[Pharo-users] Slots

[Bob Williams]

I am trying to duplicate the typed slot example in the paper "Flexible 
Object Layout". I did create the classes for TypedSlot and FloatSlot, 
but I am trying to find the best way to set the type for class FloatSlot 
to the class Float. In the example in the paper it appears to be set at 
the time the class is created however that does not seem to be an option 
when using PharoClassInstaller. I was thinking about using some form of 
lazy initialization, but is there a better way; a method anticipated by 
the Pharo 3 designers? I used:

PharoClassInstaller make: [ :aSCB |
    aSCB
        superclass: Slot;
        name: #TypedSlot;
        slots: #(type);
        category: 'BW-Testing' ].
PharoClassInstaller make: [ :aSCB |
    aSCB
        superclass: TypedSlot;
        name: #FloatSlot;
        category: 'BW-Testing' ].

bw