Modul:No globals

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This module causes an error if any nil global is read or if any global is written to, with the exception of arg. To use, add require('Module:No globals') to the top of the module using it. The arg variable is excluded because it is necessary for Scribunto's require function to work properly. (See the Scribunto source code here.)

Gornja je dokumentacija transkludirana iz Modul:No globals/doc.
Podstranice ovog modula.

local mt = getmetatable(_G) or {}
function mt.__index (t, k)
	if k ~= 'arg' then
		error('Pokušao sam čitati nil globalne ' .. tostring(k), 2)
	end
	return nil
end
function mt.__newindex(t, k, v)
	if k ~= 'arg' then
		error('Pokušao sam upisati u globalnu ' .. tostring(k), 2)
	end
	rawset(t, k, v)
end
setmetatable(_G, mt)