[Exist-open] is eXist support lazy evaluation?

[Вячеслав С. <sch...@gm...>]

let $a := ...
let $b := ...
let $c :=
return if($a) then $b else $c

in one of similar cases i note that eXist report error from let $c
even in cases when $a is true

is here exist any pragma to force eXist to be lazy?

with best wishes,
Slav

BTW - what about compression:unzip? if the problem too complex - then
what about temporary rollback to working code?