class LangcodeRequiredIfTranslatableValuesConstraintValidator

final class LangcodeRequiredIfTranslatableValuesConstraintValidator extends ConstraintValidator {
    
    /**
     * {@inheritdoc}
     */
    public function validate(mixed $value, Constraint $constraint) : void {
        assert($constraint instanceof LangcodeRequiredIfTranslatableValuesConstraint);
        $mapping = $this->context
            ->getObject();
        assert($mapping instanceof Mapping);
        $root = $this->context
            ->getRoot();
        if ($mapping !== $root) {
            @trigger_error(sprintf('The LangcodeRequiredIfTranslatableValues constraint can only be applied to the root object being validated, using the \'config_object\' schema type on \'%s\' is deprecated in drupal:10.3.0 and will trigger a \\LogicException in drupal:11.0.0. See https://www.drupal.org/node/3459863', $root->getName() . '::' . $mapping->getName()), E_USER_DEPRECATED);
            return;
        }
        assert(in_array('langcode', $mapping->getValidKeys(), TRUE));
        $is_translatable = $mapping->hasTranslatableElements();
        if ($is_translatable && !array_key_exists('langcode', $value)) {
            $this->context
                ->buildViolation($constraint->missingMessage)
                ->setParameter('@name', $mapping->getName())
                ->addViolation();
            return;
        }
        if (!$is_translatable && array_key_exists('langcode', $value)) {
            // @todo Convert this deprecation to an actual validation error in
            //   https://www.drupal.org/project/drupal/issues/3440238.
            // phpcs:ignore
            @trigger_error(str_replace('@name', $mapping->getName(), $constraint->superfluousMessage), E_USER_DEPRECATED);
        }
    }

}