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lang-bash
[ "$1" = arr ] || local -n arr=$1in place of justlocal -n arr=$1. That way the argument and the parameter names can coincide. As far as I can tell, the scope inbashis dynamic.nbe a circular reference? If you changed the namearraytonand called the function e.g.copyFiles nthen inside the function the local variablearris created effectively as an alias or synonym ofn.local -n arralso means a locally (function) scoped variable so even if you called thatnas well it wouldn't be circular. The fact that changing thearrinside the function also changes the value ofarrayoutside the function is not circular either, it's because both names ultimately point to values in the same address space.