* * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Validator\Constraints; use Symfony\Component\Validator\Constraint; use Symfony\Component\Validator\ConstraintValidator; use Symfony\Component\Validator\Exception\ConstraintDefinitionException; use Symfony\Component\Validator\Exception\UnexpectedTypeException; /** * Validator for Callback constraint. * * @author Bernhard Schussek */ class CallbackValidator extends ConstraintValidator { /** * {@inheritdoc} */ public function validate($object, Constraint $constraint) { if (!$constraint instanceof Callback) { throw new UnexpectedTypeException($constraint, Callback::class); } $method = $constraint->callback; if ($method instanceof \Closure) { $method($object, $this->context, $constraint->payload); } elseif (\is_array($method)) { if (!\is_callable($method)) { if (isset($method[0]) && \is_object($method[0])) { $method[0] = \get_class($method[0]); } throw new ConstraintDefinitionException(json_encode($method).' targeted by Callback constraint is not a valid callable.'); } $method($object, $this->context, $constraint->payload); } elseif (null !== $object) { if (!method_exists($object, $method)) { throw new ConstraintDefinitionException(sprintf('Method "%s" targeted by Callback constraint does not exist in class "%s".', $method, get_debug_type($object))); } $reflMethod = new \ReflectionMethod($object, $method); if ($reflMethod->isStatic()) { $reflMethod->invoke(null, $object, $this->context, $constraint->payload); } else { $reflMethod->invoke($object, $this->context, $constraint->payload); } } } }