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MessagePort: implement disentanglement (#36654)

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Implement
[disentangle](https://html.spec.whatwg.org/multipage/#disentangle)
Remove bespoke gc logic which now becomes unnecessary. 
Adds a wpt test that hits the "disentangle while in transfer" logic.
Updates streams code, fixing an error where disentanglement is
conditional on an error.

Test coverage: there are existing tests in
`/webmessaging/message-channels/close-event/explicitly-closed.tentative.window.js`
for the no transfer case, and the simple completed transfer case, and
this PR adds a test for the more complicated transfer in progress case.

Fix https://github.com/servo/servo/issues/36465

---------

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>
This commit is contained in:
Gregory Terzian 2025-04-30 12:49:38 +02:00 • committed by GitHub
parent c46402e222
commit af5d665efa
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19 changed files with 356 additions and 191 deletions
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7
components/shared/constellation/structured_data/transferable.rs
View file

@ -77,7 +77,12 @@ impl MessagePortImpl {
self.entangled_port
}
/// Entanged this port with another.
/// <https://html.spec.whatwg.org/multipage/#disentangle>
pub fn disentangle(&mut self) -> Option<MessagePortId> {
self.entangled_port.take()
}
/// <https://html.spec.whatwg.org/multipage/#entangle>
pub fn entangle(&mut self, other_id: MessagePortId) {
self.entangled_port = Some(other_id);
}