Example #1
0
v8::Local<v8::Value> V8Proxy::runScriptInternal(v8::Handle<v8::Script> script, bool isInlineCode)
#endif
{
    if (script.IsEmpty())
        return notHandledByInterceptor();

    V8GCController::checkMemoryUsage();
    // Compute the source string and prevent against infinite recursion.
    if (m_recursion >= kMaxRecursionDepth) {
        v8::Local<v8::String> code = v8ExternalString("throw RangeError('Recursion too deep')");
        // FIXME: Ideally, we should be able to re-use the origin of the
        // script passed to us as the argument instead of using an empty string
        // and 0 baseLine.
        script = compileScript(code, "", 0);
    }

    if (handleOutOfMemory())
        ASSERT(script.IsEmpty());

    if (script.IsEmpty())
        return notHandledByInterceptor();

    // Save the previous value of the inlineCode flag and update the flag for
    // the duration of the script invocation.
    bool previousInlineCode = inlineCode();
    setInlineCode(isInlineCode);

    // Run the script and keep track of the current recursion depth.
    v8::Local<v8::Value> result;
    {
        V8ConsoleMessage::Scope scope;

        // See comment in V8Proxy::callFunction.
        m_frame->keepAlive();

        m_recursion++;
        result = script->Run();
        m_recursion--;
    }

    // Release the storage mutex if applicable.
    releaseStorageMutex();

    if (handleOutOfMemory())
        ASSERT(result.IsEmpty());

    // Handle V8 internal error situation (Out-of-memory).
    if (result.IsEmpty())
        return notHandledByInterceptor();

    // Restore inlineCode flag.
    setInlineCode(previousInlineCode);

    if (v8::V8::IsDead())
        handleFatalErrorInV8();

    return result;
}
Example #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[])
{
#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;
}
Example #3
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.
    releaseStorageMutex();

    if (v8::V8::IsDead())
        handleFatalErrorInV8();

    return result;
}