Re: [stack] Some thoughts on Object Cat

On Apr 18, 2008, at 6:01 PM, Christopher Diggins wrote:

> On Fri, Apr 18, 2008 at 4:42 PM, Daniel Ehrenberg  
> <[email protected]> wrote:
>>
>
>> In Io, for example, you might do
>
> I don't know IO

You must learn Io before tackling a new prototype system. In  
particular, you must be aware of all of the problems inherent in Io's  
system. You must look at Self as well if you've not already.

There's also another very interesting prototype language that's quite  
different from Io and Self called Kevo. There's very little  
information about it available, but what's there is worth looking at.  
In short, it does away with delegation. All objects are self- 
sufficient and new objects are created through the composition of  
existing objects. Objects have creation-time sharing, not lifetime  
sharing. It's very much in line with Wittgenstein's writings on  
prototypes.

I did a fair bit of work (all evaporated) on prototype-based languages  
before working on Fifth. It does seem that we tend to be attracted to  
similar approaches.

- John