denormalize enums

src/ServiceFactory/SlimServiceFactory.php

@@ -22,6 +22,7 @@
 use Symfony\Component\PropertyInfo\Extractor\ReflectionExtractor;
 use Symfony\Component\PropertyInfo\PropertyInfoExtractor;
 use Symfony\Component\Serializer\Normalizer\ArrayDenormalizer;
+use Symfony\Component\Serializer\Normalizer\BackedEnumNormalizer;
 use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
 use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
 use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
@@ -39,6 +40,7 @@ final class SlimServiceFactory implements ServiceFactory {
     public function __invoke(ServicesBuilder $builder): iterable {
         yield Serializer::class => static fn () => new Serializer([
             new ArrayDenormalizer(),
+            new BackedEnumNormalizer(),
             new ObjectNormalizer(
                 propertyTypeExtractor: new PropertyInfoExtractor(
                     typeExtractors: [

tests/Http/Serializer/DeserializeParameterResolverTest.php

@@ -27,6 +27,7 @@ public function testDeserialize(): void {
             'tag' => [
                 'name' => 'alpha',
             ],
+            'enum' => 'foo',
         ];
         $get = [
             'page' => 3,

tests/Http/Serializer/SampleEnum.php

@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace WonderNetwork\SlimKernel\Http\Serializer;
+
+enum SampleEnum: string {
+    case Foo = 'foo';
+}

tests/Http/Serializer/SamplePostInput.php

@@ -9,4 +9,5 @@ final class SamplePostInput {
     /** @var TagInput[] */
     public array $tags;
     public TagInput $tag;
+    public SampleEnum $enum;
 }