I just came across this build failure while working on an upcoming patch that added a new file: In file included from /Users/antoine/Builds/Debug/DerivedSources/WebCore/unified-sources/UnifiedSource129.cpp:4: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/css/DOMCSSRegisterCustomProperty.cpp:38: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/style/StyleBuilderConverter.h:63: In file included from /Users/antoine/Builds/Debug/DerivedSources/WebCore/SVGElementTypeHelpers.h:34: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/svg/SVGElementInlines.h:28: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/dom/ElementInlines.h:28: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/dom/DocumentInlines.h:37: /Users/antoine/Code/safari/OpenSource/Source/WebCore/page/LocalDOMWindow.h:148:12: error: reference to 'MediaQueryList' is ambiguous RefPtr<MediaQueryList> matchMedia(const String&); /Users/antoine/Code/safari/OpenSource/Source/WebCore/page/LocalDOMWindow.h:74:7: note: candidate found by name lookup is 'WebCore::MediaQueryList' class MediaQueryList; In file included from /Users/antoine/Builds/Debug/DerivedSources/WebCore/unified-sources/UnifiedSource129.cpp:4: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/css/DOMCSSRegisterCustomProperty.cpp:34: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/style/CustomPropertyRegistry.h:28: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/css/StyleRule.h:30: /Users/antoine/Code/safari/OpenSource/Source/WebCore/css/query/MediaQuery.h:40:7: note: candidate found by name lookup is 'WebCore::MQ::MediaQueryList' using MediaQueryList = Vector<MediaQuery>; In file included from /Users/antoine/Builds/Debug/DerivedSources/WebCore/unified-sources/UnifiedSource129.cpp:4: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/css/DOMCSSRegisterCustomProperty.cpp:38: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/style/StyleBuilderConverter.h:63: In file included from /Users/antoine/Builds/Debug/DerivedSources/WebCore/SVGElementTypeHelpers.h:34: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/svg/SVGElementInlines.h:28: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/dom/ElementInlines.h:28: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/dom/DocumentInlines.h:37: /Users/antoine/Code/safari/OpenSource/Source/WebCore/page/LocalDOMWindow.h:148:12: error: reference to 'MediaQueryList' is ambiguous RefPtr<MediaQueryList> matchMedia(const String&); /Users/antoine/Code/safari/OpenSource/Source/WebCore/page/LocalDOMWindow.h:74:7: note: candidate found by name lookup is 'WebCore::MediaQueryList' class MediaQueryList; In file included from /Users/antoine/Builds/Debug/DerivedSources/WebCore/unified-sources/UnifiedSource129.cpp:4: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/css/DOMCSSRegisterCustomProperty.cpp:34: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/style/CustomPropertyRegistry.h:28: In file included from /Users/antoine/Code/safari/OpenSource/Source/WebCore/css/StyleRule.h:30: /Users/antoine/Code/safari/OpenSource/Source/WebCore/css/query/MediaQuery.h:40:7: note: candidate found by name lookup is 'WebCore::MQ::MediaQueryList' using MediaQueryList = Vector<MediaQuery>; 2 errors generated.
Pull request: https://github.com/WebKit/WebKit/pull/20231
Committed 270449@main (5a27613192bd): <https://commits.webkit.org/270449@main> Reviewed commits have been landed. Closing PR #20231 and removing active labels.
<rdar://problem/118179339>