tracks/haskell/exercises/forth/src/Forth.hs in trackler-2.0.0.3 vs tracks/haskell/exercises/forth/src/Forth.hs in trackler-2.0.0.4

@@ -15,9 +15,11 @@
      | StackUnderflow
      | InvalidWord
      | UnknownWord Text
      deriving (Show, Eq)
 
+data ForthState = Dummy
+
 empty :: ForthState
 empty = undefined
 
 evalText :: Text -> ForthState -> Either ForthError ForthState
 evalText = undefined