Neos\FluidAdaptor\Core\ViewHelper\AbstractConditionViewHelper::renderThenChild PHP 메소드

    protected function renderThenChild()
    {
        if ($this->hasArgument('then')) {
            return $this->arguments['then'];
        }
        $elseViewHelperEncountered = false;
        foreach ($this->childNodes as $childNode) {
            if ($childNode instanceof ViewHelperNode && substr($childNode->getViewHelperClassName(), -14) === 'ThenViewHelper') {
                $data = $childNode->evaluate($this->renderingContext);
                return $data;
            }
            if ($childNode instanceof ViewHelperNode && substr($childNode->getViewHelperClassName(), -14) === 'ElseViewHelper') {
                $elseViewHelperEncountered = true;
            }
        }
        if ($elseViewHelperEncountered) {
            return '';
        } else {
            return $this->renderChildren();
        }
    }