static EncodedJSValue JSC_HOST_CALL webAssemblyTableProtoFuncSet(ExecState* exec)
{
VM& vm = exec->vm();
auto throwScope = DECLARE_THROW_SCOPE(vm);
JSWebAssemblyTable* table = getTable(exec, vm, exec->thisValue());
RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
JSValue value = exec->argument(1);
WebAssemblyFunction* wasmFunction;
WebAssemblyWrapperFunction* wasmWrapperFunction;
if (!value.isNull() && !isWebAssemblyHostFunction(vm, value, wasmFunction, wasmWrapperFunction))
return JSValue::encode(throwException(exec, throwScope, createTypeError(exec, "WebAssembly.Table.prototype.set expects the second argument to be null or an instance of WebAssembly.Function"_s)));
uint32_t index = toNonWrappingUint32(exec, exec->argument(0));
RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
if (index >= table->length())
return JSValue::encode(throwException(exec, throwScope, createRangeError(exec, "WebAssembly.Table.prototype.set expects an integer less than the length of the table"_s)));
if (value.isNull())
table->clearFunction(index);
else {
ASSERT(value.isObject() && isWebAssemblyHostFunction(vm, jsCast<JSObject*>(value), wasmFunction, wasmWrapperFunction));
ASSERT(!!wasmFunction || !!wasmWrapperFunction);
if (wasmFunction)
table->setFunction(vm, index, wasmFunction);
else
table->setFunction(vm, index, wasmWrapperFunction);
}
return JSValue::encode(jsUndefined());
}
// ECMA 8.6.2.2
void JSObject::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
{
ASSERT(value);
ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(this));
if (propertyName == exec->propertyNames().underscoreProto) {
// Setting __proto__ to a non-object, non-null value is silently ignored to match Mozilla.
if (!value.isObject() && !value.isNull())
return;
if (!setPrototypeWithCycleCheck(value))
throwError(exec, createError(exec, "cyclic __proto__ value"));
return;
}
// Check if there are any setters or getters in the prototype chain
JSValue prototype;
for (JSObject* obj = this; !obj->structure()->hasGetterSetterProperties(); obj = asObject(prototype)) {
prototype = obj->prototype();
if (prototype.isNull()) {
putDirectInternal(exec->globalData(), propertyName, value, 0, true, slot);
return;
}
}
unsigned attributes;
JSCell* specificValue;
if ((m_structure->get(propertyName, attributes, specificValue) != WTF::notFound) && attributes & ReadOnly)
return;
for (JSObject* obj = this; ; obj = asObject(prototype)) {
if (JSValue gs = obj->getDirect(propertyName)) {
if (gs.isGetterSetter()) {
JSObject* setterFunc = asGetterSetter(gs)->setter();
if (!setterFunc) {
throwSetterError(exec);
return;
}
CallData callData;
CallType callType = setterFunc->getCallData(callData);
MarkedArgumentBuffer args;
args.append(value);
call(exec, setterFunc, callType, callData, this, args);
return;
}
// If there's an existing property on the object or one of its
// prototypes it should be replaced, so break here.
break;
}
prototype = obj->prototype();
if (prototype.isNull())
break;
}
putDirectInternal(exec->globalData(), propertyName, value, 0, true, slot);
return;
}
// ECMA 8.7.2
bool JSValue::putToPrimitive(ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (Optional<uint32_t> index = parseIndex(propertyName))
return putToPrimitiveByIndex(exec, index.value(), value, slot.isStrictMode());
// Check if there are any setters or getters in the prototype chain
JSObject* obj = synthesizePrototype(exec);
if (UNLIKELY(!obj))
return false;
JSValue prototype;
if (propertyName != exec->propertyNames().underscoreProto) {
for (; !obj->structure()->hasReadOnlyOrGetterSetterPropertiesExcludingProto(); obj = asObject(prototype)) {
prototype = obj->getPrototypeDirect();
if (prototype.isNull()) {
if (slot.isStrictMode())
throwTypeError(exec, scope, StrictModeReadonlyPropertyWriteError);
return false;
}
}
}
for (; ; obj = asObject(prototype)) {
unsigned attributes;
PropertyOffset offset = obj->structure()->get(vm, propertyName, attributes);
if (offset != invalidOffset) {
if (attributes & ReadOnly) {
if (slot.isStrictMode())
throwTypeError(exec, scope, StrictModeReadonlyPropertyWriteError);
return false;
}
JSValue gs = obj->getDirect(offset);
if (gs.isGetterSetter())
return callSetter(exec, *this, gs, value, slot.isStrictMode() ? StrictMode : NotStrictMode);
if (gs.isCustomGetterSetter())
return callCustomSetter(exec, gs, attributes & CustomAccessor, obj, slot.thisValue(), value);
// If there's an existing property on the object or one of its
// prototypes it should be replaced, so break here.
break;
}
prototype = obj->getPrototype(vm, exec);
if (vm.exception())
return false;
if (prototype.isNull())
break;
}
if (slot.isStrictMode())
throwTypeError(exec, scope, StrictModeReadonlyPropertyWriteError);
return false;
}
bool Structure::prototypeChainMayInterceptStoreTo(JSGlobalData& globalData, PropertyName propertyName)
{
unsigned i = propertyName.asIndex();
if (i != PropertyName::NotAnIndex)
return anyObjectInChainMayInterceptIndexedAccesses();
for (Structure* current = this; ;) {
JSValue prototype = current->storedPrototype();
if (prototype.isNull())
return false;
current = prototype.asCell()->structure();
unsigned attributes;
JSCell* specificValue;
PropertyOffset offset = current->get(globalData, propertyName, attributes, specificValue);
if (!JSC::isValidOffset(offset))
continue;
if (attributes & (ReadOnly | Accessor))
return true;
return false;
}
}
JSValue JSDOMWindow::atob(ExecState* exec, const ArgList& args)
{
if (args.size() < 1)
return throwError(exec, SyntaxError, "Not enough arguments");
JSValue v = args.at(0);
if (v.isNull())
return jsEmptyString(exec);
UString s = v.toString(exec);
if (!s.is8Bit()) {
setDOMException(exec, INVALID_CHARACTER_ERR);
return jsUndefined();
}
Vector<char> in(s.size());
for (int i = 0; i < s.size(); ++i)
in[i] = static_cast<char>(s.data()[i]);
Vector<char> out;
if (!base64Decode(in, out))
return throwError(exec, GeneralError, "Cannot decode base64");
return jsString(exec, String(out.data(), out.size()));
}
RuntimeType runtimeTypeForValue(JSValue value)
{
if (UNLIKELY(!value))
return TypeNothing;
if (value.isUndefined())
return TypeUndefined;
if (value.isNull())
return TypeNull;
if (value.isAnyInt())
return TypeAnyInt;
if (value.isNumber())
return TypeNumber;
if (value.isString())
return TypeString;
if (value.isBoolean())
return TypeBoolean;
if (value.isObject())
return TypeObject;
if (value.isFunction())
return TypeFunction;
if (value.isSymbol())
return TypeSymbol;
return TypeNothing;
}
JSValue JSCommandLineAPIHost::getEventListeners(ExecState& state)
{
if (state.argumentCount() < 1)
return jsUndefined();
JSValue value = state.uncheckedArgument(0);
if (!value.isObject() || value.isNull())
return jsUndefined();
Node* node = JSNode::toWrapped(value);
if (!node)
return jsUndefined();
Vector<EventListenerInfo> listenersArray;
wrapped().getEventListenersImpl(node, listenersArray);
JSObject* result = constructEmptyObject(&state);
for (size_t i = 0; i < listenersArray.size(); ++i) {
JSArray* listeners = getJSListenerFunctions(state, &node->document(), listenersArray[i]);
if (!listeners->length())
continue;
AtomicString eventType = listenersArray[i].eventType;
result->putDirect(state.vm(), Identifier::fromString(&state, eventType.impl()), JSValue(listeners));
}
return result;
}
void dumpImmediate(JSValue value)
{
if (value.isNull())
write(NullTag);
else if (value.isUndefined())
write(UndefinedTag);
else if (value.isNumber()) {
if (value.isInt32()) {
if (!value.asInt32())
write(ZeroTag);
else if (value.asInt32() == 1)
write(OneTag);
else {
write(IntTag);
write(static_cast<uint32_t>(value.asInt32()));
}
} else {
write(DoubleTag);
write(value.asDouble());
}
} else if (value.isBoolean()) {
if (value.isTrue())
write(TrueTag);
else
write(FalseTag);
}
}
JSValue JSInjectedScriptHost::getEventListeners(ExecState* exec)
{
if (exec->argumentCount() < 1)
return jsUndefined();
JSValue value = exec->argument(0);
if (!value.isObject() || value.isNull())
return jsUndefined();
Node* node = toNode(value);
if (!node)
return jsUndefined();
// This can only happen for orphan DocumentType nodes.
Document* document = node->document();
if (!node->document())
return jsUndefined();
Vector<EventListenerInfo> listenersArray;
impl()->getEventListenersImpl(node, listenersArray);
JSObject* result = constructEmptyObject(exec);
for (size_t i = 0; i < listenersArray.size(); ++i) {
JSArray* listeners = getJSListenerFunctions(exec, document, listenersArray[i]);
if (!listeners->length())
continue;
AtomicString eventType = listenersArray[i].eventType;
result->putDirect(exec->globalData(), Identifier(exec, eventType.impl()), JSValue(listeners));
}
return result;
}
RuntimeType TypeSet::getRuntimeTypeForValue(JSValue v)
{
RuntimeType ret;
if (v.isFunction())
ret = TypeFunction;
else if (v.isUndefined())
ret = TypeUndefined;
else if (v.isNull())
ret = TypeNull;
else if (v.isBoolean())
ret = TypeBoolean;
else if (v.isMachineInt())
ret = TypeMachineInt;
else if (v.isNumber())
ret = TypeNumber;
else if (v.isString())
ret = TypeString;
else if (v.isPrimitive())
ret = TypePrimitive;
else if (v.isObject())
ret = TypeObject;
else
CRASH();
return ret;
}
bool JSValueIsNull(JSContextRef ctx, JSValueRef value)
{
ExecState* exec = toJS(ctx);
APIEntryShim entryShim(exec);
JSValue jsValue = toJS(exec, value);
return jsValue.isNull();
}
void JSHTMLDataGridElement::setDataSource(ExecState*, JSValue value)
{
if (value.isNull()) {
static_cast<HTMLDataGridElement*>(impl())->setDataSource(0);
return;
}
static_cast<HTMLDataGridElement*>(impl())->setDataSource(JSDataGridDataSource::create(value, impl()->document()->frame()));
}
bool JSValueIsNull(JSContextRef ctx, JSValueRef value)
{
ExecState* exec = toJS(ctx);
exec->globalData().heap.registerThread();
JSLock lock(exec);
JSValue jsValue = toJS(exec, value);
return jsValue.isNull();
}
std::unique_ptr<PolyProtoAccessChain> PolyProtoAccessChain::create(JSGlobalObject* globalObject, JSCell* base, JSObject* target, bool& usesPolyProto)
{
JSCell* current = base;
VM& vm = *base->vm();
bool found = false;
usesPolyProto = false;
std::unique_ptr<PolyProtoAccessChain> result(new PolyProtoAccessChain());
for (unsigned iterationNumber = 0; true; ++iterationNumber) {
Structure* structure = current->structure(vm);
if (!structure->propertyAccessesAreCacheable())
return nullptr;
if (structure->isProxy())
return nullptr;
if (structure->isDictionary()) {
ASSERT(structure->isObject());
if (structure->hasBeenFlattenedBefore())
return nullptr;
structure->flattenDictionaryStructure(vm, asObject(current));
}
// To save memory, we don't include the base in the chain. We let
// AccessCase provide the base to us as needed.
if (iterationNumber)
result->m_chain.append(structure);
else
RELEASE_ASSERT(current == base);
if (current == target) {
found = true;
break;
}
// We only have poly proto if we need to access our prototype via
// the poly proto protocol. If the slot base is the only poly proto
// thing in the chain, and we have a cache hit on it, then we're not
// poly proto.
usesPolyProto |= structure->hasPolyProto();
JSValue prototype = structure->prototypeForLookup(globalObject, current);
if (prototype.isNull())
break;
current = asObject(prototype);
}
if (!found && !!target)
return nullptr;
return result;
}
IntendedStructureChain::IntendedStructureChain(JSGlobalObject* globalObject, Structure* head)
: m_globalObject(globalObject)
, m_head(head)
{
JSValue prototype = head->prototypeForLookup(globalObject);
if (prototype.isNull())
return;
for (Structure* current = asObject(prototype)->structure(); current; current = current->storedPrototypeStructure())
m_vector.append(current);
}
IntendedStructureChain::IntendedStructureChain(JSGlobalObject* globalObject, JSValue prototype)
: m_globalObject(globalObject)
, m_prototype(prototype)
{
ASSERT(m_prototype.isNull() || m_prototype.isObject());
if (prototype.isNull())
return;
for (Structure* current = asObject(prototype)->structure(); current; current = current->storedPrototypeStructure())
m_vector.append(current);
}
bool _NPN_Invoke(NPP npp, NPObject* o, NPIdentifier methodName, const NPVariant* args, uint32_t argCount, NPVariant* result)
{
if (o->_class == NPScriptObjectClass) {
JavaScriptObject* obj = (JavaScriptObject*)o;
if (!_isSafeScript(obj))
return false;
PrivateIdentifier* i = (PrivateIdentifier*)methodName;
if (!i->isString)
return false;
// Special case the "eval" method.
if (methodName == _NPN_GetStringIdentifier("eval")) {
if (argCount != 1)
return false;
if (args[0].type != NPVariantType_String)
return false;
return _NPN_Evaluate(npp, o, (NPString *)&args[0].value.stringValue, result);
}
// Lookup the function object.
RootObject* rootObject = obj->rootObject;
if (!rootObject || !rootObject->isValid())
return false;
ExecState* exec = rootObject->interpreter()->globalExec();
JSLock lock;
JSValue* func = obj->imp->get(exec, identifierFromNPIdentifier(i->value.string));
if (func->isNull()) {
NULL_TO_NPVARIANT(*result);
return false;
}
if (func->isUndefined()) {
VOID_TO_NPVARIANT(*result);
return false;
}
// Call the function object.
JSObject *funcImp = static_cast<JSObject*>(func);
JSObject *thisObj = const_cast<JSObject*>(obj->imp);
List argList = listFromVariantArgs(exec, args, argCount, rootObject);
rootObject->interpreter()->startTimeoutCheck();
JSValue *resultV = funcImp->call (exec, thisObj, argList);
rootObject->interpreter()->stopTimeoutCheck();
// Convert and return the result of the function call.
convertValueToNPVariant(exec, resultV, result);
return true;
}
if (o->_class->invoke)
return o->_class->invoke(o, methodName, args, argCount, result);
VOID_TO_NPVARIANT(*result);
return true;
}
static RefPtr<InspectorValue> jsToInspectorValue(ExecState* scriptState, JSValue value, int maxDepth)
{
if (!value) {
ASSERT_NOT_REACHED();
return nullptr;
}
if (!maxDepth)
return nullptr;
maxDepth--;
if (value.isNull() || value.isUndefined())
return InspectorValue::null();
if (value.isBoolean())
return InspectorValue::create(value.asBoolean());
if (value.isNumber() && value.isDouble())
return InspectorValue::create(value.asNumber());
if (value.isNumber() && value.isMachineInt())
return InspectorValue::create(static_cast<int>(value.asMachineInt()));
if (value.isString())
return InspectorValue::create(value.getString(scriptState));
if (value.isObject()) {
if (isJSArray(value)) {
Ref<InspectorArray> inspectorArray = InspectorArray::create();
JSArray* array = asArray(value);
unsigned length = array->length();
for (unsigned i = 0; i < length; i++) {
JSValue element = array->getIndex(scriptState, i);
RefPtr<InspectorValue> elementValue = jsToInspectorValue(scriptState, element, maxDepth);
if (!elementValue)
return nullptr;
inspectorArray->pushValue(WTFMove(elementValue));
}
return WTFMove(inspectorArray);
}
Ref<InspectorObject> inspectorObject = InspectorObject::create();
JSObject* object = value.getObject();
PropertyNameArray propertyNames(scriptState, PropertyNameMode::Strings);
object->methodTable()->getOwnPropertyNames(object, scriptState, propertyNames, EnumerationMode());
for (size_t i = 0; i < propertyNames.size(); i++) {
const Identifier& name = propertyNames[i];
JSValue propertyValue = object->get(scriptState, name);
RefPtr<InspectorValue> inspectorValue = jsToInspectorValue(scriptState, propertyValue, maxDepth);
if (!inspectorValue)
return nullptr;
inspectorObject->setValue(name.string(), WTFMove(inspectorValue));
}
return WTFMove(inspectorObject);
}
ASSERT_NOT_REACHED();
return nullptr;
}
static PassRefPtr<InspectorValue> jsToInspectorValue(ScriptState* scriptState, JSValue value, int maxDepth)
{
if (!value) {
ASSERT_NOT_REACHED();
return 0;
}
if (!maxDepth)
return 0;
maxDepth--;
if (value.isNull() || value.isUndefined())
return InspectorValue::null();
if (value.isBoolean())
return InspectorBasicValue::create(value.asBoolean());
if (value.isNumber())
return InspectorBasicValue::create(value.asNumber());
if (value.isString()) {
String s = value.getString(scriptState);
return InspectorString::create(String(s.characters(), s.length()));
}
if (value.isObject()) {
if (isJSArray(value)) {
RefPtr<InspectorArray> inspectorArray = InspectorArray::create();
JSArray* array = asArray(value);
unsigned length = array->length();
for (unsigned i = 0; i < length; i++) {
// FIXME: What if the array is in sparse mode? https://bugs.webkit.org/show_bug.cgi?id=95610
JSValue element = array->getIndexQuickly(i);
RefPtr<InspectorValue> elementValue = jsToInspectorValue(scriptState, element, maxDepth);
if (!elementValue)
return 0;
inspectorArray->pushValue(elementValue);
}
return inspectorArray;
}
RefPtr<InspectorObject> inspectorObject = InspectorObject::create();
JSObject* object = value.getObject();
PropertyNameArray propertyNames(scriptState);
object->methodTable()->getOwnPropertyNames(object, scriptState, propertyNames, ExcludeDontEnumProperties);
for (size_t i = 0; i < propertyNames.size(); i++) {
const Identifier& name = propertyNames[i];
JSValue propertyValue = object->get(scriptState, name);
RefPtr<InspectorValue> inspectorValue = jsToInspectorValue(scriptState, propertyValue, maxDepth);
if (!inspectorValue)
return 0;
inspectorObject->setValue(String(name.characters(), name.length()), inspectorValue);
}
return inspectorObject;
}
ASSERT_NOT_REACHED();
return 0;
}
bool JSValueIsNull(JSContextRef ctx, JSValueRef value)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return false;
}
ExecState* exec = toJS(ctx);
JSLockHolder locker(exec);
JSValue jsValue = toJS(exec, value);
return jsValue.isNull();
}
JSValue JSInspectorCallbackWrapper::wrap(ExecState* unwrappedExec, JSValue unwrappedValue)
{
if (!unwrappedValue.isObject())
return unwrappedValue;
JSObject* unwrappedObject = asObject(unwrappedValue);
if (unwrappedObject->inherits(&JSInspectorCallbackWrapper::s_info))
return unwrappedObject;
if (JSInspectorCallbackWrapper* wrapper = wrappers().get(unwrappedObject))
return wrapper;
JSValue prototype = unwrappedObject->prototype();
ASSERT(prototype.isNull() || prototype.isObject());
if (prototype.isNull()) {
static Structure* structure = leakInspectorCallbackWrapperStructure();
return new (unwrappedExec) JSInspectorCallbackWrapper(unwrappedExec, unwrappedObject, structure);
}
return new (unwrappedExec) JSInspectorCallbackWrapper(unwrappedExec, unwrappedObject, createStructure(wrap(unwrappedExec, prototype)));
}
static EncodedJSValue JSC_HOST_CALL performProxyRevoke(ExecState* exec)
{
ProxyRevoke* proxyRevoke = jsCast<ProxyRevoke*>(exec->jsCallee());
JSValue proxyValue = proxyRevoke->proxy();
if (proxyValue.isNull())
return JSValue::encode(jsUndefined());
ProxyObject* proxy = jsCast<ProxyObject*>(proxyValue);
VM& vm = exec->vm();
proxy->revoke(vm);
proxyRevoke->setProxyToNull(vm);
return JSValue::encode(jsUndefined());
}
bool Structure::anyObjectInChainMayInterceptIndexedAccesses() const
{
for (const Structure* current = this; ;) {
if (current->mayInterceptIndexedAccesses())
return true;
JSValue prototype = current->storedPrototype();
if (prototype.isNull())
return false;
current = asObject(prototype)->structure();
}
}
static PassRefPtr<InspectorValue> jsToInspectorValue(ScriptState* scriptState, JSValue value)
{
if (!value) {
ASSERT_NOT_REACHED();
return 0;
}
if (value.isNull() || value.isUndefined())
return InspectorValue::null();
if (value.isBoolean())
return InspectorBasicValue::create(value.getBoolean());
if (value.isNumber())
return InspectorBasicValue::create(value.uncheckedGetNumber());
if (value.isString()) {
UString s = value.getString(scriptState);
return InspectorString::create(String(s.characters(), s.length()));
}
if (value.isObject()) {
if (isJSArray(&scriptState->globalData(), value)) {
RefPtr<InspectorArray> inspectorArray = InspectorArray::create();
JSArray* array = asArray(value);
unsigned length = array->length();
for (unsigned i = 0; i < length; i++) {
JSValue element = array->getIndex(i);
RefPtr<InspectorValue> elementValue = jsToInspectorValue(scriptState, element);
if (!elementValue) {
ASSERT_NOT_REACHED();
elementValue = InspectorValue::null();
}
inspectorArray->pushValue(elementValue);
}
return inspectorArray;
}
RefPtr<InspectorObject> inspectorObject = InspectorObject::create();
JSObject* object = value.getObject();
PropertyNameArray propertyNames(scriptState);
object->getOwnPropertyNames(scriptState, propertyNames);
for (size_t i = 0; i < propertyNames.size(); i++) {
const Identifier& name = propertyNames[i];
JSValue propertyValue = object->get(scriptState, name);
RefPtr<InspectorValue> inspectorValue = jsToInspectorValue(scriptState, propertyValue);
if (!inspectorValue) {
ASSERT_NOT_REACHED();
inspectorValue = InspectorValue::null();
}
inspectorObject->setValue(String(name.characters(), name.length()), inspectorValue);
}
return inspectorObject;
}
ASSERT_NOT_REACHED();
return 0;
}
EncodedJSValue JSC_HOST_CALL objectConstructorCreate(ExecState* exec)
{
JSValue proto = exec->argument(0);
if (!proto.isObject() && !proto.isNull())
return throwVMError(exec, createTypeError(exec, ASCIILiteral("Object prototype may only be an Object or null.")));
JSObject* newObject = proto.isObject()
? constructEmptyObject(exec, asObject(proto))
: constructEmptyObject(exec, exec->lexicalGlobalObject()->nullPrototypeObjectStructure());
if (exec->argument(1).isUndefined())
return JSValue::encode(newObject);
if (!exec->argument(1).isObject())
return throwVMError(exec, createTypeError(exec, ASCIILiteral("Property descriptor list must be an Object.")));
return JSValue::encode(defineProperties(exec, newObject, asObject(exec->argument(1))));
}
void ScriptCallStack::initialize()
{
if (!m_caller || m_initialized)
return;
JSValue func = m_exec->interpreter()->retrieveCaller(m_exec, m_caller);
while (!func.isNull()) {
InternalFunction* internalFunction = asInternalFunction(func);
ArgList emptyArgList;
m_frames.append(ScriptCallFrame(internalFunction->name(m_exec), UString(), 0, emptyArgList, 0));
func = m_exec->interpreter()->retrieveCaller(m_exec, internalFunction);
}
m_initialized = true;
}
bool jsIsObjectType(JSValue v)
{
if (!v.isCell())
return v.isNull();
JSType type = asCell(v)->structure()->typeInfo().type();
if (type == NumberType || type == StringType)
return false;
if (type == ObjectType) {
if (asObject(v)->structure()->typeInfo().masqueradesAsUndefined())
return false;
CallData callData;
if (asObject(v)->getCallData(callData) != CallTypeNone)
return false;
}
return true;
}
bool JSString::getOwnPropertySlot(JSCell* cell, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
{
JSString* thisObject = jsCast<JSString*>(cell);
// The semantics here are really getPropertySlot, not getOwnPropertySlot.
// This function should only be called by JSValue::get.
if (thisObject->getStringPropertySlot(exec, propertyName, slot))
return true;
slot.setBase(thisObject);
JSObject* object;
for (JSValue prototype = exec->lexicalGlobalObject()->stringPrototype(); !prototype.isNull(); prototype = object->prototype()) {
object = asObject(prototype);
if (object->methodTable()->getOwnPropertySlot(object, exec, propertyName, slot))
return true;
}
slot.setUndefined();
return true;
}
void NPRuntimeObjectMap::convertJSValueToNPVariant(ExecState* exec, JSValue value, NPVariant& variant)
{
JSLock lock(SilenceAssertionsOnly);
VOID_TO_NPVARIANT(variant);
if (value.isNull()) {
NULL_TO_NPVARIANT(variant);
return;
}
if (value.isUndefined()) {
VOID_TO_NPVARIANT(variant);
return;
}
if (value.isBoolean()) {
BOOLEAN_TO_NPVARIANT(value.toBoolean(exec), variant);
return;
}
if (value.isNumber()) {
DOUBLE_TO_NPVARIANT(value.toNumber(exec), variant);
return;
}
if (value.isString()) {
CString utf8String = value.toString(exec).utf8();
// This should use NPN_MemAlloc, but we know that it uses malloc under the hood.
char* utf8Characters = static_cast<char*>(malloc(utf8String.length()));
memcpy(utf8Characters, utf8String.data(), utf8String.length());
STRINGN_TO_NPVARIANT(utf8Characters, utf8String.length(), variant);
return;
}
if (value.isObject()) {
NPObject* npObject = getOrCreateNPObject(asObject(value));
OBJECT_TO_NPVARIANT(npObject, variant);
return;
}
ASSERT_NOT_REACHED();
}
bool jsIsObjectTypeOrNull(CallFrame* callFrame, JSValue v)
{
if (!v.isCell())
return v.isNull();
JSType type = v.asCell()->type();
if (type == StringType || type == SymbolType)
return false;
if (type >= ObjectType) {
if (asObject(v)->structure(callFrame->vm())->masqueradesAsUndefined(callFrame->lexicalGlobalObject()))
return false;
CallData callData;
JSObject* object = asObject(v);
if (object->methodTable(callFrame->vm())->getCallData(object, callData) != CallTypeNone)
return false;
}
return true;
}