Module:No globals: Difference between revisions
Jump to navigation
Jump to search
m 1 revision imported |
m 7 revisions imported |
(No difference)
| |
Latest revision as of 02:45, 18 May 2018
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)