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implement Writablestreamdefaultcontroller abortcontroller (#37511)

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using abort signal and abortcontroller in
Writablestreamdefaultcontroller

Part of https://github.com/servo/servo/issues/34866

---------

Signed-off-by: Taym Haddadi <haddadi.taym@gmail.com>
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Taym Haddadi 2025-06-18 08:26:05 -07:00 • committed by GitHub
parent 3ee339eb6d
commit fc2135cc02
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9 changed files with 63 additions and 119 deletions
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20
components/script/dom/writablestream.rs
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@ -655,6 +655,7 @@ impl WritableStream {
cx: SafeJSContext,
global: &GlobalScope,
provided_reason: SafeHandleValue,
realm: InRealm,
can_gc: CanGc,
) -> Rc<Promise> {
// If stream.[[state]] is "closed" or "errored",
@ -663,10 +664,21 @@ impl WritableStream {
return Promise::new_resolved(global, cx, (), can_gc);
}
// TODO: Signal abort on stream.[[controller]].[[abortController]] with reason.
// Signal abort on stream.[[controller]].[[abortController]] with reason.
self.get_controller()
.expect("Stream must have a controller.")
.signal_abort(cx, provided_reason, realm, can_gc);
// TODO: If state is "closed" or "errored", return a promise resolved with undefined.
// Note: state may have changed because of signal above.
// Let state be stream.[[state]].
let state = self.state.get();
// If state is "closed" or "errored", return a promise resolved with undefined.
if matches!(
state,
WritableStreamState::Closed | WritableStreamState::Errored
) {
return Promise::new_resolved(global, cx, (), can_gc);
}
// If stream.[[pendingAbortRequest]] is not undefined,
if self.pending_abort_request.borrow().is_some() {
@ -1077,7 +1089,7 @@ impl WritableStreamMethods<crate::DomTypeHolder> for WritableStream {
}
// Return ! WritableStreamAbort(this, reason).
self.abort(cx, &global, reason, can_gc)
self.abort(cx, &global, reason, realm, can_gc)
}
/// <https://streams.spec.whatwg.org/#ws-close>