hash tables use incompatible with enum-next and enum-prev Amirouche Boubekki 20 Sep 2020 18:38 UTC

It seems to me reading the specification that enum-next and enum-prev
can not be implemented if the enum-type is using a hash-table.

Rationale suggests hash-table as a way to implement it

ref: https://srfi.schemers.org/srfi-209/srfi-209.html#enum-objects