Unused script setup directives

[jods4]

Volar doesn't seem to be aware that imported directives inside script-setup are used in template.

(Maybe it's because the final version of script setup was changed to require a v prefix to local directives?)

[johnsoncodehk]

I can't reproduce, please provide a repro case by https://github.com/johnsoncodehk/volar-starter.

[jods4]

@johnsoncodehk do you have TS option noUnusedLocals active?
The most basic example does it for me, see this repro:
https://github.com/jods4/bug-volar-directive/blob/master/main.vue

Which looks like this in my VS Code:

TS 4.3.5
Volar 0.26.8

[jods4]

I found a possibly related bug (mentioned above) in the vue compiler itself that would ignore imported local directives with a capital V when lang="ts" (yes, I know, it's pretty specific).

Just want to point out that this is not the complete issue when it comes to Volar.
Using a lowercase v works around the problem in Vue SFC compiler, but not in Volar as demonstrated in the following screenshot:

[johnsoncodehk]

This use case is not yet support in volar, I don't know how this working currently. I will check it, if you can provide more use cases I can resolve it earlier. (I need to confirm how should type-checking working in directives expression.)

[jods4]

I'm sorry, I don't think I can help more than that.
I suppose it should work as local components?

[johnsoncodehk]

I did not use this before so I can't say. I will check it.