Re: [Haskell-beginners] Getting debugging going in ghci -- is there no mercy?

Il 19 maggio 2021 alle 21:10 Michael Turner ha scritto:

According to the Haskell wiki, "The trace function is located in the base package", which encouraged me to think it should just work by starting ghci. No such luck. So then I tried "stack gchi --package debug". No such luck. I added packages to stack.yaml as suggested. And here's where I am now.

λ> :m +Debug.Trace λ> :t +d trace "prova" 234 trace "prova" 234 :: Integer λ> trace "prova" 234 prova 234 `debug` is an — excellent! — debug package by Neil Mitchell, but not related to `Debug.Trace`.