static bool populateContextMenuItems(v8::Isolate* isolate,
const v8::Local<v8::Array>& itemArray,
ContextMenu& menu) {
v8::Local<v8::Context> context = isolate->GetCurrentContext();
for (size_t i = 0; i < itemArray->Length(); ++i) {
v8::Local<v8::Object> item =
itemArray->Get(context, i).ToLocalChecked().As<v8::Object>();
v8::Local<v8::Value> type;
v8::Local<v8::Value> id;
v8::Local<v8::Value> label;
v8::Local<v8::Value> enabled;
v8::Local<v8::Value> checked;
v8::Local<v8::Value> subItems;
if (!item->Get(context, v8AtomicString(isolate, "type")).ToLocal(&type) ||
!item->Get(context, v8AtomicString(isolate, "id")).ToLocal(&id) ||
!item->Get(context, v8AtomicString(isolate, "label")).ToLocal(&label) ||
!item->Get(context, v8AtomicString(isolate, "enabled"))
.ToLocal(&enabled) ||
!item->Get(context, v8AtomicString(isolate, "checked"))
.ToLocal(&checked) ||
!item->Get(context, v8AtomicString(isolate, "subItems"))
.ToLocal(&subItems))
return false;
if (!type->IsString())
continue;
String typeString = toCoreStringWithNullCheck(type.As<v8::String>());
if (typeString == "separator") {
ContextMenuItem item(ContextMenuItem(
SeparatorType, ContextMenuItemCustomTagNoAction, String(), String()));
menu.appendItem(item);
} else if (typeString == "subMenu" && subItems->IsArray()) {
ContextMenu subMenu;
v8::Local<v8::Array> subItemsArray = v8::Local<v8::Array>::Cast(subItems);
if (!populateContextMenuItems(isolate, subItemsArray, subMenu))
return false;
TOSTRING_DEFAULT(V8StringResource<TreatNullAsNullString>, labelString,
label, false);
ContextMenuItem item(SubmenuType, ContextMenuItemCustomTagNoAction,
labelString, String(), &subMenu);
menu.appendItem(item);
} else {
int32_t int32Id;
if (!v8Call(id->Int32Value(context), int32Id))
return false;
ContextMenuAction typedId = static_cast<ContextMenuAction>(
ContextMenuItemBaseCustomTag + int32Id);
TOSTRING_DEFAULT(V8StringResource<TreatNullAsNullString>, labelString,
label, false);
ContextMenuItem menuItem(
(typeString == "checkbox" ? CheckableActionType : ActionType),
typedId, labelString, String());
if (checked->IsBoolean())
menuItem.setChecked(checked.As<v8::Boolean>()->Value());
if (enabled->IsBoolean())
menuItem.setEnabled(enabled.As<v8::Boolean>()->Value());
menu.appendItem(menuItem);
}
}
return true;
}
static void messageHandlerInWorker(v8::Local<v8::Message> message, v8::Local<v8::Value> data)
{
v8::Isolate* isolate = v8::Isolate::GetCurrent();
V8PerIsolateData* perIsolateData = V8PerIsolateData::from(isolate);
// During the frame teardown, there may not be a valid context.
ScriptState* scriptState = ScriptState::current(isolate);
if (!scriptState->contextIsValid())
return;
// Exceptions that occur in error handler should be ignored since in that case
// WorkerGlobalScope::reportException will send the exception to the worker object.
if (perIsolateData->isReportingException())
return;
perIsolateData->setReportingException(true);
ExecutionContext* context = scriptState->getExecutionContext();
std::unique_ptr<SourceLocation> location = SourceLocation::fromMessage(isolate, message, context);
ErrorEvent* event = ErrorEvent::create(toCoreStringWithNullCheck(message->Get()), std::move(location), &scriptState->world());
AccessControlStatus corsStatus = message->IsSharedCrossOrigin() ? SharableCrossOrigin : NotSharableCrossOrigin;
// If execution termination has been triggered as part of constructing
// the error event from the v8::Message, quietly leave.
if (!isolate->IsExecutionTerminating()) {
V8ErrorHandler::storeExceptionOnErrorEventWrapper(scriptState, event, data, scriptState->context()->Global());
scriptState->getExecutionContext()->reportException(event, corsStatus);
}
perIsolateData->setReportingException(false);
}
static void messageHandlerInMainThread(v8::Local<v8::Message> message,
v8::Local<v8::Value> data) {
ASSERT(isMainThread());
v8::Isolate* isolate = v8::Isolate::GetCurrent();
if (isolate->GetEnteredContext().IsEmpty())
return;
// If called during context initialization, there will be no entered context.
ScriptState* scriptState = ScriptState::current(isolate);
if (!scriptState->contextIsValid())
return;
ExecutionContext* context = scriptState->getExecutionContext();
std::unique_ptr<SourceLocation> location =
SourceLocation::fromMessage(isolate, message, context);
AccessControlStatus accessControlStatus = NotSharableCrossOrigin;
if (message->IsOpaque())
accessControlStatus = OpaqueResource;
else if (message->IsSharedCrossOrigin())
accessControlStatus = SharableCrossOrigin;
ErrorEvent* event =
ErrorEvent::create(toCoreStringWithNullCheck(message->Get()),
std::move(location), &scriptState->world());
String messageForConsole = extractMessageForConsole(isolate, data);
if (!messageForConsole.isEmpty())
event->setUnsanitizedMessage("Uncaught " + messageForConsole);
// This method might be called while we're creating a new context. In this
// case, we avoid storing the exception object, as we can't create a wrapper
// during context creation.
// FIXME: Can we even get here during initialization now that we bail out when
// GetEntered returns an empty handle?
if (context->isDocument()) {
LocalFrame* frame = toDocument(context)->frame();
if (frame && frame->script().existingWindowProxy(scriptState->world())) {
V8ErrorHandler::storeExceptionOnErrorEventWrapper(
scriptState, event, data, scriptState->context()->Global());
}
}
if (scriptState->world().isPrivateScriptIsolatedWorld()) {
// We allow a private script to dispatch error events even in a
// EventDispatchForbiddenScope scope. Without having this ability, it's
// hard to debug the private script because syntax errors in the private
// script are not reported to console (the private script just crashes
// silently). Allowing error events in private scripts is safe because
// error events don't propagate to other isolated worlds (which means that
// the error events won't fire any event listeners in user's scripts).
EventDispatchForbiddenScope::AllowUserAgentEvents allowUserAgentEvents;
context->dispatchErrorEvent(event, accessControlStatus);
} else {
context->dispatchErrorEvent(event, accessControlStatus);
}
}
static void promiseRejectHandlerInMainThread(v8::PromiseRejectMessage data)
{
ASSERT(isMainThread());
if (data.GetEvent() == v8::kPromiseHandlerAddedAfterReject) {
rejectedPromisesOnMainThread().handlerAdded(data);
return;
}
ASSERT(data.GetEvent() == v8::kPromiseRejectWithNoHandler);
v8::Local<v8::Promise> promise = data.GetPromise();
v8::Isolate* isolate = promise->GetIsolate();
// There is no entered window during microtask callbacks from V8,
// thus we call toDOMWindow() instead of enteredDOMWindow().
LocalDOMWindow* window = currentDOMWindow(isolate);
if (!window || !window->isCurrentlyDisplayedInFrame())
return;
v8::Local<v8::Value> exception = data.GetValue();
if (V8DOMWrapper::isWrapper(isolate, exception)) {
// Try to get the stack & location from a wrapped exception object (e.g. DOMException).
ASSERT(exception->IsObject());
v8::Local<v8::Object> obj = v8::Local<v8::Object>::Cast(exception);
v8::Local<v8::Value> error = V8HiddenValue::getHiddenValue(isolate, obj, V8HiddenValue::error(isolate));
if (!error.IsEmpty())
exception = error;
}
int scriptId = 0;
int lineNumber = 0;
int columnNumber = 0;
String resourceName;
String errorMessage;
RefPtrWillBeRawPtr<ScriptCallStack> callStack = nullptr;
v8::Local<v8::Message> message = v8::Exception::CreateMessage(exception);
if (!message.IsEmpty()) {
if (v8Call(message->GetLineNumber(isolate->GetCurrentContext()), lineNumber)
&& v8Call(message->GetStartColumn(isolate->GetCurrentContext()), columnNumber))
++columnNumber;
resourceName = extractResourceName(message, window->document());
errorMessage = toCoreStringWithNullCheck(message->Get());
callStack = extractCallStack(isolate, message, &scriptId);
} else if (!exception.IsEmpty() && exception->IsInt32()) {
// For Smi's the message would be empty.
errorMessage = "Uncaught " + String::number(exception.As<v8::Integer>()->Value());
}
String messageForConsole = extractMessageForConsole(isolate, data.GetValue());
if (!messageForConsole.isEmpty())
errorMessage = "Uncaught " + messageForConsole;
ScriptState* scriptState = ScriptState::current(isolate);
rejectedPromisesOnMainThread().rejectedWithNoHandler(scriptState, data, errorMessage, resourceName, scriptId, lineNumber, columnNumber, callStack);
}
static PassRefPtr<JSONValue> v8ToJSONValueInternal(v8::Handle<v8::Value> value, int maxDepth, v8::Isolate* isolate)
{
if (value.IsEmpty()) {
ASSERT_NOT_REACHED();
return nullptr;
}
if (!maxDepth)
return nullptr;
maxDepth--;
if (value->IsNull() || value->IsUndefined())
return JSONValue::null();
if (value->IsBoolean())
return JSONBasicValue::create(value->BooleanValue());
if (value->IsNumber())
return JSONBasicValue::create(value->NumberValue());
if (value->IsString())
return JSONString::create(toCoreString(value.As<v8::String>()));
if (value->IsArray()) {
v8::Handle<v8::Array> array = v8::Handle<v8::Array>::Cast(value);
RefPtr<JSONArray> inspectorArray = JSONArray::create();
uint32_t length = array->Length();
for (uint32_t i = 0; i < length; i++) {
v8::Local<v8::Value> value = array->Get(v8::Int32::New(isolate, i));
RefPtr<JSONValue> element = v8ToJSONValueInternal(value, maxDepth, isolate);
if (!element)
return nullptr;
inspectorArray->pushValue(element);
}
return inspectorArray;
}
if (value->IsObject()) {
RefPtr<JSONObject> jsonObject = JSONObject::create();
v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(value);
v8::Local<v8::Array> propertyNames = object->GetPropertyNames();
uint32_t length = propertyNames->Length();
for (uint32_t i = 0; i < length; i++) {
v8::Local<v8::Value> name = propertyNames->Get(v8::Int32::New(isolate, i));
// FIXME(yurys): v8::Object should support GetOwnPropertyNames
if (name->IsString() && !object->HasRealNamedProperty(v8::Handle<v8::String>::Cast(name)))
continue;
RefPtr<JSONValue> propertyValue = v8ToJSONValueInternal(object->Get(name), maxDepth, isolate);
if (!propertyValue)
return nullptr;
v8::Local<v8::String> nameString = name.As<v8::String>();
jsonObject->setValue(toCoreStringWithNullCheck(nameString), propertyValue);
}
return jsonObject;
}
ASSERT_NOT_REACHED();
return nullptr;
}
static void promiseRejectHandler(v8::PromiseRejectMessage data, RejectedPromises& rejectedPromises, const String& fallbackResourceName)
{
if (data.GetEvent() == v8::kPromiseHandlerAddedAfterReject) {
rejectedPromises.handlerAdded(data);
return;
}
ASSERT(data.GetEvent() == v8::kPromiseRejectWithNoHandler);
v8::Local<v8::Promise> promise = data.GetPromise();
v8::Isolate* isolate = promise->GetIsolate();
ScriptState* scriptState = ScriptState::current(isolate);
v8::Local<v8::Value> exception = data.GetValue();
if (V8DOMWrapper::isWrapper(isolate, exception)) {
// Try to get the stack & location from a wrapped exception object (e.g. DOMException).
ASSERT(exception->IsObject());
v8::Local<v8::Object> obj = v8::Local<v8::Object>::Cast(exception);
v8::Local<v8::Value> error = V8HiddenValue::getHiddenValue(scriptState, obj, V8HiddenValue::error(isolate));
if (!error.IsEmpty())
exception = error;
}
int scriptId = 0;
int lineNumber = 0;
int columnNumber = 0;
String resourceName = fallbackResourceName;
String errorMessage;
AccessControlStatus corsStatus = NotSharableCrossOrigin;
RefPtrWillBeRawPtr<ScriptCallStack> callStack = nullptr;
v8::Local<v8::Message> message = v8::Exception::CreateMessage(isolate, exception);
if (!message.IsEmpty()) {
V8StringResource<> v8ResourceName(message->GetScriptOrigin().ResourceName());
if (v8ResourceName.prepare())
resourceName = v8ResourceName;
scriptId = message->GetScriptOrigin().ScriptID()->Value();
if (v8Call(message->GetLineNumber(scriptState->context()), lineNumber)
&& v8Call(message->GetStartColumn(scriptState->context()), columnNumber))
++columnNumber;
// message->Get() can be empty here. https://crbug.com/450330
errorMessage = toCoreStringWithNullCheck(message->Get());
callStack = extractCallStack(isolate, message, &scriptId);
if (message->IsSharedCrossOrigin())
corsStatus = SharableCrossOrigin;
}
String messageForConsole = extractMessageForConsole(isolate, data.GetValue());
if (!messageForConsole.isEmpty())
errorMessage = "Uncaught " + messageForConsole;
rejectedPromises.rejectedWithNoHandler(scriptState, data, errorMessage, resourceName, scriptId, lineNumber, columnNumber, callStack, corsStatus);
}
static void messageHandlerInMainThread(v8::Local<v8::Message> message, v8::Local<v8::Value> data)
{
ASSERT(isMainThread());
v8::Isolate* isolate = v8::Isolate::GetCurrent();
// If called during context initialization, there will be no entered window.
LocalDOMWindow* enteredWindow = enteredDOMWindow(isolate);
if (!enteredWindow || !enteredWindow->isCurrentlyDisplayedInFrame())
return;
int scriptId = 0;
RefPtrWillBeRawPtr<ScriptCallStack> callStack = extractCallStack(isolate, message, &scriptId);
String resourceName = extractResourceName(message, enteredWindow->document());
AccessControlStatus accessControlStatus = NotSharableCrossOrigin;
if (message->IsOpaque())
accessControlStatus = OpaqueResource;
else if (message->IsSharedCrossOrigin())
accessControlStatus = SharableCrossOrigin;
ScriptState* scriptState = ScriptState::current(isolate);
String errorMessage = toCoreStringWithNullCheck(message->Get());
int lineNumber = 0;
int columnNumber = 0;
if (v8Call(message->GetLineNumber(scriptState->context()), lineNumber)
&& v8Call(message->GetStartColumn(scriptState->context()), columnNumber))
++columnNumber;
RefPtrWillBeRawPtr<ErrorEvent> event = ErrorEvent::create(errorMessage, resourceName, lineNumber, columnNumber, &scriptState->world());
String messageForConsole = extractMessageForConsole(isolate, data);
if (!messageForConsole.isEmpty())
event->setUnsanitizedMessage("Uncaught " + messageForConsole);
// This method might be called while we're creating a new context. In this case, we
// avoid storing the exception object, as we can't create a wrapper during context creation.
// FIXME: Can we even get here during initialization now that we bail out when GetEntered returns an empty handle?
LocalFrame* frame = enteredWindow->document()->frame();
if (frame && frame->script().existingWindowProxy(scriptState->world())) {
V8ErrorHandler::storeExceptionOnErrorEventWrapper(isolate, event.get(), data, scriptState->context()->Global());
}
if (scriptState->world().isPrivateScriptIsolatedWorld()) {
// We allow a private script to dispatch error events even in a EventDispatchForbiddenScope scope.
// Without having this ability, it's hard to debug the private script because syntax errors
// in the private script are not reported to console (the private script just crashes silently).
// Allowing error events in private scripts is safe because error events don't propagate to
// other isolated worlds (which means that the error events won't fire any event listeners
// in user's scripts).
EventDispatchForbiddenScope::AllowUserAgentEvents allowUserAgentEvents;
enteredWindow->document()->reportException(event.release(), scriptId, callStack, accessControlStatus);
} else {
enteredWindow->document()->reportException(event.release(), scriptId, callStack, accessControlStatus);
}
}
static void promiseRejectHandler(v8::PromiseRejectMessage data,
RejectedPromises& rejectedPromises,
ScriptState* scriptState) {
if (data.GetEvent() == v8::kPromiseHandlerAddedAfterReject) {
rejectedPromises.handlerAdded(data);
return;
}
ASSERT(data.GetEvent() == v8::kPromiseRejectWithNoHandler);
v8::Local<v8::Promise> promise = data.GetPromise();
v8::Isolate* isolate = promise->GetIsolate();
ExecutionContext* context = scriptState->getExecutionContext();
v8::Local<v8::Value> exception = data.GetValue();
if (V8DOMWrapper::isWrapper(isolate, exception)) {
// Try to get the stack & location from a wrapped exception object (e.g.
// DOMException).
ASSERT(exception->IsObject());
auto privateError = V8PrivateProperty::getDOMExceptionError(isolate);
v8::Local<v8::Value> error = privateError.getOrUndefined(
scriptState->context(), exception.As<v8::Object>());
if (!error->IsUndefined())
exception = error;
}
String errorMessage;
AccessControlStatus corsStatus = NotSharableCrossOrigin;
std::unique_ptr<SourceLocation> location;
v8::Local<v8::Message> message =
v8::Exception::CreateMessage(isolate, exception);
if (!message.IsEmpty()) {
// message->Get() can be empty here. https://crbug.com/450330
errorMessage = toCoreStringWithNullCheck(message->Get());
location = SourceLocation::fromMessage(isolate, message, context);
if (message->IsSharedCrossOrigin())
corsStatus = SharableCrossOrigin;
} else {
location =
SourceLocation::create(context->url().getString(), 0, 0, nullptr);
}
String messageForConsole = extractMessageForConsole(isolate, data.GetValue());
if (!messageForConsole.isEmpty())
errorMessage = "Uncaught " + messageForConsole;
rejectedPromises.rejectedWithNoHandler(scriptState, data, errorMessage,
std::move(location), corsStatus);
}
void V8LazyEventListener::fireErrorEvent(v8::Local<v8::Context> v8Context, ExecutionContext* executionContext, v8::Local<v8::Message> message)
{
String messageText = toCoreStringWithNullCheck(message->Get());
int lineNumber = 0;
int columnNumber = 0;
if (v8Call(message->GetLineNumber(v8Context), lineNumber)
&& v8Call(message->GetStartColumn(v8Context), columnNumber))
++columnNumber;
RefPtrWillBeRawPtr<ErrorEvent> event = ErrorEvent::create(messageText, m_sourceURL, lineNumber, columnNumber, &world());
AccessControlStatus accessControlStatus = NotSharableCrossOrigin;
if (message->IsOpaque())
accessControlStatus = OpaqueResource;
else if (message->IsSharedCrossOrigin())
accessControlStatus = SharableCrossOrigin;
executionContext->reportException(event.release(), 0, nullptr, accessControlStatus);
}
static void promiseRejectHandlerInWorker(v8::PromiseRejectMessage data)
{
v8::Local<v8::Promise> promise = data.GetPromise();
// Bail out if called during context initialization.
v8::Isolate* isolate = promise->GetIsolate();
ScriptState* scriptState = ScriptState::current(isolate);
if (!scriptState->contextIsValid())
return;
ExecutionContext* executionContext = scriptState->executionContext();
if (!executionContext)
return;
ASSERT(executionContext->isWorkerGlobalScope());
WorkerScriptController* scriptController = toWorkerGlobalScope(executionContext)->script();
ASSERT(scriptController);
if (data.GetEvent() == v8::kPromiseHandlerAddedAfterReject) {
scriptController->rejectedPromises()->handlerAdded(data);
return;
}
ASSERT(data.GetEvent() == v8::kPromiseRejectWithNoHandler);
int scriptId = 0;
int lineNumber = 0;
int columnNumber = 0;
String resourceName;
String errorMessage;
v8::Local<v8::Message> message = v8::Exception::CreateMessage(data.GetValue());
if (!message.IsEmpty()) {
TOSTRING_VOID(V8StringResource<>, resourceName, message->GetScriptOrigin().ResourceName());
scriptId = message->GetScriptOrigin().ScriptID()->Value();
if (v8Call(message->GetLineNumber(scriptState->context()), lineNumber)
&& v8Call(message->GetStartColumn(scriptState->context()), columnNumber))
++columnNumber;
// message->Get() can be empty here. https://crbug.com/450330
errorMessage = toCoreStringWithNullCheck(message->Get());
}
scriptController->rejectedPromises()->rejectedWithNoHandler(scriptState, data, errorMessage, resourceName, scriptId, lineNumber, columnNumber, nullptr);
}
static bool populateContextMenuItems(v8::Local<v8::Array>& itemArray, ContextMenu& menu, v8::Isolate* isolate)
{
for (size_t i = 0; i < itemArray->Length(); ++i) {
v8::Local<v8::Object> item = v8::Local<v8::Object>::Cast(itemArray->Get(i));
v8::Local<v8::Value> type = item->Get(v8AtomicString(isolate, "type"));
v8::Local<v8::Value> id = item->Get(v8AtomicString(isolate, "id"));
v8::Local<v8::Value> label = item->Get(v8AtomicString(isolate, "label"));
v8::Local<v8::Value> enabled = item->Get(v8AtomicString(isolate, "enabled"));
v8::Local<v8::Value> checked = item->Get(v8AtomicString(isolate, "checked"));
v8::Local<v8::Value> subItems = item->Get(v8AtomicString(isolate, "subItems"));
if (!type->IsString())
continue;
String typeString = toCoreStringWithNullCheck(type.As<v8::String>());
if (typeString == "separator") {
ContextMenuItem item(ContextMenuItem(SeparatorType,
ContextMenuItemCustomTagNoAction,
String()));
menu.appendItem(item);
} else if (typeString == "subMenu" && subItems->IsArray()) {
ContextMenu subMenu;
v8::Local<v8::Array> subItemsArray = v8::Local<v8::Array>::Cast(subItems);
if (!populateContextMenuItems(subItemsArray, subMenu, isolate))
return false;
V8TRYCATCH_FOR_V8STRINGRESOURCE_RETURN(V8StringResource<WithNullCheck>, labelString, label, false);
ContextMenuItem item(SubmenuType,
ContextMenuItemCustomTagNoAction,
labelString,
&subMenu);
menu.appendItem(item);
} else {
ContextMenuAction typedId = static_cast<ContextMenuAction>(ContextMenuItemBaseCustomTag + id->ToInt32()->Value());
V8TRYCATCH_FOR_V8STRINGRESOURCE_RETURN(V8StringResource<WithNullCheck>, labelString, label, false);
ContextMenuItem menuItem((typeString == "checkbox" ? CheckableActionType : ActionType), typedId, labelString);
if (checked->IsBoolean())
menuItem.setChecked(checked->ToBoolean()->Value());
if (enabled->IsBoolean())
menuItem.setEnabled(enabled->ToBoolean()->Value());
menu.appendItem(menuItem);
}
}
return true;
}
String ScriptPreprocessor::preprocessSourceCode(const String& sourceCode, const String& sourceName, v8::Handle<v8::Value> functionName)
{
if (!isValid())
return sourceCode;
v8::HandleScope handleScope(m_isolate);
v8::Context::Scope contextScope(m_context.newLocal(m_isolate));
v8::Handle<v8::String> sourceCodeString = v8String(m_isolate, sourceCode);
v8::Handle<v8::String> sourceNameString = v8String(m_isolate, sourceName);
v8::Handle<v8::Value> argv[] = { sourceCodeString, sourceNameString, functionName};
v8::TryCatch tryCatch;
tryCatch.SetVerbose(true);
TemporaryChange<bool> isPreprocessing(m_isPreprocessing, true);
v8::Handle<v8::Value> resultValue = V8ScriptRunner::callAsFunction(m_preprocessorFunction.newLocal(m_isolate), m_context.newLocal(m_isolate)->Global(), WTF_ARRAY_LENGTH(argv), argv);
if (!resultValue.IsEmpty() && resultValue->IsString())
return toCoreStringWithNullCheck(resultValue.As<v8::String>());
return sourceCode;
}
static void messageHandlerInWorker(v8::Local<v8::Message> message, v8::Local<v8::Value> data)
{
v8::Isolate* isolate = v8::Isolate::GetCurrent();
V8PerIsolateData* perIsolateData = V8PerIsolateData::from(isolate);
// Exceptions that occur in error handler should be ignored since in that case
// WorkerGlobalScope::reportException will send the exception to the worker object.
if (perIsolateData->isReportingException())
return;
perIsolateData->setReportingException(true);
ScriptState* scriptState = ScriptState::current(isolate);
// During the frame teardown, there may not be a valid context.
if (ExecutionContext* context = scriptState->executionContext()) {
String errorMessage = toCoreStringWithNullCheck(message->Get());
TOSTRING_VOID(V8StringResource<>, sourceURL, message->GetScriptOrigin().ResourceName());
int scriptId = 0;
RefPtrWillBeRawPtr<ScriptCallStack> callStack = extractCallStack(isolate, message, &scriptId);
int lineNumber = 0;
int columnNumber = 0;
if (v8Call(message->GetLineNumber(scriptState->context()), lineNumber)
&& v8Call(message->GetStartColumn(scriptState->context()), columnNumber))
++columnNumber;
RefPtrWillBeRawPtr<ErrorEvent> event = ErrorEvent::create(errorMessage, sourceURL, lineNumber, columnNumber, &DOMWrapperWorld::current(isolate));
AccessControlStatus corsStatus = message->IsSharedCrossOrigin() ? SharableCrossOrigin : NotSharableCrossOrigin;
// If execution termination has been triggered as part of constructing
// the error event from the v8::Message, quietly leave.
if (!v8::V8::IsExecutionTerminating(isolate)) {
V8ErrorHandler::storeExceptionOnErrorEventWrapper(isolate, event.get(), data, scriptState->context()->Global());
context->reportException(event.release(), scriptId, callStack, corsStatus);
}
}
perIsolateData->setReportingException(false);
}
