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__ComObject doesn't support dynamic interface map #112375

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Merged
merged 2 commits into from
Feb 12, 2025
Merged

__ComObject doesn't support dynamic interface map #112375

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42d538e
__ComObject doesn't support dynamic interface map
AaronRobinsonMSFT Feb 10, 2025
769a78c
Add test
AaronRobinsonMSFT Feb 11, 2025
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9 changes: 6 additions & 3 deletions src/coreclr/vm/methodtable.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1090,9 +1090,12 @@ class MethodTable
{
LIMITED_METHOD_DAC_CONTRACT;

// currently all ComObjects except
// for __ComObject have dynamic Interface maps
return GetNumInterfaces() > 0 && IsComObjectType() && !ParentEquals(g_pObjectClass);
// All ComObjects except for __ComObject
// have dynamic Interface maps
return GetNumInterfaces() > 0
&& IsComObjectType()
&& !ParentEquals(g_pObjectClass)
&& this != g_pBaseCOMObject;
}
#endif // FEATURE_COMINTEROP

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