beowulf.oblist
A namespace mainly devoted to the object list and other top level global variables.
Yes, this makes little sense, but if you put them anywhere else you end up in cyclic dependency hell.
NIL
The canonical empty list symbol.
TODO: this doesn’t really work, because (from Clojure) (empty? NIL) throws an exception. It might be better to subclass beowulf.cons_cell.ConsCell to create a new singleton class Nil which overrides the empty method of IPersistentCollection?