1 <?php

     2 

     3 /*

     4  * This file is part of the Symfony package.

     5  *

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

     7  *

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

     9  * file that was distributed with this source code.

    10  */

    11 

    12 namespace Symfony\Component\Config\Definition\Builder;

    13 

    14 use Symfony\Component\Config\Definition\NodeInterface;

    15 use Symfony\Component\Config\Definition\VariableNode;

    16 

    17 /**

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

    19  *

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

    21  */

    22 class VariableNodeDefinition extends NodeDefinition

    23 {

    24     /**

    25      * Instantiate a Node

    26      *

    27      * @return VariableNode The node

    28      */

    29     protected function instantiateNode()

    30     {

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

    32     }

    33 

    34     /**

    35      * {@inheritDoc}

    36      */

    37     protected function createNode()

    38     {

    39         $node = $this->instantiateNode();

    40 

    41         if (null !== $this->normalization) {

    42             $node->setNormalizationClosures($this->normalization->before);

    43         }

    44 

    45         if (null !== $this->merge) {

    46             $node->setAllowOverwrite($this->merge->allowOverwrite);

    47         }

    48 

    49         if (true === $this->default) {

    50             $node->setDefaultValue($this->defaultValue);

    51         }

    52 

    53         if (false === $this->allowEmptyValue) {

    54             $node->setAllowEmptyValue($this->allowEmptyValue);

    55         }

    56 

    57         $node->addEquivalentValue(null, $this->nullEquivalent);

    58         $node->addEquivalentValue(true, $this->trueEquivalent);

    59         $node->addEquivalentValue(false, $this->falseEquivalent);

    60         $node->setRequired($this->required);

    61 

    62         if (null !== $this->validation) {

    63             $node->setFinalValidationClosures($this->validation->rules);

    64         }

    65 

    66         return $node;

    67     }

    68 

    69 }