Re: [basex-talk] for-each issue on child-elements

Hi Rob,

I’ve created an issue to track this down [1].

And I remember you have posted a similar bug in the past [2]… The challenge was/is to find out at compile time if a function is being inlined that has already been inlined.

Another workaround: $context/child::* ! $context.processor(., $context.processor)

Cheers, Christian

[1] https://github.com/BaseXdb/basex/issues/2033 [2] https://github.com/BaseXdb/basex/issues/879

On Sat, Aug 14, 2021 at 10:37 AM Rob Stapper r.stapper@lijbrandt.nl wrote:

Hi Christian,

I encountered this erroneous behavior while using the for-each-function on a set with child-elements.

The evident work-around [2] workd fine.

I’m using BaseX 9.6 RC2.

I attached the code as attachment.

Hope this helps.

[1]

let $context := <A><B1><C11></C11><C12></C12></B1><B2><C21></C21></B2></A>

let $context.processor :=

function( $context as element( )

    , $context.processor as function(*)

    )                    as map(*)

    { map { $context => name() : $context/child::*

                                 => for-each( $context.processor( ?

                                                                ,

$context.processor

                                                                )

                                            )

          }

    }

return $context

      => $context.processor( $context.processor

                           )

[2]

let $context := <A><B1><C11></C11><C12></C12></B1><B2><C21></C21></B2></A>

let $context.processor :=

function( $context as element( )

    , $context.processor as function(*)

    )                    as map(*)

    { map { $context => name() : $context/child::*

                                 => for-each( function( $child as

element( )

                                                      )

                                                      { $child

                                                        =>

$context.processor( $context.processor

)

                                                      }

                                            )

          }

    }

return $context

      => $context.processor( $context.processor

                           )

Rob

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