tattali / CalendarBundle

src/DependencyInjection/Configuration.php

<?php

declare(strict_types=1);

namespace CalendarBundle\DependencyInjection;

use Symfony\Component\Config\Definition\Builder\TreeBuilder;
use Symfony\Component\Config\Definition\ConfigurationInterface;

/**
 * This is the class that validates and merges configuration from your app/config files.
 *
 * To learn more see {@link https://symfony.com/doc/current/bundles/extension.html}
 */
class Configuration implements ConfigurationInterface
{
    /**
     * {@inheritdoc}
     */
    public function getConfigTreeBuilder(): TreeBuilder
    {
        $treeBuilder = new TreeBuilder('calendar');
        $rootNode = method_exists(TreeBuilder::class, 'getRootNode') ? $treeBuilder->getRootNode() : $treeBuilder->root('calendar');

The assignment to $rootNode is dead and can be removed.

The method root() does not exist on Symfony\Component\Config\Definition\Builder\TreeBuilder.

        return $treeBuilder;
    }
}