Self-interest May 2002

self-interest@lists.selflanguage.org

9 participants
8 discussions

Droplet
by cramakrishnan＠acm.org 19 Jun '02

19 Jun '02

Jecel Assumpcao Jr writes: > (note - since I don't know how to set up the SELF_WORKING_DIR > variable the droplet didn't work) You have a few options here. One is to hack. :) You can change the Applescript to point directly to Self. Open the SelfDroplet project in Project Builder (you might be able to do this in the Applescript Script Editor too) and change: "\"${SELF_WORKING_DIR}\"/vm/mac_osx/vm_project/build/Self.app/Contents/MacOS/Self -s \"" & unixFileName & "\"" to e.g., : "Projects/self/vm/mac_osx/vm_project/build/Self.app/Contents/MacOS/Self -s \"" & unixFileName & "\"" Another is to set the SELF_WORKING_DIR in your .cshrc. A third, probably the most "MacOS X" way is to set this in your ~/.MacOSX/environment.plist . See <http://developer.apple.com/qa/qa2001/qa1067.html> for details. - sekhar -- C. Ramakrishnan cramakrishnan(a)acm.org

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Re: [self-interest] newbie question
by cramakrishnan＠acm.org 05 Jun '02

05 Jun '02

Arjen van Elteren writes: > Unfortunately, I encountered a small glitch. Every time I try to add a slot > to the globals object (by adding or copying a slot) the system simply > crashes. Any hints ??? Yeah, this happens to me in OS X also. I can add a slot without difficulty in OS 9, though. - sekhar -- C. Ramakrishnan cramakrishnan(a)acm.org

4 6

Self hw
by corequester 30 May '02

30 May '02

Hi Selfers :-) Just a short question from me.. Would Self run on a SparcStation IPC(4/40)? What's the slowest hardware capable of running Self? thanks! coreQuester

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New file uploaded to self-interest
by self-interest＠yahoogroups.com 27 May '02

27 May '02

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the self-interest group. File : / Looking for fast Internet service? Uploaded by : thedslguy2002 <thedslguy2002(a)yahoo.co.uk> Description : Click above to learn what DIRECTV has to offer. You can access this file at the URL http://groups.yahoo.com/group/self-interest/files/%20Looking%20for%20fast%2… To learn more about file sharing for your group, please visit http://help.yahoo.com/help/us/groups/files Regards, thedslguy2002 <thedslguy2002(a)yahoo.co.uk>

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New file uploaded to self-interest
by self-interest＠yahoogroups.com 20 May '02

20 May '02

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the self-interest group. File : / Click Here! Uploaded by : klyebarnesnobel <klyebarnesnobel(a)yahoo.co.uk> Description : Look at all these different credit cards you can get! Good, bad, or no credit. You can access this file at the URL http://groups.yahoo.com/group/self-interest/files/%20Click%20Here%21 To learn more about file sharing for your group, please visit http://help.yahoo.com/help/us/groups/files Regards, klyebarnesnobel <klyebarnesnobel(a)yahoo.co.uk>

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Re: [self-interest] Fix morphs
by Randy Smith 16 May '02

16 May '02

I am not certain what you want, but I think you are saying you want an object that follows you through the world as you move from one place to another. To do that, you can always just attach your morph to one of your screenEdges. Your screenEdges are a set of four lines just out of reach for each user, that bound their view rectangle onto the world. When there are multiple users in the world, you can see these edges go by as another user passes by your position in the wolrd. Unfortunately, the screen edges for each user are rather hard to find, we should have put an easy access method in traits hand or something. Here is some code: | world. stickyMorph. edge. myHand | world: (desktop named: 'Self 1')."or however you want to get the world of interest." stickyMorph: morph copy. "or however you want to make your sticky morph." myHand: world hands first. "or however you want to get your cursor" edge: (world morphs asList copyFilteredBy: [ | :m | (m morphTypeName = screenEdge morphTypeName) && [m winCanvas = myHand winCanvasForHand] ] ) first. "edge is now the first of your 4 screenEdges, the one across the top." stickyMorph globalPosition: edge globalPosition + (20@30). edge addMorph: stickyMorph. The stickyMorph now follows you everywhere. Hope that helps! --Randy > > Hi, > > For an application that I'm writing in the moment, I need a morph that has > fix position to the current view. For example like the radarView. When I > looked at this implementation I found out that it works in different way > then I mentioned. The radarView is not fixed, it just ignore the movements > that was directed by the radarView itself. For example, if you have 2 > radarViews and you use one of them to move to the right, the other is not > visible in the current view anymore. > What I need is something like the flaps in Squeak, but I found it not very > helpful to look at their implementation. For me the differences between the > two different implementations looks to great, maybe I'm wrong. > Any idea how I can do things like that in self? > > Thorsten Dittmar > > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > >

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argument count
by Jecel Assumpcao Jr 10 May '02

10 May '02

I was able to borrow an iBook to check out Self 4.1.5 yesterday (note - since I don't know how to set up the SELF_WORKING_DIR variable the droplet didn't work) and was interested in seeing how the new "argument count" bytecode was used. I does make an interpreter's life easier, but the code expansion is a bit too much. An interesting alternative would be to define the two remaining opcodes as "send1" and "selfSend1" and only use "argument count" for the rarer cases of two or more arguments. One thing that seemed surprising to me was the direct evaluation order of the arguments, with the receiver ending up buried in the stack. I thought we used the reverse order with the receiver on top, so I checked in Self 4.0 and saw that it too used the direct order. In fact, my tinySelf 1 does too (as it had to, in order to work with Self 4.0 images) so I obviously knew this a few years back. My tinySelf 0 parser did generate code to evaluate things in the reverse order but since it only read in sources and not snapshot I never noticed this mistake. I checked Craig Chambers' thesis but his single example of bytecodes only has unary messages and could be interpreted either way. The simple embedded Self hardware I am designing (a 16 bit machine described in http://www.merlintec.com:8080/hardware/oliver) does evaluate arguments in the reverse order, so translating Self bytecodes to its native machine language will be a little more complicated than I had hoped. I have investigated alternative, such as the KMachine (http://fare.tunes.org/tmp/emergent/kmachine.htm) which are a much better fit for the direct order evaluation but that will have to wait for a larger project than this one. -- Jecel

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Revised Multiple Dispatch with Prototypes Paper
by Lee Randolph Salzman 01 May '02

01 May '02

I've done a lot of revision to my original paper on PMD to make it more easily digestable and understandable. The revision is at: http://tunes.org/~eihrul/pmd.pdf I also have a language in the works (and in fact already have a implementation of it) based on PMD that is very much like Self, only with multiple dispatch. :) I hope to release more information as the system solidifies in the coming weeks and becomes more polished. Lee

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Self-interest May 2002