author | Kim Alvefur <zash@zash.se> |
Fri, 12 Oct 2018 00:51:56 +0200 | |
changeset 9491 | a96a2fbcc6c0 |
parent 9490 | 4e38121a349d |
child 9492 | 09b873ac7eb8 |
util/set.lua | file | annotate | diff | comparison | revisions |
--- a/util/set.lua Fri Oct 12 00:51:52 2018 +0200 +++ b/util/set.lua Fri Oct 12 00:51:56 2018 +0200 @@ -23,6 +23,14 @@ return next(items, k); end +function set_mt:__freeze() + local a, i = {}, 1; + for item in self._items do + a[i], i = item, i+1; + end + return a; +end + local function new(list) local items = setmetatable({}, items_mt); local set = { _items = items };