Squeak-dev March 2009

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134 participants
173 discussions

New Window VM (Closures, FT2Plugin, Large Cursors)
by Andreas Raab 10 Mar '09

10 Mar '09

Folks - Since I was in VM building mode today I figured I might as well make a new Squeak VM. There is some interesting new stuff in it: * Closure support. This VM is based on VMMaker-dtl.116 meaning it includes support for the closure bytecodes. I have verified it by both running a Qwaq image on this VM and and a converted closure image on our Stack VM (this is useful since the Stack VM will die a horrible death something goes wrong in the process). It worked fine both ways which means that I no longer need to switch VMs (yay! ;-) * Experimental large cursor support. Try the following for fun (but don't do it in an image you care about): cursor := Cursor extent: 128@128 depth: 32. cursor offset: -64@-64. cursor getCanvas fillOval: cursor boundingBox color: (Color white alpha: 0.1); frameOval: cursor boundingBox width: 4 color: Color red; line: 62@64 to: 66@64 width: 1 color: Color blue; line: 64@62 to: 64@66 width: 1 color: Color blue. Cursor classPool at: #NormalCursor put: cursor. This changes your normal cursor to be a 128x128 pixels large, translucent cursor. * FT2Plugin. The build includes an external FT2Plugin that has no dependencies on extra DLLs. The downloads are in the usual places: http://squeakvm.org/win32/release/SqueakVM-Win32-3.11.1-bin.zip http://squeakvm.org/win32/release/SqueakVM-Win32-3.11.1-src.zip A closure image (for those interested): http://squeakvm.org/win32/release/Squeak-3.10.2-Closures.zip Note that I consider this an "alpha" version since there is a goodly bit of new and untested stuff in it. I'm in particular interested in finding people to test large cursor support and the FT2Plugin. Feedback is highly welcome. Cheers, - Andreas

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Craig is available for work
by Craig Latta 10 Mar '09

10 Mar '09

Hi-- I'm available for work, my résumé is at http://netjam.org/resume/. thanks, -C -- Craig Latta www.netjam.org next show: 2009-03-13 (www.thishere.org)

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osprocess plugin needed
by Esteban Lorenzano 10 Mar '09

10 Mar '09

Hi, I need a OSProcess plugin for windows, and I don't have the posibility to compile it by my self. Does anybody has one, and want to share it with me? Thanks, Esteban

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Class#category implementation
by Thomas Kowark 10 Mar '09

10 Mar '09

Hi, Today I stumbled upon the implementation of the category method in Class. It performs a lookup to check whether the name stored in the instance variable is still correct. I have performed some tests, changed the category names back and forth, and it always was correct. So what is the purpose of this kind of implementation? When can a category name change without the instance variable being set to the same value? I would be very thankful for any hints. Kind regards, Thomas

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[ANN][Dev-Images] March 2009 versions
by Damien Cassou 10 Mar '09

10 Mar '09

Hi, I've just uploaded new dev and web images based on Squeak3.9.1-7075, Squeak3.10.2-7179 and Pharo0.1-10248. More information and download: http://damiencassou.seasidehosting.st/Smalltalk/squeak-dev Pharo-based images can be downloaded at: http://code.google.com/p/pharo/wiki/Downloads?tm=2 Download statistics at http://damiencassou.dabbledb.com/publish/dev-imagesdownloads Changes in this version: --------------------------- - Pharo images are based on version 10248 - 3.9 based images now also have Polymorph installed - Polymorph fixes (by Gary Chambers) - Performance improvements - More tooltips - Added support in UIManager for new choice dialog with message, backwards compatible with other UIManager subclasses - Fix bugs - Code cleanup - (I can send more details by email to those who are interested) - OmniBrowser changes (by David Röthlisberger) - Integrated Dyanmic Protocols - Moved fixed button panel to the top, next to mercury panel - Improved layout and appearance to comply with Polymorph - Improved performance (caching of class cats in tree) - Columns get focus on mouse over (preference) - Code quality improvings as suggested by SmallLint - Refactorings (eg. moved unneeded features to special package) - Many fixes and corrections - Installer has been divided into subpackages to ease installation and upgrade - Refactorings and Code critics (by Lukas Renggli) - Cleaner menus - Feature to recompile the selected item - A category environment, single class and protocol browsers - Optimize code - Code cleanup - Bug fixed - Added case insensitive refactorings - Improved usability so that names of lint rules can also be read on small screens - Spell-checking code: http://www.lukas-renggli.ch/blog/spell-checker - New rule to detect inconsistent method classifications - Each lint rule is defined in its own class now (instead of one rule per method) - Old lint rules removed Contained packages: ------------------------ This image contains the following packages (some packages are only in the squeak-web image): Aida version 5.6 Algernon version 1.2 AST version 164 AutomaticMethodCategorizer version 0.25 AutomaticMethodCategorizerOB version 0.2 DynamicBindings version 2.7 eCompletion version 0.102 eCompletion-Traits version 0.1 eCompletionOmniBrowser version 0.5 Installer version 4.3 Installer-Core version 4.3.313 Installer-Formats version 4.3.3 Installer-Scripts version 4.3.8 KomHttpServer version 7.0.30 KomServices version 1.12 Magritte-Model version 1.1.331 Magritte-Seaside version 1.1.283 Magritte-Tests version 1.1.148 OB-Enhancements version 0.311 OmniBrowser version 0.442 OmniBrowser-Algernon version 0.5 OmniBrowser-Full version 0.27 OmniBrowser-Morphic version 0.84 OmniBrowser-Refactory version 130 OmniBrowser-Regex version 0.15 OmniBrowser-Standard version 0.400 Pier version current Pier-Blog version 1.1.103 Pier-Documents version 1.1.7 Pier-EditorEnh version 1.1.17 Pier-Model version 1.1.263 Pier-Seaside version 1.1.331 Pier-Security version 1.1.119 Pier-Tests version 1.1.116 Polymorph EventEnhancements version 1.1 Polymorph Geometry version 1.1 Polymorph TaskbarIcons version 1.0 Polymorph ToolBuilder version 1.3 Polymorph Tools Diff version 1.3 Polymorph Widgets version 1.4 Refactoring Core version 40 Refactoring Spelling version 4 RoelTyper version 0.60 RSRSS2 version 2.8.3.11 Scriptaculous version 2.8.3.242 ScriptManager version 0.6 Seaside version 2.8.3.572 Seaside-Adapters-Core version pmm.2.mcz Seaside-Adapters-Swazoo version 9 Seaside-Squeak-Adapters version pmm.3.mcz SeasideAdaptersCompatibility version pmm.1.mcz Shout version 3.15-tween.72 ShoutWorkspace version 1-tween.4 SmaCC runtime version 13 Sport version 2.31 Squeak dev packages version 0.28 Squeak web packages version 0.2 SUnit-improved version 4.0.118 SUnitGUI-improved version 4.0.50 Swazoo version 2.1 Universes version 52 Universes OmniBrowser version 0.38 VBRegex version 1.9 YAXO version 14 -- Damien Cassou http://damiencassou.seasidehosting.st

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[ANN] Preference pragmas
by Andreas Raab 10 Mar '09

10 Mar '09

Folks - I wanted to make the property whether to show individual processes in MessageTally a preference and couldn't recall any of the three gazillion methods to create one ;-) So I decided enough is enough and added the ability to register a preference via Pragma. In other words, you specify two class side accessors (using MessageTally as example): showProcesses "Indicates whether to show each process separately or cumulatively." <preference: 'Show Processes in MessageTally' category: 'debug' balloonHelp: 'If enabled, each profiled process is shown individually in MessageTally' type: #Boolean> ^ShowProcesses showProcesses: aBool "Indicates whether to show each process separately or cumulatively." ShowProcesses := aBool. and then register the preference in the class initialization method via: initialize "MessageTally initialize" "By default, show each process separately" ShowProcesses := true. "Register preferences" Preferences addPreferencesFor: self. The nice thing about this scheme is that the preference is local to the code where it's used and that there are no more generated accessors which mess up Monticello packages etc. What could probably be improved is the self-registration; I left it that way for now since I don't know how expensive it would be to scan all classes for new preferences when one opens a preference browser. There is also an example class PreferenceExample that illustrates the different types of preferences (textual, numeric, color, boolean) you can use. To install, just execute the following from Squeak 3.10.2: Installer mantis fixBug: 7306. Enjoy! - Andreas

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IRCBot dependencies
by Frank Shearar 09 Mar '09

09 Mar '09

Thanks to Ken's summary of IRCBot's progress the other day I thought I'd try it out. What are its dependencies though? Just Aida? (for WebApplication and WebStyle) And what are Aida's dependencies? (I'm told I need class definitions for SpTiimestamp, SwazooServer, HTTPRequest, Site, HTTPException, SpDate). frank

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[Election] Results are in!
by Göran Krampe 09 Mar '09

09 Mar '09

Hi all Squeakers! The Squeak Leadership Team 2009 Election ended 2 hours and 15 minutes ago in fact - promptly at 18.00 UTC. Sorry for the late post on the result, had to get back home first. For this year we had 461 authorized voters, but only 432 ballots were sent out due to bounces. Of the 432 ballots sent 188 voted, that gives us about 43% voting (last year we had 40% voting, 178 votes). But in 2007 we had 45% voting, although fewer authorized voters and fewer voters. So conclusion is that we are growing, although slowly. :) With that bit of boring statistics I bring you the leadership team for the following year starting from NOW. The order reflects the ranking from the election: 1. Andreas Raab 2. Bert Freudenberg 3. Craig Latta 4. Randal L. Schwartz 5. Ken Causey 6. Igor Stasenko 7. Jecel Assumpcao Jr And thus the candidates left out are the following (also in ranked order): 8. Matthew Fulmer 9. Edgar J. De Cleene 10. Brent Pinkney 11. David Mitchell Noteworthy is that Craig, Bert, Randal and Igor thus will serve one more year, with new blood added in the form of Ken, Jecel and Andreas. This also means that we say a BIG THANK YOU to Giovanni Corriga, Edgar J. De Cleene, Dan Ingalls, Tim Rowledge and Yoshiki Ohshima for having served on the leadership team the previous year. Detailed result can be seen at: http://www.cs.cornell.edu/w8/~andru/cgi-perl/civs/results.pl?id=E_f48a814ea… And thank YOU all for voting and all the best to the new team! regards, Göran Krampe, on behalf of the Election Team

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Application deployment in Squeak
by Kevin 09 Mar '09

09 Mar '09

Okay, so my project of the moment is to package a simple game app developed and running in Squeak into a lightweight and easily-distributable runtime. This isn't really a request for help or anything, and might be off topic for the list, (let me know if so) but might be of interest to some. More important to me :-) I might get some feedback that sends me in a better direction. So, if I sound like I need to know something, feel free to hit me with it. (Also, btw, none of this should be seen as criticism; I'm kind of falling in love with Squeak system, and my point here is to try to find ways to spend more of my time doing more of it) Options: - Stripped Squeak image: I've picked up hints of various attempts at this (Dependency- walker type things, and scripts that disable developer tools). Seems that this is a hard problem though, between type-inferencing where variables can take on arbitrary types, and reflection, and dynamic evaluation, and so on. So, for now at least this is kind of a cumbersome and unwieldy way to deal with app deployment. I need to look into the VM generation stuff. There's the whole thing about the Slang subset and C code generation of Smalltalk code, so there's already-existing knowlege and code to build on. Seems like it would be a good fit to go a level higher, and translate a bigger subset of Smalltalk into a higher-level language like C#, or maybe Java or C++. You'd be able to automatically translate a lot more of your Smalltalk codebase, and for the parts where you can't or don't want to (say to avoid bringing along the whole Morphic thing) you'd have a much better fit for plugging in a replacement library. RBParser/RBFormatter So how much of Smalltalk libraries/image could be auto-dumped into C# classdefs? I'm looking at the RBParser/RBFormatter stuff now, and liking it -- nice little Visitor pattern for walking the parse nodes, and really a pretty small set of implementation methods to do the code generation. At a quick look it doesn't look hard to make a C# code generator out of it. UI libraries Anything currently running in squeak is probably going to be doing UI the squeak way -- which seems to mean one of several different, apparently kind of monstrous, packages, the which I haven't even begun to get a good handle on. All that Morphic (for example) stuff might be kind of cool, and might be necessary in a seriously cross-platform environment like Squeak, --but what about something like what Newspeak apparently did? I've only skimmed this so far, but apparently they'd got running to some extent at least a UI system that uses native widgets for speed and simplicity. Their Hopscotch browser shows dynamic switching between Morphic and their native-style UI. So here's what I'd like to do. I think I heard that Newspeak got open-sourced due to lack of funding. So, I'm thinking that if I bring the Newspeak UI stuff into Squeak, and use it as the UI layer to develop in Squeak, I get the benefits of the rapid- prototyping/RAD Smalltalk style, using all the tools available therein. And I get the ability (maybe) to take the resulting Squeak application code, run an auto-translator on it to generate for example C# or Java versions of the application-specific classes, and link that code against a (so far non-existing) library that mimics the Newspeak UI classes. Anybody got thoughts on all this, or 'already been solved' kinds of comments? --A little bit of experimenting around in VW and in Dolphin Smalltalks shows that they at least have some kind of auto-deployment, at least for Windows. Am I missing the Squeak version of that, or am I right in thinking it's something that needs to be done? Kevin Kelley kelleysoft.com <http://kelleysoft.com/>

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What's the problem people? :)
by Göran Krampe 09 Mar '09

09 Mar '09

Hi Pharaos (and Squeak-dev)! :) Alert to Pharaos: This is a cross post! (hehe) I just wanted to say (for whatever that is worth) that I like Pharo. And I like Squeak.org. And I like everyone doing stuff in/for/on Squeak/Pharo/Smalltalk/Huemul whatever. I have Pharo on my disk. I just started playing in it for a toy project involving RB AST, RoelTyper etc. But I do all Gjallar work on 3.10.2/LPF right now, it takes time moving a large project to a different baseline, so Gjallar will probably be on 3.10.2 for a while. But nothing prevents us from testing out Pharo later on - whatever works the best I say. Gjallar is also 95% ported to GS these days. I agree with Keith/Matthew that making good tools that can *span* different forks/communities *must* be a good thing for us all to have. All tools don't need to be spanning, but it doesn't hurt if *some* are - right? I *also* agree with Pharo people that hey, Pharo is a fork - we/you can do whatever we/you like! And that is good - it's the strength of Pharo. If Pharo diverts too much in "base stuff" it might turn into a weakness - but we just don't know these things, it is still to be seen. It is all about balance, benefits, etc. And we don't need to get angry with each other do we? :) Trust me, it just burns your energy! I have code that seems to be doing fine in Pharo - SocketStream comes to mind. I know Pharo seem to be more inclined to use Universes than SM - fine with me, no problem. I hope to move SM forward in some way, and I hope it can still be loaded/used from within Pharo - even if it gets thrown out soon (I think I read something about that). I also intend to use both Pharo, Squeak or whatever works best for my different tasks. And finally I hope to revive DeltaStreams and make that work in Pharo as well as most other Squeak flavors. We are all Squeakers, right? :) regards, Göran PS. I am not sure why I am so damn cheerful, perhaps it is the SURGE I seem to feel in the Squeak community - so many things going on all over the place... ;)

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