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<?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 merge conditions.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class MergeBuilder
{
protected $node;
public $allowFalse = false;
public $allowOverwrite = true;
/**
* Constructor
*
* @param NodeDefinition $node The related node
*/
public function __construct(NodeDefinition $node)
{
$this->node = $node;
}
/**
* Sets whether the node can be unset.
*
* @param Boolean $allow
*
* @return MergeBuilder
*/
public function allowUnset($allow = true)
{
$this->allowFalse = $allow;
return $this;
}
/**
* Sets whether the node can be overwritten.
*
* @param Boolean $deny Whether the overwriting is forbidden or not
*
* @return MergeBuilder
*/
public function denyOverwrite($deny = true)
{
$this->allowOverwrite = !$deny;
return $this;
}
/**
* Returns the related node.
*
* @return NodeDefinition
*/
public function end()
{
return $this->node;
}
}