http://dev.clojure.org/jira/browse/ASYNC-173 sad trombone

@hiredman: Throwable is higher than Exception so it wouldn’t get caught by the Exception catcher?

I’m still at a loss why it keeps running though

because the little compiler in the ioc macros in core async is broken and generates bad code there

the two issues he links to are the same problem, and both of them have patches that fix it, but I am not sure if they both still apply

I wrote one of the patches a few months ago I think

internally, the go macro in core.async is a compiler, it just happens that both the source and the target language are clojure. the source is regular normal looking clojure, the target is a weird state machine / callback full clojure

that compiler has to generate code to handle exceptions, which it does, but the way it does it, and the runtime support code it uses is broken

my patch ends up throwing a lot of the existing code out, the existing code has this helper that is a big cond for different exception cases, which was kind of gross and incorrect as it turns out

http://dev.clojure.org/jira/browse/ASYNC-165 is another fun issue with the core.async compiler, but only on the clojurescript side (last I checked)