[self-interest] Language enhancements

Michael Latta lattam at mac.com
Fri Jun 25 20:12:52 UTC 2004

The current license basically says do what you want with it so long as 
we do not get blamed.


On Jun 25, 2004, at 11:18 AM, Kyle Hayes wrote:

> On Friday 25 June 2004 08:48, Michael Latta wrote:
>> I am considering creating a VM for Self with some language extensions
>> and would like comments:
>> 1) I am considering making the inheritance of structural slots
>> declarative.  Rather than listing the copydowns in each child object,
>> allowing the parent to annotate a slot as copied.  The child objects
>> would still need to be able to exclude those they replace with
>> behavior.
>> 2) I am considering adding an annotation to a slot that will cause it
>> to be cloned when the object is cloned.
>> These ideas come from working with modeling where there is more
>> declarative work.  The items above would also need syntax to support
>> textual definition of those aspects.  For example 2 above could be
>> <slot>+ to indicate aggregation.  The idea is to reduce errors and
>> reduce code to manage these aspects of a system.
>> Let me know what you think, or if there are good reasons to leave it 
>> in
>> code.
> A little off track, but, I'd like to see the following in Self:
> 1) a drastically simplified VM so that it can be more easily ported.  
> All
> ports but the Sparc and Mac are a little flaky in my experience 
> (sometimes
> a lot flaky).  Having a VM that is so difficult to port makes support 
> and
> expansion of the Self "marketplace" more difficult.
> 2) move more of the optimization into Self rather than hardcoded in 
> the VM
> in C++.
> I like your ideas about the language!  While I like Self's simplicity a
> lot, it is often nice to have reasonable short cuts for very common 
> idioms
> like those you've covered above.
> I'm unclear on what the current license of Self is.  It was a bit
> restrictive at one point, but that was a long time ago.
> Best,
> Kyle
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