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modded-factorio / SeaBlock

Factorio mod pack Sea Block
https://mods.factorio.com/mod/SeaBlock
MIT License
22 stars 18 forks source link

Error checking #257

Closed KiwiHawk closed 2 years ago

KiwiHawk commented 2 years ago

Also if anyone is up for a challenge, try adding this to the top of your control.lua, and see how far you get:

setmetatable(_G, {
  __newindex = function (_, n)
    error("attempt to write to undeclared variable "..n)
  end,
  __index = function (_, n)
    error("attempt to read undeclared variable "..n)
  end,
})