feat: add useCSSModule api

[yoyo930021]

Fixed #21

[antfu]

Thanks for the PR!

But sorry I don't think it belongs to the Composition API. And since it only relies on the public API getCurrentInstance, I think you can create a library of it and publish to npm for people to use. :) Sorry, my bad.

[yoyo930021]

It is built-in in vue-next. Code link
So it will help us migrate to Vue 3.

[pikax]

Can you add some tests?

[yoyo930021]

Can you add some tests?

Hmm...
I cannot find related tests in vue-next.

We maybe need vue-loader and compile SFC file for the test.
I will study when free time.

[antfu]

LGTM, thanks.

I don't think tests are must-have here since the only thing it does is to expose an attribute. It mainly depends on the bundling environments, setting up tests for this particular case costs a bit too much but little to gain.

[yoyo930021]

LGTM, thanks.

I don't think tests are must-have here since the only thing it does is to expose an attribute. It mainly depends on the bundling environments, setting up tests for this particular case costs a bit too much but little to gain.

I agree with you,
So I didn't add any tests at the first time.
😆

[dodas]

Is there some documentation, explaining how this should be used?
Thanks.

[antfu]

@dodas https://vue-loader.vuejs.org/guide/css-modules.html

[dodas]

Ahh, so useCssModule() just returns what you currently have under this.$style, right?
Thanks.

[antfu]

Yes