Self-interest

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1905 discussions

cmake help
by Valery Ushakov 31 Aug '23

31 Aug '23

Could someone with cmake clue, please, take a look at: https://github.com/russellallen/self/issues/141 "precompiled header rule misses build type flags" (Never mind my follow-up ramblings about -include - those have been fixed) Alternatively, the problematic rule to actually precompile the precompiled header can be disabled so that _precompiled.hh is just processed as a normal header and the problem is just dodged. The speed gain from the precompiled header is probably barely above the statistical noise (even now, when the compilation time is down an order of magnitude with the pragma fixes). But I guess the fix shouldn't be that hard for someone who groks cmake. Thanks in advance. -uwe

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What is conversionPrologueTest actually testing?
by Russell Allen 31 Aug '23

31 Aug '23

Hey all, It's been a while, but things are actually happening, Self-wise. I'll do up a email at some point, or you could drop by the Discord which I'm trying to hang out at. However, I've got a question: In the `tests` object, there are two methods which together form a test which is part of the VM Suite. They are: conversionPrologueTest = ( | | 'Testing conversion of method in prologue...' print. "shell useNIC." _Flush. [conversionPrologueTestLoop]. "browsing" (message copy receiver: self Selector: 'conversionPrologueTestLoop') fork. 1000 do: [ (vector copySize: 17 FillingWith: 0) asMirror removeAll. times delay: 1. '.' print. ]. 'ok' printLine. self). and conversionPrologueTestLoop = ( | v. vv. | v: vector copySize: 100. 1000 do: [vv: v at: 3 IfAbsent: 17. times delay: 1. '*' print.]. self). If you run the test, it puts out a nice pattern of * and . Dave left a comment: /Added in order to test the fix to the VM crashing that surfaced doing Klein export work in winter/spring 2003. -- David Ungar/ But sadly I am not any wiser :) What was this for? Does this test still have a meaning and reason for existing? - Russell

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UK Smalltalk User Group Meeting: Show'n'Tell - 26 July 2023
by Giovanni Corriga 26 Jul '23

26 Jul '23

For this month's UKSTUG meeting, we'll open the floor to the whole audience and let people show what they are working on. If you have an interesting project to show, or if you'd like to get some help with some hard problem, just show up and be ready to present! This will be an online meeting from home. If you'd like to join us, please sign up in advance on the meeting's Meetup page ( https://www.meetup.com/ukstug/events/294397093/ ) to receive the meeting details. Don’t forget to bring your laptop and drinks!

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UK Smalltalk User Group Meeting: David Buck - Beagle Smalltalk, 28 June 2023
by Giovanni Corriga 26 Jun '23

26 Jun '23

For the UKSTUG June meeting, Simberon's David Buck will present Beagle Smalltalk. Over the past 8 years, David has been developing a Smalltalk virtual machine and image. He used it to release two Smalltalk games which ran on Android and iPhone devices. More recently, he's re-written the VM to use a new bytecode set and re-written the Smalltalk compiler with a new framework to make a new Smalltalk environment called Beagle Smalltalk named after the ship that took Darwin on his voyage of discovery. David plans to release this as an open-source Smalltalk to help and encourage kids to explore the world of programming. In this talk, David presents the current status of the project and where he hopes to go with it. David Buck is the president of Simberon ( http://simberon.com/ ) - a company that has been providing Smalltalk training and consulting for over 25 years. Along with James Robertson, David produced the Industry Misinterpretations podcast and later the Smalltalk Reflections podcast with Craig Latta. David remains a Smalltalk enthusiast and works to spread the word about Smalltalk. This will be an online meeting from home. If you'd like to join us, please sign up in advance on the meeting's Meetup page ( https://www.meetup.com/ukstug/events/293933993/ ) to receive the meeting details.

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UK Smalltalk User Group meeting - 31 May 2023
by Giovanni Corriga 31 May '23

31 May '23

For our May presentation, Stephane Ducasse will present the vision behind Pharo and how that is been implemented incrementally across multiple releases. In Stef's words: "The vision of Pharo is based on three pillars: - First we want to make sure that Pharo is used to develop complex and robust systems (by complex we means multiple millions lines of code or objects). - Second we want Pharo to be a modular system that can be versatile (Pharo on iot, on large servers, in the web browser….) - Third Pharo should be an evolvable system that can adapt to new needs (modular tools, first class slot, new debuggers, packages…). Sometimes it can be unclear that we follow this vision but over the years we are delivering this vision and we will continue. In this talk I will briefly recall the vision behind Pharo and show the achievements so far. I will show that our development is heavily backed by tests. In the second part of the talk I will focus on the current effort to improve the user interface. I will show that the reimplementation of the Spec UI framework is a cornerstone of the future replacement of Morphic and use of GTK. I will also answer questions about Pharo 11 and Pharo 12." Stephane is an Inria Research Director, currently lead the RMoD team ( http://rmod.lille.inria.fr/ ). Stef is an expert in language design, software quality, program understanding, program visualisations, reengineering and metamodeling. Among his contributions we can list: traits (implemented in Pharo, Perl, PHP and other languages); Moose, an open-source software analysis platform ( http://www.moosetechnology.org/ ). Stef is one of the leaders of Pharo ( http://www.pharo.org/ ), a dynamic reflective object-oriented language supporting live programming, and of the industrial Pharo consortium ( https://consortium.pharo.org/ ). Stef works regularly with companies such as Thales, Wordline, Siemens, Berger-Levrault, Arolla, and others on their software evolution problems. Stef has authored a couple hundred articles ( http://stephane.ducasse.free.fr/Publications.html ) and several books ( http://books.pharo.org/ ). This will be an online meeting from home. If you'd like to join us, please sign up in advance on the meeting's Meetup page ( https://www.meetup.com/ukstug/events/293473947/ ) to receive the meeting details.

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sparc runVMTests
by Valery Ushakov 21 Apr '23

21 Apr '23

runVMTests on sparc (Debug build) fails in a few places. If someone familiar with the internals could point me towards places in the source code to look at to investigate the problems, that would be very helpful. https://paste.sr.ht/~nbuwe/5bdf787b15e8319153370ad1a7f2759010490705 RelWithDbgInfo fails during creation of the world with "must cross stacks" assertion in frame::make_full_frame_on_user_stack() -uwe

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Yoshiki Ohshima - Croquet Microverse - 26 April 2023
by Giovanni Corriga 20 Apr '23

20 Apr '23

For this month's online presentation, Yoshiki Ohshima will demonstrate the Croquet Microverse ( https://croquet.io/ ), which is a 3D collaborative construction environment. It is an incarnation of Smalltalk-based Croquet but instead implemented in JavaScript. Microverse allows a group of users to collaboratively create new objects in a virtual space, and describe their behaviors in the live programming manner that can be used by professional programmers. The object extension mechanism used in the Microverse is heavily influenced by past class and object extension mechanisms, many of which originated from experimentation and implementation in Smalltalk. Likewise, the architecture of the Microverse application framework draws upon other frameworks such as Morphic and AppKit. Yoshiki will explain the connections between those systems and the Microverse. Yoshiki ( https://tinlizzie.org/ohshima/ ) joined Walt Disney Imagineering R&D in 2000 as an intern while attending the graduate school of Tokyo Institute of Technology, and helped develop prototypes of Disney's theme park attractions. He also has been involved in Alan Kay's research group, and participated in the research and development effort of education programming environment Squeak Etoys and later took the leading role. Yoshiki has worked at the Viewpoints Research Institute, SAP Labs CDG, and Y Combinator Research, all of which Dr. Kay founded or helped found. He was awarded his PhD. for designing and implementing a massively parallel particle programming system from Tokyo Institute of Technology. This will be an online meeting from home. If you'd like to join us, please sign up in advance on the meeting's Meetup page ( https://www.meetup.com/ukstug/events/292570084/ ) to receive the meeting details.

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New email list archive
by Russell Allen 14 Apr '23

14 Apr '23

Hi all The nice Squeak people who host our mailing list have refreshed the archive website. If you go to http://lists.selflanguage.org/archives/list/self-interest@lists.selflanguag… then you should be able to see a nice interface to Self emails - going back 33 years to 1990! Cheers Russell

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Voting Results: Time for Chat Event 15/May
by eGroups.com Poll Results 08 Apr '23

08 Apr '23

Here are the results of the vote: 21:01 - 24:00 GMT dru(a)redwoodsoft.com DiegoGomezDeck(a)ConsultAr.com jecel(a)lsi.usp.br germanm(a)crear.com.ar fulrich(a)cvtci.com.ar sma(a)kiel.netsurf.de ----- See the results at http://www.egroups.com/vote?vid=self-interest ------------------------------------------------------------------------ eGroup home: http://www.eGroups.com/group/self-interest http://www.eGroups.com - Simplifying group communications

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Self on SPARC
by Valery Ushakov 07 Apr '23

07 Apr '23

The SPARC port required just a few trivial clean up commits and one straightforward change to support NetBSD ucontext_t (different names) to get built on NetBSD/sparc. Haven't tried GUI yet, but the basic world seems to build. https://github.com/nbuwe/self/commits/feature/netbsd-sparc There is just one serious issue - in the intervening years the SPARC ABI reserved %g7 for system use and it's currently used for thread-local storage block pointer. The default malloc implementation on NetBSD always uses TLS, so it relies on that %g7 not being clobbered. The self compiler uses %g7 for the stack limit (SPLimitReg). I'm currently cheating by using a libc with a different, more simple malloc implementation that doesn't use TLS. The compiler needs to be modified to move SPLimitReg to a different register at the cost of losing one temp, I guess. -uwe

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Self-interest