/*

 *  Copyright (C) 1999-2000,2003 Harri Porten (porten@kde.org)

 *  Copyright (C) 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 "NumberConstructor.h"

#include "Lookup.h"

#include "NumberObject.h"

#include "NumberPrototype.h"

namespace JSC {

ASSERT_CLASS_FITS_IN_CELL(NumberConstructor);

static JSValue numberConstructorNaNValue(ExecState*, JSValue, const Identifier&);

static JSValue numberConstructorNegInfinity(ExecState*, JSValue, const Identifier&);

static JSValue numberConstructorPosInfinity(ExecState*, JSValue, const Identifier&);

static JSValue numberConstructorMaxValue(ExecState*, JSValue, const Identifier&);

static JSValue numberConstructorMinValue(ExecState*, JSValue, const Identifier&);

} // namespace JSC

#include "NumberConstructor.lut.h"

namespace JSC {

const ClassInfo NumberConstructor::info = { "Function", &InternalFunction::info, 0, ExecState::numberTable };

/* Source for NumberConstructor.lut.h

@begin numberTable

   NaN                   numberConstructorNaNValue       DontEnum|DontDelete|ReadOnly

   NEGATIVE_INFINITY     numberConstructorNegInfinity    DontEnum|DontDelete|ReadOnly

   POSITIVE_INFINITY     numberConstructorPosInfinity    DontEnum|DontDelete|ReadOnly

   MAX_VALUE             numberConstructorMaxValue       DontEnum|DontDelete|ReadOnly

   MIN_VALUE             numberConstructorMinValue       DontEnum|DontDelete|ReadOnly

@end

*/

NumberConstructor::NumberConstructor(ExecState* exec, JSGlobalObject* globalObject, NonNullPassRefPtr<Structure> structure, NumberPrototype* numberPrototype)

    : InternalFunction(&exec->globalData(), globalObject, structure, Identifier(exec, numberPrototype->info.className))

{

    // Number.Prototype

    putDirectWithoutTransition(exec->propertyNames().prototype, numberPrototype, DontEnum | DontDelete | ReadOnly);

    // no. of arguments for constructor

    putDirectWithoutTransition(exec->propertyNames().length, jsNumber(exec, 1), ReadOnly | DontEnum | DontDelete);

}

bool NumberConstructor::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)

{

    return getStaticValueSlot<NumberConstructor, InternalFunction>(exec, ExecState::numberTable(exec), this, propertyName, slot);

}

bool NumberConstructor::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)

{

    return getStaticValueDescriptor<NumberConstructor, InternalFunction>(exec, ExecState::numberTable(exec), this, propertyName, descriptor);

}

static JSValue numberConstructorNaNValue(ExecState* exec, JSValue, const Identifier&)

{

    return jsNaN(exec);

}

static JSValue numberConstructorNegInfinity(ExecState* exec, JSValue, const Identifier&)

{

    return jsNumber(exec, -Inf);

}

static JSValue numberConstructorPosInfinity(ExecState* exec, JSValue, const Identifier&)

{

    return jsNumber(exec, Inf);

}

static JSValue numberConstructorMaxValue(ExecState* exec, JSValue, const Identifier&)

{

    return jsNumber(exec, 1.7976931348623157E+308);

}

static JSValue numberConstructorMinValue(ExecState* exec, JSValue, const Identifier&)

{

    return jsNumber(exec, 5E-324);

}

// ECMA 15.7.1

static EncodedJSValue JSC_HOST_CALL constructWithNumberConstructor(ExecState* exec)

{

    NumberObject* object = new (exec) NumberObject(exec->lexicalGlobalObject()->numberObjectStructure());

    double n = exec->argumentCount() ? exec->argument(0).toNumber(exec) : 0;

    object->setInternalValue(jsNumber(exec, n));

    return JSValue::encode(object);

}

ConstructType NumberConstructor::getConstructData(ConstructData& constructData)

{

    constructData.native.function = constructWithNumberConstructor;

    return ConstructTypeHost;

}

// ECMA 15.7.2

static EncodedJSValue JSC_HOST_CALL callNumberConstructor(ExecState* exec)

{

    return JSValue::encode(jsNumber(exec, !exec->argumentCount() ? 0 : exec->argument(0).toNumber(exec)));

}

CallType NumberConstructor::getCallData(CallData& callData)

{

    callData.native.function = callNumberConstructor;

    return CallTypeHost;

}

} // namespace JSC