Can anyone point to some code that has #C015LCR9MHD AND #C03S1KBA2 / #C03S1L9DN compatible macros? Is there an easy trick to it? For instance, writing macros for #C015LCR9MHD requires writing a ^:sci/macro function, whereas for normal clj/cljs it requires a normal macro written in clj. There's no #?(:sci ...) .cljc reader conditional (as far as I am aware (yet)). So curious if there is a best practice here to ship a library that is sci/#CLX41ASCS / #C03S1KBA2 / #C03S1L9DN compatible?

@goomba It depends what you want to achieve. In bb and clojure there are no differences between macros

But since there is no guarantee that a macro exists as a compiled thing in JS once you compiled your CLJS you often have to copy the macro code to a .cljs file if you want to configure it to work with SCI as pre-compiled macros. There is AFAIK no way around this.

But nbb, which is made with SCI, can run macros from source as well

So this is the config for promesa, which is a macro-heavy library: https://github.com/babashka/sci.configs/blob/main/src/sci/configs/funcool/promesa.cljs This configured is re-used in #scittle and #nbb and some other projects

Interesting. Now something like this: https://github.com/babashka/sci.configs/blob/main/src/sci/configs/funcool/promesa.cljs#L143 I'm assuming that will be treated like a regular function in a non sci context?

Yes

worrrd

ok that makes that easy

just write all macros like that

except in JVM clojure

there they behave like proper macros

but this is a .cljs file so it's just different there

I am a little unclear how macros work in sci with cljs. (def do-twice ^:sci/macro (fn [_&form _&env x] (list 'do x x))) That seems okay, but: (sci/eval-string "(do-twice (f))" {:bindings {'do-twice do-twice 'f #(println "hello")}}) I can see how that would work with one use of do-twice in the eval string, but what if there is more than one?