Module:No globals: Difference between revisions

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    (Undid revision 948472525 by [[Special:Contributions/w>DiBabelYurikBot|w>DiBabelYurikBot]] ([[User talk:w>DiBabelYurikBot|talk]]))
     
    m (1 revision imported: Importing CS-1 templates and Template:Citation with the "include templates ticked")
     
    (No difference)

    Latest revision as of 19:17, 6 December 2020

    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)