Module:No globals: Difference between revisions

From Indian River Lagoon Project
m (Protected "Module:No globals": Highly visible template: Redundant to current transclusion on a cascading protected page, but better safe than sorry ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite)))
m (1 revision imported)
 
(2 intermediate revisions by the same user not shown)
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 9: Line 8:
function mt.__newindex(t, k, v)
function mt.__newindex(t, k, v)
if k ~= 'arg' then
if k ~= 'arg' then
error(require('Module:TNT').format('I18n/No globals', 'err-write', tostring(k)), 2)
error('Tried to write global ' .. tostring(k), 2)
end
end
rawset(t, k, v)
rawset(t, k, v)
end
end
setmetatable(_G, mt)
setmetatable(_G, mt)

Latest revision as of 09:26, November 9, 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
		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)
Retrieved from "https://indianriverlagoonnews.org/guide/index.php?title=Module:No_globals&oldid=17600"