v8::Local<v8::Value> V8Proxy::instrumentedCallFunction(Frame* frame, v8::Handle<v8::Function> function, v8::Handle<v8::Object> receiver, int argc, v8::Handle<v8::Value> args[])
{
V8GCController::checkMemoryUsage();
if (V8RecursionScope::recursionLevel() >= kMaxRecursionDepth)
return handleMaxRecursionDepthExceeded();
ScriptExecutionContext* context = frame ? frame->document() : 0;
InspectorInstrumentationCookie cookie;
if (InspectorInstrumentation::hasFrontends() && context) {
String resourceName;
int lineNumber;
resourceInfo(function, resourceName, lineNumber);
cookie = InspectorInstrumentation::willCallFunction(context, resourceName, lineNumber);
}
v8::Local<v8::Value> result;
{
#if PLATFORM(CHROMIUM)
TRACE_EVENT1("v8", "v8.callFunction", "callsite", resourceString(function).utf8());
#endif
V8RecursionScope recursionScope(context);
result = function->Call(receiver, argc, args);
}
InspectorInstrumentation::didCallFunction(cookie);
if (v8::V8::IsDead())
handleFatalErrorInV8();
return result;
}
v8::Local<v8::Value> ScriptController::callFunctionWithInstrumentation(ScriptExecutionContext* context, v8::Handle<v8::Function> function, v8::Handle<v8::Object> receiver, int argc, v8::Handle<v8::Value> args[])
{
V8GCController::checkMemoryUsage();
if (V8RecursionScope::recursionLevel() >= kMaxRecursionDepth)
return handleMaxRecursionDepthExceeded();
InspectorInstrumentationCookie cookie;
if (InspectorInstrumentation::timelineAgentEnabled(context)) {
String resourceName;
int lineNumber;
resourceInfo(function, resourceName, lineNumber);
cookie = InspectorInstrumentation::willCallFunction(context, resourceName, lineNumber);
}
v8::Local<v8::Value> result;
{
TRACE_EVENT1("v8", "v8.callFunction", "callsite", resourceString(function).utf8());
V8RecursionScope recursionScope(context);
result = function->Call(receiver, argc, args);
}
InspectorInstrumentation::didCallFunction(cookie);
crashIfV8IsDead();
return result;
}
v8::Local<v8::Value> V8Proxy::callFunction(v8::Handle<v8::Function> function, v8::Handle<v8::Object> receiver, int argc, v8::Handle<v8::Value> args[])
{
#ifdef ANDROID_INSTRUMENT
android::TimeCounter::start(android::TimeCounter::JavaScriptExecuteTimeCounter);
#endif
// For now, we don't put any artificial limitations on the depth
// of recursion that stems from calling functions. This is in
// contrast to the script evaluations.
v8::Local<v8::Value> result;
{
V8ConsoleMessage::Scope scope;
// Evaluating the JavaScript could cause the frame to be deallocated,
// so we start the keep alive timer here.
// Frame::keepAlive method adds the ref count of the frame and sets a
// timer to decrease the ref count. It assumes that the current JavaScript
// execution finishs before firing the timer.
m_frame->keepAlive();
result = function->Call(receiver, argc, args);
}
if (v8::V8::IsDead())
handleFatalErrorInV8();
#ifdef ANDROID_INSTRUMENT
android::TimeCounter::record(android::TimeCounter::JavaScriptExecuteTimeCounter, __FUNCTION__);
#endif
return result;
}
inline void call_js_function(
v8::Handle<v8::Function> const& function,
v8::Handle<v8::Object> const& self)
{
v8::Handle<v8::Value> args[] = {};
function->Call(self, 0, args);
}
void QV8Include::callback(QV8Engine *engine, v8::Handle<v8::Function> callback, v8::Handle<v8::Object> status)
{
if (!callback.IsEmpty()) {
v8::Handle<v8::Value> args[] = { status };
v8::TryCatch tc;
callback->Call(engine->global(), 1, args);
}
}
inline void call_js_function(
v8::Handle<v8::Function> const& function,
v8::Handle<v8::Object> const& self,
A0 const& arg0)
{
v8::Handle<v8::Value> args[] = {to_value_handle(arg0)};
function->Call(self, 1, args);
}
v8::Local<v8::Value> V8ScriptRunner::callInternalFunction(v8::Handle<v8::Function> function, v8::Handle<v8::Value> receiver, int argc, v8::Handle<v8::Value> args[], v8::Isolate* isolate)
{
TRACE_EVENT0("v8", "v8.callFunction");
TRACE_EVENT_SCOPED_SAMPLING_STATE("V8", "V8Execution");
V8RecursionScope::MicrotaskSuppression recursionScope(isolate);
v8::Local<v8::Value> result = function->Call(receiver, argc, args);
crashIfV8IsDead();
return result;
}
v8::Handle<v8::Value> ScriptEnv::CallScriptFunc(v8::Handle<v8::Function> handle, const int argc, v8::Handle<v8::Value>* argv)
{
v8::HandleScope current_scope;
v8::Context::Scope context_scope(mContext);
v8::Handle<v8::Value> val = handle->Call(mContext->Global(), argc, argv);
return current_scope.Close(val);
}
void js_fork( v8::Handle<v8::Function> f )
{
pid_t p = ::fork();
if( p ) return;
else
{
f->Call( f, 0, NULL );
exit(0);
}
}
v8::Local<v8::Value> V8Proxy::callFunctionWithoutFrame(v8::Handle<v8::Function> function, v8::Handle<v8::Object> receiver, int argc, v8::Handle<v8::Value> args[])
{
V8GCController::checkMemoryUsage();
v8::Local<v8::Value> result = function->Call(receiver, argc, args);
if (v8::V8::IsDead())
handleFatalErrorInV8();
return result;
}
void TNodeJsUtil::ExecuteVoid(const v8::Handle<v8::Function>& Fun) {
v8::Isolate* Isolate = v8::Isolate::GetCurrent();
v8::HandleScope HandleScope(Isolate);
v8::TryCatch TryCatch;
Fun->Call(Isolate->GetCurrentContext()->Global(), 0, nullptr);
if (TryCatch.HasCaught()) {
v8::String::Utf8Value Msg(TryCatch.Message()->Get());
throw TExcept::New("Exception while executin JSON: " + TStr(*Msg));
}
}
void TNodeJsUtil::ExecuteVoid(const v8::Handle<v8::Function>& Fun, const int& ArgC,
v8::Handle<v8::Value> ArgV[]) {
v8::Isolate* Isolate = v8::Isolate::GetCurrent();
v8::HandleScope HandleScope(Isolate);
v8::TryCatch TryCatch;
Fun->Call(Isolate->GetCurrentContext()->Global(), ArgC, ArgV);
if (TryCatch.HasCaught()) {
TryCatch.ReThrow();
return;
}
}
v8::Local<v8::Value> V8Proxy::callFunction(v8::Handle<v8::Function> function, v8::Handle<v8::Object> receiver, int argc, v8::Handle<v8::Value> args[])
{
/// M: add for systrace
TRACE_METHOD()
V8GCController::checkMemoryUsage();
v8::Local<v8::Value> result;
{
if (m_recursion >= kMaxRecursionDepth) {
v8::Local<v8::String> code = v8::String::New("throw new RangeError('Maximum call stack size exceeded.')");
if (code.IsEmpty())
return result;
v8::Local<v8::Script> script = v8::Script::Compile(code);
if (script.IsEmpty())
return result;
script->Run();
return result;
}
// Evaluating the JavaScript could cause the frame to be deallocated,
// so we start the keep alive timer here.
// Frame::keepAlive method adds the ref count of the frame and sets a
// timer to decrease the ref count. It assumes that the current JavaScript
// execution finishs before firing the timer.
m_frame->keepAlive();
InspectorInstrumentationCookie cookie;
if (InspectorInstrumentation::hasFrontends()) {
v8::ScriptOrigin origin = function->GetScriptOrigin();
String resourceName("undefined");
int lineNumber = 1;
if (!origin.ResourceName().IsEmpty()) {
resourceName = toWebCoreString(origin.ResourceName());
lineNumber = function->GetScriptLineNumber() + 1;
}
cookie = InspectorInstrumentation::willCallFunction(m_frame, resourceName, lineNumber);
}
m_recursion++;
result = function->Call(receiver, argc, args);
m_recursion--;
InspectorInstrumentation::didCallFunction(cookie);
}
// Release the storage mutex if applicable.
didLeaveScriptContext();
if (v8::V8::IsDead())
handleFatalErrorInV8();
return result;
}
v8::Handle<v8::Value> call_v8(v8::Isolate* isolate, v8::Handle<v8::Function> func,
v8::Handle<v8::Value> recv, Args... args)
{
v8::EscapableHandleScope scope(isolate);
int const arg_count = sizeof...(Args);
// +1 to allocate array for arg_count == 0
v8::Handle<v8::Value> v8_args[arg_count + 1] = { to_v8(isolate, args)... };
v8::Local<v8::Value> result = func->Call(recv, arg_count, v8_args);
return scope.Escape(result);
}
PJsonVal TNodeJsUtil::ExecuteJson(const v8::Handle<v8::Function>& Fun,
const v8::Local<v8::Object>& Arg1, const v8::Local<v8::Object>& Arg2) {
v8::Isolate* Isolate = v8::Isolate::GetCurrent();
v8::HandleScope HandleScope(Isolate);
v8::TryCatch TryCatch;
const int ArgC = 2;
v8::Handle<v8::Value> ArgV[ArgC] = { Arg1, Arg2 };
v8::Handle<v8::Value> RetVal = Fun->Call(Isolate->GetCurrentContext()->Global(), 2, ArgV);
if (TryCatch.HasCaught()) {
v8::String::Utf8Value Msg(TryCatch.Message()->Get());
throw TExcept::New("Exception while executin JSON: " + TStr(*Msg));
}
return GetObjJson(RetVal);
}
double TNodeJsUtil::ExecuteFlt(const v8::Handle<v8::Function>& Fun, const v8::Local<v8::Object>& Arg) {
v8::Isolate* Isolate = v8::Isolate::GetCurrent();
v8::HandleScope HandleScope(Isolate);
v8::Handle<v8::Value> Argv[1] = { Arg };
v8::TryCatch TryCatch;
v8::Handle<v8::Value> RetVal = Fun->Call(Isolate->GetCurrentContext()->Global(), 1, Argv);
if (TryCatch.HasCaught()) {
TryCatch.ReThrow();
return 0;
}
EAssertR(RetVal->IsNumber(), "Return type expected to be number");
return RetVal->NumberValue();
}
v8::Local<v8::Value> V8ScriptRunner::callFunction(v8::Handle<v8::Function> function, ExecutionContext* context, v8::Handle<v8::Value> receiver, int argc, v8::Handle<v8::Value> args[], v8::Isolate* isolate)
{
TRACE_EVENT0("v8", "v8.callFunction");
TRACE_EVENT_SCOPED_SAMPLING_STATE("V8", "V8Execution");
if (V8RecursionScope::recursionLevel(isolate) >= kMaxRecursionDepth)
return handleMaxRecursionDepthExceeded(isolate);
RELEASE_ASSERT(!context->isIteratingOverObservers());
V8RecursionScope recursionScope(isolate, context);
v8::Local<v8::Value> result = function->Call(receiver, argc, args);
crashIfV8IsDead();
return result;
}
void TNodeJsUtil::ExecuteErr(const v8::Handle<v8::Function>& Fun, const PExcept& Except) {
v8::Isolate* Isolate = v8::Isolate::GetCurrent();
v8::HandleScope HandleScope(Isolate);
v8::TryCatch TryCatch;
const TStr& Msg = Except->GetMsgStr();
v8::Local<v8::String> V8Msg = v8::String::NewFromUtf8(Isolate, Msg.CStr());
v8::Local<v8::Value> Err = v8::Exception::Error(V8Msg);
const int ArgC = 1;
v8::Handle<v8::Value> ArgV[ArgC] = { Err };
Fun->Call(Isolate->GetCurrentContext()->Global(), ArgC, ArgV);
if (TryCatch.HasCaught()) {
v8::String::Utf8Value Msg(TryCatch.Message()->Get());
throw TExcept::New("Exception while executin JSON: " + TStr(*Msg));
}
}
v8::Local<v8::Value> V8Proxy::callFunction(v8::Handle<v8::Function> function, v8::Handle<v8::Object> receiver, int argc, v8::Handle<v8::Value> args[])
{
#ifdef ANDROID_INSTRUMENT
android::TimeCounter::start(android::TimeCounter::JavaScriptExecuteTimeCounter);
#endif
V8GCController::checkMemoryUsage();
v8::Local<v8::Value> result;
{
V8ConsoleMessage::Scope scope;
if (m_recursion >= kMaxRecursionDepth) {
v8::Local<v8::String> code = v8::String::New("throw new RangeError('Maximum call stack size exceeded.')");
if (code.IsEmpty())
return result;
v8::Local<v8::Script> script = v8::Script::Compile(code);
if (script.IsEmpty())
return result;
script->Run();
return result;
}
// Evaluating the JavaScript could cause the frame to be deallocated,
// so we start the keep alive timer here.
// Frame::keepAlive method adds the ref count of the frame and sets a
// timer to decrease the ref count. It assumes that the current JavaScript
// execution finishs before firing the timer.
m_frame->keepAlive();
m_recursion++;
result = function->Call(receiver, argc, args);
m_recursion--;
}
// Release the storage mutex if applicable.
releaseStorageMutex();
if (v8::V8::IsDead())
handleFatalErrorInV8();
#ifdef ANDROID_INSTRUMENT
android::TimeCounter::record(android::TimeCounter::JavaScriptExecuteTimeCounter, __FUNCTION__);
#endif
return result;
}
v8::Local<v8::Value> V8Proxy::instrumentedCallFunction(Frame* frame, v8::Handle<v8::Function> function, v8::Handle<v8::Object> receiver, int argc, v8::Handle<v8::Value> args[])
{
V8GCController::checkMemoryUsage();
if (V8RecursionScope::recursionLevel() >= kMaxRecursionDepth)
return handleMaxRecursionDepthExceeded();
ScriptExecutionContext* context = frame ? frame->document() : 0;
InspectorInstrumentationCookie cookie;
if (InspectorInstrumentation::hasFrontends() && context) {
String resourceName("undefined");
int lineNumber = 1;
v8::ScriptOrigin origin = function->GetScriptOrigin();
if (!origin.ResourceName().IsEmpty()) {
resourceName = toWebCoreString(origin.ResourceName());
lineNumber = function->GetScriptLineNumber() + 1;
}
cookie = InspectorInstrumentation::willCallFunction(context, resourceName, lineNumber);
}
v8::Local<v8::Value> result;
{
#if PLATFORM(CHROMIUM)
TRACE_EVENT0("v8", "v8.callFunction");
#endif
V8RecursionScope recursionScope(context);
result = function->Call(receiver, argc, args);
}
InspectorInstrumentation::didCallFunction(cookie);
if (v8::V8::IsDead())
handleFatalErrorInV8();
return result;
}
v8::Local<v8::Value> V8Proxy::callFunction(v8::Handle<v8::Function> function, v8::Handle<v8::Object> receiver, int argc, v8::Handle<v8::Value> args[])
{
V8GCController::checkMemoryUsage();
v8::Local<v8::Value> result;
{
V8ConsoleMessage::Scope scope;
if (m_recursion >= kMaxRecursionDepth) {
v8::Local<v8::String> code = v8::String::New("throw new RangeError('Maximum call stack size exceeded.')");
if (code.IsEmpty())
return result;
v8::Local<v8::Script> script = v8::Script::Compile(code);
if (script.IsEmpty())
return result;
script->Run();
return result;
}
// Evaluating the JavaScript could cause the frame to be deallocated,
// so we start the keep alive timer here.
// Frame::keepAlive method adds the ref count of the frame and sets a
// timer to decrease the ref count. It assumes that the current JavaScript
// execution finishs before firing the timer.
m_frame->keepAlive();
#if ENABLE(INSPECTOR)
Page* inspectedPage = InspectorTimelineAgent::instanceCount() ? m_frame->page(): 0;
if (inspectedPage) {
if (InspectorTimelineAgent* timelineAgent = inspectedPage->inspectorTimelineAgent()) {
v8::ScriptOrigin origin = function->GetScriptOrigin();
String resourceName("undefined");
int lineNumber = 1;
if (!origin.ResourceName().IsEmpty()) {
resourceName = toWebCoreString(origin.ResourceName());
lineNumber = function->GetScriptLineNumber() + 1;
}
timelineAgent->willCallFunction(resourceName, lineNumber);
} else
inspectedPage = 0;
}
#endif // !ENABLE(INSPECTOR)
m_recursion++;
result = function->Call(receiver, argc, args);
m_recursion--;
#if ENABLE(INSPECTOR)
if (inspectedPage)
if (InspectorTimelineAgent* timelineAgent = inspectedPage->inspectorTimelineAgent())
timelineAgent->didCallFunction();
#endif // !ENABLE(INSPECTOR)
}
// Release the storage mutex if applicable.
didLeaveScriptContext();
if (v8::V8::IsDead())
handleFatalErrorInV8();
return result;
}
v8::Local<v8::Value>
QQmlJavaScriptExpression::evaluate(QQmlContextData *context,
v8::Handle<v8::Function> function,
int argc, v8::Handle<v8::Value> args[],
bool *isUndefined)
{
Q_ASSERT(context && context->engine);
if (function.IsEmpty() || function->IsUndefined()) {
if (isUndefined) *isUndefined = true;
return v8::Local<v8::Value>();
}
QQmlEnginePrivate *ep = QQmlEnginePrivate::get(context->engine);
Q_ASSERT(notifyOnValueChanged() || activeGuards.isEmpty());
GuardCapture capture(context->engine, this);
QQmlEnginePrivate::PropertyCapture *lastPropertyCapture = ep->propertyCapture;
ep->propertyCapture = notifyOnValueChanged()?&capture:0;
if (notifyOnValueChanged())
capture.guards.copyAndClearPrepend(activeGuards);
QQmlContextData *lastSharedContext = 0;
QObject *lastSharedScope = 0;
bool sharedContext = useSharedContext();
// All code that follows must check with watcher before it accesses data members
// incase we have been deleted.
DeleteWatcher watcher(this);
if (sharedContext) {
lastSharedContext = ep->sharedContext;
lastSharedScope = ep->sharedScope;
ep->sharedContext = context;
ep->sharedScope = scopeObject();
}
v8::Local<v8::Value> result;
{
v8::TryCatch try_catch;
v8::Handle<v8::Object> This = ep->v8engine()->global();
if (scopeObject() && requiresThisObject()) {
v8::Handle<v8::Value> value = ep->v8engine()->newQObject(scopeObject());
if (value->IsObject()) This = v8::Handle<v8::Object>::Cast(value);
}
result = function->Call(This, argc, args);
if (isUndefined)
*isUndefined = try_catch.HasCaught() || result->IsUndefined();
if (watcher.wasDeleted()) {
} else if (try_catch.HasCaught()) {
v8::Context::Scope scope(ep->v8engine()->context());
v8::Local<v8::Message> message = try_catch.Message();
if (!message.IsEmpty()) {
delayedError()->setMessage(message);
} else {
if (hasDelayedError()) delayedError()->clearError();
}
} else {
if (hasDelayedError()) delayedError()->clearError();
}
}
if (sharedContext) {
ep->sharedContext = lastSharedContext;
ep->sharedScope = lastSharedScope;
}
if (capture.errorString) {
for (int ii = 0; ii < capture.errorString->count(); ++ii)
qWarning("%s", qPrintable(capture.errorString->at(ii)));
delete capture.errorString;
capture.errorString = 0;
}
while (Guard *g = capture.guards.takeFirst())
g->Delete();
ep->propertyCapture = lastPropertyCapture;
return result;
}
