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Diffstat (limited to 'Source/JavaScriptCore/runtime/DateConstructor.cpp')
-rw-r--r-- | Source/JavaScriptCore/runtime/DateConstructor.cpp | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/runtime/DateConstructor.cpp b/Source/JavaScriptCore/runtime/DateConstructor.cpp new file mode 100644 index 000000000..ee656a309 --- /dev/null +++ b/Source/JavaScriptCore/runtime/DateConstructor.cpp @@ -0,0 +1,245 @@ +/* + * Copyright (C) 1999-2000 Harri Porten (porten@kde.org) + * Copyright (C) 2004, 2005, 2006, 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 "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, datePrototype->classInfo()->className); + putDirectWithoutTransition(vm, vm.propertyNames->prototype, datePrototype, DontEnum | DontDelete | ReadOnly); + putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(7), ReadOnly | DontEnum | DontDelete); +} + +bool DateConstructor::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot &slot) +{ + return getStaticFunctionSlot<InternalFunction>(exec, dateConstructorTable, jsCast<DateConstructor*>(object), propertyName, slot); +} + +// ECMA 15.9.3 +JSObject* constructDate(ExecState* exec, JSGlobalObject* globalObject, const ArgList& args) +{ + VM& vm = exec->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(DateInstance::info())) + value = asDateInstance(args.at(0))->internalNumber(); + else { + JSValue primitive = args.at(0).toPrimitive(exec); + if (primitive.isString()) + value = parseDate(vm, primitive.getString(exec)); + else + value = primitive.toNumber(exec); + } + } else { + double doubleArguments[7] = { + args.at(0).toNumber(exec), + args.at(1).toNumber(exec), + args.at(2).toNumber(exec), + args.at(3).toNumber(exec), + args.at(4).toNumber(exec), + args.at(5).toNumber(exec), + args.at(6).toNumber(exec) + }; + 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)))) + value = PNaN; + else { + 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; + value = gregorianDateTimeToMS(vm, t, ms, WTF::LocalTime); + } + } + + return DateInstance::create(vm, globalObject->dateStructure(), value); +} + +static EncodedJSValue JSC_HOST_CALL constructWithDateConstructor(ExecState* exec) +{ + ArgList args(exec); + return JSValue::encode(constructDate(exec, asInternalFunction(exec->callee())->globalObject(), args)); +} + +ConstructType DateConstructor::getConstructData(JSCell*, ConstructData& constructData) +{ + constructData.native.function = constructWithDateConstructor; + return ConstructTypeHost; +} + +// 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 CallTypeHost; +} + +EncodedJSValue JSC_HOST_CALL dateParse(ExecState* exec) +{ + return JSValue::encode(jsNumber(parseDate(exec->vm(), exec->argument(0).toString(exec)->value(exec)))); +} + +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 doubleArguments[7] = { + exec->argument(0).toNumber(exec), + exec->argument(1).toNumber(exec), + exec->argument(2).toNumber(exec), + exec->argument(3).toNumber(exec), + exec->argument(4).toNumber(exec), + exec->argument(5).toNumber(exec), + exec->argument(6).toNumber(exec) + }; + int n = exec->argumentCount(); + if ((std::isnan(doubleArguments[0]) || (doubleArguments[0] > INT_MAX) || (doubleArguments[0] < INT_MIN)) + || (std::isnan(doubleArguments[1]) || (doubleArguments[1] > INT_MAX) || (doubleArguments[1] < INT_MIN)) + || (n >= 3 && (std::isnan(doubleArguments[2]) || (doubleArguments[2] > INT_MAX) || (doubleArguments[2] < INT_MIN))) + || (n >= 4 && (std::isnan(doubleArguments[3]) || (doubleArguments[3] > INT_MAX) || (doubleArguments[3] < INT_MIN))) + || (n >= 5 && (std::isnan(doubleArguments[4]) || (doubleArguments[4] > INT_MAX) || (doubleArguments[4] < INT_MIN))) + || (n >= 6 && (std::isnan(doubleArguments[5]) || (doubleArguments[5] > INT_MAX) || (doubleArguments[5] < INT_MIN))) + || (n >= 7 && (std::isnan(doubleArguments[6]) || (doubleArguments[6] > INT_MAX) || (doubleArguments[6] < INT_MIN)))) + return JSValue::encode(jsNaN()); + + 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((n >= 3) ? JSC::toInt32(doubleArguments[2]) : 1); + t.setHour(JSC::toInt32(doubleArguments[3])); + t.setMinute(JSC::toInt32(doubleArguments[4])); + t.setSecond(JSC::toInt32(doubleArguments[5])); + double ms = (n >= 7) ? doubleArguments[6] : 0; + return JSValue::encode(jsNumber(timeClip(gregorianDateTimeToMS(exec->vm(), t, ms, WTF::UTCTime)))); +} + +} // namespace JSC |