…thanks. I already guessed it wasn’t that easy ;) I’ve added it to [1].

In general, I hope we could get completely rid of self-dependency checks. It was only defined for variables, not for functions, and I cannot see why we still need it today. We are currently discussing this topic for version 4.0 [2].

Best,

Christian

[1] https://github.com/BaseXdb/basex/issues/2324

[2] https://github.com/qt4cg/qtspecs/issues/1379

On Wed, Aug 14, 2024 at 1:02 PM Amanda Galtman <galtmana@proton.me> wrote:

Christian, thanks very much.

I returned to my actual code, and it works with the latest snapshot dated today.

By the way, I also retried the variations I had created when trying to explore workarounds, and one of them still doesn't work with the latest snapshot. It's not blocking me, but in case it is helpful, I reduced it to another small query that reproduces the error with today's snapshot. I know you said you fixed part of the problem, so you might not be surprised that the following code still triggers the error.

xquery version "3.1";

declare variable $variant :=

  if (exists(function-lookup(QName('nonexistent','nonexistent'), 0)))

  then

    ( (: not relevant :) )

  else

    function-lookup(QName('http://www.w3.org/2005/xpath-functions','string'), 1);

declare variable $variant-fcns := $variant;

declare function local:fcn() {

  $variant-fcns('abc')

};

local:fcn()

The levels of indirection (variable, variable, function, function call) seem to be relevant for the problem. If I make the code more direct, it works.

Regards,

Amanda

On Monday, August 12th, 2024 at 5:16 AM, Christian Grün <christian.gruen@gmail.com> wrote:

I managed to fix a part of the dependency problem. Your query should now be executable with the latest snapshot [1].

– Christian

[1] https://files.basex.org/releases/latest/

On Fri, Aug 9, 2024 at 5:51 PM Amanda Galtman <galtmana@proton.me> wrote:

Hi, all.

I'm seeing an error in BaseX when I use function-lookup in both a global variable and a function, where the function relies on the variable. I reduced the situation to the following small query:

xquery version "3.1";

declare variable $local:lookup := function-lookup(QName("nonexistent", "nonexistent"), 1);

declare function local:myfcn() {

let $f := ($local:lookup, function-lookup(QName('http://www.w3.org/2005/xpath-functions','string'), 1))[1]

return $f('a')

};

local:myfcn()

When I run it with BaseX 11.1, I get

[XQDY0054] Static variable depends on itself: $local:lookup

When I run it with Saxon-HE 12, I don't get this error.

Is there anything I can do in my code to avoid this error?

Thanks,

Amanda