style: Implement complex :not().

This fixes the failures in bug 1671573 and just works thanks to the
invalidation improvements I did for :is / :where.

Added a couple tests for invalidation which is the tricky bit. 001 is a
very straight-forward test, 002 is the :is test but with :is() replaced
by double-:not().

This also fixes default namespaces inside :is() / :where(), which are
supposed to get ignored, but aren't. Added tests for that and for the
pre-existing :not() behavior which Chrome doesn't quite get right.

Differential Revision: https://phabricator.services.mozilla.com/D94142
This commit is contained in:
Emilio Cobos Álvarez 2020-10-29 18:03:54 +00:00
parent 7e6d70f314
commit 191d5226a3
6 changed files with 107 additions and 168 deletions

View file

@ -238,10 +238,10 @@ where
where
F: FnOnce(&mut Self) -> R,
{
debug_assert!(!self.in_negation, "Someone messed up parsing?");
let old_in_negation = self.in_negation;
self.in_negation = true;
let result = self.nest(f);
self.in_negation = false;
self.in_negation = old_in_negation;
result
}