From 8410f318d2e5e65b8b71ecbed614060c73285969 Mon Sep 17 00:00:00 2001 From: Matthew Wild Date: Thu, 24 May 2012 18:51:18 +0100 Subject: util.set: Change '/' operator from filter to map+filter (nil to drop from set, false is a valid item). No code found which depends on current behaviour. --- util/set.lua | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'util/set.lua') diff --git a/util/set.lua b/util/set.lua index 050446ec..7f45526e 100644 --- a/util/set.lua +++ b/util/set.lua @@ -26,8 +26,9 @@ function set_mt.__div(set, func) local new_set, new_items = _M.new(); local items, new_items = set._items, new_set._items; for item in pairs(items) do - if func(item) then - new_items[item] = true; + local new_item = func(item); + if new_item ~= nil then + new_items[new_item] = true; end end return new_set; -- cgit v1.2.3