Move modifier of not-*, has-*, and in-* variant to sub variant
#19100
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RobinMalfait
commented
Oct 9, 2025
These variants now forward modifiers, so we need to make sure that parsing, and later re-printing results in the exact same thing as we started with.
That way `not-group-hover/name:flex` is actually parsed as a `not` and a `group-hover/name` instead of a `not/name` and `group-hover`.
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RobinMalfait
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not and has variant to sub variantnot-*, has-*, and in-* variant to sub variant
thecrypticace
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Oct 9, 2025
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This PR fixes an issue where a compound variant with a modifier such as
not-group-hover/name:flexwould not generate anything because the/namemodifier belongs to thenotvariant, and not the compoundedgroup-hovervariant.This PR is a workaround (and definitely not perfect) by special casing the
not,has, andinvariants such that their modifiers are moved internally to the sub variant as-if the/nameexisted ongroup-hover.We don't do it for other compound variants such as
groupandpeerbecause thengroup-peer-focus/name:underlinewould result in a breaking change:In case the diff is not clear, the name has moved:
This is also a limited workaround, because if you need multiple modifiers it won't work. I would've loved to special case this inside the
not,has, andincode that handles these variants, but we handle the variants in a depth-first way, so by the time you are handling thenotvariant, the sub variant was already handled...In a perfect world, you can use something like
not-group/name-hoverbut then it becomes unambiguous because isnamethe name, isname-hover?Test plan
Added a new test that wouldn't generate anything before this fix.
Fixes: #15772