Difference between revisions of "Module:No globals"

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en>Hashar
m (5 revisions imported from w:en:Module:No_globals)
(Blanked the page)
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local mt = getmetatable(_G) or {}
+
 
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function mt.__index (t, k)
 
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if k ~= 'arg' then
 
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error('Tried to read nil global ' .. tostring(k), 2)
 
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end
 
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return nil
 
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end
 
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function mt.__newindex(t, k, v)
 
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if k ~= 'arg' then
 
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error('Tried to write global ' .. tostring(k), 2)
 
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end
 
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rawset(t, k, v)
 
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end
 
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setmetatable(_G, mt)
 

Revision as of 05:41, 1 March 2017

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

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