Hi,

I have a question, what's the best way to program?
- put all the signatures in the Haskell Code?
- Only put the type signatures needed to compile (like monomorphism errors or ambiguous signature)?

Until now, I prefer the second one, but when I use the -Wall option, there's a lot of complains about type signature. Maybe the type signature is something that not need to be checked as a warning.

But if the best practice is to put all the signatures, I found that Cabal generated code need to be fixed, because -Wall complains about it also.

Hi Luis,

I don't know what the best way to program is, but I usually put signatures on all functions. I think it often helps get smarter error messages from the compiler. ;-)

So I like the warning about missing signatures. If you don't like it you can disable it like this:

-Wall -fno-warn-missing-signatures

or maybe use -W instead of -Wall, apparently the warn-missing-signatures is not comprised in the -W flag.

Cheers,

Olivier.