Difference between revisions of "Module:No globals"

From The HILLSIDE
Jump to navigation Jump to search
en>Jdforrester (WMF)
m (1 revision imported from w:en:Module:No_globals: Page about technical change that was posted to a local wiki)
m (21 revisions imported: Import Template:Page in progress)
 
(11 intermediate revisions by 7 users not shown)
(No difference)

Latest revision as of 08:10, 14 July 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
		-- 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)