Clojurians Log v2
clojure-austin
Well, this definitely falls into the “thanks, I hate it” category for me but, uhhh, enjoy…
(defmacro infix-children [form]
(for [f form]
(if (list? f)
`(infix ~f)
f)))
(defmacro infix [form]
(if (list? form)
`(infix-children
~(if (= (count form) 3)
`(~(second form)
~(first form)
~@(drop 2 form))
form))
~form))
(infix (1 + ((5 - 2) + ((- 10) + 10))))
(infix ((1 / 2) + 2))
(infix (println (1 + (5 - 2))))Ah, I forgot I changed it to only affect lists with exactly 3 elements… obviously the drop 2 business could just be (nth form 2) now.
It gets weird fast. Like, if there’s a hash map, should we walk the whole thing to find things to infix?
I think I’ll just stick with my prefix notation. 😉
Fun meetup last night! I enjoyed the show-and-tell format and always love seeing other people’s tools! I’m glad we all gave our hearts to Clojure and could make it out for a special V-Day meetup, haha.
Here are some resources for stuff I mentioned last night:
• clojure.core/iteration (since 1.11) https://clojuredocs.org/clojure.core/iteration
• clojure.core/requiring-resolve (since 1.10) https://clojuredocs.org/clojure.core/requiring-resolve
• Mark joked about a generalized version of (Common Lisp’s) prog1 (which I called
returning in Clojure)
◦ I did this once, just for kicks: https://camdez.com/blog/2011/01/09/ruby-implementing-progn-from-lisp/#and-beyond
• Reitit (esp. middleware compilation: https://cljdoc.org/d/metosin/reitit/0.7.0-alpha7/doc/ring/compiling-middleware)
• Portal https://github.com/djblue/portal
• better-cond https://github.com/Engelberg/better-cond
• Binding conveyance https://clojure.org/reference/vars#conveyance
• Hiccup compilation https://tonsky.me/blog/hiccup/#how-hiccup-works
• ClojureScript macros (written in Clojure!) https://code.thheller.com/blog/shadow-cljs/2019/10/12/clojurescript-macros.html
• map-of macro https://github.com/metosin/potpuri/blob/d5294910d33147279b94152f1b4a5df907d75c6f/src/potpuri/core.cljc#L72-L77
• We collectively touched on...
◦ Rama https://blog.redplanetlabs.com/2023/10/11/introducing-ramas-clojure-api/
◦ Apache Samza https://samza.apache.org/
◦ Also possibly interesting
▪︎ Apache Flink https://flink.apache.org/
▪︎ Materialize https://github.com/MaterializeInc/materialize
• Instaparse https://github.com/Engelberg/instaparse
Very romantic. But I agree-- this format was a good way to fill a Meetup when we didn’t have a pre-arranged topic/speaker.
We could also do a collective try out some new tool meetup. Live coding isn’t so bad among friends.
I like it.
i’m so bummed to have missed this. very much like this style
Best. Clojure. Event. Ever. And, no, there is no video. You should have been there.
had to be there are the best meetups
our prog1 with an anaphor of <> from metabase.util
Ah, that is nice. Mine is simple:
(defmacro returning
"Evaluate `body`, presumably for side effects, and return `v`. Like
Common Lisp's `prog1`."
{:style/indent 1}
[v & body]
`(let [v# ~v]
~@body
v#))I really wish we had a quasi-quote that didn’t resolve all symbols. Odd to me that there isn’t one.
remember desperately wanting that when we worked with datomic at a past job
i think there’s a brandombloom library to help with that?
That’s where I want it right now. 🙂 Yes, I think I’ve seen that. Didn’t really want to pull in something just for this.
i think that’s what we did as well. Each instance we thought “no need for a library for just a single query” but we said it 35 times … so not sure it is valid in the aggregate
Not being able to easily mix in evaluatable symbols in my quoted Datomic queries is definitely a hassle. The :in syntax is sometimes funky and feel verbose. I always wished I could do something like this:
'[:find ?foo :where [?foo :my/attr ~x]]
But you can only inline with the syntax-quote (“`”), which would break the rest of datomic query.
Yeah, I think they’re weird about it becomes they cache on the query (including the :in list), so they want it to be parametrizable and still cached but I totally agree that it feels verbose and funky. The positional name of the input collection gets annoying sometimes too.