> Within the iteratee enumerator you use to send the data, it should be > possible to use catchError and/or the MonadCatchIO typeclass instance > to attach a "finally" handler to your code.
I don't think I understand Haskell well enough to make sense of what's going on here. catchError takes an Iteratee and a function that transforms an exception into an Iteratee, and returns a third Iteratee. The typical Snap handler function is of type Snap (), and the functions I've been using (writeBS, modifyResponse) also return "m ()", where m is a Snap. I don't see what I need to do to lift my Snap () functions into Iteratee functions so that I can use catchError on them. Am I missing something obvious? I'm still pretty shaky on Haskell's types, so I'm guessing there's something that I just don't understand about how Iteratees and Snap () types work together. _______________________________________________ Snap mailing list [email protected] http://mailman-mail5.webfaction.com/listinfo/snap
