> On Feb 14, 2021, at 9:55 AM, Sven Barth via fpc-pascal
> <fpc-pascal@lists.freepascal.org> wrote:
>
> No, interfaces by *themselves* don't mean that. An interface instance is
> merely a shifted Self pointer that points to the static VMT of which the
> entries correct the Self pointer again upon the method call. This can be seen
> in GetInterfaceByEntry in rtl/inc/objpas.inc (the core function dealing with
> the casting of class to interface).
Remind me again, what happens when you cast a class to an interface? It's a
runtime check with GetInterfaceByEntry?
Regards,
Ryan Joseph
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