FileValidatorInterface.php

<?php

namespace Drupal\file\Validation;

use Drupal\file\FileInterface;
use Symfony\Component\Validator\ConstraintViolationListInterface;

/**
 * Provides a file validator that supports a list of validations.
 */
interface FileValidatorInterface {
    
    /**
     * Validates a File with a list of validators.
     *
     * @param \Drupal\file\FileInterface $file
     *   The file to validate.
     * @param array $validators
     *   An associative array of validators with:
     *   - key: the plugin ID of the file validation constraint.
     *   - value: an associative array of options to pass to the constraint.
     *
     * @return \Symfony\Component\Validator\ConstraintViolationListInterface
     *   The violations list.
     */
    public function validate(FileInterface $file, array $validators) : ConstraintViolationListInterface;

}