Module:No globals: Difference between revisions
From Space Station 14 Wiki
ENWIKIIMPORT>MusikAnimal (Undid revision 948472525 by [[Special:Contributions/w>DiBabelYurikBot|w>DiBabelYurikBot]] ([[User talk:w>DiBabelYurikBot|talk]])) |
m (Protected "Module:No globals" ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite))) |
| (One intermediate revision by the same user not shown) | |
(No difference)
| |
Latest revision as of 23:24, 13 December 2021
Documentation for this module may be created at Module:No globals/doc
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)
