[webkit-changes] [WebKit/WebKit] 72ed5e: Avoid some string allocations in JSStringJoiner::j...

[Chris Dumez]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 72ed5e715480a97da6c55be10cd6c058287df888
      https://github.com/WebKit/WebKit/commit/72ed5e715480a97da6c55be10cd6c058287df888
  Author: Chris Dumez <cdumez at apple.com>
  Date:   2023-03-28 (Tue, 28 Mar 2023)

  Changed paths:
    M Source/JavaScriptCore/runtime/JSStringJoiner.h
    M Source/WTF/wtf/text/StringView.h

  Log Message:
  -----------
  Avoid some string allocations in JSStringJoiner::join()
https://bugs.webkit.org/show_bug.cgi?id=254594

Reviewed by Yusuke Suzuki.

Avoid some string allocations in JSStringJoiner::join(), in the common case
where the StringViewWithUnderlyingString's view covers the whole underlying
string.

* Source/JavaScriptCore/runtime/JSStringJoiner.h:
(JSC::JSStringJoiner::join):
* Source/WTF/wtf/text/StringView.h:
(WTF::StringViewWithUnderlyingString::toString const):

Canonical link: https://commits.webkit.org/262228@main