style: Make Servo use a single thread-pool for layout-related tasks per process.
Instead of per-document. This also allows to reuse this thread-pool if needed
for other stuff, like parallel CSS parsing (#22478), and to share more code with
Gecko, which is always nice.
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Instead of per-document. This also allows to reuse this thread-pool if needed
for other stuff, like parallel CSS parsing (#22478), and to share more code with
Gecko, which is always nice.
This reverts the relevant bits from #21746 so that style and dependencies can
build with stable.
This is important because:
* `selectors` is a published crate.
* Gecko compiles with stable (more or less).
I reviewed that PR under the assumption that the union feature was stable, since
untagged unions are stable since 1.19, but turns out that smallvec uses non-Copy
types in unions, which are still unstable.
This leaves the union feature used on Servo, so that it gets testing, taking
advantage of features being additive.
We had a mix of 0.6.2 and 0.6.5 (which is the current release),
this unifies to the latest version. It also enables the union
feature which removes the discriminant, reducing memory usage.
This fixes a build error for i686-linux-android with some versions of libclang:
```
error[E0560]: struct `generated::root::JS::Value` has no field named `__bindgen_align`sys
--> /home/simon/projects/mozjs/src/jsval.rs:83:2
|
83 | __bindgen_align: [],
| ^^^^^^^^^^^^^^^ `generated::root::JS::Value` does not have this field
|
= note: available fields are: `data`
error: aborting due to previous error
```
This moves most of the code to be Rust, except potentially some evaluator
functions, and allows to unblock the use case from any-hover / any-pointer and
remove nsMediaFeatures.
Differential Revision: https://phabricator.services.mozilla.com/D2976
This disables bindgen's `logging` feature, which builds `env_logger`
with default features, including regex support. Disabling it allows
Gecko to build `env_logger` without the `regex` crate, reducing code
size.
Part of https://bugzilla.mozilla.org/show_bug.cgi?id=1444097
This reverts commit 05dcfe2983, reversing
changes made to 9dbb69868c.
This broke autoland because we don't build components/style/build_gecko.rs on
Servo's CI.
