webkitgtk-2.10.2webkitgtk-2.10.2

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