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
Still need to finish the rust-mozjs update and make cargo use it, but it's close enough that I don't expect much to change on the servo side.
Some changes here
- bools are properly translated now
- char16_t is handled as u16 now
- JS_GlobalObjectTraceHook isn't mangled now
- JSJitInfo has been adjusted
- A const fn is used to generate bitfields in JSJitInfo
- Manually generating handles now requires calling an unsafe function. It's not actually required, but it's too much of a hassle to generate them manually now due to bindgen++ adding base classes now.
Source-Repo: https://github.com/servo/servo
Source-Revision: b34fd5bd7e55be1d577df5cf70b41af8a6cc716b
This is a direct extract from my abandoned PR for a lint (#7546), along with some rather clumsy modifications (only on `components/script/dom/mod.rs` and `components/style/lib.rs`), because I had to sort some of the files again to make peace with tidy, which hasn't been educated about sorting yet!
Source-Repo: https://github.com/servo/servo
Source-Revision: a7208869f2903e36f9b2f540b55b50283d7df466
Elided almost all the lifetimes and removed needless returns. Mostly done by sed + manual fixes.
r? @nox
Source-Repo: https://github.com/servo/servo
Source-Revision: c2c2646d37614ece5869af861993c3d619f6e003
Now that `JSRef<T>` is gone, there is no need to have helper traits.
Source-Repo: https://github.com/servo/servo
Source-Revision: 909429702972d53bf02dfe9a4aa93ea0cb588cf4
…s for frame treese in script tasks.
This underreports by a significant amount, since only Document, Window and CharacterData (ie. text) nodes are fully represented. That being said, every HTML element in the tree is measured, but only counted as a Node. It's easy to improve this, it just requires adding the appropriate HeapSizeOf derives and increasing the granularity of `measure_memory_for_eventtarget`. google.com shows a dom-tree value of 0.24 MB for me at the moment.
r? @nnethercote
Source-Repo: https://github.com/servo/servo
Source-Revision: 84e25befdd97cf74fb00707dbe150d59d980e977
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
Fix for issue #2108. That issue mentions an `unwrap_object` which doesn't seem to exist so I renamed `unwrap` to `native_from_reflector` and `unwrap_jsmanaged` to `native_from_reflector_jsmanaged`. The latter is a bit unweildy - maybe a shorter name might be better?
Source-Repo: https://github.com/servo/servo
Source-Revision: d7e9b8b96b77377fa37fd59cdb8c44fa866b5b2e
This is the Rust style, and there's no reason to deviate here.
Source-Repo: https://github.com/servo/servo
Source-Revision: d026457fdde615bd3185abeda0e844bd42a7805a
This is the Rust style, and there's no reason to deviate here.
Source-Repo: https://github.com/servo/servo
Source-Revision: 8f351cdc3209c0be2e02b9d08fef502eb7aa04ec
After this patch somebody just needs to implement the new IndexedGetter (and probably frames/length) on window to fix#4589.
Source-Repo: https://github.com/servo/servo
Source-Revision: a227faa41610cdc826da4ec8d25839c2ec3061db
As a first start, this allows them indiscriminately where used.
Source-Repo: https://github.com/servo/servo
Source-Revision: f74d5360ba30ec7aaa12f675eb267fd11053d8a8
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
This method is deprecated in rust master; removing its users in advance will
make a future rust upgrade smoother.
Source-Repo: https://github.com/servo/servo
Source-Revision: a61417e2a87004e30e2a02f2e6ae58629062e3d5
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
Now that we use `JSTraceable` (defined in `script`), we can create arbitrary implementations on non-`script` types (eg `Url` or `RequestHeaderCollection`) where in the past we had to rely on `Traceable` and `Untraceable` to achieve cross-crate impls of `Encodable`.
This removes the two completely. They can be reintroduced if required, though the `untraceable!` macro should suffice.
Fixes#3469
Source-Repo: https://github.com/servo/servo
Source-Revision: b34df7c343579f200d2e67e21fc566842a4e4a91
