clojurescript 2024-04-22

hifumi12322:04:16

Suppose I am writing a library that supports Clojure and ClojureScript. The library exports a macro. Most ClojureScript users are not using self-hosted ClojureScript, so it makes sense to define macros in a cljc file by keeping defmacro forms in Clojure. However, in the case of self-hosted ClojureScript, we want these macros, too. So rather than

#?(:clj (defmacro ...))

we would want

(defmacro ...)

directly in a CLJC file. Is there harm in doing this when consuming the library from non-self-hosted CLJS? I’ve always had the habit of avoiding defmacro forms in CLJS code entirely, so I am not sure what the behavior is.

john22:04:26

You'll probably want to use https://github.com/cgrand/macrovich

john22:04:09

Or maybe this https://github.com/mfikes/chivorcam

thheller23:04:25

none of those are required to make self hosted macros

thheller23:04:55

and yes, the answer is to just use defmacro as-is. it just works and doesn't hurt not self-hosted builds in any way

thheller23:04:25

(shadow-cljs automatically elides defmacro from CLJS compilation anyway)

👍 1

2024-04-22

Channels