blob: 18787aee03caccfbacdf5da415fb08ad49b215e9 [file] [log] [blame]
/*
* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
* Copyright (C) 2004-2018 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 "DateConstructor.h"
#include "DateConversion.h"
#include "DateInstance.h"
#include "DatePrototype.h"
#include "JSDateMath.h"
#include "JSFunction.h"
#include "JSGlobalObject.h"
#include "JSString.h"
#include "ObjectPrototype.h"
#include "JSCInlines.h"
#include <math.h>
#include <time.h>
#include <wtf/MathExtras.h>
#if HAVE(SYS_TIME_H)
#include <sys/time.h>
#endif
#if HAVE(SYS_TIMEB_H)
#include <sys/timeb.h>
#endif
namespace JSC {
EncodedJSValue JSC_HOST_CALL dateParse(ExecState*);
EncodedJSValue JSC_HOST_CALL dateUTC(ExecState*);
}
#include "DateConstructor.lut.h"
namespace JSC {
using namespace WTF;
const ClassInfo DateConstructor::s_info = { "Function", &InternalFunction::s_info, &dateConstructorTable, nullptr, CREATE_METHOD_TABLE(DateConstructor) };
/* Source for DateConstructor.lut.h
@begin dateConstructorTable
parse dateParse DontEnum|Function 1
UTC dateUTC DontEnum|Function 7
now dateNow DontEnum|Function 0
@end
*/
STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(DateConstructor);
static EncodedJSValue JSC_HOST_CALL callDate(ExecState*);
static EncodedJSValue JSC_HOST_CALL constructWithDateConstructor(ExecState*);
DateConstructor::DateConstructor(VM& vm, Structure* structure)
: InternalFunction(vm, structure, callDate, constructWithDateConstructor)
{
}
void DateConstructor::finishCreation(VM& vm, DatePrototype* datePrototype)
{
Base::finishCreation(vm, vm.propertyNames->Date.string(), NameVisibility::Visible, NameAdditionMode::WithoutStructureTransition);
putDirectWithoutTransition(vm, vm.propertyNames->prototype, datePrototype, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);
putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(7), PropertyAttribute::ReadOnly | PropertyAttribute::DontEnum);
}
static double millisecondsFromComponents(ExecState* exec, const ArgList& args, WTF::TimeType timeType)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
// Initialize doubleArguments with default values.
double doubleArguments[7] {
0, 0, 1, 0, 0, 0, 0
};
unsigned numberOfUsedArguments = std::max(std::min<unsigned>(7U, args.size()), 1U);
for (unsigned i = 0; i < numberOfUsedArguments; ++i) {
doubleArguments[i] = args.at(i).toNumber(exec);
RETURN_IF_EXCEPTION(scope, 0);
}
for (unsigned i = 0; i < numberOfUsedArguments; ++i) {
if (!std::isfinite(doubleArguments[i]) || (doubleArguments[i] > INT_MAX) || (doubleArguments[i] < INT_MIN))
return PNaN;
}
GregorianDateTime t;
int year = JSC::toInt32(doubleArguments[0]);
t.setYear((year >= 0 && year <= 99) ? (year + 1900) : year);
t.setMonth(JSC::toInt32(doubleArguments[1]));
t.setMonthDay(JSC::toInt32(doubleArguments[2]));
t.setHour(JSC::toInt32(doubleArguments[3]));
t.setMinute(JSC::toInt32(doubleArguments[4]));
t.setSecond(JSC::toInt32(doubleArguments[5]));
t.setIsDST(-1);
return gregorianDateTimeToMS(vm, t, doubleArguments[6], timeType);
}
// ECMA 15.9.3
JSObject* constructDate(ExecState* exec, JSGlobalObject* globalObject, JSValue newTarget, const ArgList& args)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
int numArgs = args.size();
double value;
if (numArgs == 0) // new Date() ECMA 15.9.3.3
value = jsCurrentTime();
else if (numArgs == 1) {
JSValue arg0 = args.at(0);
if (auto* dateInstance = jsDynamicCast<DateInstance*>(vm, arg0))
value = dateInstance->internalNumber();
else {
JSValue primitive = arg0.toPrimitive(exec);
RETURN_IF_EXCEPTION(scope, nullptr);
if (primitive.isString()) {
value = parseDate(exec, vm, asString(primitive)->value(exec));
RETURN_IF_EXCEPTION(scope, nullptr);
} else
value = primitive.toNumber(exec);
}
} else
value = millisecondsFromComponents(exec, args, WTF::LocalTime);
RETURN_IF_EXCEPTION(scope, nullptr);
Structure* dateStructure = InternalFunction::createSubclassStructure(exec, newTarget, globalObject->dateStructure());
RETURN_IF_EXCEPTION(scope, nullptr);
return DateInstance::create(vm, dateStructure, value);
}
static EncodedJSValue JSC_HOST_CALL constructWithDateConstructor(ExecState* exec)
{
ArgList args(exec);
return JSValue::encode(constructDate(exec, jsCast<InternalFunction*>(exec->jsCallee())->globalObject(exec->vm()), exec->newTarget(), args));
}
// ECMA 15.9.2
static EncodedJSValue JSC_HOST_CALL callDate(ExecState* exec)
{
VM& vm = exec->vm();
GregorianDateTime ts;
msToGregorianDateTime(vm, WallTime::now().secondsSinceEpoch().milliseconds(), WTF::LocalTime, ts);
return JSValue::encode(jsNontrivialString(&vm, formatDateTime(ts, DateTimeFormatDateAndTime, false)));
}
EncodedJSValue JSC_HOST_CALL dateParse(ExecState* exec)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
String dateStr = exec->argument(0).toWTFString(exec);
RETURN_IF_EXCEPTION(scope, encodedJSValue());
RELEASE_AND_RETURN(scope, JSValue::encode(jsNumber(parseDate(exec, vm, dateStr))));
}
EncodedJSValue JSC_HOST_CALL dateNow(ExecState*)
{
return JSValue::encode(jsNumber(jsCurrentTime()));
}
EncodedJSValue JSC_HOST_CALL dateUTC(ExecState* exec)
{
double ms = millisecondsFromComponents(exec, ArgList(exec), WTF::UTCTime);
return JSValue::encode(jsNumber(timeClip(ms)));
}
} // namespace JSC