[fpc-devel] generic and type compatibility / interface vs class ...

[Martin Frb]

ok, so if I have
    procedure bar(f: IntfFoo);

I can do
    bar(SomeClassInstanceThatImplementsFoo);

makes sense, the interface can be gotten at the time of calling.

Now if I have

   generic MyGen<    P: IntfFoo >

then I can also do
   specialize MyGen<SomeClassInstanceThatImplementsFoo>

is that indented?

Because now if I have in MyGen

    FMyField: P;

and I try to assign an interface to it... Then that can't work.

Of course there are cases where it is the other way round, and may be 
useful.

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Just trying to find out if that is a feature, or an issue that will 
eventually be changed?