrototype;
class GetterSetter;
class NumberConstructor final : public InternalFunction {
public:
typedef InternalFunction Base;
static constexpr unsigned StructureFlags = Base::StructureFlags | ImplementsHasInstance | HasStaticPropertyTable;
static NumberConstructor* create(VM& vm, Structure* structure, NumberPrototype* numberPrototype, GetterSetter*)
{
NumberConstructor* constructor = new (NotNull, allocateCell<NumberConstructor>(vm.heap)) NumberConstructor(vm, structure);
constructor->finishCreation(vm, numberPrototype);
return constructor;
}
DECLARE_INFO;
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue proto)
{
return Structure::create(vm, globalObject, proto, TypeInfo(InternalFunctionType, StructureFlags), info());
}
static bool isIntegerImpl(JSValue value)
{
if (value.isInt32())
return true;
if (!value.isDouble())
return false;
double number = value.asDouble();
return std::isfinite(number) && trunc(number) == number;
}
protected:
void finishCreation(VM&, NumberPrototype*);
private:
NumberConstructor(VM&, Structure*);
};
} // namespace JSC