Clojurians Log v2

+1 😉

Thanks! Seems you are the only one who understood that part of the update. 😃

Just a couple of more cents: half a year ago I started developing Clojure in my day-time job. I have been meddling around with it for some two years now I think. I’m a very experienced programmer, even a bit FP, but completely new to Lisp/Clojure/REPL/etc. I think in this situation there’s quite a big learning curve. So many things you have to learn and understand. So many options. Quite overwhelming frankly. So to me the easy jack-in of Calva was absolutely great, because it allowed me to just start using things without also having to figure out all the details of that part of the story. And today I still use jackin all the time, I don’t have a reason to start a REPL outside and connect to it. Maybe when I have a few more years of experience I will, maybe I won’t , but to me the jack-in is awesome 😍

For some time, I have been experiencing a delay in getting the exception when I try to evaluate an inline expression (inside VS code editor) with calva jacked-in. I am wondering if this has to do with my setup or this delay is expected. The delay is significant - about 20 sec. For example, if I evaluate (ok 2) then I get the syntax error about ok symbol issue after about 20 sec. I dont have anything extra beyond calva’s defaults wrt evaluation process.

@amarjeet, Sounds like this issue: https://github.com/BetterThanTomorrow/calva/issues/929 I thought that problem was fixed…

@pez thanks, let me update the cider/repl deps - will ping the status

Currently, when i jack-in, I have the following deps:

clojure -Sdeps '{:deps {nrepl {:mvn/version "0.8.2"} cider/cider-nrepl {:mvn/version "0.23.0"} clj-kondo {:mvn/version "2020.04.05"}}}'  -m nrepl.cmdline --middleware "[cider.nrepl/cider-middleware]

hey @pez , my deps.edn file in the ~/.clojure doesn’t specify any specific version of nrepl or cider/cider-nrepl. Are these dependencies being automatically fetched by calva when i jack-in? I have these deps specified in lein profile, but I am currently using with deps cli.

I guess it is up to lein which dependency setting get priority. But I think the Calva injections takes priority. That looks like you are using an old version of Calva, btw. So if you upgrade, you should be good.

My calva version is one older than the current one, and re-installing in the vs code re-installs the same version unfortunately. I am gonna try to vs code update, followed by calva update

Yup, updating vs code let me update calva - now things are good 🙂 thanks @pez

Calva has become better with new update

nice

although in some cases, I am not getting exception at all, its just blank. I will investigate a bit on this about scenarios in which such things are happening.

Awesome.

Don’t spend time on this - but I tried all those. No errors, but nothing in any log as far as I can see.

Haha, try to stop me. 😃 But not right now, working for food time.

All the dependencies in this command are added by the Calva jack-in process. The clojure command will use the :paths and :deps from the project deps.edn file (and user wide .clojure/deps.edn file if it has those keys). No aliases are specified in the Clojure command, so none are use. Calva doesn't allow the user to specify aliases from the user wide config, without adding even more config in Calva. This is another reason I use connect rather than jack-in

got it, cool

thanks

What is the best practice to know more about java instances, how to find methods of the instance in calva ? Is clojure.reflect/reflect the most elegant method?

Probably not news: https://clojure.org/guides/repl/data_visualization_at_the_repl#_dealing_with_mysterious_values_advanced

So how do you call refrect in practice, you just paste code in editor:

(comment
  (require '[clojure.reflect :as reflect])
  (require '[clojure.pprint :as pp])
(->> (reflect/reflect con) :members (sort-by :name) (pp/print-table [:name :flags :parameter-types :return-type]))

You could maybe use custom commands for this. Not sure, but check this out and see if it could help: https://calva.io/custom-commands/

Tap current form should be built-in eh?

It isn’t yet, but I agree.

I was listening a podcast about cursive and autor said that he implemented a trick that inspect is triggered at dot key down: (s. and when user selects the method (.toString) form is transfomed to (.toString s|)

or something like that

but the swaping object and method seems like a clever trick

I will try with custom command

That is a neat feature

I also used that reflect strategy recently when trying to do the same

Like so?

{
            "name": "Inspect",
            "repl": "clj",
            "snippet": "(.toString $current-form)"
        }

{
            "name": "reflect",
            "snippet": "(require '[clojure.reflect :as reflect]) (require '[clojure.pprint :as pp]) (->> (reflect/reflect $current-form) :members (sort-by :name) (pp/print-table [:name :flags :parameter-types :return-type]))",
            "repl": "clj"
        }

this works

Way cool. @claudius.nicolae pointed me in a direction that I think might make it possible to assign a direct keyboard shortcut to that. Check here: https://github.com/BetterThanTomorrow/calva/issues/1008