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

    protected function renderElseChild()
    {
        if ($this->hasArgument('else')) {
            return $this->arguments['else'];
        }
        /** @var ViewHelperNode|NULL $elseNode */
        $elseNode = null;
        foreach ($this->childNodes as $childNode) {
            if ($childNode instanceof ViewHelperNode && substr($childNode->getViewHelperClassName(), -14) === 'ElseViewHelper') {
                $arguments = $childNode->getArguments();
                if (isset($arguments['if']) && $arguments['if']->evaluate($this->renderingContext)) {
                    return $childNode->evaluate($this->renderingContext);
                } else {
                    $elseNode = $childNode;
                }
            }
        }
        return $elseNode instanceof ViewHelperNode ? $elseNode->evaluate($this->renderingContext) : '';
    }