Symfony version(s) affected

7.3

Description

the 7.3 ObjectMapper component cannot handle objects like doctrine proxies reliably, specificially the
ObjectMapper::getSourceReflectionClass(object $source, \ReflectionClass $targetRefl): \ReflectionClass will reflect the proxy itself and not the underlying entity and its properties

It will fail with an error like

Symfony\Component\PropertyAccess\Exception\NoSuchPropertyException: Can't get a way to read the property "identifier" in class "Proxies\__CG__\App\Entity\Foo".

(Only checked with < PHP 8.4, its not using the php internal proxy objects)

How to reproduce

I created an Reproducer

https://github.com/tandev/doctrine_proxy_object_mapper_reproducer/blob/main/tests/DoctrineProxyMappingTest.php

 public function test(): void
    {
        $objectMapper = new ObjectMapper(new ReflectionObjectMapperMetadataFactory(),
            new PropertyAccessor(),
        );

        $foo = new Foo();
        $foo->setName('bar');

        $fooDto = $objectMapper->map($foo, FooDto::class);
        self::assertInstanceOf(FooDto::class, $fooDto);

// works

        $this->entityManager->persist($foo);
        $this->entityManager->flush();

        $proxy = $this->entityManager->getProxyFactory()->getProxy(Foo::class, ['id' => 1])->setName('bar');

        $fooDto = $objectMapper->map($proxy, FooDto::class);
        self::assertInstanceOf(FooDto::class, $fooDto);

//fails
    }

fails with

1) App\Tests\DoctrineProxyMappingTest::test
Symfony\Component\PropertyAccess\Exception\NoSuchPropertyException: Can't get a way to read the property "identifier" in class "Proxies\__CG__\App\Entity\Foo".

Possible Solution

Look at parent reflection

like for example some component like PropertyNormalizer does to be able to handle that

https://github.com/symfony/symfony/blob/7.4/src/Symfony/Component/Serializer/Normalizer/PropertyNormalizer.php#L190

The following commit i made might be a possible fix.

I failed to create an appropriate test case due to not understanding how the proxy object hinders reflection

3ef6365

Additional Context

No response