We need to pass these two types into the compositor, so we need a better
way to serialize these rust types. We use serde and bincode to
serialize/deserialize them, and use ByteBuf to pass the &[u8] data
through IPC. We define StyleVecU8 for FFI usage only.
Differential Revision: https://phabricator.services.mozilla.com/D50688
--HG--
extra : moz-landing-system : lando
Note that we also drop the dead optional aReusableSheets argument from
the async parsing path, since it was always null.
MozReview-Commit-ID: KddpGFdaqEe
Use `cstr!()` macro with `CStr` to ensure that literal strings used with FFI is properly nul-terminated to avoid cases like #19915.
Source-Repo: https://github.com/servo/servo
Source-Revision: 5af219e8188f2e657c5711eb5def4c8e8065e29d
--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : fb6a22714c7b8ff534181e54c265fca24da7873b
We already have https://github.com/servo/servo/pull/19612 to deny warnings at the time of landing into master. But it’s not useful to break the build when later compiler with a more recent Rust version that has introduced new warnings:
https://bugzilla.mozilla.org/show_bug.cgi?id=1434619
Source-Repo: https://github.com/servo/servo
Source-Revision: 7546c37f1e921a112fef5828c59c6738a98c3f30
--HG--
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extra : subtree_revision : ed5c34f72e321ce0051347bd5156389d1ef26bef
These diagnostics have served their purpose, time to remove them.
https://bugzilla.mozilla.org/show_bug.cgi?id=1403397
Source-Repo: https://github.com/servo/servo
Source-Revision: 0b69887387567d1bbaa93fe874014a925ef9fe05
--HG--
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https://bugzilla.mozilla.org/show_bug.cgi?id=1402219
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--HG--
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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.
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--HG--
rename : servo/components/hashglobe/LICENSE-APACHE => servo/components/malloc_size_of/LICENSE-APACHE
rename : servo/components/hashglobe/LICENSE-MIT => servo/components/malloc_size_of/LICENSE-MIT
rename : servo/components/jstraceable_derive/Cargo.toml => servo/components/malloc_size_of_derive/Cargo.toml
rename : servo/components/hashglobe/LICENSE-APACHE => servo/components/malloc_size_of_derive/LICENSE-APACHE
rename : servo/components/hashglobe/LICENSE-MIT => servo/components/malloc_size_of_derive/LICENSE-MIT
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https://bugzilla.mozilla.org/show_bug.cgi?id=1385089
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--HG--
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The `stylearc` alias is left there temporarilly and will be removed completely in a later commit/PR where also `components/style/gecko/generated/structs_{debug|release}.rs` are re-generated (they still use the old alias).
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--HG--
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Reviewed by @emilio in https://bugzilla.mozilla.org/show_bug.cgi?id=1352669.
---
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--HG--
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This is a PR for https://bugzilla.mozilla.org/show_bug.cgi?id=1360776
- [X] `./mach build -d` does not report any errors
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- [X] These changes do not require tests because it's for stylo.
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--HG--
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Before this PR, every object reflected in CSSOM is in `Arc<RwLock<_>>` to enable safe (synchronized) mutable aliasing. Acquiring all these locks has significant cost during selector matching:
* https://bugzilla.mozilla.org/show_bug.cgi?id=1311469
* https://bugzilla.mozilla.org/show_bug.cgi?id=1335941
* https://bugzilla.mozilla.org/show_bug.cgi?id=1339703
This PR introduce a mechanism to protect many objects with the same `RwLock` that only needs to be acquired once.
In Stylo, there is one such lock per process (in a `lazy_static`), used for everything.
I non-Stylo Servo, I originally intended to have one such lock per document (for author-origin stylesheets, and one per process for user-agent and user sytlesheets since they’re shared across documents, and never mutated anyway). However I failed to have the same document-specific (or pipeline-specific) `Arc` reachable from both `Document` nodes and `LayoutThread`. Recursively following callers lead me to include this `Arc` in `UnprivilegedPipelineContent`, but that needs to be serializable. So there is a second process-wide lock.
This was previously #15998, closed accidentally.
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--HG--
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This is the Servo side changes of [bug 1345698](https://bugzilla.mozilla.org/show_bug.cgi?id=1345698).
Source-Repo: https://github.com/servo/servo
Source-Revision: 9986b42333a7438c02debd7fe8395a5c146a58df
--HG--
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By having a single thread pool, rather than one per document, we use less memory. This addresses https://bugzilla.mozilla.org/show_bug.cgi?id=1324250.
This may be obvious to an experienced Rust programmer, but I went with raw pointers because trying to use `Option` global variables resulted in complaints about turning on feature flags in nightly Rust. Since this is for stylo, nightly features are not appropriate here.
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--HG--
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r? @SimonSapin or @mbrubeck
cc @heycam and @bholley
Source-Repo: https://github.com/servo/servo
Source-Revision: 38f136175e15acb6472466d141dedb6a253b0330
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Still needs a bunch of code in net to be converted in order to get more
advantage of this for images and stuff, but meanwhile this should help quite a
bit with #13778.
Still wanted to get this in.
r? @SimonSapin
Source-Repo: https://github.com/servo/servo
Source-Revision: 22aebdf5d41a3509cd6515ccf5edcdf33715a76d
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This will allow types to be generic over our local `ToCss`
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Source-Revision: f48b3fe2197a59b29bc711fb1b5496cbb97bd330
Warnings have been piling up in the style system, and making it harder to tell when new warnings are introduced. I think we should tighten up on them.
CC @emilio @Manishearth @SimonSapin @heycam @pcwalton @metajack @larsbergstrom
Source-Repo: https://github.com/servo/servo
Source-Revision: e597719b73ff4ed58fb6628b6f998cab4058583c
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As discussed in https://bugzilla.mozilla.org/show_bug.cgi?id=1305141Closes#13176
---
Original PR title: Stop relying on `impl<T: HeapSizeOf> HeapSizeOf for Arc<T>`
https://github.com/servo/heapsize/issues/37#issuecomment-249861171
This builds on top of that.
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Source-Revision: aea9545e16fd6ea4a6b1234d1b969457313a5fa7
--HG--
rename : servo/components/style/domrefcell.rs => servo/components/script/dom/bindings/cell.rs
@canaltinova needs this for his mask work -- we need a way to test stylo code (or style code that's conditionally compiled out for gecko)
We can add this to the CI as well.
r? @emilio
Source-Repo: https://github.com/servo/servo
Source-Revision: 66c736194d1a6d3af1303a070aa96fec4534187c
--HG--
rename : servo/ports/geckolib/sanity_checks.rs => servo/tests/unit/stylo/sanity_checks.rs
This removes the `[replace]` override in geckolib and therefore unblocks https://github.com/servo/servo/pull/12391.
This includes the `gecko_string_cache` redesign discussed in https://github.com/servo/servo/pull/12548.
r? @bholley
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r? @bholley
cc @heycam
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This is a rewrite for how style interfaces with its consumers in order to allow
different representations for an element snapshot.
This also changes the requirements of an element snapshot, requiring them to
only implement MatchAttr, instead of MatchAttrGeneric. This is important for
stylo since implementing MatchAttrGeneric is way more difficult for us given the
atom limitations. This also allows for more performant implementations in the
Gecko side of things.
I don't want to get this merged just yet, mainly because the stylo part is not
implemented, but I'd like early feedback from @bholley and/or @heycam: How do
you see this approach? I don't think we'll have much problem to implement
MatchAttr for our element snapshots, but... worth checking.
r? @heycam
Source-Repo: https://github.com/servo/servo
Source-Revision: 1e0321f7dde5f33f7d26bbd4f088622fa3660477
Background:
The changes to Servo code to support Stylo began in the `selectors` crate with making pseudo-elements generic, defined be the user, so that different users (such as Servo and Gecko/Stylo) could have a different set of pseudo-elements supported and parsed. Adding a trait makes sense there since `selectors` is in its own repository and has others users (or at least [one](https://github.com/SimonSapin/kuchiki)).
Then we kind of kept going with the same pattern and added a bunch of traits in the `style` crate to make everything generic, allowing Servo and Gecko/Stylo to do things differently. But we’ve also added a `gecko` Cargo feature to do conditional compilation, at first to enable or disable some CSS properties and values in the Mako templates. Since we’re doing conditional compilation anyway, it’s often easier and simpler to do it more (with `#[cfg(feature = "gecko")]` and `#[cfg(feature = "servo")]`) that to keep adding traits and making everything generic. When a type is generic, any method that we want to call on it needs to be part of some trait.
----
The first several commits move some code around, mostly from `geckolib` to `style` (with `#[cfg(feature = "gecko")]`) but otherwise don’t change much.
The following commits remove some traits and many type parameters through the `style` crate, replacing them with pairs of conditionally-compiled API-compatible items (types, methods, …).
Simplifying code is nice to make it more maintainable, but this is motivated by another change described in https://github.com/servo/servo/pull/12391#issuecomment-232183942. (Porting Servo for that change proved difficult because some code in the `style` crate was becoming generic over `String` vs `Atom`, and this PR will help make that concrete. That change, in turn, is motivated by removing geckolib’s `[replace]` override for string-cache, in order to enable using a single Cargo "workspace" in this repository.)
r? @bholley
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Source-Revision: 2d01d41a506bcbc7f26a2284b9f42390d6ef96ab
--HG--
rename : servo/ports/geckolib/selector_impl.rs => servo/components/style/gecko_selector_impl.rs
rename : servo/ports/geckolib/values.rs => servo/components/style/gecko_values.rs
rename : servo/ports/geckolib/properties.mako.rs => servo/components/style/properties/gecko.mako.rs
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r? @bholley
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This marshaling is slow, because Gecko stores attributes as UTF-16 and does not atomize them in all cases, and it turns out that the need for them in Servo is pretty minimal. With some refactoring across servo and rust-selectors we can fix this.
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As a follow-up, we could move all the data living under a mutex in the
SharedLayoutContext only in order to create the local context to the same place.
This should increase animation performance when there are multiple animations in
one page that happen to be on different threads.
r? @SimonSapin/@mbrubeck for the style/layout, @bholley for the geckolib changes
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This allows removing `#![feature(as_unsafe_cell)]` in geckolib and make progress towards #11815.
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The bulk of this is adding cargo features to make derived implementations of `heapsize` and `serde` traits optional.
"Almost" because `std::intrinsics::discriminant_value` is currently unstable and doesn’t have any stable replacement that I know of. For now, this PR conditionally replaces it with `unimplemented!()`.
r? @nox
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This has a big hard-coded `match` instead of a generated one because Servo's Cursor enum is not generated by Mako code; instead it's in `style_traits` where it can be shared with Servo's gfx and windowing code.
We *could* move this mapping into the macro that generates the Cursor enum, but it would either involve the same amount of code duplication, or make style_traits depend on gecko_bindings. I'm not really sure which is best; open to suggestions.
r? @emilio
Source-Repo: https://github.com/servo/servo
Source-Revision: 2cfef1391f53723aadb3f5225e3eaf3d155002d4
Boris Chiou
Cameron McCormack
Emilio Cobos Álvarez
shindli
sotaro
Bobby Holley
Xidorn Quan
Simon Sapin
Hiroyuki Ikezoe
Nicholas Nethercote
Michael Partheil
Josh Matthews
Manish Goregaokar
Nathan Froyd
Emilio Cobos Álvarez
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