When using sendWithPromisedReplyOnDispatcher you need to specify the WorkQueue twice like so: `connection.sendWithPromisedReplyOnDispatcher(message, workqueue)->whenSettled(workqueue, [] { })` the first SerialFunctionDispatcher is used to determined with the Message's IPC Decoder needs to run and the 2nd on where the callback will run. The 1st SerialFunctionDispatcher should be able to be deducted from the second. This can now be achieved easily following bug 270282. and so you could write: `connection.sendWithPromisedReply(message)->whenSettled(workqueue, [] { })` The decoder would be automatically first dispatched when a completion handler is attached to the promise.
<rdar://problem/123857833>
Pull request: https://github.com/WebKit/WebKit/pull/25335
Committed 275764@main (bb6155442858): <https://commits.webkit.org/275764@main> Reviewed commits have been landed. Closing PR #25335 and removing active labels.