Hey!I've been playing around a little bit with Common Lisp lately, and I've found the interactive restarts to be pretty amazing. So, I've implemented something similar to them in Clojure/Cider!
https://github.com/czan/dont-give-upIt has support for programmatic restarts, but also includes some nrepl middleware which will (when paired with the additional elisp code) prompt the user for what to do upon failure.
The restarts should interact sensibly with normal JVM exception handling. I've put a lot more thought into the exception/restart code than I have into the middleware/elisp code, so the cider interface is pretty hacky at the moment. If you have experience writing nrepl middleware or extending Cider, I'd love your help!
One big problem with this at the moment is that Cider doesn't let you do multiple evaluations in parallel, and the interactive prompt blocks the thread until you tell it what to do. This means you can't evaluate anything else until you have chosen a restart, which limits how interactive the system really feels. Fixing this has to be done in Cider itself, I believe.
It still needs a polish/improvement to be as good as slime, but it's a start!
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