Joost van der Sluis пишет:
...
I don't know what's the best way to fix this.
I see three solutions:
1: replace the 'call' in the wrapper with a 'jmp'. I've tried this and
it works, but when the function returns, the 'self'-class-pointer is not
converted to the interface-pointer. But I don't see why this is done in
the first place?!? Other problem is that you get a somewhat strange
function-name in your stacktrace. (the name of the wrapper)
I just tested, Delphi does it this way.
2: See if we can let the caller do the
interface-pointer-to-class-pointer conversion. That way the wrapper is
not necessary anymore. Leads to somewhat faster code, though less
compact. But this is only possible if the caller has enough information
to do the conversion. I'm not sure if that's the case.
Unfortunately, the caller cannot make any assumptions about the implementor's
internal structure. The callee side may as well be a non-Pascal code.
Regards,
Sergei
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