--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/JavaScriptCore/runtime/MathObject.cpp Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,239 @@
+/*
+ * Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
+ * Copyright (C) 2007, 2008 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 "MathObject.h"
+
+#include "Lookup.h"
+#include "ObjectPrototype.h"
+#include "Operations.h"
+#include <time.h>
+#include <wtf/Assertions.h>
+#include <wtf/MathExtras.h>
+#include <wtf/RandomNumber.h>
+#include <wtf/RandomNumberSeed.h>
+
+namespace JSC {
+
+ASSERT_CLASS_FITS_IN_CELL(MathObject);
+
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncAbs(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncACos(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncASin(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncATan(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncATan2(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncCeil(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncCos(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncExp(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncFloor(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncLog(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncMax(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncMin(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncPow(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncRandom(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncRound(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncSin(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncSqrt(ExecState*);
+static EncodedJSValue JSC_HOST_CALL mathProtoFuncTan(ExecState*);
+
+}
+
+#include "MathObject.lut.h"
+
+namespace JSC {
+
+// ------------------------------ MathObject --------------------------------
+
+const ClassInfo MathObject::info = { "Math", 0, 0, ExecState::mathTable };
+
+/* Source for MathObject.lut.h
+@begin mathTable
+ abs mathProtoFuncAbs DontEnum|Function 1
+ acos mathProtoFuncACos DontEnum|Function 1
+ asin mathProtoFuncASin DontEnum|Function 1
+ atan mathProtoFuncATan DontEnum|Function 1
+ atan2 mathProtoFuncATan2 DontEnum|Function 2
+ ceil mathProtoFuncCeil DontEnum|Function 1
+ cos mathProtoFuncCos DontEnum|Function 1
+ exp mathProtoFuncExp DontEnum|Function 1
+ floor mathProtoFuncFloor DontEnum|Function 1
+ log mathProtoFuncLog DontEnum|Function 1
+ max mathProtoFuncMax DontEnum|Function 2
+ min mathProtoFuncMin DontEnum|Function 2
+ pow mathProtoFuncPow DontEnum|Function 2
+ random mathProtoFuncRandom DontEnum|Function 0
+ round mathProtoFuncRound DontEnum|Function 1
+ sin mathProtoFuncSin DontEnum|Function 1
+ sqrt mathProtoFuncSqrt DontEnum|Function 1
+ tan mathProtoFuncTan DontEnum|Function 1
+@end
+*/
+
+MathObject::MathObject(ExecState* exec, JSGlobalObject* globalObject, NonNullPassRefPtr<Structure> structure)
+ : JSObjectWithGlobalObject(globalObject, structure)
+{
+ putDirectWithoutTransition(Identifier(exec, "E"), jsNumber(exec, exp(1.0)), DontDelete | DontEnum | ReadOnly);
+ putDirectWithoutTransition(Identifier(exec, "LN2"), jsNumber(exec, log(2.0)), DontDelete | DontEnum | ReadOnly);
+ putDirectWithoutTransition(Identifier(exec, "LN10"), jsNumber(exec, log(10.0)), DontDelete | DontEnum | ReadOnly);
+ putDirectWithoutTransition(Identifier(exec, "LOG2E"), jsNumber(exec, 1.0 / log(2.0)), DontDelete | DontEnum | ReadOnly);
+ putDirectWithoutTransition(Identifier(exec, "LOG10E"), jsNumber(exec, 1.0 / log(10.0)), DontDelete | DontEnum | ReadOnly);
+ putDirectWithoutTransition(Identifier(exec, "PI"), jsNumber(exec, piDouble), DontDelete | DontEnum | ReadOnly);
+ putDirectWithoutTransition(Identifier(exec, "SQRT1_2"), jsNumber(exec, sqrt(0.5)), DontDelete | DontEnum | ReadOnly);
+ putDirectWithoutTransition(Identifier(exec, "SQRT2"), jsNumber(exec, sqrt(2.0)), DontDelete | DontEnum | ReadOnly);
+}
+
+// ECMA 15.8
+
+bool MathObject::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot &slot)
+{
+ return getStaticFunctionSlot<JSObject>(exec, ExecState::mathTable(exec), this, propertyName, slot);
+}
+
+bool MathObject::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
+{
+ return getStaticFunctionDescriptor<JSObject>(exec, ExecState::mathTable(exec), this, propertyName, descriptor);
+}
+
+// ------------------------------ Functions --------------------------------
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncAbs(ExecState* exec)
+{
+ return JSValue::encode(jsNumber(exec, fabs(exec->argument(0).toNumber(exec))));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncACos(ExecState* exec)
+{
+ return JSValue::encode(jsDoubleNumber(exec, acos(exec->argument(0).toNumber(exec))));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncASin(ExecState* exec)
+{
+ return JSValue::encode(jsDoubleNumber(exec, asin(exec->argument(0).toNumber(exec))));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncATan(ExecState* exec)
+{
+ return JSValue::encode(jsDoubleNumber(exec, atan(exec->argument(0).toNumber(exec))));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncATan2(ExecState* exec)
+{
+ return JSValue::encode(jsDoubleNumber(exec, atan2(exec->argument(0).toNumber(exec), exec->argument(1).toNumber(exec))));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncCeil(ExecState* exec)
+{
+ return JSValue::encode(jsNumber(exec, ceil(exec->argument(0).toNumber(exec))));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncCos(ExecState* exec)
+{
+ return JSValue::encode(jsDoubleNumber(exec, cos(exec->argument(0).toNumber(exec))));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncExp(ExecState* exec)
+{
+ return JSValue::encode(jsDoubleNumber(exec, exp(exec->argument(0).toNumber(exec))));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncFloor(ExecState* exec)
+{
+ return JSValue::encode(jsNumber(exec, floor(exec->argument(0).toNumber(exec))));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncLog(ExecState* exec)
+{
+ return JSValue::encode(jsDoubleNumber(exec, log(exec->argument(0).toNumber(exec))));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncMax(ExecState* exec)
+{
+ unsigned argsCount = exec->argumentCount();
+ double result = -Inf;
+ for (unsigned k = 0; k < argsCount; ++k) {
+ double val = exec->argument(k).toNumber(exec);
+ if (isnan(val)) {
+ result = NaN;
+ break;
+ }
+ if (val > result || (val == 0 && result == 0 && !signbit(val)))
+ result = val;
+ }
+ return JSValue::encode(jsNumber(exec, result));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncMin(ExecState* exec)
+{
+ unsigned argsCount = exec->argumentCount();
+ double result = +Inf;
+ for (unsigned k = 0; k < argsCount; ++k) {
+ double val = exec->argument(k).toNumber(exec);
+ if (isnan(val)) {
+ result = NaN;
+ break;
+ }
+ if (val < result || (val == 0 && result == 0 && signbit(val)))
+ result = val;
+ }
+ return JSValue::encode(jsNumber(exec, result));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncPow(ExecState* exec)
+{
+ // ECMA 15.8.2.1.13
+
+ double arg = exec->argument(0).toNumber(exec);
+ double arg2 = exec->argument(1).toNumber(exec);
+
+ if (isnan(arg2))
+ return JSValue::encode(jsNaN(exec));
+ if (isinf(arg2) && fabs(arg) == 1)
+ return JSValue::encode(jsNaN(exec));
+ return JSValue::encode(jsNumber(exec, pow(arg, arg2)));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncRandom(ExecState* exec)
+{
+ return JSValue::encode(jsDoubleNumber(exec, exec->globalData().weakRandom.get()));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncRound(ExecState* exec)
+{
+ double arg = exec->argument(0).toNumber(exec);
+ double integer = ceil(arg);
+ return JSValue::encode(jsNumber(exec, integer - (integer - arg > 0.5)));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncSin(ExecState* exec)
+{
+ return JSValue::encode(exec->globalData().cachedSin(exec, exec->argument(0).toNumber(exec)));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncSqrt(ExecState* exec)
+{
+ return JSValue::encode(jsDoubleNumber(exec, sqrt(exec->argument(0).toNumber(exec))));
+}
+
+EncodedJSValue JSC_HOST_CALL mathProtoFuncTan(ExecState* exec)
+{
+ return JSValue::encode(jsDoubleNumber(exec, tan(exec->argument(0).toNumber(exec))));
+}
+
+} // namespace JSC