Self-interest October 2011

self-interest@lists.selflanguage.org

4 participants
2 discussions

Re: [self-interest] Changing prototype chain as state machine
by David Goehrig 27 Oct '11

27 Oct '11

On Sep 30, 2011, at 4:54 PM, "Jecel Assumpcao Jr." <jecel(a)merlintec.com> wrote: > Are we talking about the same kind of map? The ones in my implementation > are the hidden structure in the VM which play the roles that classes > play in Smalltalk virtual machines. > Yes we are, I just want to see them exposed :) The classiness of maps is also a type definition. If you define class as a set of known behaviors map as class works. Exposing the underlying map implementation tothe language layer could provide an interesting way to guard or hook method sends. Think assert x is a foo, therefore x can bar, but x doesn't bar so x is not a foo. You can walk the mirror and extract this data, but you loose the history of transformation. > They are 100% invisible at the Self > language level. So much so that Ole Agesen had to recreate the > equivalent at the language level the hard way in his "gold" project: > > http://selflanguage.org/documentation/published/gold > As always you are a font of information, thanks Jecel.

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A few questions from a smalltalker
by Bernat Romagosa 27 Oct '11

27 Oct '11

Hi all, I'm a smalltalker who's looking to learn Self, and I'm wondering whether there's a short tutorial that teaches what should I learn in order to "get" Self. I've been searching around in this list and in the Self blog, but I couldn't find much stuff. The questions that come to my mind when I peek around the Self GUI are: ** Where is the Class Browser?* I know this must make no sense in Self as there are no Classes to browse, but then: how do you explore the system library? How do you know which objects are there to copy and what can they do? ** How does one create an object?* I'm not sure if "create" is the right word to use. I mean it the same way one would say "instantiate a class" in Smalltalk. I guess if Self has no classes, what you actually do is to "copy" existing objects and modify them, is that right? ** Can you print stuff?* I noticed that shells can both DoIt and GetIt stuff, but not PrintIt. Does this respond to some design principle? Please excuse me if the questions sound lame or basic, I'm not trying to compare both languages, just looking for a shortcut so I don't have to go through the whole tutorial :) Thanks a lot! -- Bernat Romagosa.

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Self-interest October 2011