On 2002-10-14 at 19:58:50, Piers Cawley wrote:
> I would expect Class to inherit from Object (along with everything
> else). It might be worth looking at a Smalltalk image or two at this
> point...
You might want to look at _Putting_Metaclasses_To_Work_ by Danforth and
Forman - or at Ruby, which follows the same model (with one extra class
introduced into the hierarchy).
In this model, classes are objects, but they are not instances of
their superclass. The "subclass" relation is separate from the
"instance of" relation. The minimal environment is this:
Object is an instance of Class.
Class is also an instance of Class - that is, an instance of itself.
Class is a subclass of Object.
Ruby's small variation consists of a class called Module between
Class and Object: Module (also an instance of Class) is a
subclass of Object and the direct superclass of Class.
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Mark REED | CNN Internet Technology
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