Extbase MVC Framework

Hi Team,

Does it make sense that in Extbase and Fluid extensions have in TYPO3 4.6-beta1 some lines as:

@return \F3\FLOW3\MVC\Controller\MvcPropertyMappingConfiguration

or

protected function getMappingResultsForProperty() {
        if (!$this->isObjectAccessorMode()) {
            return new \F3\FLOW3\Error\Result();
        }
        $originalRequestMappingResults = $this->controllerContext->getRequest()->getOriginalRequestMappingResults();
        $formObjectName = $this->viewHelperVariableContainer->get('Tx_Fluid_ViewHelpers_FormViewHelper', 'formObjectName');

        return $originalRequestMappingResults->forProperty($formObjectName)->forProperty($this->arguments['property']);
    }

??