annotate vendor/symfony/serializer/Normalizer/ObjectToPopulateTrait.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents 129ea1e6d783
children
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Chris@14 1 <?php
Chris@14 2
Chris@14 3 /*
Chris@14 4 * This file is part of the Symfony package.
Chris@14 5 *
Chris@14 6 * (c) Fabien Potencier <fabien@symfony.com>
Chris@14 7 *
Chris@14 8 * For the full copyright and license information, please view the LICENSE
Chris@14 9 * file that was distributed with this source code.
Chris@14 10 */
Chris@14 11
Chris@14 12 namespace Symfony\Component\Serializer\Normalizer;
Chris@14 13
Chris@14 14 trait ObjectToPopulateTrait
Chris@14 15 {
Chris@14 16 /**
Chris@14 17 * Extract the `object_to_populate` field from the context if it exists
Chris@14 18 * and is an instance of the provided $class.
Chris@14 19 *
Chris@14 20 * @param string $class The class the object should be
Chris@14 21 * @param $context The denormalization context
Chris@14 22 * @param string $key They in which to look for the object to populate.
Chris@14 23 * Keeps backwards compatibility with `AbstractNormalizer`.
Chris@14 24 *
Chris@14 25 * @return object|null an object if things check out, null otherwise
Chris@14 26 */
Chris@14 27 protected function extractObjectToPopulate($class, array $context, $key = null)
Chris@14 28 {
Chris@14 29 $key = $key ?: 'object_to_populate';
Chris@14 30
Chris@17 31 if (isset($context[$key]) && \is_object($context[$key]) && $context[$key] instanceof $class) {
Chris@14 32 return $context[$key];
Chris@14 33 }
Chris@14 34
Chris@14 35 return null;
Chris@14 36 }
Chris@14 37 }