Dear Gunther,
Thank you for the test code. I gradually changed it into my code that
did not work, and found the problem:
private static Expr[] parameterVars(FuncType funcType,
QueryContext queryContext)
{
Expr[] paramVars = new Expr[funcType.argTypes.length];
for (int i = 0; i < paramVars.length; ++i) {
paramVars[i] = new VarRef(null, new VarScope().addNew(new
QNm("arg"+i), funcType.argTypes[i], queryContext, null));
}
return paramVars;
}
I was trying to be clever, and derive the parameter VarRefs from the
function type. But this cannot get to the original parameter names, and
I invented new names; new QNm("arg"+i). But these names are different
from the original names, and somehow this means that in some cases there
will be no parameters on the stack.
What is strange / interesting, is that with the above code, the
following works:
let $ner-parse := ner:named-entity-recognition($grammar, map{})
return $input => $ner-parse()
But using a declared variable does not work:
declare variable $ner-parse as function(item()) as node()* :=
ner:named-entity-recognition($grammar,map{});
$input => $ner-parse()
Now I make sure I use the same names for the generated VarRefs, and my
function is always called with the parameter values on the stack.
Thanks for your help!
Best regards,
Nico
