Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 99b626befab865c4f50048ef2c567c2a10d5d053
https://github.com/WebKit/WebKit/commit/99b626befab865c4f50048ef2c567c2a10d5d053
Author: Sam Weinig <[email protected]>
Date: 2025-07-04 (Fri, 04 Jul 2025)
Changed paths:
M Source/WTF/wtf/Compiler.h
M Source/WebCore/rendering/style/StyleBoxData.h
M Source/WebCore/rendering/style/StyleMiscNonInheritedData.h
M Source/WebCore/rendering/style/StyleMultiColData.h
M Source/WebCore/rendering/style/StyleRareInheritedData.h
M Source/WebCore/rendering/style/StyleRareNonInheritedData.h
M Source/WebCore/rendering/style/StyleSelfAlignmentData.h
Log Message:
-----------
[WTF] Provide a type hint to debuggers for opaque bitfield values where
supported
https://bugs.webkit.org/show_bug.cgi?id=295294
Reviewed by Darin Adler.
Newer versions of clang support an attribute, `preferred_type`, which provides
a hint to debuggers about what type is stored in opaqued bitfields:
https://clang.llvm.org/docs/AttributeReference.html#preferred-type.
This adds a new macro to wtf/Compiler.h called `PREFERRED_TYPE(...)` that
wraps the attribute when supported.
Some initial adoption of it was done in 'WebCore/rendering/style' to
illustrate how it can be used.
* Source/WTF/wtf/Compiler.h:
- Adds new PREFERRED_TYPE macro.
- Cleans up Compiler.h a bit, fixing typos, reducing some duplication and
making COMPILER_HAS_CPP_ATTRIBUTE a top level macro.
* Source/WebCore/rendering/style/StyleBoxData.h:
* Source/WebCore/rendering/style/StyleMiscNonInheritedData.h:
* Source/WebCore/rendering/style/StyleMultiColData.h:
* Source/WebCore/rendering/style/StyleRareInheritedData.h:
* Source/WebCore/rendering/style/StyleRareNonInheritedData.h:
* Source/WebCore/rendering/style/StyleSelfAlignmentData.h:
- Adopted PREFERRED_TYPE, replacing comments annotations.
Canonical link: https://commits.webkit.org/297027@main
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