Sanitize Heap::handle(_mut) functions
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Complementary to https://github.com/servo/rust-mozjs/pull/404.
Removing `Heap::handle_mut` didn't warrant any changes on Servo side, and so the changes here are only to fix compilation with `Heap::handle` being now marked as `unsafe`.
The main idea is that we can't hand out handles to heap values themselves, since they're not guaranteed to be rooted, but it's safe to do when we are - hence why the safe impl on `RootedTraceableBox<Heap<T>>` and why it's safe to use inside structs that hold a Heap and are `#[must_root]`.
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getRandomValues uses ArrayBufferView now
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- Changed the `Crypto.webidl` file to allow getRandomValues to recieve an ArrayBufferView as input
- Removed unnecesary checks from `crypto.rs` and did the necessary changes to match the `webidl` changes.
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Profiler for blocked IpcReceiver::recv()
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Implements feature #19223
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WIP.
@jdm - this is the new profiler : "Blocked at IPC Receive"
Should I dig through all the calls to `ipc::channel` and replace them with this profiled `IpcReceiver`?
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Those parameters aren't optional in the current spec.
The test element-array-buffer-delete-recreate.html now fails because we don't
actually implement gl.getParameter(gl.CURRENT_PROGRAM).
Implement WebGL getFrameBufferAttachmentParameter API
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Implementation of `getFramebufferAttachmentParameter` as in WebGL1 specification.
Part of https://github.com/servo/servo/issues/10209.
r? emilio or jdm.
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Blobs support typed arrays now
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Blobs support typed arrays now, the relevant test were modified
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Don't use unsafe Heap::new constructor
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Pulls https://github.com/servo/rust-mozjs/pull/398 and aims to close https://github.com/servo/rust-mozjs/issues/343.
We can't convert from `JSVal` to `Heap<JSVal>` safely (due to GC barriers we can't move Heap value after changing its underlying value to something meaningful, e.g. non-null or non-undefined), so I decided to also wrap the Heap values in a Box (and in dictionaries in RootedTraceableBox, see https://github.com/servo/servo/pull/20265#issuecomment-372838379 and the issue for more details) in dictionaries.
Since we allocate more to be safe, I think it'd be good to also do some sort of a JS perf run, if there is any to see if there's any significant overhead.
r? @jdm
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We use Size2D and Point2D across compositing, constellation and script,
losing the type of pixels we use (DevicePixel, DeviceIndepententPixel
or CSSPixel) along the way, which might lead to bugs like
window.outerHeight not taking into account the page zoom (using
DeviceIndepententPixel instead of CSSPixel).
Fix JS object conversion in unions
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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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