diff options
Diffstat (limited to 'util/set.lua')
| -rw-r--r-- | util/set.lua | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/util/set.lua b/util/set.lua index c136a522..02fabc6a 100644 --- a/util/set.lua +++ b/util/set.lua @@ -11,8 +11,9 @@ local ipairs, pairs, setmetatable, next, tostring = local t_concat = table.concat; local _ENV = nil; +-- luacheck: std none -local set_mt = {}; +local set_mt = { __name = "set" }; function set_mt.__call(set, _, k) return next(set._items, k); end @@ -22,6 +23,14 @@ function items_mt.__call(items, _, k) 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 }; |