Problems:
* the Heap::new constructor is memory-unsafe with any value other than Undefined/Null
* this means that moving dictionaries containing Heap values (ie. any/object) is memory-unsafe
* unions containing GC pointers are similarly unsafe
Solutions:
- dictionaries containing GC pointers are now wrapped in RootedTraceableBox (even inside other dictionaries)
- instead of using Heap::new, dictionaries containing GC pointers are now initialized to a default value (by deriving Default) and mutated one field at a time
- dictionaries containing GC pointers are marked #[must_root]
- FromJSVal for dictionaries containing GC pointers now returns RootedTraceableBox<Dictionary>
- unions wrap their variants that require rooting in RootedTraceableBox
Rather than attempting to derive Default for all dictionaries, we only do so for the dictionaries that require it. Because some dictionaries that require it inherit from dictionaries that do not, we need to write manual implementations for those parent dictionaries. This is a better option than having to figure out a default value for types like `Root<T>`, which would be required for deriving Default for all dictionaries.
I would still like to come up with an automated test for this, but I figured I would get eyes on this first.
---
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Source-Repo: https://github.com/servo/servo
Source-Revision: 532dee36c10b7dd5d33e560b55cf65c7243ef1d3
The elephant 🐘 (not PHP's) still remains in the room: `Rc<Promise>` shouldn't require `#[allow(unrooted_must_root)]`.
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Relies on #17614
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spec: https://html.spec.whatwg.org/multipage/#htmlconstructor
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Renamed `script::dom::BrowsingContext` to `script::dom::WindowProxy`.
The browsing context is mostly maintained in the constellation, not in script. It would be nice to rename `constellation::Frame` to `constellation::BrowsingContext`, but that will be very confusing if there are two `BrowsingContext` types.
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This removes six separate warnings when building servo. One of
the warnings was an unused mut, and the other were various dead code
warnings
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r? @jdm
issue https://github.com/servo/servo/issues/15252
The primary goal of this PR is to add add a generic trait method that returns a void ptr.
In addition to that change, I made the casting explicit in `components/script/dom/bindings/callback.rs` and `components/script/dom/promise.rs`. I did not use the new trait method because `AddRawValueRoot` is not looking for a `c_void`. It's looking for `std::os::raw::c_char`.
```rust
pub fn AddRawValueRoot(cx: *mut JSContext, vp: *mut Value,
name: *const ::std::os::raw::c_char) -> bool;
```
So I replace the `as *const _ ` with a more specific cast.
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This seems like code cleanup. It shouldn't change behaviour.
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Eliminate a mem::transmute in CodeGen by changing the find_enum_string_index function to take a slice of pairs and return an enum value.
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This PR adds an `as_str()` method to WebIDL enums to hide slice of strings from callers. It uses the new method in two places. It also eliminates a to_string() call that seemed unnecessary to me.
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Source-Revision: 05623b36a15b594bbc690fcd8e3b642995618de1
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This implements the [Permissions API](https://w3c.github.io/permissions/) spec.
Also includes the WebBluetooth related implementation for this.
There are some know issues:
- [ ] If the descriptor name is invalid [this](https://gist.github.com/dati91/7a6a0a563d90f49ba5a351e48c5b626b#file-permissionstatusbindings-rs-L323) will throw an error, rather that return it and we could handle it.
- [x] The [environment settings object](https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object) is not implemented in servo and the spec rely on it.
- [x] There is a popup in the implementation which prevent us to add wpt test, we should figure out a way to make it work
- [ ] The allowedDevice's allowed_services attribute is not used in our implementation, because we store these in the lower level, not in the dom side.
- [ ] We think the bluetooth revoke function will need some more work, but the problem is the spec needs clarifications on that part.
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Source-Repo: https://github.com/servo/servo
Source-Revision: a537cf48b18d9bba3453b924a4453f5e19dea4ed
Note that this relies on the fact that Heap<JSVal> and JSVal are binary
compatible.
Fixes#15324.
Source-Repo: https://github.com/servo/servo
Source-Revision: 4524bb2bda02e6cf84347ef5a152c9c242d95408
It’s a compiler plugin that uses unstable compiler APIs that are not on a path to stabilization.
With this changes, there is one less thing that might break when we update the compiler. For example: https://github.com/sfackler/rust-phf/pull/101
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This replicates the same model that Promise uses right now, because it requires less thinking than coming up with something else.
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Adds support for the other overload of bufferData, fixing many conformance tests. In the process I had to fix the webidl codegen in the overload-distinguished-by-an-object case. Also includes a little fix for glEnable() validation.
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This PR removes the `util` crate.
* Replaced the `spawn_named` and `clamp` functions by appropriate uses of `std:🧵:Builder::spawn`, `std::cmp::min` and `std::cmp::max`.
* Moved `opts`, `prefs` and `resource_files` into a new `config` crate.
* Moved `remutex` and `geometry` into their own crates.
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This is a rebased version of PR #11595
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Fixes#13376.
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There's still some small issues, but I suppose most of the work is done:
- test-tidy mentions a `method declared in webidl is missing a comment with a specification link` for the `getResult` method.
- I get an 'unused code' warning for code present in `UnionTypes.rs`, which is auto-generated.
Passing tests:
- [x] `FileAPI/reading-data-section/filereader_result.html`
- [x] `FileAPI/reading-data-section/filereader_readAsArrayBuffer.html`
- [x] `FileAPI/idlharness.html`
- [ ] `FileAPI/reading-data-section/FileReader-multiple-reads.html`
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Source-Repo: https://github.com/servo/servo
Source-Revision: ceb18e7d8624a6d78e3f712dc335928adaa7dc79
