Edit File: ValidationBuilder.php
<?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; /** * This class builds validation conditions. * * @author Christophe Coevoet <stof@notk.org> */ class ValidationBuilder { protected $node; public $rules = []; public function __construct(NodeDefinition $node) { $this->node = $node; } /** * Registers a closure to run as normalization or an expression builder to build it if null is provided. * * @return ExprBuilder|$this */ public function rule(\Closure $closure = null) { if (null !== $closure) { $this->rules[] = $closure; return $this; } return $this->rules[] = new ExprBuilder($this->node); } }