FluidTYPO3\Vhs\ViewHelpers\Variable\ConvertViewHelper::renderStatic PHP Method

    public static function renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)
    {
        if (true === isset($arguments['value'])) {
            $value = $arguments['value'];
        } else {
            $value = $renderChildrenClosure();
        }
        $type = $arguments['type'];
        if (gettype($value) === $type) {
            return $value;
        }
        if (null !== $value) {
            if ('ObjectStorage' === $type && 'array' === gettype($value)) {
                /** @var ObjectManager $objectManager */
                $objectManager = GeneralUtility::makeInstance('TYPO3\\CMS\\Extbase\\Object\\ObjectManager');
                /** @var ObjectStorage $storage */
                $storage = $objectManager->get('TYPO3\\CMS\\Extbase\\Persistence\\ObjectStorage');
                foreach ($value as $item) {
                    $storage->attach($item);
                }
                $value = $storage;
            } elseif ('array' === $type && true === $value instanceof \Traversable) {
                $value = iterator_to_array($value, false);
            } elseif ('array' === $type) {
                $value = [$value];
            } else {
                settype($value, $type);
            }
        } else {
            if (true === isset($arguments['default'])) {
                $default = $arguments['default'];
                if (gettype($default) !== $type) {
                    throw new \RuntimeException('Supplied argument "default" is not of the type "' . $type . '"', 1364542576);
                }
                $value = $default;
            } else {
                switch ($type) {
                    case 'string':
                        $value = '';
                        break;
                    case 'integer':
                        $value = 0;
                        break;
                    case 'boolean':
                        $value = false;
                        break;
                    case 'float':
                        $value = 0.0;
                        break;
                    case 'array':
                        $value = [];
                        break;
                    case 'ObjectStorage':
                        $objectManager = GeneralUtility::makeInstance('TYPO3\\CMS\\Extbase\\Object\\ObjectManager');
                        $value = $objectManager->get('TYPO3\\CMS\\Extbase\\Persistence\\ObjectStorage');
                        break;
                    default:
                        throw new \RuntimeException('Provided argument "type" is not valid', 1364542884);
                }
            }
        }
        return $value;
    }