Module:No globals: Difference between revisions

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m (Protected "Module:No globals": much used module ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite) [Delete=Allow only administrators] (indefinite) [Protect=Allow only administrators] (indefinite)))
m (Changed protection settings for "Module:No globals": High-risk template or module (more info) ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite)))
Line 2: Line 2:
function mt.__index (t, k)
function mt.__index (t, k)
if k ~= 'arg' then
if k ~= 'arg' then
-- perf optimization here and below: do not load Module:TNT unless there is an error
error('Tried to read nil global ' .. tostring(k), 2)
error(require('Module:TNT').format('I18n/No globals', 'err-read', tostring(k)), 2)
end
end
return nil
return nil
Line 8: Line 9:
function mt.__newindex(t, k, v)
function mt.__newindex(t, k, v)
if k ~= 'arg' then
if k ~= 'arg' then
error('Tried to write global ' .. tostring(k), 2)
error(require('Module:TNT').format('I18n/No globals', 'err-write', tostring(k)), 2)
end
end
rawset(t, k, v)
rawset(t, k, v)

Revision as of 18:01, 23 August 2021

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)