[llvm-bugs] [Bug 27349] New: [ms] __interface cannot inherit from struct that is defined with __declspec(uuid())

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=27349

            Bug ID: 27349
           Summary: [ms] __interface cannot inherit from struct that is
                    defined with __declspec(uuid())
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: andrey.kuleshov at intel.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

!- msvc can inherit interface from a struct, but only if this struct is defined
with __declspec(uuid()). Clang fails compilation. -!

========Environment============
OS: Win
Language: c++
Version: trunk (3.9)

========Small Reproducer=======

struct __declspec(uuid("00000000-0000-0000-C000-000000000046")) IUnknown {};
__interface ISfFileIOPropertyPage : public IUnknown {};

=============Error=============
>>>clang-cl:
error: interface type cannot inherit from 'struct IUnknown'
__interface ISfFileIOPropertyPage : public IUnknown {};

>>>cl (msvc):
no diagnostics


Andrey Kuleshov
======
Software Engineer
Intel Compiler Team

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