Use conditional compilation for stylo properties; output unimplemented logs for all properties
Till now we were only emitting unimplemented property logs for properties which servo implements but stylo doesn't.
This list is getting smaller, and we really should be emitting this for any unexpected property we encounter.
I also made it so that longhands which stylo does not implement will not be compiled in stylo builds; instead of what we currently do,
which is to parse them and then basically ignore the result.
There are still a few exceptions -- we generate stubs for properties that are parts of shorthands because otherwise we'd have to add fiddly conditional compilation to the shorthand code.
r? @bholley
cc @emilio
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We had code relying on `nsStyleCoord::set()` being leaky (like it was before we
patched up the calc bindings). Added `nsStyleCoord::null()` for this use case
since it's not possible to construct directly anymore.
12902 typedefs
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Using type alias instead of newtype.
Removing duplicated implementation, it's already inherited.
No more type constructors and foo.0
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Support 'word-spacing' for geckolib
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style: Add support for parsing and serialization of <basic-shape>s
Still WIP: I still need to use this somewhere and make serialization minimal. I'm not sure if I should do either in this PR.
The only other browser that handles basic shapes doesn't serialize correctly either (https://bugzilla.mozilla.org/show_bug.cgi?id=1290864), so that's not something we need to get done now.
As far as using this somewhere, I have the following options:
- Merge this now, work on using it in stylo in a followup.
- Just write extensive unit tests for parsing/serialization for now (stylo in a followup)
- Use this for clip-path in stylo only (which I intend to do anyway, just not sure if I should do it in this PR)
- Use this for clip-path in Servo (I'd rather not do this; this would be a huge change requiring a lot more layout knowledge than I currently have)
Thoughts? Review? @SimonSapin @bholley
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Add support for background-position in geckolib.
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r? @Manishearth
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