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ClassDiscriminatorFromClassMetadata example

                throw new InvalidArgumentException();
            }

            public function hasMetadataFor($value): bool
            {
                return AbstractDummy::class === $value;
            }
        };

        $discriminatorResolver = new ClassDiscriminatorFromClassMetadata($loaderMock);
        $serializer = new Serializer([new ObjectNormalizer(null, null, null, new PhpDocExtractor(), $discriminatorResolver)], ['json' => new JsonEncoder()]);

        $jsonData = '{"type":"first","quux":{"value":"quux"},"bar":"bar-value","foo":"foo-value"}';

        $deserialized = $serializer->deserialize($jsonData, AbstractDummy::class, 'json');
        $this->assertEquals($example, $deserialized);

        $serialized = $serializer->serialize($deserialized, 'json');
        $this->assertEquals($jsonData, $serialized);
    }

throw new InvalidArgumentException();
            }

            public function hasMetadataFor($value): bool
            {
                return AbstractDummyValue::class === $value;
            }
        };

        $factory = new ClassMetadataFactory(new AnnotationLoader());
        $normalizer = new ObjectNormalizer($factory, null, null, new PhpDocExtractor(), new ClassDiscriminatorFromClassMetadata($loaderMock));
        $serializer = new Serializer([$normalizer, new ArrayDenormalizer()]);
        $normalizer->setSerializer($serializer);

        return $serializer;
    }
}

abstract class AbstractDummyValue
{
    public $value;
}

array $defaultContext = [],
    ) {
        parent::__construct($classMetadataFactory, $nameConverter, $defaultContext);

        if (isset($this->defaultContext[self::MAX_DEPTH_HANDLER]) && !\is_callable($this->defaultContext[self::MAX_DEPTH_HANDLER])) {
            throw new InvalidArgumentException(sprintf('The "%s" given in the default context is not callable.', self::MAX_DEPTH_HANDLER));
        }

        $this->defaultContext[self::EXCLUDE_FROM_CACHE_KEY] = array_merge($this->defaultContext[self::EXCLUDE_FROM_CACHE_KEY] ?? [], [self::CIRCULAR_REFERENCE_LIMIT_COUNTERS]);

        if ($classMetadataFactory) {
            $classDiscriminatorResolver ??= new ClassDiscriminatorFromClassMetadata($classMetadataFactory);
        }
        $this->classDiscriminatorResolver = $classDiscriminatorResolver;
        $this->objectClassResolver = ($objectClassResolver ?? 'get_class')(...);
    }

    /** * @param array $context * * @return bool */
    public function supportsNormalization(mixed $data, string $format = null /* , array $context = [] */)
    {

                throw new InvalidArgumentException();
            }

            public function hasMetadataFor($value): bool
            {
                return AbstractDummy::class === $value;
            }
        };

        $discriminatorResolver = new ClassDiscriminatorFromClassMetadata($loaderMock);
        $normalizer = new AbstractObjectNormalizerDummy($factory, null, new PhpDocExtractor(), $discriminatorResolver);
        $serializer = new Serializer([$normalizer]);
        $normalizer->setSerializer($serializer);
        $normalizedData = $normalizer->denormalize(['foo' => 'foo', 'baz' => 'baz', 'quux' => ['value' => 'quux'], 'type' => 'second'], AbstractDummy::class);

        $this->assertInstanceOf(DummySecondChildQuux::class, $normalizedData->quux);
    }

    public function testDenormalizeWithDiscriminatorMapAndObjectToPopulateUsesCorrectClassname()
    {
        $factory = new ClassMetadataFactory(new AnnotationLoader());