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mm/Lua/lib/strict.lua
Connor Olding 1acbaba58c be super strict about globals
theres still a lot of work to do\nsince most scripts just set globals explicitly\nthis is still better than implied globals though
2016-01-13 09:21:24 -08:00

21 lines
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Lua

local mt = getmetatable(_G)
if mt == nil then
mt = {}
setmetatable(_G, mt)
end
function mt.__newindex(t, n, v)
if n == '_TEMP_BIZHAWK_RULES_' then
rawset(t, n, v)
return
end
error("cannot assign undeclared global '" .. tostring(n) .. "'", 2)
end
function mt.__index(t, n)
if n == '_TEMP_BIZHAWK_RULES_' then
return
end
error("cannot use undeclared global '" .. tostring(n) .. "'", 2)
end