241414 2022-06-08 06:05:58 -0700 [JSC] Add support for Atomics.waitAsync 2022-11-28 00:13:47 -0800 1 1 1 Unclassified WebKit JavaScriptCore Safari Technology Preview All All RESOLVED FIXED InRadar P2 Normal --- 1 florens yijia_huang chi187 jensimmons orichidsjy saam webkit-bug-importer yijia_huang ysuzuki oldest_to_newest 1874703 0 florens 2022-06-08 06:05:58 -0700 We at StackBlitz are using Atomics.waitAsync (https://github.com/tc39/proposal-atomics-wait-async, apparently stage 3 and shipped in Chromium) on stackblitz.com to power our Node.js-in-the-browser port (called WebContainers). Firefox doesn't implement Atomics.waitAsync either, but we were able to implement a polyfill using workers-in-workers, something that is not possible in Safari at this time. The lack of Atomics.waitAsync in WebKit is one of the things stopping us from offering WebContainers to users of Safari and other WebKit-based browsers at this time. (Others include bug 174931, bug 238442, and possibly more we haven't identified yet.) 1874764 1 florens 2022-06-08 11:03:47 -0700 Firefox is currently prototyping: https://groups.google.com/a/mozilla.org/g/dev-platform/c/Z5TPivxh1Xs 1874777 2 webkit-bug-importer 2022-06-08 12:10:35 -0700 <rdar://problem/94655073> 1895627 3 orichidsjy 2022-09-01 15:53:51 -0700 Given that this bug is also relevant to the implementation of RegExp lookbehind, please also take time to look at https://bugs.webkit.org/show_bug.cgi?id=174931 which is also needed for a higher priority. It's also noted that Atomics.waitAsync has been shipped in both Chromium and Firefox now. 1901219 4 yijia_huang 2022-09-26 10:05:37 -0700 *** Bug 245676 has been marked as a duplicate of this bug. *** 1906545 5 yijia_huang 2022-10-18 11:57:38 -0700 Pull request: https://github.com/WebKit/WebKit/pull/5333 1907616 6 yijia_huang 2022-10-23 00:17:11 -0700 Pull request: https://github.com/WebKit/WebKit/pull/5683 1914908 7 ews-feeder 2022-11-28 00:13:45 -0800 Committed 257061@main (7e3fb31d5987): <https://commits.webkit.org/257061@main> Reviewed commits have been landed. Closing PR #5333 and removing active labels.