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/*
* Copyright (C) 1999-2000,2003 Harri Porten (porten@kde.org)
* Copyright (C) 2007-2019 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
*
*/
#include "config.h"
#include "NumberConstructor.h"
#include "JSCInlines.h"
#include "NumberObject.h"
#include "NumberPrototype.h"
namespace JSC {
static JSC_DECLARE_HOST_FUNCTION(numberConstructorFuncIsInteger);
static JSC_DECLARE_HOST_FUNCTION(numberConstructorFuncIsSafeInteger);
} // namespace JSC
#include "NumberConstructor.lut.h"
namespace JSC {
STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(NumberConstructor);
const ClassInfo NumberConstructor::s_info = { "Function"_s, &InternalFunction::s_info, &numberConstructorTable, nullptr, CREATE_METHOD_TABLE(NumberConstructor) };
/* Source for NumberConstructor.lut.h
@begin numberConstructorTable
isFinite JSBuiltin DontEnum|Function 1
isNaN JSBuiltin DontEnum|Function 1
isSafeInteger numberConstructorFuncIsSafeInteger DontEnum|Function 1
@end
*/
static JSC_DECLARE_HOST_FUNCTION(callNumberConstructor);
static JSC_DECLARE_HOST_FUNCTION(constructNumberConstructor);
NumberConstructor::NumberConstructor(VM& vm, Structure* structure)
: InternalFunction(vm, structure, callNumberConstructor, constructNumberConstructor)
{
}
void NumberConstructor::finishCreation(VM& vm, NumberPrototype* numberPrototype)
{
Base::finishCreation(vm, 1, vm.propertyNames->Number.string(), PropertyAdditionMode::WithoutStructureTransition);
ASSERT(inherits(info()));
JSGlobalObject* globalObject = numberPrototype->globalObject();
putDirectWithoutTransition(vm, vm.propertyNames->prototype, numberPrototype, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);
putDirectWithoutTransition(vm, Identifier::fromString(vm, "EPSILON"_s), jsDoubleNumber(std::numeric_limits<double>::epsilon()), PropertyAttribute::DontDelete | PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly);
putDirectWithoutTransition(vm, Identifier::fromString(vm, "MAX_VALUE"_s), jsDoubleNumber(1.7976931348623157E+308), PropertyAttribute::DontDelete | PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly);
putDirectWithoutTransition(vm, Identifier::fromString(vm, "MIN_VALUE"_s), jsDoubleNumber(5E-324), PropertyAttribute::DontDelete | PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly);
putDirectWithoutTransition(vm, Identifier::fromString(vm, "MAX_SAFE_INTEGER"_s), jsDoubleNumber(maxSafeInteger()), PropertyAttribute::DontDelete | PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly);
putDirectWithoutTransition(vm, Identifier::fromString(vm, "MIN_SAFE_INTEGER"_s), jsDoubleNumber(minSafeInteger()), PropertyAttribute::DontDelete | PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly);
putDirectWithoutTransition(vm, Identifier::fromString(vm, "NEGATIVE_INFINITY"_s), jsDoubleNumber(-std::numeric_limits<double>::infinity()), PropertyAttribute::DontDelete | PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly);
putDirectWithoutTransition(vm, Identifier::fromString(vm, "POSITIVE_INFINITY"_s), jsDoubleNumber(std::numeric_limits<double>::infinity()), PropertyAttribute::DontDelete | PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly);
putDirectWithoutTransition(vm, vm.propertyNames->NaN, jsNaN(), PropertyAttribute::DontDelete | PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly);
putDirectWithoutTransition(vm, vm.propertyNames->parseInt, numberPrototype->globalObject()->parseIntFunction(), static_cast<unsigned>(PropertyAttribute::DontEnum));
putDirectWithoutTransition(vm, vm.propertyNames->parseFloat, numberPrototype->globalObject()->parseFloatFunction(), static_cast<unsigned>(PropertyAttribute::DontEnum));
JSC_NATIVE_INTRINSIC_FUNCTION_WITHOUT_TRANSITION(Identifier::fromString(vm, "isInteger"_s), numberConstructorFuncIsInteger, static_cast<unsigned>(PropertyAttribute::DontEnum), 1, NumberIsIntegerIntrinsic);
}
// ECMA 15.7.1
JSC_DEFINE_HOST_FUNCTION(constructNumberConstructor, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
double n = 0;
if (callFrame->argumentCount()) {
JSValue numeric = callFrame->uncheckedArgument(0).toNumeric(globalObject);
RETURN_IF_EXCEPTION(scope, { });
if (numeric.isNumber())
n = numeric.asNumber();
else {
ASSERT(numeric.isBigInt());
numeric = JSBigInt::toNumber(numeric);
ASSERT(numeric.isNumber());
n = numeric.asNumber();
}
}
JSObject* newTarget = asObject(callFrame->newTarget());
Structure* structure = JSC_GET_DERIVED_STRUCTURE(vm, numberObjectStructure, newTarget, callFrame->jsCallee());
RETURN_IF_EXCEPTION(scope, { });
NumberObject* object = NumberObject::create(vm, structure);
object->setInternalValue(vm, jsNumber(n));
return JSValue::encode(object);
}
// ECMA 15.7.2
JSC_DEFINE_HOST_FUNCTION(callNumberConstructor, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (!callFrame->argumentCount())
return JSValue::encode(jsNumber(0));
JSValue numeric = callFrame->uncheckedArgument(0).toNumeric(globalObject);
RETURN_IF_EXCEPTION(scope, { });
if (numeric.isNumber())
return JSValue::encode(numeric);
ASSERT(numeric.isBigInt());
return JSValue::encode(JSBigInt::toNumber(numeric));
}
// ECMA-262 20.1.2.3
JSC_DEFINE_HOST_FUNCTION(numberConstructorFuncIsInteger, (JSGlobalObject*, CallFrame* callFrame))
{
return JSValue::encode(jsBoolean(NumberConstructor::isIntegerImpl(callFrame->argument(0))));
}
// ECMA-262 20.1.2.5
JSC_DEFINE_HOST_FUNCTION(numberConstructorFuncIsSafeInteger, (JSGlobalObject*, CallFrame* callFrame))
{
JSValue argument = callFrame->argument(0);
if (argument.isInt32())
return JSValue::encode(jsBoolean(true));
if (!argument.isDouble())
return JSValue::encode(jsBoolean(false));
return JSValue::encode(jsBoolean(isSafeInteger(argument.asDouble())));
}
} // namespace JSC