gecko-dev/dom/webidl/XPathExpression.webidl

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/* -*- 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/.
*/
[Exposed=Window]
interface XPathExpression {
// The result specifies a specific result object which may be reused and
// returned by this method. If this is specified as null or it's not an
// XPathResult object, a new result object will be constructed and returned.
[Throws]
XPathResult evaluate(Node contextNode,
optional unsigned short type = 0 /* XPathResult.ANY_TYPE */,
optional object? result = null);
// The result specifies a specific result object which may be reused and
// returned by this method. If this is specified as null or it's not an
// XPathResult object, a new result object will be constructed and returned.
[Throws, ChromeOnly]
XPathResult evaluateWithContext(Node contextNode,
unsigned long contextPosition,
unsigned long contextSize,
optional unsigned short type = 0 /* XPathResult.ANY_TYPE */,
optional object? result = null);
};