Since a go block is async you cannot try/catch from outside. You need to either
try/catch inside the block and return the exception as the result of the go
block or use an extra channel to handle errors.
(def errors (async/chan))
;; exception handler
(go (loop []
(when-let [ex (<! errors)]
(do-something-with-ex ex)
(recur))))
;; normal go
(go (loop []
(try
(something-that-might-throw)
(catch :default e
(>! errors e)))
(recur)))
HTH,
/thomas
On Sunday, August 24, 2014 9:30:23 AM UTC+2, Yehonathan Sharvit wrote:
> I would like to catch exceptions that occur inside a go block. I need to
> catch the exceptions from outside the go block.
>
> I tried to write this piece of code but it didn't work. The exception was not
> caught.
>
> (try
> (go
> (throw (js/Error."My Exception in go block")))
> (catch js/Object e
> (println "exception caught: " e)))
>
>
> Any idea?
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