WorkerInterface.php

<?php

/*
 * This file is part of the Assetic package, an OpenSky project.
 *
 * (c) 2010-2012 OpenSky Project Inc
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Assetic\Factory\Worker;

use Assetic\Asset\AssetInterface;

/**
 * Assets are passed through factory workers before leaving the factory.
 *
 * @author Kris Wallsmith <kris.wallsmith@gmail.com>
 */
interface WorkerInterface {

  /**
   * Processes an asset.
   *
   * @param AssetInterface $asset An asset
   *
   * @return AssetInterface|null May optionally return a replacement asset
   */
  public function process(AssetInterface $asset);

}