Most of the change is moving sets around to be static functions on
LonghandIdSet. I think I like that pattern, but I can also make the new set a
global static and add mako code to be `pub` or something.
Though I think the LonghandIdSet::foo().contains(..) pattern is nice to read :)
Differential Revision: https://phabricator.services.mozilla.com/D10653
There are a few mentions of nsRuleNode left but they are mostly
historical references so it makes sense to keep them.
Differential Revision: https://phabricator.services.mozilla.com/D5505
I didn't bother not shifting there. We need to load the whole thing and shift
for at least one of cascade level / shadow cascade order.
Callers of level() other than for_rule_tree are non-existent in release builds,
so we'd be doing the shift anyway. I can implement the same thing for
shadow_cascade_order too, but I don't think that optimization is measurable in
any way, either, the compiler should make the decision.
And just in case, the simpler version actually generated less instructions in:
https://play.rust-lang.org/?gist=ceadb0d3cbce4eeca76e4d9ab9a1c744&version=nightly
with the simple thing.
Bug: 1455032
Reviewed-by: heycam
MozReview-Commit-ID: 8xPBJmlcyKh
No cleaner ideas right now that carrying that counter around... Maybe a custom
type may be cleaner?
This makes ApplicableDeclarationBlock a bit bigger. I could probably try to make
the counter a 4 / 5-bit number or something and pack the counter there in the
SourceOrderAndCascadeLevel somehow...
But doesn't seem really worth the churn, and can be done as a followup in any
case. Let me know if you want to block on that.
Bug: 1454162
Reviewed-by: heycam
MozReview-Commit-ID: 1LdW9S4xA6f
In Gecko, we handle XBL rules like author rules everywhere, except that
XBL rules are added and sorted in an independent step, behave as if it
has a separate level.
It is not clear to me why Stylo chose to add a separate level for XBL
rules, but it doesn't seem that there is anything special to do with
XBL rules.
This bug happens because we don't handle XBL important rules which are
handled as part of author rules in Gecko due to lack of the additional
level there. We should just follow what Gecko does here and handle them
all the same.
Add an FFI to create a temporary ServoStyleContext with the animation value.
We need this because we calculate the Cumulative change hints to check
if we can ignore this animation segment.
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 makes the MallocSizeOf stuff in Stylo work more like the HeapSizeOf
stuff already in Servo, except better. In particular, it adds deriving support
for MallocSizeOf, which will make it easier to improve coverage.
The patch does the following.
- Combines servo/components/style/stylesheets/memory.rs and the heapsize crate
into a new crate, malloc_size_of.
- Forks the heapsize_derive crate, calling it malloc_size_of, so that
MallocSizeOf can be derived.
- Both the new crates have MIT/Apache licenses, like heapsize, in case they are
incorporated into heapsize in the future.
- Renames the methods within MallocSizeOf and the related traits so they are
more concise.
- Removes MallocSizeOfWithGuard.
- Adds `derive(MallocSizeOf)` to a lot of types, in some cases replacing an
equivalent or almost-equivalent hand-written implementation.
- Adds stuff so that Rc/Arc can be handled properly.
Make the order of rules in DevTools be the specificity order.
We insert rules with any important declaration into rule tree twice,
one for the normal level and another for the important level. And
when we fetch them from rule tree, we skip the important one to
make the order be the specificity order.
<!-- Please describe your changes on the following line: -->
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix [Bug 1391198](https://bugzilla.mozilla.org/show_bug.cgi?id=1391198)
<!-- Either: -->
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because test cases already in gecko
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- 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/18337)
<!-- Reviewable:end -->
We insert rules with any important declaration into rule tree twice,
one for normal level and another for important level. And when we fetch
them from rule tree, we skip the important one to make the order be
MozReview-Commit-ID: HewZG6jYVvv
The alias is left there temporarilly and will be removed completely in a later commit where
also components/style/gecko/generated/structs_{debug|release}.rs are re-generated (they still
use the old alias).
This is unfortunate, but for now it complicates things, I would like not needing
a ElementData to get the style of an Element in order to fix all the
getDefaultComputedStyle bugs.
MozReview-Commit-ID: LZvsdFEqrDE
