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webgpu: leverage routed_promise in calls returning promises (#35859)

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Using the RoutedPromiseListener let us define a different
response type for each promise. This removes unreachable branches
that used to exist when they all shared the same WebGPUResponse.

Signed-off-by: webbeef <me@webbeef.org>
This commit is contained in:
webbeef 2025-03-23 11:52:46 -07:00 • committed by GitHub
parent 4814cbdb1f
commit 1c9f486f88
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GPG key ID: B5690EEEBB952194
15 changed files with 221 additions and 263 deletions
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27
components/script/routed_promise.rs
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@ -14,20 +14,23 @@ use crate::dom::bindings::reflector::{DomGlobal, DomObject};
use crate::dom::promise::Promise;
use crate::script_runtime::CanGc;
pub(crate) trait RoutedPromiseListener {
type Response: Serialize + DeserializeOwned + Send;
fn handle_response(&self, response: Self::Response, promise: &Rc<Promise>, can_gc: CanGc);
pub(crate) trait RoutedPromiseListener<R: Serialize + DeserializeOwned + Send> {
fn handle_response(&self, response: R, promise: &Rc<Promise>, can_gc: CanGc);
}
pub(crate) struct RoutedPromiseContext<T: RoutedPromiseListener + DomObject> {
pub(crate) struct RoutedPromiseContext<
R: Serialize + DeserializeOwned + Send,
T: RoutedPromiseListener<R> + DomObject,
> {
trusted: TrustedPromise,
receiver: Trusted<T>,
_phantom: std::marker::PhantomData<R>,
}
impl<T: RoutedPromiseListener + DomObject> RoutedPromiseContext<T> {
#[cfg_attr(crown, allow(crown::unrooted_must_root))]
fn response(self, response: T::Response, can_gc: CanGc) {
impl<R: Serialize + DeserializeOwned + Send, T: RoutedPromiseListener<R> + DomObject>
RoutedPromiseContext<R, T>
{
fn response(self, response: R, can_gc: CanGc) {
let promise = self.trusted.root();
self.receiver
.root()
@ -35,10 +38,13 @@ impl<T: RoutedPromiseListener + DomObject> RoutedPromiseContext<T> {
}
}
pub(crate) fn route_promise<T: RoutedPromiseListener + DomObject + 'static>(
pub(crate) fn route_promise<
R: Serialize + DeserializeOwned + Send + 'static,
T: RoutedPromiseListener<R> + DomObject + 'static,
>(
promise: &Rc<Promise>,
receiver: &T,
) -> IpcSender<T::Response> {
) -> IpcSender<R> {
let (action_sender, action_receiver) = ipc::channel().unwrap();
let task_source = receiver
.global()
@ -60,6 +66,7 @@ pub(crate) fn route_promise<T: RoutedPromiseListener + DomObject + 'static>(
let context = RoutedPromiseContext {
trusted,
receiver: trusted_receiver.clone(),
_phantom: Default::default(),
};
task_source.queue(task!(routed_promise_task: move|| {
context.response(message.unwrap(), CanGc::note());