Here is a demo for Rum. Note: the code is in a string only for the demo. In a real config it’s going to be placed inside its own file.
(ns foo
{:clj-kondo/config '{:macroexpand {rum/defc "
(def f (fn [{:keys [:sexpr]}]
(let [args (rest sexpr)
component-name (first args)
args (next args)
body
(loop [args* args
mixins []]
(if (seq args*)
(let [a (first args*)]
(if (vector? a)
(cons a (concat mixins (rest args*)))
(recur (rest args*)
(conj mixins a))))
args))]
{:sexpr (with-meta (list* 'defn component-name body)
(meta sexpr))})))
"}}}
(:require [rum]))
(rum/defc with-mixin
< rum/static
[context]
[:div
[:h1 "result"]
[:pre (pr-str context)]])
(with-mixin 1) ;; no unresolved symbol
(with-mixin a a a a) ;; unresolved symbol and arity error for with-mixin
