Modul:superstrict

Bu modul uchun Modul:superstrict/doc nomli hujjat sahifasini yaratishingiz mumkin

local error = error

local new_G = {}
new_G.__index = new_G
setmetatable(_G, new_G)

for k, v in next, _G do
	new_G[k] = v
	_G[k] = nil
end

function new_G:__index(k)
	-- `arg` and `_G` are used by `require`.
	if k == "arg" or k == "_G" then
		return new_G[k]
	elseif new_G[k] then
		error("variable '" .. k .. "' is a global", 2)
	end
	error("variable '" .. k .. "' is not declared", 2)
end

function new_G:__newindex(k, v)
	if k ~= "arg" then
		error("assign to undeclared variable '" .. k .. "'", 2)
	end
	new_G[k] = v
end