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\VariableNode;
15: 
16: /**
17:  * This class provides a fluent interface for defining a node.
18:  *
19:  * @author Johannes M. Schmitt <schmittjoh@gmail.com>
20:  */
21: class VariableNodeDefinition extends NodeDefinition
22: {
23:     /**
24:      * Instantiate a Node
25:      *
26:      * @return VariableNode The node
27:      */
28:     protected function instantiateNode()
29:     {
30:         return new VariableNode($this->name, $this->parent);
31:     }
32: 
33:     /**
34:      * {@inheritDoc}
35:      */
36:     protected function createNode()
37:     {
38:         $node = $this->instantiateNode();
39: 
40:         if (null !== $this->normalization) {
41:             $node->setNormalizationClosures($this->normalization->before);
42:         }
43: 
44:         if (null !== $this->merge) {
45:             $node->setAllowOverwrite($this->merge->allowOverwrite);
46:         }
47: 
48:         if (true === $this->default) {
49:             $node->setDefaultValue($this->defaultValue);
50:         }
51: 
52:         if (false === $this->allowEmptyValue) {
53:             $node->setAllowEmptyValue($this->allowEmptyValue);
54:         }
55: 
56:         $node->addEquivalentValue(null, $this->nullEquivalent);
57:         $node->addEquivalentValue(true, $this->trueEquivalent);
58:         $node->addEquivalentValue(false, $this->falseEquivalent);
59:         $node->setRequired($this->required);
60: 
61:         if (null !== $this->validation) {
62:             $node->setFinalValidationClosures($this->validation->rules);
63:         }
64: 
65:         return $node;
66:     }
67: 
68: }
69: