Hi Jason,

On 15 Oct 2024, at 15:18, Jason Merrill wrote:

> On 10/13/24 7:55 AM, Simon Martin wrote:
>> The patch that I merged via r15-4282-g60163c85730e6b breaks the build
>> for the rust front-end because it does not work well when virtual
>> inheritance is in play.
>>
>> The problem is that in such a case, an overrider and its overridden 
>> base
>> method might have a different DECL_VINDEX, and the derived method 
>> would
>> be incorrectly considered as hiding the base one.
>>
>> This patch fixes this by not comparing the DECL_VINDEX anymore, but
>> rather going back to comparing the signatures, only after having
>> excluded conversion operators to different types.
>
> Incidentally, it seems I was wrong to say you can just compare 
> DECL_NAME: the name ends up being different in case of typedefs like 
> in inherit/virtual14.C, so we do need to compare the type after all.
Thanks for calling this out. I’ll integrate such a case in my next 
iteration.

Simon

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