Squeak-dev April 2011

squeak-dev@lists.squeakfoundation.org

80 participants
387 discussions

Testing Seaside in Squeak4.3alpha-11321
by Hannes Hirzel 03 Jun '11

03 Jun '11

Hi As Enrico mentioned that Pier does not load anymore in Squeak I did a test if Seaside loads and runs. I could load Seaside into Squeak4.3-11321 (as of today) with the script taken from 'Extending the System' "Seaside 3.0 http://www.seaside.st" (Installer ss project: 'MetacelloRepository') install: 'ConfigurationOfSeaside30'. (Smalltalk at: #ConfigurationOfSeaside30) load. (Smalltalk at: #WAPharoServerAdaptorBrowser) open. I run all the test of the category Seaside-Tests 834 of 834 run and passed However I cannot start an adaptor menu 'Apps' / 'Seaside control panel' add 'Adaptor' , e.g. WAComanceAdaptor clicking on the 'start' button has no effect. The feedback still says 'stopped' Any suggestions how to proceed? Thank you for the answer in advance --Hannes

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www.squeak.org has yet to refer to the 4.2 release
by Eliot Miranda 16 May '11

16 May '11

Google Squeak 4.2. Top three hits: Search Results 1. *Squeak 4.2* <http://wiki.squeak.org/squeak/6160> *Squeak 4.2*. Last updated at 4:29 pm UTC on 27 December 2010 *...* Want to see if this can be phased out as of the 4.2 release in lieu of the new Stack *...* wiki.*squeak*.org/*squeak*/6160 - Cached<http://webcache.googleusercontent.com/search?q=cache:4kVBFXJoVn0J:wiki.sque…> ► 2. *Squeak* Smalltalk <http://www.squeak.org/> Feb 3, 2011 *...* *Squeak 4.2* has been released after nine months in * ...* www.*squeak*.org/ - Cached<http://webcache.googleusercontent.com/search?q=cache:DnfJBjhFCxwJ:www.squea…> - Similar<http://www.google.com/search?hl=en&safe=off&client=safari&rls=en&q=related:…> *Squeak 4.2* final now out! « The Weekly Squeak<http://news.squeak.org/2011/02/03/squeak-4-2-final-now-out/> Feb 3, 2011 *...* See Help > Welcome Workspaces > Welcome to *Squeak 4.2* for *...* news.*squeak*.org/2011/02/03/*squeak*-4-2-final-now-out/ - Cached<http://webcache.googleusercontent.com/search?q=cache:qSyOptYkJMkJ:news.sque…> Follow the first one. There is no download link on the 4.2 release page that I can see. This page is out of date, still referring to "release time sometin=me in January". Click the "top" link to get to http://wiki.squeak.org/squeak. The obvious link to click is "Downloading Squeak <http://wiki.squeak.org/squeak/388>". The top link http://ftp.squeak.org/current_stable/ takes us to a 4.1 download. The rest of the page talks about 3.10, 3.9 and earlier. I would update these pages but I don't know /where/ the 4.2 release is, because... of the above. best Eliot

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The future of BlockContext
by Levente Uzonyi 02 May '11

02 May '11

Hi, since the early days of the developement of Squeak 4.1 (3.11 back then) BlockContext was replaced by BlockClosure. I guess it's time to remove it from the system and merge ContextPart and MethodContext to Context as it was originally planned. Any objections? Cheers, Levente

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Changing an object's class
by Frank Shearar 02 May '11

02 May '11

Hi, I've been playing around with immutable data structures (at least, as immutable as one gets). I came across an interesting algorithm for rebalancing a binary tree, invented by Day, Stout and Warren. It's an in-place pointer-swizzler that, with constant additional space, rebalances a tree in linear time. Of course, it operates on a mutable structure. So I had an idea: I could "ringfence" the mutation: from my immutable structure, create a mutable copy, tear it to bits and then recreate a new, immutable, balanced, tree. So I wrote, in addition to my ZTree node class, a MutableZTree subclass. It has the same shape as its parent (no new instvars), and a bunch of extra mutating methods. There are some costs involved in this, of course: I create two entire copies of the tree. One, making the mutable copy, seems unavoidable: you cannot simply un-immutable the tree, because you have no idea what other objects might have a reference to parts of the tree, and they all assume the tree's immutable. The other, however... well, we don't care about references to the mutable structure because there should be no references to it. It's purely an internal, interim structure. So I thought, well, wouldn't it be nice if one could _change the class_ of the MutableZTrees so they all magically turn into nice immutable ZTrees. I'm sure there's some trickery one could do, but quite what that trickery would be, I'm not sure. Any ideas? (Or, just as importantly, good reasons why the above is completely insane?) It would be nice to turn the O(3n) space requirement into O(2n)... frank

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Morphic Performance Graphs
by Ben Coman 01 May '11

01 May '11

hi all, Last month as an introduction to Squeak I did some performance testing for the creation of morphs, and a comparison between derivatives of Squeak. An advance copy of one of the graphs was posted previously, but I have since updated the graphs and discussion based on feedback at that time. I was going to tweak them some more but have been distracted by other priorities, and so I thought I would just post them now. I hope they are of some interest. I'll look at updating the graphs later, unless someone beats me too it in the comments. http://blog.openinworld.com/2011/03/morphic-performance/ http://blog.openinworld.com/2011/03/morphic-flavour-performance/ http://blog.openinworld.com/2011/04/performance-testing-spreadsheet/ Its my first go at a blog (I hear all the cool kids are doin' it) - so any and all feedback on style and content is welcome. Cheers, Ben

8 25

Daily Commit Log
by commits＠source.squeak.org 30 Apr '11

30 Apr '11

Changes to Trunk (http://source.squeak.org/trunk.html) in the last 24 hours: http://lists.squeakfoundation.org/pipermail/packages/2011-April/004633.html Name: HelpSystem-Core-ul.55 Ancestors: HelpSystem-Core-tbn.54 - avoid possible speed degradation for large APIs - minor refactoring for cleaner and faster code ============================================= http://lists.squeakfoundation.org/pipermail/packages/2011-April/004634.html Name: Kernel-ul.576 Ancestors: Kernel-ul.574 - documented the issues with Behavior >> #commentsIn: - remove SortedCollection (mis)usage from #allSubclassesWithLevelDo:startingLevel: ============================================= http://lists.squeakfoundation.org/pipermail/packages/2011-April/004635.html Name: Collections-ul.440 Ancestors: Collections-kb.439 - ignore the leadingChar for unique characters in Character class >> #leadingChar:code: - fixed the copying of Characters ============================================= http://lists.squeakfoundation.org/pipermail/packages/2011-April/004636.html Name: Multilingual-ul.141 Ancestors: Multilingual-nice.140 Removed #leadingChar and it's usage from ByteTextConverter and it's subclasses. Only CJKV characters should have leadingChar. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2011-April/004637.html Name: Kernel-ul.575 Ancestors: Kernel-ul.574 - removed support for BlockContexts from ContextPart >> #copyTo: - added a new method #copyTo:bottomContextDo: which provides access to the bottom context during copying ============================================= http://lists.squeakfoundation.org/pipermail/packages/2011-April/004638.html Name: Kernel-ul.577 Ancestors: Kernel-ul.576, Kernel-ul.575 Merged. =============================================

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Re: [squeak-dev] Fridge morph
by Gary Dunn 30 Apr '11

30 Apr '11

Ah! Perhaps that explains why the first one created a new project while subsequent invocations on other systems gave the unknown server error. Gary Dunn Open Slate Project http://openslate.org On Apr 30, 2011 6:20 AM, "Bert Freudenberg" <bert(a)freudenbergs.de> wrote: On 30.04.2011, at 02:43, Gary Dunn wrote: > Can somebody give me a rough idea what the fridge morph... Its descriptionForPartsBin says it is 'A tool for sending objects to other Squeak users'. I'm not really sure how it works, but from reading the code it appears to create a project named "Fridge" on each machine, and if someone adds an object to it, it appears on all the other machines. - Bert -

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bug report: Nebraska telemorphic times out
by Gary Dunn 30 Apr '11

30 Apr '11

Two things 1. New Mantis bug report, telemorphic times out without waiting 45 seconds. #7627 The issue is that the connect fails immediately, without waiting. 2. I have "resolved" #7625, "Nebraska badge always displays local name." This is by design. The way to create badges for other people is given in the comments for the EToySenderMorph. -- Gary Dunn Honolulu

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Fridge morph
by Gary Dunn 30 Apr '11

30 Apr '11

Can somebody give me a rough idea what the fridge morph does? I googled for an explanation and found nothing better than this: http://wiki.squeak.org/squeak/5004 On Win7 I drop one on the world and click on it and a new project window opens with a big welcome message hiding under the new docking bar. But since then clicking on one gives a message "Current project does not know a server either." I began looking at the class but so far remain as clueless as ever. -- Gary Dunn Honolulu

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Netiquette - blog / mail list interaction
by Ben Coman 30 Apr '11

30 Apr '11

So I've got my fandangled new blog at blog.openInWorld.com. The discussion associated with the articles is nice, but I notice a disconnect in discussion with part discussion occurring here in the mail list and part discussion occurring on the blog. I don't expect anyone to repetitively go to the blog just to check for follow up comments, so what I would like to do is forward blog comments to the mail list (for the interactivity) and pull related mail list comments into the blog (keeping the history together). I have some ideas on how to do it, however what is the list policy on something like that?

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