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Start adding support for transforms in readable and writable streams (#36470)

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Start adding support for transforms in readable and writable streams.
Part of https://github.com/servo/servo/issues/34676
This commit is contained in:
Taym Haddadi 2025-04-28 13:02:55 +02:00 • committed by GitHub
parent 02b38adf43
commit 4d975e947b
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GPG key ID: B5690EEEBB952194
13 changed files with 394 additions and 161 deletions
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14
components/script/dom/readablebytestreamcontroller.rs
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@ -1612,7 +1612,7 @@ impl ReadableByteStreamController {
let realm = enter_realm(&*global);
let comp = InRealm::Entered(&realm);
let result = underlying_source
.call_pull_algorithm(controller, can_gc)
.call_pull_algorithm(controller, &global, can_gc)
.unwrap_or_else(|| {
let promise = Promise::new(&global, can_gc);
promise.resolve_native(&(), can_gc);
@ -1781,6 +1781,8 @@ impl ReadableByteStreamController {
/// <https://streams.spec.whatwg.org/#rbs-controller-private-cancel>
pub(crate) fn perform_cancel_steps(
&self,
cx: SafeJSContext,
global: &GlobalScope,
reason: SafeHandleValue,
can_gc: CanGc,
) -> Rc<Promise> {
@ -1794,13 +1796,12 @@ impl ReadableByteStreamController {
.underlying_source
.get()
.expect("Controller should have a source when the cancel steps are called into.");
let global = self.global();
// Let result be the result of performing this.[[cancelAlgorithm]], passing in reason.
let result = underlying_source
.call_cancel_algorithm(reason, can_gc)
.call_cancel_algorithm(cx, global, reason, can_gc)
.unwrap_or_else(|| {
let promise = Promise::new(&global, can_gc);
let promise = Promise::new(global, can_gc);
promise.resolve_native(&(), can_gc);
Ok(promise)
});
@ -1808,11 +1809,10 @@ impl ReadableByteStreamController {
let promise = result.unwrap_or_else(|error| {
let cx = GlobalScope::get_cx();
rooted!(in(*cx) let mut rval = UndefinedValue());
// TODO: check if `self.global()` is the right globalscope.
error
.clone()
.to_jsval(cx, &self.global(), rval.handle_mut(), can_gc);
let promise = Promise::new(&global, can_gc);
.to_jsval(cx, global, rval.handle_mut(), can_gc);
let promise = Promise::new(global, can_gc);
promise.reject_native(&rval.handle(), can_gc);
promise
});