Servo currently uses `heapsize`, but Stylo/Gecko use `malloc_size_of`.
`malloc_size_of` is better -- it handles various cases that `heapsize` does not
-- so this patch changes Servo to use `malloc_size_of`.
This patch makes the following changes to the `malloc_size_of` crate.
- Adds `MallocSizeOf` trait implementations for numerous types, some built-in
(e.g. `VecDeque`), some external and Servo-only (e.g. `string_cache`).
- Makes `enclosing_size_of_op` optional, because vanilla jemalloc doesn't
support that operation.
- For `HashSet`/`HashMap`, falls back to a computed estimate when
`enclosing_size_of_op` isn't available.
- Adds an extern "C" `malloc_size_of` function that does the actual heap
measurement; this is based on the same functions from the `heapsize` crate.
This patch makes the following changes elsewhere.
- Converts all the uses of `heapsize` to instead use `malloc_size_of`.
- Disables the "heapsize"/"heap_size" feature for the external crates that
provide it.
- Removes the `HeapSizeOf` implementation from `hashglobe`.
- Adds `ignore` annotations to a few `Rc`/`Arc`, because `malloc_size_of`
doesn't derive those types, unlike `heapsize`.
This patch replaces the handwritten MallocSizeOf implementation for
PropertyDeclaration with a derived one, which gives much more thorough
measurement.
This requires (a) deriving MallocSizeOf for a *lot* of additional types (most
of which already have `derive(HeapSizeOf)` in Servo builds), and (b)
implementing MallocSizeOf for a few more types in the `malloc_size_of` crate.
These changes would significantly improve the reporting coverage for gmail if
it weren't for the fact that SpecifiedUrl isn't measured due to a lack of
clarity about its fields; that can be fixed as a follow-up once bug 1397971 has
landed.
Make Servo's rounding of image-orientation values agree with Gecko's,
and pass orientations directly as an enum instead of as angles.
Depends on a Gecko change to be subsequently landed in m-c.
Make stylo recognize -moz-crisp-edges keyword.
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See [Bug 1354000](https://bugzilla.mozilla.org/show_bug.cgi?id=1354000).
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- [X] These changes fix [Bug 1354000](https://bugzilla.mozilla.org/show_bug.cgi?id=1354000)
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- [X] These changes do not require tests because the they're in gecko.
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First, we need to make Servo's image-orientation parser to be agreed with Gecko's.
Numbers without any AngleUnit, including unitless 0 angle, should be invalid
for image-orientation. However, rotate() and skew() for transform properties
accept unitless 0 angle. In order to make all these properties work properly,
I fixed Angle::parse() to match Gecko. For the existing users of Angle::parse(),
I create Angle::parse_with_unitless() and use it as an alternative for them.
Once https://github.com/w3c/csswg-drafts/issues/1162 is resolved, we shall be
able to use an unified version of Angle::parse() then.
The parser of image-orientation is also fixed to report parsing errors on
empty string.
Then, with the newly added binding functions support in Gecko side, we shall
reuse the same methods from Gecko to pass the computed value from Servo to Gecko.
Gecko bug: Bug 1341758
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.
Remove incomplete and buggy support for text-orientation in Servo.
Make the property values align with Gecko and the latest draft of CSS
Writing Modes Level 3.
Because this is a bottom-up traversal it can generates flows and throw them away. To prevent that, this cascades an internal `-servo-under-display-none` property and then checks that during flow construction. Fixes#1536.
