There are several optimizations here:
* We make font families atoms, to allow for quicker comparisons.
* We precalculate an FNV hash of the relevant fields of the font style
structure.
* When obtaining a platform font group, we first check pointer equality
for the font style. If there's no match, we go to the FNV hash. Only
if both caches miss do we construct and cache a font group. Note that
individual fonts are *also* cached; thus there are two layers of
caching here.
15% improvement in total layout thread time for Facebook Timeline.
r? @glennw (since you last worked on `get_layout_font_group_for_style()` IIRC)
Source-Repo: https://github.com/servo/servo
Source-Revision: ba0d28e0023fce2003d64b9caf97fcdbeb7cdb28
Ready for review.
Final link step on android fails, but we know how to fix it and will add it to this branch soon.
Source-Repo: https://github.com/servo/servo
Source-Revision: 2cc08f289ab909de44fa09a07b2c43b70ce379b9
(Still off by default. Enable with `RUST_LOG=style`.)
r? @mbrubeck
Source-Repo: https://github.com/servo/servo
Source-Revision: 172aed535be3c34775824dac64ad2b91fc379ad5
In particular, this contains changes to qualify enums where rust will require it, and to stop using some features that will be removed.
Source-Repo: https://github.com/servo/servo
Source-Revision: ba8cf6b0e6145265f9472d4855f078d8b5943fe7
This prepares for the rust upgrade currently being conducted.
Source-Repo: https://github.com/servo/servo
Source-Revision: e8fac3681b690adb0796b2a807ac95bd9c13597a
The biggest language change is that enum variants now also reserve (for future use) a name in the type namespace, which must not collide with other types. Some things were renamed, and others qualified as `module::name`.
Source-Repo: https://github.com/servo/servo
Source-Revision: 7409685589c550ee7a9f94182f511acddab4c6fd
