Errors when executed over a prepl connection

[Olical]

So this is a bit of a weird onc since there's hardly anyone (possibly just me?) is using prepl for development right now, if you don't care just yet then that's totally fine! Thought I'd let you know anyway 😄

The error is Can't change/establish root binding of: *cljs-warnings* with set, which works fine in a normal REPL. This could be an issue with prepl itself that isn't setting up binding in the right way.

Even if I can't fix it, finding a work around would be great. If I find something I'll put it here, any help would be much appreciated though. This error occurs with any oops operation due to the fact that the setting of *cljs-warnings* is attempted by every macro low down.

I'm not sure what the difference is between a prepl and regular REPL though. You can try it yourself by starting a prepl:

clj -J-Dclojure.server.node="{:port 5556 :accept cljs.server.node/prepl}"

Connecting with something like nc:

nc 127.0.0.1 5556

And executing any oops operation such as:

(oops.core/ocall #js {"a" +} "a" 1 1)

[darwin]

This might be related: nrepl/piggieback#95

I would accept a patch which would make this code configurable so you could opt-out.

[Olical]

I found that one too, I'm not sure if it's actually related though. I wonder how different piggieback / nrepl is to prepl when it comes to this sort of thing. I doubt I'll get around to a patch since I've resorted to my own functions for now. I don't need that much interop so it's okay for me to avoid.

If you'd like to close this that's totally fine, at least the issue will exist for future reference. Maybe it's a bug in ClojureScript since prepl is built into Clojure(Script) 🤔

[darwin]

This is fine. Let's keep it open. I might add that configuration flag next time when I get to working on the lib.