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/*
* Copyright (C) 1999-2000,2003 Harri Porten (porten@kde.org)
* Copyright (C) 2007, 2008, 2011 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"
#include "Operations.h"
namespace JSC {
static JSValue numberConstructorNaNValue(ExecState*, JSValue, PropertyName);
static JSValue numberConstructorNegInfinity(ExecState*, JSValue, PropertyName);
static JSValue numberConstructorPosInfinity(ExecState*, JSValue, PropertyName);
static JSValue numberConstructorMaxValue(ExecState*, JSValue, PropertyName);
static JSValue numberConstructorMinValue(ExecState*, JSValue, PropertyName);
} // namespace JSC
#include "NumberConstructor.lut.h"
namespace JSC {
ASSERT_HAS_TRIVIAL_DESTRUCTOR(NumberConstructor);
const ClassInfo NumberConstructor::s_info = { "Function", &InternalFunction::s_info, 0, ExecState::numberConstructorTable, CREATE_METHOD_TABLE(NumberConstructor) };
/* Source for NumberConstructor.lut.h
@begin numberConstructorTable
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(JSGlobalObject* globalObject, Structure* structure)
: InternalFunction(globalObject, structure)
{
}
void NumberConstructor::finishCreation(ExecState* exec, NumberPrototype* numberPrototype)
{
Base::finishCreation(exec->vm(), numberPrototype->s_info.className);
ASSERT(inherits(&s_info));
// Number.Prototype
putDirectWithoutTransition(exec->vm(), exec->propertyNames().prototype, numberPrototype, DontEnum | DontDelete | ReadOnly);
// no. of arguments for constructor
putDirectWithoutTransition(exec->vm(), exec->propertyNames().length, jsNumber(1), ReadOnly | DontEnum | DontDelete);
}
bool NumberConstructor::getOwnPropertySlot(JSCell* cell, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
{
return getStaticValueSlot<NumberConstructor, InternalFunction>(exec, ExecState::numberConstructorTable(exec), jsCast<NumberConstructor*>(cell), propertyName, slot);
}
bool NumberConstructor::getOwnPropertyDescriptor(JSObject* object, ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor)
{
return getStaticValueDescriptor<NumberConstructor, InternalFunction>(exec, ExecState::numberConstructorTable(exec), jsCast<NumberConstructor*>(object), propertyName, descriptor);
}
void NumberConstructor::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot)
{
lookupPut<NumberConstructor, InternalFunction>(exec, propertyName, value, ExecState::numberConstructorTable(exec), jsCast<NumberConstructor*>(cell), slot);
}
static JSValue numberConstructorNaNValue(ExecState*, JSValue, PropertyName)
{
return jsNaN();
}
static JSValue numberConstructorNegInfinity(ExecState*, JSValue, PropertyName)
{
return jsNumber(-std::numeric_limits<double>::infinity());
}
static JSValue numberConstructorPosInfinity(ExecState*, JSValue, PropertyName)
{
return jsNumber(std::numeric_limits<double>::infinity());
}
static JSValue numberConstructorMaxValue(ExecState*, JSValue, PropertyName)
{
return jsNumber(1.7976931348623157E+308);
}
static JSValue numberConstructorMinValue(ExecState*, JSValue, PropertyName)
{
return jsNumber(5E-324);
}
// ECMA 15.7.1
static EncodedJSValue JSC_HOST_CALL constructWithNumberConstructor(ExecState* exec)
{
NumberObject* object = NumberObject::create(exec->vm(), asInternalFunction(exec->callee())->globalObject()->numberObjectStructure());
double n = exec->argumentCount() ? exec->argument(0).toNumber(exec) : 0;
object->setInternalValue(exec->vm(), jsNumber(n));
return JSValue::encode(object);
}
ConstructType NumberConstructor::getConstructData(JSCell*, 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(JSCell*, CallData& callData)
{
callData.native.function = callNumberConstructor;
return CallTypeHost;
}
} // namespace JSC
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