Report more informative CSS errors
This requires https://github.com/servo/rust-cssparser/pull/143 for the final commit. There's no better way to split that work up, unfortunately, and it's extremely easy to bitrot. I would appreciate if we could expedite reviewing this work.
This is the work necessary to enable https://bugzilla.mozilla.org/show_bug.cgi?id=1352669. It makes sense to merge it separately because it's so much effort to keep it up to date with the ongoing Stylo work.
---
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [x] There are tests for these changes
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/16752)
<!-- Reviewable:end -->
animation_type takes following values:
animation_type="none" for non-animatable properties
animation_type="normal" for animatable properties
animation_type="discrete" for animatable but discrete type of animations
We use string value to distinguish the case where no animation_type is
specified.
animation_type="discrete" will be used in a subsequent patch to make a property
animatable as discrete type.
Implement from(StyleComplexColor) for ColorOrAuto. Thanks @emilio. (+4 squashed commits)
Squashed commits:
[baf7cc0] Add clone to caret-color
[9cb82ca] Correctly call methods to copy a color in a SympleComplexColor and getting its auto
[c483f07] Add set and copy functions for caret_color
[0aa20be] Move caret-color and set its product property to gecko
This allows us to control whether the catchall case in the match expression
that maps Gecko const to Servo enum will be generated.
MozReview-Commit-ID: L65IjTONdfl
While we're here we also:
* remove any code conditional on style_struct.gecko_ffi_name, since all
style structs now do have a corresponding Geckos struct
* add new UIReset and XUL style structs, so that all Gecko structs are
now present (apart from Variables, which is special)