Eric Kow wrote: > On Thu, Jul 22, 2010 at 20:38:35 -0500, Adolfo Builes wrote: >>> Is it really necessary for this to be String -> Bool? >>> Why not String -> IO Bool? >>> >>> Alternatively, why not IO (String -> Bool)? >>> >> I used (String -> Bool) basically to escape the IO so that I could >> use it easily in the guards. > > ... > >> I totally agree that I abused of unsafePerformIO, in this case I used >> for the same reason I gave before. > > I think an IO (String -> Bool) approach could maybe still work > because you can grab the (String -> Bool) function within IO, and > then use it within a guard. > > You'll have to decide if minimising the unsafePerformIO is worth the > extra code complexity or not. I tend to say it is, but others may > disagree with me.
I'm totally against use of unsafePerformIO simply to reduce local code complexity. Where we use it, it's to deal with _global_ issues like needing to thread state or log messages everywhere. Ganesh =============================================================================== Please access the attached hyperlink for an important electronic communications disclaimer: http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html =============================================================================== _______________________________________________ darcs-users mailing list darcs-users@darcs.net http://lists.osuosl.org/mailman/listinfo/darcs-users
