Funny, following works in Babashka but not in Clojure

(defn non-tail-recur []
  (loop [i 100]
    (try
      (if (> i 10)
        (throw (ex-info "foo" {}))
        i)
      (catch Exception e
        (recur (dec i))))))

would you like bb to report an error here?

No, I think it’s ok. I was just debugging something and thought maybe was the cause, but it was something else

Clojure is pretty clear about it, in Babashka you are just lucky 🙂

hehe, maybe for compatibility it's good to just throw. issue welcome

at sci

I guess the check would need to happen at the analyzer level, right?

I'm not sure if recur is analyzed at all right now

what happens at runtime is that this loop is running within a function and when you call recur, it recurs the function call.

this is how recur is implemented in sci

Maybe analysing a function is enough:

(fn [] (try 1 (catch Exception e (recur))))
Syntax error (UnsupportedOperationException) compiling recur at (REPL:1:34).
Can only recur from tail position

did you know this is valid? clj -e "(recur)"

I'll fix it at one point. Don't worry about a patch

already made an issue

cool, thanks