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\BooleanNode;
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 BooleanNodeDefinition extends ScalarNodeDefinition
22: {
23: /**
24: * {@inheritDoc}
25: */
26: public function __construct($name, NodeParentInterface $parent = null)
27: {
28: parent::__construct($name, $parent);
29:
30: $this->nullEquivalent = true;
31: }
32:
33: /**
34: * Instantiate a Node
35: *
36: * @return BooleanNode The node
37: */
38: protected function instantiateNode()
39: {
40: return new BooleanNode($this->name, $this->parent);
41: }
42:
43: }
44: