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/*
* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
* Copyright (C) 2004-2008, 2011, 2016 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 ENABLE(WEB_REPLAY)
#include "InputCursor.h"
#include "JSReplayInputs.h"
#endif
#if HAVE(SYS_TIME_H)
#include <sys/time.h>
#endif
#if HAVE(SYS_TIMEB_H)
#include <sys/timeb.h>
#endif
using namespace WTF;
namespace JSC {
EncodedJSValue JSC_HOST_CALL dateParse(ExecState*);
EncodedJSValue JSC_HOST_CALL dateUTC(ExecState*);
}
#include "DateConstructor.lut.h"
namespace JSC {
const ClassInfo DateConstructor::s_info = { "Function", &InternalFunction::s_info, &dateConstructorTable, 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
*/
#if ENABLE(WEB_REPLAY)
static double deterministicCurrentTime(JSGlobalObject* globalObject)
{
double currentTime = jsCurrentTime();
InputCursor& cursor = globalObject->inputCursor();
if (cursor.isCapturing())
cursor.appendInput<GetCurrentTime>(currentTime);
if (cursor.isReplaying()) {
if (GetCurrentTime* input = cursor.fetchInput<GetCurrentTime>())
currentTime = input->currentTime();
}
return currentTime;
}
#endif
#if ENABLE(WEB_REPLAY)
#define NORMAL_OR_DETERMINISTIC_FUNCTION(a, b) (b)
#else
#define NORMAL_OR_DETERMINISTIC_FUNCTION(a, b) (a)
#endif
STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(DateConstructor);
DateConstructor::DateConstructor(VM& vm, Structure* structure)
: InternalFunction(vm, structure)
{
}
void DateConstructor::finishCreation(VM& vm, DatePrototype* datePrototype)
{
Base::finishCreation(vm, "Date");
putDirectWithoutTransition(vm, vm.propertyNames->prototype, datePrototype, DontEnum | DontDelete | ReadOnly);
putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(7), ReadOnly | DontEnum | DontDelete);
}
static double millisecondsFromComponents(ExecState* exec, const ArgList& args, WTF::TimeType timeType)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
double doubleArguments[7];
for (int i = 0; i < 7; i++) {
doubleArguments[i] = args.at(i).toNumber(exec);
RETURN_IF_EXCEPTION(scope, 0);
}
int numArgs = args.size();
if ((!std::isfinite(doubleArguments[0]) || (doubleArguments[0] > INT_MAX) || (doubleArguments[0] < INT_MIN))
|| (!std::isfinite(doubleArguments[1]) || (doubleArguments[1] > INT_MAX) || (doubleArguments[1] < INT_MIN))
|| (numArgs >= 3 && (!std::isfinite(doubleArguments[2]) || (doubleArguments[2] > INT_MAX) || (doubleArguments[2] < INT_MIN)))
|| (numArgs >= 4 && (!std::isfinite(doubleArguments[3]) || (doubleArguments[3] > INT_MAX) || (doubleArguments[3] < INT_MIN)))
|| (numArgs >= 5 && (!std::isfinite(doubleArguments[4]) || (doubleArguments[4] > INT_MAX) || (doubleArguments[4] < INT_MIN)))
|| (numArgs >= 6 && (!std::isfinite(doubleArguments[5]) || (doubleArguments[5] > INT_MAX) || (doubleArguments[5] < INT_MIN)))
|| (numArgs >= 7 && (!std::isfinite(doubleArguments[6]) || (doubleArguments[6] > INT_MAX) || (doubleArguments[6] < 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((numArgs >= 3) ? JSC::toInt32(doubleArguments[2]) : 1);
t.setHour(JSC::toInt32(doubleArguments[3]));
t.setMinute(JSC::toInt32(doubleArguments[4]));
t.setSecond(JSC::toInt32(doubleArguments[5]));
t.setIsDST(-1);
double ms = (numArgs >= 7) ? doubleArguments[6] : 0;
return gregorianDateTimeToMS(vm, t, ms, 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 = NORMAL_OR_DETERMINISTIC_FUNCTION(jsCurrentTime(), deterministicCurrentTime(globalObject));
else if (numArgs == 1) {
if (args.at(0).inherits(vm, DateInstance::info()))
value = asDateInstance(args.at(0))->internalNumber();
else {
JSValue primitive = args.at(0).toPrimitive(exec);
RETURN_IF_EXCEPTION(scope, nullptr);
if (primitive.isString())
value = parseDate(vm, asString(primitive)->value(exec));
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, asInternalFunction(exec->jsCallee())->globalObject(), exec->newTarget(), args));
}
ConstructType DateConstructor::getConstructData(JSCell*, ConstructData& constructData)
{
constructData.native.function = constructWithDateConstructor;
return ConstructType::Host;
}
// ECMA 15.9.2
static EncodedJSValue JSC_HOST_CALL callDate(ExecState* exec)
{
VM& vm = exec->vm();
GregorianDateTime ts;
msToGregorianDateTime(vm, currentTimeMS(), WTF::LocalTime, ts);
return JSValue::encode(jsNontrivialString(&vm, formatDateTime(ts, DateTimeFormatDateAndTime, false)));
}
CallType DateConstructor::getCallData(JSCell*, CallData& callData)
{
callData.native.function = callDate;
return CallType::Host;
}
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());
return JSValue::encode(jsNumber(parseDate(vm, dateStr)));
}
EncodedJSValue JSC_HOST_CALL dateNow(ExecState* exec)
{
#if !ENABLE(WEB_REPLAY)
UNUSED_PARAM(exec);
#endif
return JSValue::encode(jsNumber(NORMAL_OR_DETERMINISTIC_FUNCTION(jsCurrentTime(), deterministicCurrentTime(exec->lexicalGlobalObject()))));
}
EncodedJSValue JSC_HOST_CALL dateUTC(ExecState* exec)
{
double ms = millisecondsFromComponents(exec, ArgList(exec), WTF::UTCTime);
return JSValue::encode(jsNumber(timeClip(ms)));
}
} // namespace JSC
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