[webkit-changes] [WebKit/WebKit] 1758ef: Make FontCascade loggable

[Simon Fraser]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 1758ef2b35fc15e6f4e94e75509c325511701510
      https://github.com/WebKit/WebKit/commit/1758ef2b35fc15e6f4e94e75509c325511701510
  Author: Simon Fraser <simon.fraser at apple.com>
  Date:   2024-12-02 (Mon, 02 Dec 2024)

  Changed paths:
    M Source/WebCore/platform/graphics/FontCascade.cpp
    M Source/WebCore/platform/graphics/FontCascade.h
    M Source/WebCore/platform/graphics/FontCascadeDescription.cpp
    M Source/WebCore/platform/graphics/FontCascadeDescription.h
    M Source/WebCore/platform/graphics/FontCascadeFonts.cpp
    M Source/WebCore/platform/graphics/FontCascadeFonts.h
    M Source/WebCore/platform/graphics/FontSelector.cpp
    M Source/WebCore/platform/graphics/FontSelector.h
    M Source/WebCore/rendering/RenderElement.cpp
    M Source/WebCore/rendering/style/StyleInheritedData.cpp

  Log Message:
  -----------
  Make FontCascade loggable
https://bugs.webkit.org/show_bug.cgi?id=283932
rdar://140805857

Reviewed by Tim Nguyen.

FontCascade changes are responsible for a lot of Layout style diffs.
It's useful to be able to get some logging information about FontCascade.

This is not complete logging, just enough to give some basic information,
and reflect why operator== can return false.

* Source/WebCore/platform/graphics/FontCascade.cpp:
(WebCore::operator<<):
* Source/WebCore/platform/graphics/FontCascade.h:
* Source/WebCore/platform/graphics/FontCascadeDescription.cpp:
(WebCore::operator<<):
* Source/WebCore/platform/graphics/FontCascadeDescription.h:
* Source/WebCore/platform/graphics/FontCascadeFonts.cpp:
(WebCore::operator<<):
* Source/WebCore/platform/graphics/FontCascadeFonts.h:
(WebCore::FontCascadeFonts::fontSelector const):
* Source/WebCore/platform/graphics/FontSelector.cpp:
(WebCore::operator<<):
* Source/WebCore/platform/graphics/FontSelector.h:
* Source/WebCore/rendering/RenderElement.cpp:
(WebCore::logStyleDifference): Just tidy it up a bit.
(WebCore::RenderElement::setStyle):
* Source/WebCore/rendering/style/StyleInheritedData.cpp:
(WebCore::StyleInheritedData::dumpDifferences const):

Canonical link: https://commits.webkit.org/287245@main



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