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| author | Kim Alvefur <zash@zash.se> | 2018-10-12 00:51:56 +0200 |
|---|---|---|
| committer | Kim Alvefur <zash@zash.se> | 2018-10-12 00:51:56 +0200 |
| commit | 1ab9729aacb29265bd611c597f1b607d49e269a2 (patch) | |
| tree | 509c766b49334916d7ff421a51c3f1d7bf9016f2 /util/set.lua | |
| parent | 15ba5f41b17393bd610a547b3c62312986b9efc5 (diff) | |
| download | prosody-1ab9729aacb29265bd611c597f1b607d49e269a2.tar.gz prosody-1ab9729aacb29265bd611c597f1b607d49e269a2.zip | |
util.set: Add freeze metamethod
Diffstat (limited to 'util/set.lua')
| -rw-r--r-- | util/set.lua | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/util/set.lua b/util/set.lua index a4f20138..02fabc6a 100644 --- a/util/set.lua +++ b/util/set.lua @@ -23,6 +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 }; |