Lazily create the rule list since most style rules won't have child
rules.
Remaining failures in the cssom tests are tracked in other bugs.
Differential Revision: https://phabricator.services.mozilla.com/D180649
Lazily create the rule list since most style rules won't have child
rules.
Remaining failures in the cssom tests are tracked in other bugs.
Differential Revision: https://phabricator.services.mozilla.com/D180649
The specifics of how this is going to work are still getting spec'd /
discussed in https://github.com/w3c/csswg-drafts/issues/6576, but this
allows DevTools to work fine and the feature to be complete enough for
Nightly experimentation (with the other in-flight patches).
Otherwise devtools crashes when trying to inspect pages that use them.
Differential Revision: https://phabricator.services.mozilla.com/D124656
Instead, fix up the various content data structures when the stylesheet
is mutated. This makes reading a stylesheet not disable style sharing.
Differential Revision: https://phabricator.services.mozilla.com/D115203
Instead, fix up the various content data structures when the stylesheet
is mutated. This makes reading a stylesheet not disable style sharing.
Differential Revision: https://phabricator.services.mozilla.com/D115203
Instead, fix up the various content data structures when the stylesheet
is mutated. This makes reading a stylesheet not disable style sharing.
Differential Revision: https://phabricator.services.mozilla.com/D115203
Instead, fix up the various content data structures when the stylesheet
is mutated. This makes reading a stylesheet not disable style sharing.
Differential Revision: https://phabricator.services.mozilla.com/D115203
Instead, fix up the various content data structures when the stylesheet
is mutated. This makes reading a stylesheet not disable style sharing.
Differential Revision: https://phabricator.services.mozilla.com/D115203
This lifts a bunch of string conversions higher up the stack, but allows
us to make the servo code use utf-8 unconditionally, and seemed faster
in my benchmarking (see comment 0).
It should also make a bunch of attribute setters faster too (like
setting .cssText), now that we use UTF8String for them (we couldn't
because we couldn't specify different string types for the getter and
setters).
Differential Revision: https://phabricator.services.mozilla.com/D99590
Emilio Cobos Álvarez