Doesn't error-kit do this? On Wed, Mar 11, 2009 at 10:15 PM, Mark Engelberg <mark.engelb...@gmail.com>wrote:
> > I'm thinking about implementing a backtracking mechanism that throws > errors as a way to escape out of the current computation and try > another possibility. I'd want to create a specific error to escape, > and the backtracking mechanism should only catch this very specific > error. > > Now, I vaguely recall some thread on here a while ago about how this > is very hard to do in Clojure, because Clojure wraps the errors inside > of other errors as they work their way outwards, so you can't just > catch a very specific error. I think there was some sort of > workaround involving catching every error, and looking deep inside the > stack of errors to find the specific error, and if not found, pass it > on up the chain. > > Am I remembering this "gotcha" correctly? If so, can someone please > spell out the workaround for me again? > > Thanks. > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
