@alejandro: can you share with us some concrete use-case regarding what you want to do?

we don’t have real conditional breaks (although you can definitely request their addition)

but at least we can suggest some reasonable workarounds

@alejandro: You can add an if into your code, and then break inside a branch of that if

(defn do-it [arg]
  (if (i-want-to-break arg)
    #break arg
    arg))

YOu can also try binding the *skip-breaks* var to (atom true), this is leveraging on internal debugger stuff, but it might work

(defn do-it [arg]
  (binding [cider.nrepl.middleware.debug/*skip-breaks*
            (if (i-want-to-break arg)
              cider.nrepl.middleware.debug/*skip-breaks*)
              (atom true)]
     (do-the-usual-function-here)))

@bozhidar: really just want to use it for a clause in a loop (or function called in a loop), but only on like the 10,000th iteration

@malabarba: I actually haven’t been able to get #break or #dbg to work at all. I use the "cider instrument top level form” to get it to work

@alejandro: Oh, then you're probably using 0.9.1. The #break and #dbg are only on the snapshot release for now.

@malabarba: got it. what’s the best way to move to the snapshot release? I have no problem using a later build

@alejandro: The *skip-breaks* solution might still work

Or not ... 😛

To install the snapshot, just bump the version to 0.10.0-SNAPSHOT

(on the clojure side)

And install the cider package from Melpa (on the emacs side)

@malabarba: hmm, says I’m on cider snapshot already 0.10.0snapshot (20150824.244)

and [cider/cider-nrepl "0.10.0-SNAPSHOT”]

hm

then the reader macros should work

What happens if you write in a file (let [x 1] #break (inc x)) and hit C-x C-e?

yeah that work

s

hmm, maybe I was using it incorrectly? I tried it in a lengthy let statement and it wasn’t triggering yesterday

How were you evaluating it? C-c C-k won't work

ah that’s probably it

Yeah, you're not the first to run into that.

so I need to C-x C-e the form itself

It has to be one of the evaluation commands, like C-x C-e or C-M-x

Loading the file (`C-c C-k`) doesn't do it

cool, I’ll roll with that. That will make a conditional break much easier to set up

thank you!

np :thumbsup:

oh, one more question: if I’ve setup debugging on a top level form, is there a way to then disable it?

yes, just reevaluate it normally

so just C-x C-e it

and it will not be instrumented anymore

Yes

I think C-c C-k will work in this case too

At least it should, so if it doesn't do let us know

cool, thanks again