static inline void resourceInfo(const v8::Handle<v8::Function> function, String& resourceName, int& lineNumber)
{
    v8::ScriptOrigin origin = function->GetScriptOrigin();
    if (origin.ResourceName().IsEmpty()) {
        resourceName = "undefined";
        lineNumber = 1;
    } else {
        resourceName = toWebCoreString(origin.ResourceName());
        lineNumber = function->GetScriptLineNumber() + 1;
    }
}
示例#2
0
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;
}
示例#3
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static bool resourceInfo(const v8::Handle<v8::Function> function, String& resourceName, int& lineNumber)
{
    v8::ScriptOrigin origin = function->GetScriptOrigin();
    if (origin.ResourceName().IsEmpty()) {
        resourceName = "undefined";
        lineNumber = 1;
    } else {
        V8TRYCATCH_FOR_V8STRINGRESOURCE_RETURN(V8StringResource<>, stringResourceName, origin.ResourceName(), false);
        resourceName = stringResourceName;
        lineNumber = function->GetScriptLineNumber() + 1;
    }
    return true;
}
示例#4
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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;
}
示例#5
0
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;
}