1 files changed, 22 insertions, 0 deletions
diff --git a/dom/webidl/XPathExpression.webidl b/dom/webidl/XPathExpression.webidl
new file mode 100644
index 000000000..dd5835492
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+++ b/dom/webidl/XPathExpression.webidl
@@ -0,0 +1,22 @@
+/* -*- 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 {
+  // 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, unsigned short type, object? result);
+
+  // 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,
+                                  unsigned short type, object? result);
+};