--- a/util/set.lua Fri Feb 16 08:23:15 2018 +0100 +++ b/util/set.lua Fri Feb 16 08:23:26 2018 +0100 @@ -12,7 +12,7 @@ local _ENV = nil; -local set_mt = {}; +local set_mt = { __name = "set" }; function set_mt.__call(set, _, k) return next(set._items, k); end