Module:No globals
Revision as of 13:26, 5 September 2014 by Bugman admin (talk | contribs) (1 revision: Importing the wikipedia Template:Infobox export file.)
local mt = getmetatable(_G) or {} function mt.__index (t, k) if k ~= 'arg' then error('Tried to read nil global ' .. tostring(k), 2) end return nil end function mt.__newindex(t, k, v) if k ~= 'arg' then error('Tried to write global ' .. tostring(k), 2) end rawset(t, k, v) end setmetatable(_G, mt)