Bug 234498

Summary: [Win] MSVC reports "COMPropertyBag.h(233): error C2385: ambiguous access of 'IUnknown'" with /std:c++20
Product: WebKit Reporter: Fujii Hironori <Hironori.Fujii>
Component: WebKit Misc.Assignee: Fujii Hironori <Hironori.Fujii>
Status: RESOLVED FIXED    
Severity: Normal CC: don.olmstead, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 233448    
Attachments:
Description Flags
Patch none

Fujii Hironori
Reported 2021-12-19 20:32:41 PST
[Win] MSVC reports "COMPropertyBag.h(233): error C2385: ambiguous access of 'IUnknown'" with /std:c++20 > C:\home\webkit\gc\Source\WebKitLegacy\win\COMPropertyBag.h(233): error C2385: ambiguous access of 'IUnknown' This problem has been reported in the following ticket, and it has a workaround. error C2385: ambiguous access of 'IUnknown' referring to common base class in VS2017.7 Preview 3 - Visual Studio Feedback https://developercommunity.visualstudio.com/t/error-c2385-ambiguous-access-of-iunknown-referring/230955
Attachments
Patch (1.93 KB, patch)
2021-12-19 20:39 PST, Fujii Hironori 		no flags
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Fujii Hironori
Comment 1 2021-12-19 20:39:35 PST
Created attachment 447575 [details] Patch
EWS
Comment 2 2021-12-20 12:20:52 PST
Committed r287272 (245428@main): <https://commits.webkit.org/245428@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 447575 [details].
Radar WebKit Bug Importer
Comment 3 2021-12-20 12:21:16 PST
<rdar://problem/86735423>
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