comparison vendor/symfony/validator/Mapping/TraversalStrategy.php @ 0:4c8ae668cc8c

Initial import (non-working)
author Chris Cannam
date Wed, 29 Nov 2017 16:09:58 +0000
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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\Validator\Mapping;
13
14 /**
15 * Specifies whether and how a traversable object should be traversed.
16 *
17 * If the node traverser traverses a node whose value is an instance of
18 * {@link \Traversable}, and if that node is either a class node or if
19 * cascading is enabled, then the node's traversal strategy will be checked.
20 * Depending on the requested traversal strategy, the node traverser will
21 * iterate over the object and cascade each object or collection returned by
22 * the iterator.
23 *
24 * The traversal strategy is ignored for arrays. Arrays are always iterated.
25 *
26 * @author Bernhard Schussek <bschussek@gmail.com>
27 *
28 * @see CascadingStrategy
29 */
30 class TraversalStrategy
31 {
32 /**
33 * Specifies that a node's value should be iterated only if it is an
34 * instance of {@link \Traversable}.
35 */
36 const IMPLICIT = 1;
37
38 /**
39 * Specifies that a node's value should never be iterated.
40 */
41 const NONE = 2;
42
43 /**
44 * Specifies that a node's value should always be iterated. If the value is
45 * not an instance of {@link \Traversable}, an exception should be thrown.
46 */
47 const TRAVERSE = 4;
48
49 /**
50 * Not instantiable.
51 */
52 private function __construct()
53 {
54 }
55 }