I have this and a couple other handy functions in DebugTraceHelpers:
http://patch-tag.com/r/tphyahoo/DebugTraceHelpers/snapshot/current/content/pretty hackage: http://hackage.haskell.org/packages/archive/DebugTraceHelpers/0.12/doc/html/Debug-Trace-Helpers.html 2009/10/16 Martijn van Steenbergen <[email protected]>: > Hello, > > I propose the addition of the following two functions to module Debug.Trace: > >> traceM :: Monad m => String -> m () >> traceM msg = trace msg (return ()) >> >> traceShowM :: (Show a, Monad m) => a -> m () >> traceShowM = traceM . show > > These functions allow tracing in any do-block. I often define them myself; I > think they are useful in general. > > Deadline: 23 October 2009. > > Martijn. > _______________________________________________ > Libraries mailing list > [email protected] > http://www.haskell.org/mailman/listinfo/libraries > _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
