35 lines
1.0 KiB
PHP
35 lines
1.0 KiB
PHP
<?php
|
|
|
|
/*
|
|
* This file is part of the Symfony package.
|
|
*
|
|
* (c) Fabien Potencier <fabien@symfony.com>
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
namespace Symfony\Component\Serializer\Normalizer;
|
|
|
|
trait ObjectToPopulateTrait
|
|
{
|
|
/**
|
|
* Extract the `object_to_populate` field from the context if it exists
|
|
* and is an instance of the provided $class.
|
|
*
|
|
* @param string $class The class the object should be
|
|
* @param string|null $key They in which to look for the object to populate.
|
|
* Keeps backwards compatibility with `AbstractNormalizer`.
|
|
*/
|
|
protected function extractObjectToPopulate(string $class, array $context, string $key = null): ?object
|
|
{
|
|
$key ??= AbstractNormalizer::OBJECT_TO_POPULATE;
|
|
|
|
if (isset($context[$key]) && \is_object($context[$key]) && $context[$key] instanceof $class) {
|
|
return $context[$key];
|
|
}
|
|
|
|
return null;
|
|
}
|
|
}
|