Module:No globals

From Minecraft基岩版开发Wiki

Usage[edit]

Include this module at the top of your code. An error will be raised any time your code tries to read or write to a non-local (undeclared) variable.


Tests[edit]

Template:(! class="wikitable" | Module:No globals | success: 0, error: 1, skipped: 0 |- | Module:No globals/sandbox | success: 0, error: 1, skipped: 0 Template:!)

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)