Closed
Description
Symfony version(s) affected
7.1
Description
I can serialize/deserialize associative arrays that are contained within object with no problem, by specifying an attribute with an appropriate PHPDoc type like: array<string, int>, but trying the same thing at the top level (i.e. passing it to the deserialize function directly) fails with a NotNormalizableValueException: Could not denormalize object of type "array<string,int>", no supporting normalizer found.
How to reproduce
<?php
declare(strict_types=1);
require_once './vendor/autoload.php';
use Symfony\Component\PropertyInfo\Extractor\PhpDocExtractor;
use Symfony\Component\PropertyInfo\PropertyInfoExtractor;
use Symfony\Component\Serializer\Encoder\JsonEncoder;
use Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactory;
use Symfony\Component\Serializer\Mapping\Loader\AttributeLoader;
use Symfony\Component\Serializer\Normalizer\ArrayDenormalizer;
use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
use Symfony\Component\Serializer\Serializer;
class MapObjValue
{
/**
* $json
*
* @var array<string, int>
*/
public ?array $json = null;
}
$phpDocExtractor = new PhpDocExtractor();
$propertyTypeExtractor = new PropertyInfoExtractor(
typeExtractors: [$phpDocExtractor],
);
$classMetadataFactory = new ClassMetadataFactory(new AttributeLoader());
$encoders = [new JsonEncoder()];
$normalizers = [
new ArrayDenormalizer(),
new ObjectNormalizer(propertyTypeExtractor: $propertyTypeExtractor, classMetadataFactory: $classMetadataFactory),
];
$serializer = new Serializer($normalizers, $encoders);
$response = $serializer->deserialize('{"json": {"foo": 1, "bar": 2}}', MapObjValue::class, 'json');
echo 'embedded in obj\n';
var_dump($response);
// Exception thrown here: Uncaught Symfony\Component\Serializer\Exception\NotNormalizableValueException: Could not denormalize object of type "array<string, int>", no supporting normalizer found.
$response2 = $serializer->deserialize('{"foo": 1, "bar": 2}', 'array<string, int>', 'json');
echo 'top level\n';
var_dump($response2);Possible Solution
No response
Additional Context
It seems like maybe the deserialize function doesn't accept phpdoc types directly and it will deserialize as expected if I specify an array as: int[]. However, I can't find any documentation on how you can specify the keyType using this syntax.