Hi Rob,

One way to do this is to use Java data structures:

declare namespace map = 'java.util.HashSet'; let $map := map:new() return ( map:add($map, 'abc'), map:size($map), map:add($map, 'def'), map:size($map) )

From a functional programming perspective, this is of course not the

recommendable way to go, but otherwise you would need to pass on the current debugging state to all functions.

Best, Christian

On Fri, May 1, 2015 at 4:49 PM, Rob Stapper r.stapper@lijbrandt.nl wrote:

Hi Christian,

To support debugging my code I’m writing a module with debugging-functions in xquery.

To reduce the impact of the debug-functions on my code I want this debug-module to be statefull.

So every time a debug-function is called it remembers it’s previous debug state.

This way I don’t have to carry this debug state all throughout my already complex code.

I’ve tried several options but without success. My latest attempt uses file-read and –write( see attached file), but I don’t understand how these functions behave.

Can you give me a hint how to approach this?

Thanx in advance,

Rob Stapper

PS. This debug-state could look something like:

<debugState functionName ‘child-child-function-name’ level=’3’>

<debugState functionName ‘child-function-name’ level=’2’>

    <debugState functionName ‘parent-function-name’ level=’1’/>

</ debugState>

</ debugState>

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