<?php

/*

 * This file is part of the Symfony package.

 *

 * (c) Fabien Potencier <fabien@symfony.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Symfony\Component\CssSelector\Node;

/**

 * ClassNode represents a "selector.className" node.

 *

 * This component is a port of the Python lxml library,

 * which is copyright Infrae and distributed under the BSD license.

 *

 * @author Fabien Potencier <fabien@symfony.com>

 */

interface NodeInterface

{

    /**

     * Returns a string representation of the object.

     *

     * @return string The string representation

     */

    function __toString();

    /**

     * @return XPathExpr The XPath expression

     *

     * @throws ParseException When unknown operator is found

     */

    function toXpath();

}