Re: [Haskell-cafe] out-commented code vs. case with redundant pattern matches

On Wed, 29 Nov 2017, Olaf Klinke wrote:

Henning,

how about putting the branches into their own variables. Admittedly this pollutes the namespace but is much more readable IMHO.

workflow = new_workflow where new_workflow = putStrLn "A" old_workflow = putStrLn "B"

I suppose GHC complains neither about unused where clauses nor about unused top-level bindings. At least with GHCi 7.8.3 the above code produces no warnings.

It complains with -Wall, which is a good thing. But in this case I can suppress the warning individually by prepending an underscore.