Allows nested private properties nullation

[marcortola]

Allows nested private properties nullation by using PropertyAccessor and Reflection

[marcortola]

Another solution would consist of simplifying the implementation of Nullator, slightly modifying the Listener and making the Listener configuration more verbose (cascade mapping):

public function postLoad($object)
{
    $entity = get_class($object);

    if (empty($this->propertyMap[$entity])) {
        return;
    }

    $entries = $this->propertyMap[$entity];

    foreach ($entries as $property) {
        if ($this->isNull($object, $property)) {
            $this->setNull($object, $property);
        }

        $guessedChildEmbeddable = $this->getGuessedChildEmbeddable($object, $property);

        if (null !== $guessedChildEmbeddable && !empty($this->propertyMap[get_class($guessedChildEmbeddable)])) {
            $this->postLoad($guessedChildEmbeddable);

            return;
        }
   }
}

private function getGuessedChildEmbeddable($object, $property)
{
    try {
        $reflectionClass = new \ReflectionClass(get_class($object));
        $reflectionProperty = $reflectionClass->getProperty($property);
    } catch (\ReflectionException $exception) {
        return null;
    }

    $reflectionProperty->setAccessible(true);

    return $reflectionProperty->getValue($object);
}

public function setNull(&$object, $property): void
{
    try {
        $this->propertyAccessor->setValue($object, $property, null);
    } catch (NoSuchPropertyException $exception) {
        $this->closureNullator->setNull($object, $property);
    }
}

$listener = NullableEmbeddableListenerFactory::createWithPropertyAccessorReflectionNullator();
$listener->addMapping('App\Domain\User\Model\UserProfile', 'fiscalData');
$listener->addMapping('App\Domain\Taxation\Model\FiscalData', 'address');

// Instead of
$listener = NullableEmbeddableListenerFactory::createWithPropertyAccessorReflectionNullator();
$listener->addMapping('App\Domain\User\Model\UserProfile', 'fiscalData.address');