[xquery-talk] [ANN] Saxon 8.7 is available on Java and .NET

[Michael Kay]

> I'm curious about how fn:trace() can be used [on .NET]

fn:trace should work fine: by default it will send its output to the
standard error stream.

> and possibly implementing a tracelistener.

Things like the TraceListener interface (which I haven't yet incorporated
into the .NET API) may require a bit of hacking to get working initially. In
general, the user-written plug-ins like this are loaded using Java dynamic
loading rather than .NET dynamic loading, so you'll need to write the
TraceListener in Java for the time being. IKVMC seems to be quite good at
dynamic loading of Java code, however.

Expect this to get better in future releases.

The best tip I can give for debugging is to use the schema-aware version. I
would say that, of course: but it does make a big difference.

Michael Kay
http://www.saxonica.com/