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`.
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- [ ] These changes fix https://bugzilla.mozilla.org/show_bug.cgi?id=1409255
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- [ ] These changes do not require tests because testing is on the Gecko side.
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Source-Repo: https://github.com/servo/servo
Source-Revision: 4c538b642e4bdfbf42c522c5a59c258a6d14546e
--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : f9a6feed1088d0b0be2b55d7f0c2ec9c594ac33b
http://www.robohornet.org gives a score of 101.36 on master, and 102.68 with this PR. The latter is slightly better, but probably within noise level. So it looks like this PR does not affect DOM performance.
This is expected since `Box::new` is defined as:
```rust
impl<T> Box<T> {
#[inline(always)]
pub fn new(x: T) -> Box<T> {
box x
}
}
```
With inlining, it should compile to the same as box syntax.
Source-Repo: https://github.com/servo/servo
Source-Revision: a9022be0c3e30249845ca5947ac0c0a6743c7991
--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : 97a17674f72dbfcb99552fe4877789f149ccfc84
<!-- Please describe your changes on the following line: -->
Automatically verify that derive() lists are alphabetically ordered #18172
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Source-Revision: 474369618965569407d127b1e8c481e757cc59d3
--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : 421aa68def8e17f70580477a4203494db3b69382
**Can't run WPT on my computer, so pushing here to run tests 😢**
Have CharacterData.SetData call children_changed on its parent when
data is set (if it is a Text node) so that HTMLStyleElement parents can
re-parse. Add variant ChildrenMutation::Text for it to use as the
mutation.
This fixes an issue where an empty <style> element's data is set but the
style is not updated. An HTMLStyleElement parent re-parses in its
children_changed implementation.
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Source-Revision: 559c0d1d905bf6bc1dd72d576cd4fc8287e0947b
--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : 797bd855aa6dcbbf436fa68e01402d05babc351d
```
hi servo. it's been
some time. here's a pull request.
i hope you like it.
```
Source-Repo: https://github.com/servo/servo
Source-Revision: bc5e8f89fff9bf1922638b3eb2f4c75148dcad1e
--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : 6180d976d0a1f62ddce95c82f934b44201163827
<!-- Please describe your changes on the following line: -->
Implement MutationObserver childList mutations
---
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Source-Repo: https://github.com/servo/servo
Source-Revision: 323760f47e79b49ef8db4484cca1969bc26b5413
--HG--
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extra : subtree_revision : d0d805444965d50fc48b8982521415f4ce30c7f8
cc #5286
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- [ ] There are tests for these changes OR
- [x] These changes do not require tests because no functionality changed
Source-Repo: https://github.com/servo/servo
Source-Revision: 4426236adfac2de779ff68b47176f7bf36a74e20
--HG--
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This PR removes the single root document from the script thread, and replaces it by a lookup table from `PipelineId`s to `Document`s. This is needed if we're going to share script threads, as per #633.
The last commit is the one that matters, the ones before are #13646.
cc @jdm @Ms2ger @ConnorGBrewster
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Source-Repo: https://github.com/servo/servo
Source-Revision: d1b7f19410cb882280287b482bd7178a6eb529b1
Globals in that PR are now represented by the fake IDL interface `GlobalScope`.
Source-Repo: https://github.com/servo/servo
Source-Revision: a6e4b5bb86ad707a0863acff87344ca4239cfd2c
--HG--
rename : servo/components/script/dom/webidls/ServoXMLParser.webidl => servo/components/script/dom/webidls/GlobalScope.webidl
I also had to implement the NamedGetter for HTMLFormControlsCollection as well, since that's the only consumer of RadioNodeList and I wanted to see which wpt test passes.
Source-Repo: https://github.com/servo/servo
Source-Revision: 0c5591a8ec3daf5fb6e415d7225c523466fdf1f0
Basically, instead of trying to check for specific kinds of statements,
just check the types of all local variables.
Also included are some commented-out proposals for some slightly more
aggressive lints which might be useful (but trigger a little too
frequently at the moment).
Source-Repo: https://github.com/servo/servo
Source-Revision: bb88832c078fbb14fa03c413fac1252b2b755015
We can only borrow `JS<T>` from rooted things, so it's safe to deref it.
The only types that provide mutable `JS<T>` things are `MutHeap<JS<T>>` and
`MutNullableHeap<JS<T>>`, which don't actually expose that they contain
`JS<T>` values.
Source-Repo: https://github.com/servo/servo
Source-Revision: 1a376aa75d5de8781b17a673850860f8afd2c28f
`JS<T>` belongs on the heap, and only on the heap. This is a collection of fixes so that code uses either `Root<T>` or `&T` to pass around garbage-collected pointers.
Ideally, we could completely ban constructing a `JS<T>` outside of constructor functions, but we aren't quite there yet.
Source-Repo: https://github.com/servo/servo
Source-Revision: 7c7dbde0f4372037aac3635b8d81531ca9cdced3
Now that `JSRef<T>` is gone, there is no need to have helper traits.
Source-Repo: https://github.com/servo/servo
Source-Revision: 909429702972d53bf02dfe9a4aa93ea0cb588cf4
Also adds HeapSizeOf implementations/derive for some types. I've used "Cannot calculate Heap size" as a reason everywhere, because my imagination is rather limited. If you'd like me to change this message for specific types, please write something like this: "Trusted - Cannot calculate Heap size for Trusted" so that it would be easier for me to replace them through a script :)
Source-Repo: https://github.com/servo/servo
Source-Revision: a03616f379c255cc6c9b6e1d04dd7d98bd9926ce
fixes#6524. I had to make an additional change not mentioned in the ticket - adding the `#[feature]` to enable deriving custom traits but I assume that's expected at this time.
Source-Repo: https://github.com/servo/servo
Source-Revision: bbb39082e0f640400546d2084a450a8675820a82
> Here it is.
>
> ~~There's two major things that are unfinished here:~~
> - ~~Dealing with the unroot_must_root lint. I'm not sure about the value of this lint with the new rooting API.~~ Done.
> - ~~Updating the Cargo.locks to point to the new SM and SM binding.~~ Done.
>
> I also included my fixes for the rust update, but these will disappear in a rebase. A rust update is necessary to support calling `Drop` on `Heap<T>` correctly when `Heap<T>` is inside a `Rc<T>`. Otherwise `&self` points to the wrong location.
>
> Incremental GC is disabled here. I'm not sure how to deal with the incremental barriers so that's left for later.
>
> Generational GC works. SM doesn't work without it.
>
> The biggest change here is to the rooting API. `Root` was made movable, and `Temporary` and `JSRef` was removed. Movable `Root`s means there's no need for `Temporary`, and `JSRef`s aren't needed generally since it can be assumed that being able to obtain a reference to a dom object means it's already rooted. References have their lifetime bound to the Roots that provided them. DOM objects that haven't passed through `reflect_dom_object` don't need to be rooted, and DOM objects that have passed through `reflect_dom_object` can't be obtained without being rooted through `native_from_reflector_jsmanaged` or `JS::<T>::root()`.
>
> Support for `Heap<T>` ended up messier than I expected. It's split into two commits, but only because it's a bit difficult to fold them together. Supporting `Heap<T>` properly requires that that `Heap::<T>::set()` be called on something that won't move. I removed the Copy and Clone trait from `Heap<T>` so `Cell` can't hold `Heap<T>` - only `UnsafeCell` can hold it.
>
> `CallbackObject` is a bit tricky - I moved all callbacks into `Rc<T>` in order to make sure that the pointer inside to a `*mut JSObject` doesn't move. This is necessary for supporting `Heap<T>`.
>
> `RootedCollectionSet` is very general purpose now. Anything with `JSTraceable` can be rooted by `RootedCollectionSet`/`RootedTraceable`. Right now, `RootedTraceable` is only used to hold down dom objects before they're fully attached to their reflector. I had to make a custom mechanism to dispatch the trace call - couldn't figure out how to get trait objects working for this case.
>
> This has been tested with the following zeal settings:
>
> GC after every allocation
> JS_GC_ZEAL=2,1
>
> GC after every 100 allocations (important for catching use-after-free bugs)
> JS_GC_ZEAL=2,100
>
> Verify pre barriers
> JS_GC_ZEAL=4,1
>
> Verify post barriers
> JS_GC_ZEAL=11,1
Source-Repo: https://github.com/servo/servo
Source-Revision: e7808c526c348fea5e3b48af70b7f1a066652097
This is a start towards fixing #3868. Not all callers have been fixed yet, so the `Deref` implementation remains for now.
Source-Repo: https://github.com/servo/servo
Source-Revision: 141b5d038fad3c0c44a6f1b309b8ca9edea54580
Now `#[dom_struct]` also generates Reflectable impls, and there's another lint to ensure that a DOM struct only contains one bare DOM field (as the first field) or a Reflector.
A lot of this was generated by sed -- each autogenerated change has its own commit for easy review; these will be squashed later.
Source-Repo: https://github.com/servo/servo
Source-Revision: 56d1b16d1b3a18d5ffa1d9c32562d3b209851711
This PR removes public fields from all (hope I didn't miss any) DOM structs. Should |Page| be privatized as well? This PR additionally introduces a #[privatize] lint to ensure nobody accidentally re-introduces a public field.
All changesets compile separately if applied in the same order. Hope that helps reviewing but I can of course squash them before merging.
Source-Repo: https://github.com/servo/servo
Source-Revision: f350879574194bb612eac88e21d0920e9827afa7
The biggest language change is that enum variants now also reserve (for future use) a name in the type namespace, which must not collide with other types. Some things were renamed, and others qualified as `module::name`.
Source-Repo: https://github.com/servo/servo
Source-Revision: 7409685589c550ee7a9f94182f511acddab4c6fd
