[webkit-changes] [WebKit/WebKit] 1d4bf9: Reserve capacity for SelectorFilter::m_parentStack

[Chris Dumez]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 1d4bf960fa26c85635d3a3c15b1eecc837fba280
      https://github.com/WebKit/WebKit/commit/1d4bf960fa26c85635d3a3c15b1eecc837fba280
  Author: Chris Dumez <cdumez at apple.com>
  Date:   2023-03-24 (Fri, 24 Mar 2023)

  Changed paths:
    M Source/WebCore/css/SelectorFilter.cpp
    M Source/WebCore/css/SelectorFilter.h
    M Source/WebCore/style/StyleInvalidator.cpp

  Log Message:
  -----------
  Reserve capacity for SelectorFilter::m_parentStack
https://bugs.webkit.org/show_bug.cgi?id=254423

Reviewed by Darin Adler.

Reserve capacity for SelectorFilter::m_parentStack for cases where we know how
many ancestors we're about to push.

* Source/WebCore/css/SelectorFilter.cpp:
(WebCore::SelectorFilter::initializeParentStack):
* Source/WebCore/css/SelectorFilter.h:
(WebCore::SelectorFilter::parentStackReserveInitialCapacity):
* Source/WebCore/style/StyleInvalidator.cpp:
(WebCore::Style::Invalidator::invalidateStyleWithMatchElement):

Canonical link: https://commits.webkit.org/262096@main