require-typed-object-prop reports on non-TypeScript <script setup>

[andreww2012]

Checklist

• I have tried restarting my IDE and the issue persists.
• I have read the FAQ and my problem is not listed.

Tell us about your environment

• ESLint version: 9.6.0
• eslint-plugin-vue version: 9.27.0
• Vue version:
• Node version:
• Operating System:

Please show your full configuration:

What did you do?

Sorry for not filling out everything, I think the problem is straightforward and easily reproducible: require-typed-object-prop does not respect the lang attribute on <script setup> and expects type annotation to be present in plain JS code.

Just insert the following in the playground on this rule's page:

<script setup>
defineProps({
  prop: Object,
})
</script>

I've read the limitations section on the rule's page saying it is not meant to be used in JS projects, but I have some with mixed codebase (mainly as a result of TS migration or adjusting someone else's components code written in JS) and I just felt like detecting the language is something that seems possible to me.

What did you expect to happen?

What actually happened?

Repository to reproduce this issue

[FloEdelmann]

Thanks for reporting, I can reproduce the issue. PR welcome to fix this! Nevermind, I created a fix myself.