Async SFCs with <script setup> issue when using single-line if statement with top level await

[dsine-de]

Version

16.4.1

Reproduction link

github.com

Steps to reproduce

Clone the reproduction repository, run npm i and npm run dev and then open http://localhost:8080/ while viewing the JavaScript console output.

What is expected?

The console.error() in vue/child.vue should never be executed because the if-condition before the await is always false.

What is actually happening?

The console.error() is being executed when the if statement is written as a single-line (if-statement with curly brackets works though).

---

It's possible that it's actually an issue with babel / babel-loader or vue and not vue-loader.

[dsine-de]

I removed all packages related to babel and eslint and the issue still persists.

[dsine-de]

I opened an issue on the vue-next repository since this probably isn't a issue of the loader itself: vuejs/core#4596