On 03 Jul 2014, at 10:52, Max Leske <maxleske@gmail.com> wrote:

On 03.07.2014, at 10:21, Marcus Denker <marcus.denker@inria.fr> wrote:

Now classes with special Slots are shown with a special class definition (this is just a stand-in, not
final� e.g. we need to add first class globals and think about what to do with #category� so we
will see. For now please treat this as just a stand-in for playing with things.


<slots.png>

The idea is that we need to actually use it and then see what to change in the next iteration.

And it should stay always compatible: if you do not use special slots, it is compatible, if you do,
you get more power at the price of not being portable to other systems. But even in this case,
the slots do give value: e.g. we will be able to add very very easily breakpoints or reflectively
change behaviour for a slot (without chaining its definition). This will be very powerful.

Marcus

Sounds exciting! But I don�t quite get what �special slots� are and what they can do. Is there any resource I can take a look at to get a better understanding?

The paper has some examples: http://rmod.lille.inria.fr/archives/papers/Verw11a-OOSPLA11-FlexibleObjectLayouts.pdf

Another direction that is interesting is Magritte: instead of meta-describing instance variables with some convention of class
side methods, you could just define Slots that have all the Magritte style meta data.

Marcus