Alan Kay on the Meaning of “Object-Oriented Programming” (2003)

Re:Alan Kay on the Meaning of “Object-Oriented Programming” ... by chrisseaton on Sunday March 17, 2019 @10:13PM (#19418221)

But that's what I mean - you could implement non-virtual methods using the same technique as virtual methods, if you wanted to. And using static analysis or profiling you could implement virtual methods as non-virtual methods.

Are you telling me that if I turn on a compiler optimisation my message passing program suddenly becomes a method call system?

So the difference cannot be what it compiles to.

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Re:Alan Kay on the Meaning of “Object-Oriented Programming” ... by galaxyLogic on Tuesday March 19, 2019 @10:46AM (#19431250)

You can not turn your virtual methods into non-virtual ones without affecting what your user-level program does. You decide whether you use virtual methods or not in your C++ program, not the compiler. They affect what your program does not simply how it does it.

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