Bug 1400459 devirtualized nsIAtom so that it is no longer a subclass of
nsISupports. This means that nsAtom is now a better name for it than
nsIAtom.
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This is the Servo-side PR for https://bugzilla.mozilla.org/show_bug.cgi?id=1400460.
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This fixes bugzilla bug [1403170](https://bugzilla.mozilla.org/show_bug.cgi?id=1403170).
We've missed a few updates of the nsstring bindings in servo compared to the changes in gecko, so we really ought to find a better solution than these manual updates. For example, recently the way flags in nsstring are implemented was completely redone, and this version wasn't updated. It happened to be that the representation of the new form was identical to the old one, so it wasn't a problem, but technically this was wrong.
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Source-Revision: e68509b2e37983179a33c9f8cf4ad41c8a85d9a9
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.
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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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One of Stylo's common assertion turns out to be from having a null Atom (see [Gecko 1385925 bug comment 7](https://bugzilla.mozilla.org/show_bug.cgi?id=1385925#c7)). It would be helpful if we can catch this kind of crash earlier via a release-assertion.
This may regress performance to some extent which I'm not sure. But we can probably have it there for diagnosis for now, and remove later.
Source-Repo: https://github.com/servo/servo
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Automatically verify that derive() lists are alphabetically ordered #18172
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Source-Revision: 474369618965569407d127b1e8c481e757cc59d3
This will allow my work in bug 1362338 to not break stylo.
Source-Repo: https://github.com/servo/servo
Source-Revision: 3c644ea616ba3f614a00834327e3b0196daaf406
This just addresses my review comments in #17427, and removes a wrong optimization I added in #17429 thinking it was correct.
Source-Repo: https://github.com/servo/servo
Source-Revision: b50cf33efd67fe319aaccb94b476d473901c79d8
This reverts commit 3d40b516c8ac6e946cadace2378581cbac7b1e1b, reversing
changes made to 255387a915ef83db6b11d976f89c10b518c97487.
Source-Repo: https://github.com/servo/servo
Source-Revision: d40b26202db6b194472100d97b5398a73aa1dacc
The commits here basically do the following things:
1. move all generated files for gecko into "gecko/generated" so that we can copy all of them around
2. make regen_atoms.py generate file to the out dir rather than in-tree
3. make the build script invoke regen_atoms.py when bindgen feature is enabled
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Added support for "font-family: -moz-fixed" for stylo
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Major pain point is that I had to write the bitfield stuff manually, but that
should be resolved soon again.
Now we generate proper layout for _every_ struct, including field offsets \o/.
r? @heycam
Source-Repo: https://github.com/servo/servo
Source-Revision: 35e7a4cd2c27db605f15670f318dffba22a1c680
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This is the Servo side change of [bug 1323147](https://bugzilla.mozilla.org/show_bug.cgi?id=1323147) which has been reviewed by @heycam and @SimonSapin on Bugzilla.
r? @heycam
Source-Repo: https://github.com/servo/servo
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* `LonghandId` and `ShorthandId` are C-like enums
* `Atom` is used for the name of custom properties.
* `PropertyDeclarationId` is the identifier for `PropertyDeclaration`,
after parsing and shorthand expansion. (Longhand or custom property.)
* `PropertyId` represents any CSS property, e.g. in CSSOM.
(Longhand, shorthand, or custom.)
CC @upsuper
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Source-Revision: 6dd4b4822fa788694153ee61a04dd9a5dfb748ec
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Update stylo bindings for the latest mozilla-central sync.
r? @Manishearth
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Bindings update from [the latest incubator/stylo push](https://treeherder.mozilla.org/#/jobs?repo=stylo&revision=c5170a72424e7175020506586fa775077f5307a9).
r? @Manishearth
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This is the Servo side change of [bug 1294299](https://bugzilla.mozilla.org/show_bug.cgi?id=1294299) which has been reviewed by @heycam, @emilio, and @SimonSapin.
This should not be merged until the Gecko side change gets merged into mozilla-central.
r? @heycam
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Source-Revision: 23905037728e6eb434808f2fa6e2af5db9191688
Previously, `string-cache` defined:
* An string-like `Atom` type,
* An `atom!("foo")` macro that expands to a value of that type, for a set of strings known at compile-time,
* A `struct Namespace(Atom);` type
* A `ns!(html)` macro that maps known prefixed to `Namespace` values with the corresponding namespace URL.
Adding a string to the static set required making a change to the `string-cache` crate.
With 0.3, the `Atom` type is now generic, with a type parameter that provides a set of static strings. We can have multiple such sets, defined in different crates. The `string_cache_codegen` crate, to be used in build scripts, generates code that defines such a set, a new atom type (a type alias for `Atom<_>` with the type parameter set), and an `atom!`-like macro.
The html5ever repository has a new `html5ever_atoms` crate that defines three such types: `Prefix`, `Namespace`, and `LocalName` (with respective `namespace_prefix!`, `namespace_url!`, and `local_name!` macros). It also defines the `ns!` macro like before.
This repository has a new `servo_atoms` crate in `components/atoms` that, for now, defines a single `Atom` type (and `atom!`) macro. (`servo_atoms::Atom` is defined as something like `type Atom = string_cache::Atom<ServoStaticStringSet>;`, so overall there’s now two types named `Atom`.)
In this PR, `servo_atoms::Atom` is used for everything else that was `string_cache::Atom` before. But more atom types can be defined as needed. Two reasons to do this are to auto-generate the set of static strings (I’m planning to do this for CSS property names, which is the motivation for this change), or to have the type system help us avoid mix up unrelated things (this is why we had a `Namespace` type ever before this change).
Introducing new types helped me find a bug: when creating a new attribute `dom::Element::set_style_attr`, would pass `Some(atom!("style"))` instead of `None` (now `Option<html5ever_atoms::Prefix>` instead of `Option<string_cache::Atom>`) to the `prefix` argument of `Attr::new`. I suppose the author of that code confused it with the `local_name` argument.
---
Note that Stylo is not affected by any of this. The `gecko_string_cache` module is unchanged, with a single `Atom` type. The `style` crate conditionally compiles `Prefix` and `LocalName` re-exports for that are both `gecko_string_cache::Atom` on stylo.
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Gecko bindings regeneration for latest stylo branch tip: 30359e047e
r? @Manishearth
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Source-Revision: dafc57e8abb3723e62e32e82ef04eb770eee2ea2
Just pushed an update to incubator, here are the regenerated bindings.
r? @heycam
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r? @manishearth
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Source-Revision: 568061ff20cc7486669e70b42b8b616e86d70011
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
