Difference between revisions of "Module:No globals"
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what>Ged UK m (Protected Module:No globals: High-risk Lua module ([Edit=Allow only template editors and admins] (indefinite) [Move=Allow only template editors and admins] (indefinite))) |
what>Jackmcbarn (rm name exception) |
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| Line 1: | Line 1: | ||
local mt = getmetatable(_G) or {} | local mt = getmetatable(_G) or {} | ||
function mt.__index (t, k) | function mt.__index (t, k) | ||
| − | if | + | if k ~= 'arg' then |
error('Tried to read nil global ' .. tostring(k), 2) | error('Tried to read nil global ' .. tostring(k), 2) | ||
end | end | ||
Revision as of 15:35, 2 May 2014
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)
