[webkit-changes] [WebKit/WebKit] 0e9b29: NativePromise unnecessarily calls crossThreadCopy ...

Mon Oct 9 07:56:14 PDT 2023

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 0e9b295049f8da9354d232b8ab175b30ea65a0cb
      https://github.com/WebKit/WebKit/commit/0e9b295049f8da9354d232b8ab175b30ea65a0cb
  Author: Jean-Yves Avenard <jya at apple.com>
  Date:   2023-10-09 (Mon, 09 Oct 2023)

  Changed paths:
    M Source/WTF/wtf/NativePromise.h
    M Tools/TestWebKitAPI/Tests/WTF/NativePromise.cpp

  Log Message:
  -----------
  NativePromise unnecessarily calls crossThreadCopy with the completion promise
https://bugs.webkit.org/show_bug.cgi?id=262660
rdar://116489817

Reviewed by Youenn Fablet.

Avoid copying the data when not needed by separating the code path from
the standard resolve/reject from chained promise resolution.

Add API test to verify that the value isn't incorrectly moved for non-exclusive
promise.

* Source/WTF/wtf/NativePromise.h:
* Tools/TestWebKitAPI/Tests/WTF/NativePromise.cpp:
(TestWebKitAPI::TEST):

Canonical link: https://commits.webkit.org/269075@main