static bool extractSourceInformationFromException(JSC::ExecState* exec, JSObject* exceptionObject, int* lineNumber, int* columnNumber, String* sourceURL)
{
VM& vm = exec->vm();
auto scope = DECLARE_CATCH_SCOPE(vm);
// FIXME: <http://webkit.org/b/115087> Web Inspector: Should not need to evaluate JavaScript handling exceptions
JSValue lineValue = exceptionObject->getDirect(vm, Identifier::fromString(exec, "line"));
JSValue columnValue = exceptionObject->getDirect(vm, Identifier::fromString(exec, "column"));
JSValue sourceURLValue = exceptionObject->getDirect(vm, Identifier::fromString(exec, "sourceURL"));
bool result = false;
if (lineValue && lineValue.isNumber()
&& sourceURLValue && sourceURLValue.isString()) {
*lineNumber = int(lineValue.toNumber(exec));
*columnNumber = columnValue && columnValue.isNumber() ? int(columnValue.toNumber(exec)) : 0;
*sourceURL = sourceURLValue.toWTFString(exec);
result = true;
} else if (ErrorInstance* error = jsDynamicCast<ErrorInstance*>(vm, exceptionObject)) {
unsigned unsignedLine;
unsigned unsignedColumn;
result = getLineColumnAndSource(error->stackTrace(), unsignedLine, unsignedColumn, *sourceURL);
*lineNumber = static_cast<int>(unsignedLine);
*columnNumber = static_cast<int>(unsignedColumn);
}
if (sourceURL->isEmpty())
*sourceURL = "undefined"_s;
scope.clearException();
return result;
}
PassRefPtr<ScriptCallStack> createScriptCallStackFromException(JSC::ExecState* exec, JSC::JSValue& exception, size_t maxStackSize)
{
Vector<ScriptCallFrame> frames;
RefCountedArray<StackFrame> stackTrace = exec->vm().exceptionStack();
for (size_t i = 0; i < stackTrace.size() && i < maxStackSize; i++) {
if (!stackTrace[i].callee && frames.size())
break;
unsigned line;
unsigned column;
stackTrace[i].computeLineAndColumn(line, column);
String functionName = stackTrace[i].friendlyFunctionName(exec);
frames.append(ScriptCallFrame(functionName, stackTrace[i].sourceURL, line, column));
}
// FIXME: <http://webkit.org/b/115087> Web Inspector: WebCore::reportException should not evaluate JavaScript handling exceptions
// Fallback to getting at least the line and sourceURL from the exception if it has values and the exceptionStack doesn't.
if (frames.size() > 0) {
const ScriptCallFrame& firstCallFrame = frames.first();
JSObject* exceptionObject = exception.toObject(exec);
if (exception.isObject() && firstCallFrame.sourceURL().isEmpty()) {
JSValue lineValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "line"));
int lineNumber = lineValue && lineValue.isNumber() ? int(lineValue.toNumber(exec)) : 0;
JSValue columnValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "column"));
int columnNumber = columnValue && columnValue.isNumber() ? int(columnValue.toNumber(exec)) : 0;
JSValue sourceURLValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "sourceURL"));
String exceptionSourceURL = sourceURLValue && sourceURLValue.isString() ? sourceURLValue.toString(exec)->value(exec) : ASCIILiteral("undefined");
frames[0] = ScriptCallFrame(firstCallFrame.functionName(), exceptionSourceURL, lineNumber, columnNumber);
}
}
return ScriptCallStack::create(frames);
}
static RefPtr<IDBKey> createIDBKeyFromValue(ExecState& exec, JSValue value, Vector<JSArray*>& stack)
{
VM& vm = exec.vm();
if (value.isNumber() && !std::isnan(value.toNumber(&exec)))
return IDBKey::createNumber(value.toNumber(&exec));
if (value.isString())
return IDBKey::createString(asString(value)->value(&exec));
if (value.inherits<DateInstance>(vm)) {
auto dateValue = valueToDate(exec, value);
if (!std::isnan(dateValue))
return IDBKey::createDate(dateValue);
}
if (value.isObject()) {
JSObject* object = asObject(value);
if (auto* array = jsDynamicCast<JSArray*>(vm, object)) {
size_t length = array->length();
if (stack.contains(array))
return nullptr;
if (stack.size() >= maximumDepth)
return nullptr;
stack.append(array);
Vector<RefPtr<IDBKey>> subkeys;
for (size_t i = 0; i < length; i++) {
JSValue item = array->getIndex(&exec, i);
RefPtr<IDBKey> subkey = createIDBKeyFromValue(exec, item, stack);
if (!subkey)
subkeys.append(IDBKey::createInvalid());
else
subkeys.append(subkey);
}
stack.removeLast();
return IDBKey::createArray(subkeys);
}
if (auto* arrayBuffer = jsDynamicCast<JSArrayBuffer*>(vm, value))
return IDBKey::createBinary(*arrayBuffer);
if (auto* arrayBufferView = jsDynamicCast<JSArrayBufferView*>(vm, value))
return IDBKey::createBinary(*arrayBufferView);
}
return nullptr;
}
void reportException(ExecState* exec, JSValue exception, CachedScript* cachedScript)
{
if (isTerminatedExecutionException(exception))
return;
Interpreter::ErrorHandlingMode mode(exec);
RefPtr<ScriptCallStack> callStack(createScriptCallStackFromException(exec, exception, ScriptCallStack::maxCallStackSizeToCapture));
exec->clearException();
exec->clearSupplementaryExceptionInfo();
JSDOMGlobalObject* globalObject = jsCast<JSDOMGlobalObject*>(exec->lexicalGlobalObject());
if (JSDOMWindow* window = jsDynamicCast<JSDOMWindow*>(globalObject)) {
if (!window->impl()->isCurrentlyDisplayedInFrame())
return;
}
int lineNumber = 0;
int columnNumber = 0;
String exceptionSourceURL;
if (callStack->size()) {
const ScriptCallFrame& frame = callStack->at(0);
lineNumber = frame.lineNumber();
columnNumber = frame.columnNumber();
exceptionSourceURL = frame.sourceURL();
} else {
// There may not be an exceptionStack for a <script> SyntaxError. Fallback to getting at least the line and sourceURL from the exception.
JSObject* exceptionObject = exception.toObject(exec);
JSValue lineValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "line"));
lineNumber = lineValue && lineValue.isNumber() ? int(lineValue.toNumber(exec)) : 0;
JSValue columnValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "column"));
columnNumber = columnValue && columnValue.isNumber() ? int(columnValue.toNumber(exec)) : 0;
JSValue sourceURLValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "sourceURL"));
exceptionSourceURL = sourceURLValue && sourceURLValue.isString() ? sourceURLValue.toString(exec)->value(exec) : ASCIILiteral("undefined");
}
String errorMessage;
if (ExceptionBase* exceptionBase = toExceptionBase(exception))
errorMessage = exceptionBase->message() + ": " + exceptionBase->description();
else {
// FIXME: <http://webkit.org/b/115087> Web Inspector: WebCore::reportException should not evaluate JavaScript handling exceptions
// If this is a custon exception object, call toString on it to try and get a nice string representation for the exception.
errorMessage = exception.toString(exec)->value(exec);
exec->clearException();
exec->clearSupplementaryExceptionInfo();
}
ScriptExecutionContext* scriptExecutionContext = globalObject->scriptExecutionContext();
scriptExecutionContext->reportException(errorMessage, lineNumber, columnNumber, exceptionSourceURL, callStack->size() ? callStack : 0, cachedScript);
}
static inline T toSmallerUInt(ExecState* exec, JSValue value, IntegerConversionConfiguration configuration)
{
typedef IntTypeLimits<T> LimitsTrait;
// Fast path if the value is already a 32-bit unsigned integer in the right range.
if (value.isUInt32()) {
uint32_t d = value.asUInt32();
if (d <= LimitsTrait::maxValue)
return static_cast<T>(d);
if (configuration == EnforceRange) {
throwTypeError(exec);
return 0;
}
return static_cast<T>(d);
}
double x = value.toNumber(exec);
if (exec->hadException())
return 0;
if (configuration == EnforceRange)
return enforceRange(exec, x, 0, LimitsTrait::maxValue);
if (std::isnan(x) || std::isinf(x) || !x)
return 0;
x = x < 0 ? -floor(fabs(x)) : floor(fabs(x));
return static_cast<T>(fmod(x, LimitsTrait::numberOfValues));
}
// http://www.w3.org/TR/WebIDL/#es-byte
int8_t toInt8(ExecState* exec, JSValue value, IntegerConversionConfiguration configuration)
{
// Fast path if the value is already a 32-bit signed integer in the right range.
if (value.isInt32()) {
int32_t d = value.asInt32();
if (d >= kMinInt8 && d <= kMaxInt8)
return static_cast<int8_t>(d);
if (configuration == EnforceRange) {
throwTypeError(exec);
return 0;
}
d %= 256;
return static_cast<int8_t>(d > kMaxInt8 ? d - 256 : d);
}
double x = value.toNumber(exec);
if (exec->hadException())
return 0;
if (configuration == EnforceRange)
return enforceRange(exec, x, kMinInt8, kMaxInt8);
if (std::isnan(x) || std::isinf(x) || !x)
return 0;
x = x < 0 ? -floor(fabs(x)) : floor(fabs(x));
x = fmod(x, 256); // 2^8.
return static_cast<int8_t>(x > kMaxInt8 ? x - 256 : x);
}
static EncodedJSValue JSC_HOST_CALL IntlDateTimeFormatFuncFormatDateTime(ExecState* state)
{
// 12.3.4 DateTime Format Functions (ECMA-402 2.0)
// 1. Let dtf be the this value.
// 2. Assert: Type(dtf) is Object and dtf has an [[initializedDateTimeFormat]] internal slot whose value is true.
IntlDateTimeFormat* format = jsCast<IntlDateTimeFormat*>(state->thisValue());
JSValue date = state->argument(0);
double value;
// 3. If date is not provided or is undefined, then
if (date.isUndefined()) {
// a. Let x be %Date_now%().
value = JSValue::decode(dateNow(state)).toNumber(state);
} else {
// 4. Else
// a. Let x be ToNumber(date).
value = date.toNumber(state);
// b. ReturnIfAbrupt(x).
if (state->hadException())
return JSValue::encode(jsUndefined());
}
// 5. Return FormatDateTime(dtf, x).
return JSValue::encode(format->format(*state, value));
}
static inline double normalizeHighWaterMark(ExecState& exec, JSObject& strategy)
{
JSValue jsHighWaterMark = getPropertyFromObject(exec, strategy, "highWaterMark");
if (exec.hadException())
return 0;
if (jsHighWaterMark.isUndefined())
return 1;
double highWaterMark = jsHighWaterMark.toNumber(&exec);
if (exec.hadException())
return 0;
if (std::isnan(highWaterMark)) {
throwVMError(&exec, createTypeError(&exec, ASCIILiteral("Value is NaN")));
return 0;
}
if (highWaterMark < 0) {
throwVMError(&exec, createRangeError(&exec, ASCIILiteral("Not a positive value")));
return 0;
}
return highWaterMark;
}
// ECMA 15.9.3
JSObject* constructDate(ExecState* exec, JSGlobalObject* globalObject, JSValue newTarget, 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
value = millisecondsFromComponents(exec, args, WTF::LocalTime);
Structure* dateStructure = InternalFunction::createSubclassStructure(exec, newTarget, globalObject->dateStructure());
return DateInstance::create(vm, dateStructure, value);
}
double JSObject::toNumber(ExecState *exec) const
{
JSValue *prim = toPrimitive(exec,NumberType);
if (exec->hadException()) // should be picked up soon in nodes.cpp
return 0.0;
return prim->toNumber(exec);
}
JSValue JSWebSocket::close(ExecState* exec)
{
// FIXME: We should implement [Clamp] for IDL binding code generator, and
// remove this custom method.
WebSocket* webSocket = static_cast<WebSocket*>(impl());
size_t argumentCount = exec->argumentCount();
int code = WebSocketChannel::CloseEventCodeNotSpecified;
String reason = "";
if (argumentCount >= 1) {
JSValue v = exec->argument(0);
double x = v.toNumber(exec);
double maxValue = static_cast<double>(std::numeric_limits<uint16_t>::max());
double minValue = static_cast<double>(std::numeric_limits<uint16_t>::min());
if (isnan(x))
x = 0.0;
else
x = clampTo(x, minValue, maxValue);
code = clampToInteger(x);
if (argumentCount >= 2) {
reason = ustringToString(exec->argument(1).toString(exec)->value(exec));
if (exec->hadException()) {
setDOMException(exec, SYNTAX_ERR);
return jsUndefined();
}
}
}
ExceptionCode ec = 0;
webSocket->close(code, reason, ec);
setDOMException(exec, ec);
return jsUndefined();
}
// http://www.w3.org/TR/WebIDL/#es-octet
uint8_t toUInt8(ExecState* exec, JSValue value, IntegerConversionConfiguration configuration)
{
// Fast path if the value is already a 32-bit unsigned integer in the right range.
if (value.isUInt32()) {
uint32_t d = value.asUInt32();
if (d <= kMaxUInt8)
return static_cast<uint8_t>(d);
if (configuration == EnforceRange) {
throwTypeError(exec);
return 0;
}
return static_cast<uint8_t>(d % 256); // 2^8.
}
double x = value.toNumber(exec);
if (exec->hadException())
return 0;
if (configuration == EnforceRange)
return enforceRange(exec, x, 0, kMaxUInt8);
if (std::isnan(x) || std::isinf(x) || !x)
return 0;
x = x < 0 ? -floor(fabs(x)) : floor(fabs(x));
return static_cast<uint8_t>(fmod(x, 256)); // 2^8.
}
double JSObject::toNumber(ExecState* exec) const
{
JSValue primitive = toPrimitive(exec, PreferNumber);
if (exec->hadException()) // should be picked up soon in Nodes.cpp
return 0.0;
return primitive.toNumber(exec);
}
void setJSHTMLMeterElementOptimum(ExecState* exec, JSObject* thisObject, JSValue value)
{
JSHTMLMeterElement* castedThis = static_cast<JSHTMLMeterElement*>(thisObject);
HTMLMeterElement* imp = static_cast<HTMLMeterElement*>(castedThis->impl());
ExceptionCode ec = 0;
imp->setOptimum(value.toNumber(exec), ec);
setDOMException(exec, ec);
}
int main(int argc, char **argv)
{
// expecting a filename
if (argc < 2) {
fprintf(stderr, "You have to specify at least one filename\n");
return -1;
}
bool ret = true;
{
JSLock lock;
// create interpreter w/ global object
Global* global = new Global();
RefPtr<Interpreter> interp = new Interpreter(global);
ExecState *exec = interp->globalExec();
MyObject *myObject = (MyObject *)_NPN_CreateObject (NPP(0), myFunctionPtrs);
// FIXME
// global->put(exec, Identifier("myInterface"), Instance::createRuntimeObject(Instance::CLanguage, (void *)myObject));
for (int i = 1; i < argc; i++) {
const char *code = readJavaScriptFromFile(argv[i]);
if (code) {
// run
Completion comp(interp->evaluate("", 0, code));
if (comp.complType() == Throw) {
JSValue *exVal = comp.value();
char *msg = exVal->toString(exec).ascii();
int lineno = -1;
if (exVal->type() == ObjectType) {
JSValue *lineVal = exVal->getObject()->get(exec, Identifier("line"));
if (lineVal->type() == NumberType)
lineno = int(lineVal->toNumber(exec));
}
if (lineno != -1)
fprintf(stderr,"Exception, line %d: %s\n",lineno,msg);
else
fprintf(stderr,"Exception: %s\n",msg);
ret = false;
}
else if (comp.complType() == ReturnValue) {
char *msg = comp.value()->toString(interp->globalExec()).ascii();
fprintf(stderr,"Return value: %s\n",msg);
}
}
}
_NPN_ReleaseObject ((NPObject *)myObject);
} // end block, so that Interpreter and global get deleted
return ret ? 0 : 3;
}
// http://www.w3.org/TR/WebIDL/#es-unsigned-long
uint32_t toUInt32EnforceRange(ExecState* exec, JSValue value)
{
if (value.isUInt32())
return value.asUInt32();
double x = value.toNumber(exec);
if (exec->hadException())
return 0;
return enforceRange(exec, x, 0, kMaxUInt32);
}
// 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 = jsCurrentTime();
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])
|| !std::isfinite(doubleArguments[1])
|| (numArgs >= 3 && !std::isfinite(doubleArguments[2]))
|| (numArgs >= 4 && !std::isfinite(doubleArguments[3]))
|| (numArgs >= 5 && !std::isfinite(doubleArguments[4]))
|| (numArgs >= 6 && !std::isfinite(doubleArguments[5]))
|| (numArgs >= 7 && !std::isfinite(doubleArguments[6])))
value = QNaN;
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, false);
}
}
return DateInstance::create(vm, globalObject->dateStructure(), value);
}
JSLR_API bool _cdecl JSTryConvertToNumber(JSContextRef ctx, JSValueRef value, double* result)
{
ExecState* exec = toJS(ctx);
JSValue jsValue = toJS(exec, value);
if (jsValue.isNumber())
{
*result = jsValue.toNumber(exec);
return true;
}
return false;
}
// ECMA 15.9.3
JSObject* constructDate(ExecState* exec, JSGlobalObject* globalObject, const ArgList& args)
{
int numArgs = args.size();
double value;
if (numArgs == 0) // new Date() ECMA 15.9.3.3
value = jsCurrentTime();
else if (numArgs == 1) {
if (args.at(0).inherits(&DateInstance::s_info))
value = asDateInstance(args.at(0))->internalNumber();
else {
JSValue primitive = args.at(0).toPrimitive(exec);
if (primitive.isString())
value = parseDate(exec, 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 (isnan(doubleArguments[0])
|| isnan(doubleArguments[1])
|| (numArgs >= 3 && isnan(doubleArguments[2]))
|| (numArgs >= 4 && isnan(doubleArguments[3]))
|| (numArgs >= 5 && isnan(doubleArguments[4]))
|| (numArgs >= 6 && isnan(doubleArguments[5]))
|| (numArgs >= 7 && isnan(doubleArguments[6])))
value = NaN;
else {
GregorianDateTime t;
int year = JSC::toInt32(doubleArguments[0]);
t.year = (year >= 0 && year <= 99) ? year : year - 1900;
t.month = JSC::toInt32(doubleArguments[1]);
t.monthDay = (numArgs >= 3) ? JSC::toInt32(doubleArguments[2]) : 1;
t.hour = JSC::toInt32(doubleArguments[3]);
t.minute = JSC::toInt32(doubleArguments[4]);
t.second = JSC::toInt32(doubleArguments[5]);
t.isDST = -1;
double ms = (numArgs >= 7) ? doubleArguments[6] : 0;
value = gregorianDateTimeToMS(exec, t, ms, false);
}
}
return new (exec) DateInstance(exec, globalObject->dateStructure(), value);
}
static RefPtr<DeviceMotionData::RotationRate> readRotationRateArgument(JSValue value, ExecState& state)
{
if (value.isUndefinedOrNull())
return nullptr;
// Given the above test, this will always yield an object.
JSObject* object = value.toObject(&state);
JSValue alphaValue = object->get(&state, Identifier::fromString(&state, "alpha"));
if (state.hadException())
return nullptr;
bool canProvideAlpha = !alphaValue.isUndefinedOrNull();
double alpha = alphaValue.toNumber(&state);
if (state.hadException())
return nullptr;
JSValue betaValue = object->get(&state, Identifier::fromString(&state, "beta"));
if (state.hadException())
return nullptr;
bool canProvideBeta = !betaValue.isUndefinedOrNull();
double beta = betaValue.toNumber(&state);
if (state.hadException())
return nullptr;
JSValue gammaValue = object->get(&state, Identifier::fromString(&state, "gamma"));
if (state.hadException())
return nullptr;
bool canProvideGamma = !gammaValue.isUndefinedOrNull();
double gamma = gammaValue.toNumber(&state);
if (state.hadException())
return nullptr;
if (!canProvideAlpha && !canProvideBeta && !canProvideGamma)
return nullptr;
return DeviceMotionData::RotationRate::create(canProvideAlpha, alpha, canProvideBeta, beta, canProvideGamma, gamma);
}
static RefPtr<DeviceMotionData::Acceleration> readAccelerationArgument(JSValue value, ExecState& state)
{
if (value.isUndefinedOrNull())
return nullptr;
// Given the above test, this will always yield an object.
JSObject* object = value.toObject(&state);
JSValue xValue = object->get(&state, Identifier::fromString(&state, "x"));
if (state.hadException())
return nullptr;
bool canProvideX = !xValue.isUndefinedOrNull();
double x = xValue.toNumber(&state);
if (state.hadException())
return nullptr;
JSValue yValue = object->get(&state, Identifier::fromString(&state, "y"));
if (state.hadException())
return nullptr;
bool canProvideY = !yValue.isUndefinedOrNull();
double y = yValue.toNumber(&state);
if (state.hadException())
return nullptr;
JSValue zValue = object->get(&state, Identifier::fromString(&state, "z"));
if (state.hadException())
return nullptr;
bool canProvideZ = !zValue.isUndefinedOrNull();
double z = zValue.toNumber(&state);
if (state.hadException())
return nullptr;
if (!canProvideX && !canProvideY && !canProvideZ)
return nullptr;
return DeviceMotionData::Acceleration::create(canProvideX, x, canProvideY, y, canProvideZ, z);
}
static RefPtr<IDBKey> createIDBKeyFromValue(ExecState* exec, JSValue value, Vector<JSArray*>& stack)
{
if (value.isNumber() && !std::isnan(value.toNumber(exec)))
return IDBKey::createNumber(value.toNumber(exec));
if (value.isString())
return IDBKey::createString(value.toString(exec)->value(exec));
if (value.inherits(DateInstance::info()) && !std::isnan(valueToDate(exec, value)))
return IDBKey::createDate(valueToDate(exec, value));
if (value.isObject()) {
JSObject* object = asObject(value);
if (isJSArray(object) || object->inherits(JSArray::info())) {
JSArray* array = asArray(object);
size_t length = array->length();
if (stack.contains(array))
return nullptr;
if (stack.size() >= maximumDepth)
return nullptr;
stack.append(array);
Vector<RefPtr<IDBKey>> subkeys;
for (size_t i = 0; i < length; i++) {
JSValue item = array->getIndex(exec, i);
RefPtr<IDBKey> subkey = createIDBKeyFromValue(exec, item, stack);
if (!subkey)
subkeys.append(IDBKey::createInvalid());
else
subkeys.append(subkey);
}
stack.removeLast();
return IDBKey::createArray(subkeys);
}
}
return nullptr;
}
void setJSPannerNodeConeOuterGain(ExecState* exec, EncodedJSValue thisValue, EncodedJSValue encodedValue)
{
JSValue value = JSValue::decode(encodedValue);
UNUSED_PARAM(exec);
JSPannerNode* castedThis = jsDynamicCast<JSPannerNode*>(JSValue::decode(thisValue));
if (!castedThis) {
throwVMTypeError(exec);
return;
}
PannerNode& impl = castedThis->impl();
double nativeValue(value.toNumber(exec));
if (exec->hadException())
return;
impl.setConeOuterGain(nativeValue);
}
EXPORT
double JSValueToNumber(JSContextRef ctx, JSValueRef value, JSValueRef* exception)
{
JSLock lock;
JSValue* jsValue = toJS(value);
ExecState* exec = toJS(ctx);
double number = jsValue->toNumber(exec);
if (exec->hadException()) {
if (exception)
*exception = toRef(exec->exception());
exec->clearException();
number = NaN;
}
return number;
}
// ECMA 15.4.5.1
void JSArray::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot)
{
JSArray* thisObject = jsCast<JSArray*>(cell);
if (propertyName == exec->propertyNames().length) {
unsigned newLength = value.toUInt32(exec);
if (value.toNumber(exec) != static_cast<double>(newLength)) {
exec->vm().throwException(exec, createRangeError(exec, ASCIILiteral("Invalid array length")));
return;
}
thisObject->setLength(exec, newLength, slot.isStrictMode());
return;
}
JSObject::put(thisObject, exec, propertyName, value, slot);
}
double JSValueToNumber(JSContextRef ctx, JSValueRef value, JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return PNaN;
}
ExecState* exec = toJS(ctx);
JSLockHolder locker(exec);
JSValue jsValue = toJS(exec, value);
double number = jsValue.toNumber(exec);
if (handleExceptionIfNeeded(exec, exception) == ExceptionStatus::DidThrow)
number = PNaN;
return number;
}
double JSValueToNumber(JSContextRef ctx, JSValueRef value, JSValueRef* exception)
{
ExecState* exec = toJS(ctx);
APIEntryShim entryShim(exec);
JSValue jsValue = toJS(exec, value);
double number = jsValue.toNumber(exec);
if (exec->hadException()) {
if (exception)
*exception = toRef(exec, exec->exception());
exec->clearException();
number = NaN;
}
return number;
}
void JSHTMLOptionsCollection::setLength(ExecState& state, JSValue value)
{
ExceptionCode ec = 0;
unsigned newLength = 0;
double lengthValue = value.toNumber(&state);
if (!std::isnan(lengthValue) && !std::isinf(lengthValue)) {
if (lengthValue < 0.0)
ec = INDEX_SIZE_ERR;
else if (lengthValue > static_cast<double>(UINT_MAX))
newLength = UINT_MAX;
else
newLength = static_cast<unsigned>(lengthValue);
}
if (!ec)
wrapped().setLength(newLength, ec);
setDOMException(&state, ec);
}
// ECMA 15.9.3
JSObject* constructDate(ExecState* exec, const ArgList& args)
{
int numArgs = args.size();
double value;
if (numArgs == 0) // new Date() ECMA 15.9.3.3
value = getCurrentUTCTime();
else if (numArgs == 1) {
if (args.at(exec, 0)->isObject(&DateInstance::info))
value = asDateInstance(args.at(exec, 0))->internalNumber();
else {
JSValue* primitive = args.at(exec, 0)->toPrimitive(exec);
if (primitive->isString())
value = parseDate(primitive->getString());
else
value = primitive->toNumber(exec);
}
} else {
if (isnan(args.at(exec, 0)->toNumber(exec))
|| isnan(args.at(exec, 1)->toNumber(exec))
|| (numArgs >= 3 && isnan(args.at(exec, 2)->toNumber(exec)))
|| (numArgs >= 4 && isnan(args.at(exec, 3)->toNumber(exec)))
|| (numArgs >= 5 && isnan(args.at(exec, 4)->toNumber(exec)))
|| (numArgs >= 6 && isnan(args.at(exec, 5)->toNumber(exec)))
|| (numArgs >= 7 && isnan(args.at(exec, 6)->toNumber(exec))))
value = NaN;
else {
GregorianDateTime t;
int year = args.at(exec, 0)->toInt32(exec);
t.year = (year >= 0 && year <= 99) ? year : year - 1900;
t.month = args.at(exec, 1)->toInt32(exec);
t.monthDay = (numArgs >= 3) ? args.at(exec, 2)->toInt32(exec) : 1;
t.hour = args.at(exec, 3)->toInt32(exec);
t.minute = args.at(exec, 4)->toInt32(exec);
t.second = args.at(exec, 5)->toInt32(exec);
t.isDST = -1;
double ms = (numArgs >= 7) ? args.at(exec, 6)->toNumber(exec) : 0;
value = gregorianDateTimeToMS(t, ms, false);
}
}
DateInstance* result = new (exec) DateInstance(exec->lexicalGlobalObject()->dateStructure());
result->setInternalValue(jsNumber(exec, timeClip(value)));
return result;
}
// http://www.w3.org/TR/WebIDL/#es-unsigned-long-long
uint64_t toUInt64(ExecState* exec, JSValue value, IntegerConversionConfiguration configuration)
{
if (value.isUInt32())
return value.asUInt32();
double x = value.toNumber(exec);
if (exec->hadException())
return 0;
if (configuration == EnforceRange)
return enforceRange(exec, x, 0, kJSMaxInteger);
// Map NaNs and +/-Infinity to 0; convert finite values modulo 2^64.
unsigned long long n;
doubleToInteger(x, n);
return n;
}