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Could use a https://github.com/servo/rust-mozjs/pull/402 in some places, as this should simplify a little bit and remove unnecessary `#[allow(unsafe_code)]` attributes.
I sort of hacked my way through for https://github.com/servo/servo/issues/20394 since I encountered this issue as well. I agree that the comment above makes me feel uneasy about this and feels like I'm missing something and this shouldn't be the way we eventually resolve the overloads with auto rootable types (talking about this: https://github.com/servo/servo/pull/20396/files#diff-60d01595cff328c165842fea9e4ccbc2R428).
r? @jdm
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Source-Revision: e8fdc677f440919507209ed42d0ea042c700042c
<!-- Please describe your changes on the following line: -->
Supersedes #20205.
This brings support to receiving typed arrays as function arguments (those are stack-rooted with CustomAutoRooter) and also being a member of a union (which is basically heap-rooted? similarly to other webidl unions).
This is based on my other PR #20265 (which means it has to pull an external rust-mozjs branch and contains some also slightly unrelated changes here) since it shares `RootedTraceableBox::from_box` here and some other additional changes at rust-mozjs, but it can be easily separated if needed.
I tried adding support to nullable typed arrays but couldn't work around an issue of codegen always sticking a "OrNull" at the end of my type (presumably because of [this](https://github.com/servo/servo/blob/master/components/script/dom/bindings/codegen/parser/WebIDL.py#L2241)?). How would I go about avoiding the suffix with nullable arguments?
If we were to add also support for nullable typed arrays then I think we wouldn't be blocked anymore on this in WebGL 1.0.
r? @jdm
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Requires safe `Heap::boxed` constructor from https://github.com/servo/rust-mozjs/pull/395 (more info on it is in the PR).
Since unions currently assume that their respective members root themselves and can be stored on heap, I modified the union member object conversion branch to convert to a `RootedTraceableBox<Heap<*mut JSObject>>` (which is the currently generated type for objects in said unions).
I did it only for Unions and not dictionaries, since some dictionaries had bare `*mut JSObject` members - is this a mistake and something that needs further fixing?
Does this need a test, e.g. passing a union with object to a function that returns said object, and comparing the results for equality?
r? @jdm
Generated code with this patch (for `StringOrObject`):
```rust
impl FromJSValConvertible for StringOrObject {
type Config = ();
unsafe fn from_jsval(cx: *mut JSContext,
value: HandleValue,
_option: ())
-> Result<ConversionResult<StringOrObject>, ()> {
if value.get().is_object() {
match StringOrObject::TryConvertToObject(cx, value) {
Err(_) => return Err(()),
Ok(Some(value)) => return Ok(ConversionResult::Success(StringOrObject::Object(value))),
Ok(None) => (),
}
}
// (...)
}
}
impl StringOrObject {
// (...)
unsafe fn TryConvertToObject(cx: *mut JSContext, value: HandleValue) -> Result<Option<RootedTraceableBox<Heap<*mut JSObject>>>, ()> {
Ok(Some(RootedTraceableBox::from_box(Heap::boxed(value.get().to_object()))))
}
}
```
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<!-- Please describe your changes on the following line: -->
Attempt at https://github.com/servo/servo/issues/16678. At the moment this pulls an external [remove-handle-conv](https://github.com/Xanewok/rust-mozjs/tree/remove-handle-conv) branch for rust-mozjs (removing `FromJSValConvertible` implementation for `HandleValue` and adding one for `*mut JSObject`)
In short, this roots the `sequence<any>` and `sequence<object>` function arguments using `CustomAutoRooter` (introduced in https://github.com/servo/rust-mozjs/pull/382).
As per https://github.com/servo/servo/issues/16678#issuecomment-302224110 the underlying vector contains raw gc thing pointers instead of handles. To do that, this introduces new possible `isMember = "AutoRoot"` value in CodegenRust.py.
The rooted argument is passed to a function wrapped in a `CustomAutoRooterGuard` [RAII root guard](ed5e37a288/src/rust.rs (L586-L588)) (e.g. as `CustomAutoRooterGuard<Vec<JSVal>>`)
I felt quite out of my depth when trying to adapt CodegenRust.py code, so I'd appreciate any help with how can be done better/in a more clean manner.
Also the name `CustomAutoRooterGuard` is quite lengthy, so I'm also open to changing it (`AutoRoot`? `AutoRootGuard`?)
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Source-Revision: 989d2fd53267d063212ef3b7b7f13f2402943c4a
…fault values
The generated bindings for an interface like this:
```webidl
void someFunction(Foo foo, optional long a = 0, optional long b = 1);
void someFunction(Bar bar, optional long a = 0);
```
are failing to build with an error like:
```bash
error[E0425]: cannot find function `Throw` in this scope
--> /Users/ferjm/dev/mozilla/servo/target/debug/build/script-7b1a12ddd08207e3/out/Bindings/TestBindingBinding.rs:15395:24
|
15395 | return Throw(cx, NS_ERROR_XPC_BAD_CONVERT_JS);
| ^^^^^ not found in this scope
error[E0425]: cannot find value `NS_ERROR_XPC_BAD_CONVERT_JS` in this scope
--> /Users/ferjm/dev/mozilla/servo/target/debug/build/script-7b1a12ddd08207e3/out/Bindings/TestBindingBinding.rs:15395:34
|
15395 | return Throw(cx, NS_ERROR_XPC_BAD_CONVERT_JS);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
error[E0425]: cannot find function `Throw` in this scope
--> /Users/ferjm/dev/mozilla/servo/target/debug/build/script-7b1a12ddd08207e3/out/Bindings/TestBindingBinding.rs:15468:24
|
15468 | return Throw(cx, NS_ERROR_XPC_BAD_CONVERT_JS);
| ^^^^^ not found in this scope
error[E0425]: cannot find value `NS_ERROR_XPC_BAD_CONVERT_JS` in this scope
--> /Users/ferjm/dev/mozilla/servo/target/debug/build/script-7b1a12ddd08207e3/out/Bindings/TestBindingBinding.rs:15468:34
|
15468 | return Throw(cx, NS_ERROR_XPC_BAD_CONVERT_JS);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
error: aborting due to 4 previous errors
error: Could not compile `script`.
```
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** Note that this depends** on https://github.com/servo/rust-mozjs/pull/379
Source-Repo: https://github.com/servo/servo
Source-Revision: 9d055522d355b711c7837ba5997089ba8a7641ae
<!-- Please describe your changes on the following line: -->
I found that some const WebIDL values fail at rust compile time.
Example:
const long long TIMEOUT_IGNORED = -1;
```
906 | ConstantSpec { name: b"TIMEOUT_IGNORED\0", value: ConstantVal::DoubleVal(-1) }]
| ^^ expected f64, found integral variable
|
= note: expected type `f64`
found type `{integer}`
```
I added a explicit cast to to fix the problem in conversions that may fail to compile.
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Source-Revision: 6449c00fc95c2aebe5b8322a70018d3664941d77
This implements support for using Promises in WebIDL, executing promise callbacks in batches (equivalent to running all enqueued jobs from a setTimeout(0)), and attaching native callbacks to promise objects. This is the combined work of myself, @dati91, and @mmatyas based on the following prior work in Gecko:
* Codegen.py
* Promise.webidl
* Promise.cpp/Promise.h
* PromiseNativeHandler.h
This does not implement microtasks per #4283. This allows us to make progress on testing code that requires the use of Promises right now; the microtasks work is more complicated, but also largely orthogonal to implement.
Requires https://github.com/servo/mozjs/pull/89, https://github.com/servo/rust-mozjs/pull/287, and https://github.com/servo/rust-mozjs/pull/294.
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<!-- Please describe your changes on the following line: -->
Update bindings generator to support default ByteString values in a dictionary.
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The script tick ends up only processing JS callbacks related to animation
frames, so CSS transitions/animations end up not working as expected.
This could have accidentally worked before #12563 because we over-restyled, but
now this is no longer the case.
Other possible way to do it is making a layout reflow with RAF handle CSS
animations/transitions too, but that may not work if the reflow ends up being
suppressed (that could very well be the case), and we'd need to handle a lot
more state in the document, so this solution (assuming it doesn't break try)
seems a bit less flacky.
Missing a test, will add one soon. Fixes#12749.
Source-Repo: https://github.com/servo/servo
Source-Revision: 0b9832119e9d42bc3ba4d8e4a4e573a03705de3e
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This PR addresses issue #12527 to allow ByteStrings in union types.
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This fixes a blocker for #11897. `unroll` recursively gets the inner type of any sequence type encountered, so it's inappropriate for codegen that only wants the immediate inner type. However, if a type identifies as a sequence and is nullable, we need to reach through the nullable wrapper first. Gecko does very similar things.
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Source-Revision: 4ae0897175143351439ff5b903d05a79c17e3725
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r? @SimonSapin for the style changes, @Ms2ger or @jdm for the dom and test changes
Source-Repo: https://github.com/servo/servo
Source-Revision: 14aeccc33ab44d706df86fbce67339218efe710c
Fix the biggest cause of #6462 by wrapping lots of JS->Rust transitions in catch_panic, and calling resume_panic after all Rust->JS transitions return.
Known issue:
* Finalizers can be called in response to any JS engine allocation that triggers a GC, so it's possible for a Rust object's Drop implementation that panics to leave an interrupted panic in TLS. This is why 30d8009 is part of this PR; the underlying problem is that there's no clear place to resume the panic after it is interrupted.
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This enables more meaningful output from observing hard crashes outside of GDB through the judicious use of a SIGSEGV signal handler.
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Source-Revision: 2c4c2d8779a185a2da264f1ac11eb68b0d492fd0
First part of #11292, this just includes support of `[Func]`.
Source-Repo: https://github.com/servo/servo
Source-Revision: 073c5e3b6b8950c01c9e5691925d24787fd06d53
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Fixes#11152
Source-Repo: https://github.com/servo/servo
Source-Revision: 221db56b08e01157c97f5adba43799eeaee32f64
This was easier to throw together than per-attribute/method support, and it gets rid of some nonstandard properties from our globals.
Fixes#7626.
r? @Ms2ger
Source-Repo: https://github.com/servo/servo
Source-Revision: 8255e74a61d62be94ef53caa9ebe6cd5082dcb4d
I'm not exactly sure of the wanted semantics with boolean values.
Fixes#10348.
Source-Repo: https://github.com/servo/servo
Source-Revision: 17ffc6cf71278813885474b0135e268ac0eda081
First patch to servo - apologies if I did something stupid :)
This is a fix for #10161. I have squashed the commits into one.
Source-Repo: https://github.com/servo/servo
Source-Revision: 4cb626ae297b2132bcc2f4d4756772c1f8c09fc3
One of the ways that generated code differentiates constructors is by comparing if the args are array-like. The generated code was calling a function `IsArrayLike` that no longer exists. I re-implemented it with a more rust-like naming scheme.
Source-Repo: https://github.com/servo/servo
Source-Revision: c37a0866608421d9e3afd67f0777e27091104f0f
