sv migrate svelte-5 drops comments

[twm]

Describe the bug

I ran npx sv migrate svelte-5 and noticed that it dropped some comments when rewriting export let to an interface and let { ... } = $props():

https://github.com/twm/halo/pull/15/files#diff-cf3bf5049b1517a4c3a95040b9beebd97024d0d808c5f6aac6b5e1f2555b3c69L30-R33

Reproduction

Run npx sv migrate svelte-5 on twm/halo@e26f3e6

When I did so I got sv@0.6.1

Logs

No response

System Info

I ran this command but the output was garbage — it thought there was a container (nope!) and failed to identify the installed browsers correctly. I'm on Ubuntu 24.04 x86-64.

Severity

annoyance

[rgon]

It sems that previous-line comments are kept, while same-line comments are not:

	export let step: number | null = null // In-line comments are not kept
	// Previous-line comments are kept
	export let required: boolean = false

Click on Migrate in the component in: REPL