[Haskell-cafe] IO typeclasses
Is there any particular reason IO functions in the standard libraries aren't grouped into type-classes? This might allow for: 1) Testing IO code without actual input and output. (I have done this on a small scale, but it presently involves much ugliness). 2) Redirecting output of a function that neglects to take a handle without a bunch of calls to dup. 3) Forwarding IO over a connection to a remote system, allowing code written to work locally to be applied remotely, or vice-versa. 4) Wrapping dangerous IO actions in additional sanity checks. Thoughts? ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] IO typeclasses
On Fri, Dec 30, 2011 at 4:47 PM, David Thomas davidleotho...@gmail.com wrote: Is there any particular reason IO functions in the standard libraries aren't grouped into type-classes? I'm guessing it's to stop the report from getting too complicated. If you want an IO abstraction, you can try HVIO: http://hackage.haskell.org/packages/archive/MissingH/latest/doc/html/System-IO-HVIO.html ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
