I don’t think that’s my situation, but either way, do you have any suggestions for catching what’s actually happening here?

not a clue

it is extremely unlikely that this is actually a shadow-cljs problem

this is deep inside the clojure core code

so it is much more likely something goin on in your JVM that shouldn't be

how are you running things?

if you are connected over nREPL it might be the nREPL doing stuff

@U05224H0W it’s not always inside the clojure core code. I wish I could get a smaller way to reproduce, but: The project has 3 primary source directories: “shared” (cljc code) “src” (clojure code) “ui-src” (clojurescript code) There is a project.clj which specifies all 3 of these source paths in its source-paths key. This project.clj requires the latest version of clojurescript. In addition, there is a package.json and a shadow-cljs.edn. The shadow-cljs.edn has 3 builds in it, all of which are specified with :entries [the.ns]

The shadow watch is run with npx — shadowcljs 2.11.4 is specified in the package.json

Ugh. I am very embarrassed.

I accidentally IBM’s J9 OpenJDK, not the HotSpot version of AdoptOpenJDK

@U05224H0W I was able to get it to import with:

(:require ["@shoelace-style/shoelace/dist/custom-elements/index.js" :refer [defineCustomElements setAssetPath SlButton]])

(.define js/customElements "sl-button" SlButton)

ah if its web components you just do [:sl-button ...] like any other regular dom element

thats why the :refer and stuff may not actually exist because you don't need it if it already self-registers

Oh, I didn’t try with the : Now that I try that, it does inject <sl-button>… into the DOM now, but I’m getting a

Uncaught ReferenceError: regeneratorRuntime is not defined
index.js:2654 Uncaught ReferenceError: regeneratorRuntime is not defined
    at initializeComponent (index.js:2654)
    at _connectedCallback (index.js:2944)
    at HTMLElement.connectedCallback (index.js:3049)
    at commitPlacement (react-dom.development.js:8835)
    at commitAllHostEffects (react-dom.development.js:18656)
    at HTMLUnknownElement.callCallback (react-dom.development.js:150)
    at Object.invokeGuardedCallbackImpl (react-dom.development.js:200)
    at invokeGuardedCallback (react-dom.development.js:257)
    at commitRoot (react-dom.development.js:18914)
    at eval (react-dom.development.js:20419)

that likely means you are including transpiled code from babel

I think a require for regenerator-runtime might be enough

(:require ["regenerator-runtime"]) should do it in case you didn't try .. you said "refer" which would be incorrect

(maybe npm install regenerator-runtime first of course)

but the script tag is fine too I guess

Yep, (:require ["regenerator-runtime"])`` works great. Preferred to <script> tag Thanks again!

not native to shadow in particular, but if you use watchman-make you can do anything you want after files are changed e.g. watchman-make -p './src/***/**.cljs' -t release https://facebook.github.io/watchman/docs/watchman-make.html

(where release would be a target in your Makefile to run shadow-cljs release {target} )

Thanks @U5RFD1733, I opted for the inotifywait route as I already had that installed and didn't need to download anything new 🙂

oh for sure, there's a billion watchers out there. yay unix :)