tuple
{ "state" } define-tuple-class
-"((empty))" "hashtables.private" create-word
+"+empty+" "hashtables.private" create-word
{ f } "tombstone" "hashtables.private" lookup-word
slots>tuple 1quotation ( -- value ) define-inline
-"((tombstone))" "hashtables.private" create-word
+"+tombstone+" "hashtables.private" create-word
{ t } "tombstone" "hashtables.private" lookup-word
slots>tuple 1quotation ( -- value ) define-inline