Difference between revisions of "Module:No globals"

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meta>DiBabelYurikBot
m (Copying one change by Mainframe98: "From Module:No globals/sandbox, per Topic:Uyr5gphaxbpe5k4h" from mw:Module:No globals. (docs, translate))
en>Jdforrester (WMF)
m (1 revision imported from w:en:Module:No_globals: Page about technical change that was posted to a local wiki)
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Revision as of 22:33, 12 July 2019

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
		-- 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)