*/ class Valid implements Validator { /** * @param Email $entity */ public function validate(Entity $entity, string $field, Data $data): ?Failure { if ($field === 'to') { $addresses = $entity->getToAddressList(); } else if ($field === 'cc') { $addresses = $entity->getCcAddressList(); } else if ($field === 'bcc') { $addresses = $entity->getBccAddressList(); } else { throw new LogicException(); } foreach ($addresses as $address) { if (!filter_var($address, FILTER_VALIDATE_EMAIL)) { return Failure::create(); } } return null; } }