USING: fry accessors arrays kernel kernel.private combinators.private
words sequences generic math math.order namespaces quotations
assocs combinators combinators.short-circuit classes.tuple
-classes.tuple.private effects summary hashtables classes generic sets
+classes.tuple.private effects summary hashtables classes sets
definitions generic.standard slots.private continuations locals
sequences.private generalizations stack-checker.backend
stack-checker.state stack-checker.visitor stack-checker.errors