1342547 - (css-apply-rule) Support CSS @apply rule (using CSS variables as mixins)

Status: RESOLVED WONTFIX

(Core :: CSS Parsing and Computation, enhancement, P5)

Description

[Zéfling]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0
Build ID: 20170224110129

Steps to reproduce:

A bug for this draft allows to extend the possibility of CSS Variables
- http://tabatkins.github.io/specs/css-apply-rule/
- http://caniuse.com/#feat=css-apply-rule

It's like the duo of SASS rules: @mixin/@include

Comment 1

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

I think we'd at least want the spec to be taken up by the working group.  (Or did the WG already agree to that and it just hasn't moved?)

Comment 2

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

The only CSS minutes I found on the topic are:
https://lists.w3.org/Archives/Public/www-style/2015Sep/0041.html
which were summarized as:
>@apply rule
>-----------
>
>  - TabAtkins brought his proposal for an @apply rule to the group,
>      available here: http://tabatkins.github.io/specs/css-apply-rule/
>  - The overall reception was positive, but there were concerns
>      about the feasibility of certain behaviors due to how style
>      resolution works.
>      TabAtkins will work on solving those problems before he brings
>      the proposal back to the group.

Comment 3

[Mats Palmgren (inactive)]

Fwiw, it appears TabAtkins changed his mind since then though:
https://discourse.wicg.io/t/needed-new-champion-for-css-apply-rule/2012

Comment 5

[ExE Boss]

Well, the spec is now abandoned, so this feels like a WONTFIX to me.

See also:

• https://www.xanthir.com/b4o00