*
     * @return void
     */
    public function handleShutdown()
    {
        // If we reached this step, we are in shutdown handler.
        // An exception thrown in a shutdown handler will not be propagated
        // to the exception handler. Pass that information along.
        $this->canThrowExceptions = false;
 
        $error = $this->system->getLastError();
        if ($error && Misc::isLevelFatal($error['type'])) {
            // If there was a fatal error,
            // it was not handled in handleError yet.
            $this->allowQuit = false;
            $this->handleError(
                $error['type'],
                $error['message'],
                $error['file'],
                $error['line']
            );
        }
    }
 
 
    /**
     * @param InspectorFactoryInterface $factory
     *
     * @return void
     */
    public function setInspectorFactory(InspectorFactoryInterface $factory)
    {
        $this->inspectorFactory = $factory;
    }
 
    public function addFrameFilter($filterCallback)
    {
        if (!is_callable($filterCallback)) {
            throw new \InvalidArgumentException(sprintf(
                "A frame filter must be of type callable, %s type given.", 

        }
 
        // Propagate error to the next handler.
        if ($this->platformExceptionHandler) {
            call_user_func_array($this->platformExceptionHandler, [&$exception]);
        }
    }
 
    /**
     * Special case to deal with Fatal errors and the like.
     */
    public function handleShutdown()
    {
        $handler = $this->whoopsShutdownHandler;
 
        $error = $this->getLastError();
 
        // Ignore core warnings and errors.
        if ($error && !($error['type'] & (E_CORE_WARNING | E_CORE_ERROR))) {
            $handler();
        }
    }
}