Module:No globals

Documentation for this module may be created at Module:No globals/doc

Script error: Lua error: Cannot create process: proc_open(/home4/iltornan/lua/error.log): Failed to open stream: No such file or directory

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)