/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/.
 */

interface XPathExpression;
interface XPathNSResolver;
interface XPathResult;

[Constructor]
interface XPathEvaluator {
  // Based on nsIDOMXPathEvaluator
  [NewObject, Throws]
  XPathExpression createExpression(DOMString expression,
                                   XPathNSResolver? resolver);
  [NewObject, Throws]
  XPathNSResolver createNSResolver(Node? nodeResolver);
  [Throws]
  XPathResult evaluate(DOMString expression, Node? contextNode,
                       XPathNSResolver? resolver, unsigned short type,
                       XPathResult? result);
};