From 6783bf0c322e01ce23669730e6b35b3bafdf85b1 Mon Sep 17 00:00:00 2001
From: "arseny.kapoulkine"
 <arseny.kapoulkine@99668b35-9821-0410-8761-19e4c4f06640>
Date: Sun, 8 Nov 2009 14:34:59 +0000
Subject: XPath: evaluate_node_set (and select_nodes/select_single_node) now
 throw exception if expression return type is not node set (instead of
 assertion)

git-svn-id: http://pugixml.googlecode.com/svn/trunk@223 99668b35-9821-0410-8761-19e4c4f06640
---
 src/pugixpath.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/pugixpath.cpp b/src/pugixpath.cpp
index 27a11d7..f2e051c 100644
--- a/src/pugixpath.cpp
+++ b/src/pugixpath.cpp
@@ -3679,6 +3679,7 @@ namespace pugi
 	xpath_node_set xpath_query::evaluate_node_set(const xml_node& n) const
 	{
 		if (!m_root) return xpath_node_set();
+		if (m_root->rettype() != ast_type_node_set) throw xpath_exception("Expression does not evaluate to node set");
 		
 		xpath_context c;
 		
-- 
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