RESOLVED FIXED 262660
NativePromise unnecessarily calls crossThreadCopy with the completion promise 
https://bugs.webkit.org/show_bug.cgi?id=262660
Summary NativePromise unnecessarily calls crossThreadCopy with the completion promise
Jean-Yves Avenard [:jya]
Reported 2023-10-04 15:40:29 PDT
In bug 262437, changes were made to call crossThreadCopy when needed. When we have a completion promise, which will in its turn be resolved/rejected with the resolve/reject value again, we call once again crossThreadCopy on the value as it's using a common code path for resolving/rejecting it. We could easily distinguish the case from the standard resolve/reject and not call crossThreadCopy() then (though this one is mostly a no-op as we are simply moving the value)
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Radar WebKit Bug Importer
Comment 1 2023-10-04 15:40:55 PDT
<rdar://problem/116489817>
Jean-Yves Avenard [:jya]
Comment 2 2023-10-04 18:01:34 PDT
Pull request: https://github.com/WebKit/WebKit/pull/18664
EWS
Comment 3 2023-10-09 07:54:48 PDT
Committed 269075@main (0e9b295049f8): <https://commits.webkit.org/269075@main> Reviewed commits have been landed. Closing PR #18664 and removing active labels.
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