TypedDataAwareValidatorTrait.php

<?php

namespace Drupal\Core\TypedData\Validation;

use Drupal\Core\TypedData\TypedDataInterface;

/**
 * Defines a trait to access the typed data object of a validated value.
 *
 * The trait assumes to be used on classes extending
 * \Symfony\Component\Validator\ConstraintValidator.
 */
trait TypedDataAwareValidatorTrait {
    
    /**
     * Gets the typed data object for the validated value.
     *
     * @return \Drupal\Core\TypedData\TypedDataInterface
     *   The typed data object.
     */
    public function getTypedData() {
        $context = $this->context;
        
        /** @var \Symfony\Component\Validator\Context\ExecutionContextInterface $context */
        $data = $context->getObject();
        if (!$data instanceof TypedDataInterface) {
            throw new \LogicException("There is no Typed Data object available.");
        }
        return $data;
    }

}