Difference between revisions of "Module:No globals"

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(rm name exception)
 
m (1 revision)
 
(No difference)

Latest revision as of 19:13, 16 April 2016

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)