Saxon

Legacy ID: #3279710 Legacy Poster: Michael Kay (mhkay)

Could you please supply a copy of the source document that triggered this error? (My suspicion is that it's something to do with the new "parent pointers" introduced into the TinyTree for performance reasons). Thanks, Michael Kay

Legacy ID: #3279735 Legacy Poster: marcvc (marcvc)

Michael, actually, I don't have a foo.xml document. The exception is thrown statically. I see the following stack trace: java.lang.IllegalArgumentException: Unknown node kind in NodeKindTest at net.sf.saxon.pattern.NodeKindTest.makeNodeKindTest(NodeKindTest.java:55) at net.sf.saxon.pattern.NodeTest.getPrimitiveItemType(NodeTest.java:78) at net.sf.saxon.expr.ArithmeticExpression.typeCheck(ArithmeticExpression.java:157) at net.sf.saxon.expr.UnaryExpression.typeCheck(UnaryExpression.java:46) at net.sf.saxon.expr.LetExpression.typeCheck(LetExpression.java:47) at net.sf.saxon.expr.ForExpression.extractLoopInvariants(ForExpression.java:219) at net.sf.saxon.expr.ForExpression.optimize(ForExpression.java:160) at net.sf.saxon.query.XQueryExpression.<init>(XQueryExpression.java:62) at net.sf.saxon.query.QueryParser.makeXQueryExpression(QueryParser.java:79) at net.sf.saxon.query.StaticQueryContext.compileQuery(StaticQueryContext.java:261) at net.sf.saxon.query.StaticQueryContext.compileQuery(StaticQueryContext.java:315) at net.sf.saxon.Query.doMain(Query.java:348) at net.sf.saxon.Query.main(Query.java:75) Fatal error during transformation: Unknown node kind in NodeKindTest Thanks, Marc

Legacy ID: #3279790 Legacy Poster: Michael Kay (mhkay)

Thanks for the extra info. This problem demonstrates that Saxon is having difficulty with type inferencing when it is able to determine statically that a subexpression returns an empty sequence. The patches at: https://sourceforge.net/tracker/index.php?func=detail&amp;aid=1251814&amp;group_id=29872&amp;atid=397617 deal with this example and some closely related examples, though I'm not confident that they are a 100% solution. MK