<?php

/*

 * This file is part of the Symfony package.

 *

 * (c) Fabien Potencier <fabien@symfony.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Symfony\Component\Config\Definition\Builder;

use Symfony\Component\Config\Definition\BooleanNode;

/**

 * This class provides a fluent interface for defining a node.

 *

 * @author Johannes M. Schmitt <schmittjoh@gmail.com>

 */

class BooleanNodeDefinition extends ScalarNodeDefinition

{

    /**

     * {@inheritDoc}

     */

    public function __construct($name, NodeParentInterface $parent = null)

    {

        parent::__construct($name, $parent);

        $this->nullEquivalent = true;

    }

    /**

     * Instantiate a Node

     *

     * @return BooleanNode The node

     */

    protected function instantiateNode()

    {

        return new BooleanNode($this->name, $this->parent);

    }

}