FluidTYPO3\Vhs\ViewHelpers\Menu\AbstractMenuViewHelper::renderContent PHP Метод

    public function renderContent(array $menu)
    {
        $deferredRendering = (bool) $this->arguments['deferred'];
        if (0 === count($menu) && false === $deferredRendering) {
            return null;
        }
        if (true === $deferredRendering) {
            $tagContent = $this->autoRender($menu);
            $this->tag->setContent($tagContent);
            $deferredContent = $this->tag->render();
            $this->viewHelperVariableContainer->addOrUpdate('FluidTYPO3\\Vhs\\ViewHelpers\\Menu\\AbstractMenuViewHelper', 'deferredString', $deferredContent);
            $this->viewHelperVariableContainer->addOrUpdate('FluidTYPO3\\Vhs\\ViewHelpers\\Menu\\AbstractMenuViewHelper', 'deferredArray', $menu);
            $output = $this->renderChildren();
            $this->unsetDeferredVariableStorage();
        } else {
            $content = $this->renderChildren();
            if (0 < strlen(trim($content))) {
                $output = $content;
            } elseif ((bool) $this->arguments['hideIfEmpty'] === true) {
                $output = '';
            } else {
                $output = $this->renderTag($this->getWrappingTagName(), $this->autoRender($menu));
            }
        }
        return $output;
    }