On 7 févr. 08, at 13:17, Luc Heinrich wrote: > I don't know the libxml-ruby code well enough yet to propose a clean > fix (I'm not sure that simply testing for NULL on nodesetval would be > enough or appropriate), so if anyone could chime in... :)
After a bit of debugging, it seems that having the 'nodesetval' field of an 'xmlXPathObject' set to NULL is perfectly normal as far as libxml2 is concerned. If you have a look at xpath.c in the libxml2 sources, the 'xmlXPathNodeCollectAndTest' function explicitely calls 'xmlXPathCacheWrapNodeSet' with a NULL value, wich creates an 'xmlXPathObject' with a NULL 'nodesetval'. And that's exactly why the 'ruby_xml_xpath_object_mark' function crashes in my case. So it seems that simply checking for a NULL 'nodesetval' in 'ruby_xml_xpath_object_mark' actually makes sense after all. -- Luc Heinrich _______________________________________________ libxml-devel mailing list libxml-devel@rubyforge.org http://rubyforge.org/mailman/listinfo/libxml-devel
