No globals
From Halal Explorer
This documentation is transcluded from Module:No globals/doc. (edit | history)
Note to editors: Please don't categorize this template by editing it directly. Instead, place the category in its documentation page, in its "includeonly" section.
Note to editors: Please don't categorize this template by editing it directly. Instead, place the category in its documentation page, in its "includeonly" section.
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.)
Script error: Lua error: Cannot create process: proc_open(/dev/null): Failed to open stream: Operation not permitted
local mt = getmetatable(_G) or {} function mt.__index (t, k) if k ~= 'arg' then -- perf optimization here and below: do not load Module:TNT unless there is an error error(require('Module:TNT').format('I18n/No globals', 'err-read', tostring(k)), 2) end return nil end function mt.__newindex(t, k, v) if k ~= 'arg' then error(require('Module:TNT').format('I18n/No globals', 'err-write', tostring(k)), 2) end rawset(t, k, v) end setmetatable(_G, mt)