Am 14.02.2021 um 01:09 schrieb Ben Grasset via fpc-pascal:
This seems possibly a *little* too similar to the existing Interface type in Object Pascal, however, I *would* really like to see some kind of functionality that basically amounts to "has the same capabilities as Interfaces and works on records and objects too, but does NOT require any kind of heap allocation".
My personal idea for this would be to allow for duck typing regarding interfaces: as long as the methods of the class, object or record satisfy those of the interface then it's possible to assign it. In case of objects and records one would mainly use raw interfaces (aka corba ones) instead of reference counted one as otherwise one would need to provide the methods of IInterface as well though one might not be able to implement them in a usable way as stack objects simply don't work that way.
So whether it be this, or just an improvement on the Interfaces we already have, I'd definitely personally be in favor of something that "works like Interfaces except minus the negative performance implications."
There are no significant performance implications of interfaces. They're essentially a virtual method call, something that one is doing all day long with Object Pascal classes.
Regards, Sven _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
