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/*
* 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->globalData(), exec->propertyNames().prototype, numberPrototype, DontEnum | DontDelete | ReadOnly);
// no. of arguments for constructor
putDirectWithoutTransition(exec->globalData(), exec->propertyNames().length, jsNumber(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*, JSValue, const Identifier&)
{
return jsNaN();
}
static JSValue numberConstructorNegInfinity(ExecState*, JSValue, const Identifier&)
{
return jsNumber(-Inf);
}
static JSValue numberConstructorPosInfinity(ExecState*, JSValue, const Identifier&)
{
return jsNumber(Inf);
}
static JSValue numberConstructorMaxValue(ExecState*, JSValue, const Identifier&)
{
return jsNumber(1.7976931348623157E+308);
}
static JSValue numberConstructorMinValue(ExecState*, JSValue, const Identifier&)
{
return jsNumber(5E-324);
}
// ECMA 15.7.1
static EncodedJSValue JSC_HOST_CALL constructWithNumberConstructor(ExecState* exec)
{
NumberObject* object = new (exec) NumberObject(exec->globalData(), exec->lexicalGlobalObject()->numberObjectStructure());
double n = exec->argumentCount() ? exec->argument(0).toNumber(exec) : 0;
object->setInternalValue(exec->globalData(), jsNumber(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->argumentCount() ? 0 : exec->argument(0).toNumber(exec)));
}
CallType NumberConstructor::getCallData(CallData& callData)
{
callData.native.function = callNumberConstructor;
return CallTypeHost;
}
} // namespace JSC
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