Squeak-dev December 2010

squeak-dev@lists.squeakfoundation.org

95 participants
379 discussions

Submitting fixes based on out-of-date packages
by Sean P. DeNigris 04 Dec '10

04 Dec '10

I'm using 4.1 and made a fix. Usually, I would save it to a local repository, merge it in a trunk image, and then upload it to the inbox. But I'm often in the middle of something and not willing to do this. Does it work if I just upload the version based on 4.1 to the inbox? Would it help much if I check the changes between my fixed package and the trunk version, and make sure there are no conflicts? Thanks. Sean -- View this message in context: http://forum.world.st/Submitting-fixes-based-on-out-of-date-packages-tp3071… Sent from the Squeak - Dev mailing list archive at Nabble.com.

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[ANN] MathMorphs old code and book rescued
by Edgar J. De Cleene 04 Dec '10

04 Dec '10

http://wiki.squeak.org/squeak/6050 Here you have in the last part the code and the old rescued book. Works in almost any Squeak, tested in trunk 10732. Comes to us as I working on the revamp version of FunSqueak for Christmas present from me to all good boys and girls around the world, so made a new visit to dungeons and found it. Again , gracias Leandro , Valeria, all in Buenos Aires for doing this in 1998. Edgar

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Daily Commit Log
by commits＠source.squeak.org 03 Dec '10

03 Dec '10

Changes to Trunk (http://source.squeak.org/trunk.html) in the last 24 hours: http://lists.squeakfoundation.org/pipermail/packages/2010-December/003966.h… Name: Help-Squeak-TerseGuide-dtl.1 Ancestors: TerseGuideHelp contains the Squeak terse guide by Chris Rathman (http://www.angelfire.com/tx4/cus/notes/smalltalk.html), maintained on the swiki at http://wiki.squeak.org/squeak/5699. Copyrights and credit for the original document belong to Chris Rathman. The original document was formatted for printing with a fixed font. Here it is reformatted for display in a help browser, with various updates and corrections to match the current state of the Squeak image. The contents of the help pages may be evaluated as workspace expressions. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-December/003967.h… Name: Help-Squeak-TerseGuide-dtl.2 Ancestors: Help-Squeak-TerseGuide-dtl.1 Add Juan's factorial example to illustrate variable scoping for block closures ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-December/003968.h… Name: Morphic-mha.479 Ancestors: Morphic-cmm.478 reorganised help menu: * removed terse guide from welcome workspaces * added entry for HelpBrowser version of terse guide =============================================

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resolved - cannot do 'Update Squeak' from latest trunk image
by Ken G. Brown 02 Dec '10

02 Dec '10

For sometime I have been unable to do 'Update Squeak' from the latest trunk image on Mac, no matter which VM I was running on. I had not been able to devote any time to the problem until now and I reported the issue: <http://bugs.squeak.org/view.php?id=7574>. The problem turns out to have been caused by an incorrect SqueakV41.sources file. By luck while looking at where Syntax Error might be generated in order to place a self halt for further debugging, I got a warning saying that my SqueakV41.sources file was missing something, and suggested making sure it was treated as a binary file for initially expanding. I re-downloaded a new ftp://ftp.squeak.org/SqueakV41.sources.gz, expanded it normally and did a diff between what I had from a previous download and the newly expanded one. They were significantly different. Somewhere along the line I had downloaded the SqueakV41.sources file and had been treating it as the master on my system. Alas, there have been more than one version of SqueakV41.sources available for download with exactly the same name and the previously downloaded one did not allow for Update Squeak to work. Using the newly downloaded SqueakV41.sources allowed the Update Squeak to proceed normally. This bug should be set to 'Resolved'. I am mentioning this here in order to potentially save someone else some grief. Care needs to taken that more than one version of the SqueakV41.sources are not floating around causing weird things to occur. Ken G. Brown

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[ANN] Swazoo has now WebSocket support
by Janko Mivšek 02 Dec '10

02 Dec '10

Dear Smalltalkers, Past few days I worked on WebSocket implementation in Swazoo Smalltalk web server [1], in coordination with Philippe Marschall from Seaside [4] and Nicolas Petton from Iliad [5] devteams, so together with me from Aida/Web [3] our cooperation ensures that this implementation is ready to be adapted for all three main web frameworks. Why WebSocket? Because it will replace current Comet hacks to enable a bidirectional messaging between browser and web application, specially for web app to send something back to the browser without waiting for user to click something. Read a bit more about WebSocket here: http://dev.opera.com/articles/view/introducing-web-sockets/ WebSocket as browser supported technology enables opening an always present channel, so that web app can send commands like update some element of the webpage at any time. That's why WebSocket is ideal for so called "real-time" web. You are invited to look at the code for Squeak/Pharo as Swazoo2.3beta1.1 at http://www.squeaksource.org/Swazoo.html A bit more about WebSocket in Swazoo: http://www.swazoo.org/websocket Best regards Janko Swazoo maintainer [1] Swazoo WebSocket support http://www.swazoo.org/websocket [2] Introducing WebSockets http://dev.opera.com/articles/view/introducing-web-sockets/ [3] Aida/Web http://www.aidaweb.si [4] Seaside http://www.seaside.st [5] Iliad http://www.iliadproject.org

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Debugger bug: disappearing contents
by Frank Shearar 02 Dec '10

02 Dec '10

Hi, I've been chasing down a strange bug these past few days: http://bugs.squeak.org/view.php?id=7569 The executive summary is this: when viewing a method in the debugger that refers to an instvar deleted after the Debugger instantiated, the CodePane shows the correct source for a fraction of a second, and then goes blank. What I'd expected to see was the source of the method rendered as per usual, and the reference to the missing instvar coloured red, to indicate a problem. (Just like what you'd see if you opened up a Browser on the method.) The CodePane goes blank because the Debugger's contents instvar is nilled out. CodeHolder>>setContentsToForceRefresh nils the instvar because CodeHolder>>didCodeChangeElsewhere returns true. That method returns true because the Debugger's currentCompiledMethod instvar and the compiled method according to "aClass compiledMethodAt: aSelector" aren't the same object. And now I'm a bit stuck. I know the behaviour I'd expect, I know why the bug's happening, but how do I fix it? Does CodeHolder (or Debugger) need a better way of knowing whether the viewed method's changed? (For instance, comparing the two CompiledMethods' asCommaString shows identical contents.) frank

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The Inbox: Tools-fbs.284.mcz
by commits＠source.squeak.org 02 Dec '10

02 Dec '10

A new version of Tools was added to project The Inbox: http://source.squeak.org/inbox/Tools-fbs.284.mcz ==================== Summary ==================== Name: Tools-fbs.284 Author: fbs Time: 2 December 2010, 5:42:26.979 pm UUID: 13b11c52-520e-b94a-83a4-a182cd1f2383 Ancestors: Tools-ul.282 When a method changes out from under your feet in the Debugger (e.g., you remove an instvar triggering a recompile of a method through which you've stepped), the Debugger blanks out contents. In the UI, this manifests as a blank code pane. This change resets the contents ivar by setting it to the new, recompiled, CompiledMethod as a side effect of calling self selectedMessage. This version is Eliot Miranda's improved version of my (fbs) initial submission. =============== Diff against Tools-ul.282 =============== Item was changed: ----- Method: Debugger>>contents (in category 'accessing') ----- contents "Depending on the current selection, different information is retrieved. Answer a string description of that information. This information is the method in the currently selected context." + ^contents ifNil: + [self selectedContext + ifNotNil: [self selectedMessage] + ifNil: [String new]] ! - contents == nil ifTrue: [^ String new]. - ^ contents copy!

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[ANN] New Smalltalk VM Beginners mailing list
by Mariano Martinez Peck 02 Dec '10

02 Dec '10

Hi everybody. We want to announce that we've created a mailing list called "Smalltalk VM Beginners" where all the people interested in VM can share knowledge. The aim of this mailing list is create a good and positive energy and spread the knowledge around the Squeak VM. If you always wanted to know something on the VM but never dare to ask, join the mailing-list, may be we will not know it but we will try hard to learn it together. The idea is that we can help each other, welcome people to learn about the VM, and increase and share the knowledge about it in the community. Everybody can ask questions, everybody can help. This mailing list has more or less the same idea of pharo-users or squeak-beginners. Now, to clarify the objectives of the mailing list, we propose some requirements: - Be polite, respectful. - No question is stupid and all questions are welcome. We welcome the most basic questions someone can ask about the VM like, "is it written in C?" "How can I download the code?" - This mailing list should be useful for people that are just interested in knowing a little about the VM, to those who want to know how certain things are done, and specially for those that are learning about the VM because they need to extend or modify it. - If you have a heavy question, you will probably not get the answer in this mailing-list but this is not a problem you can ask in the Squeak VM mailing list. - The idea is that we can help each other. So, the link to the mailing list is: http://lists.squeakfoundation.org/mailman/listinfo/vm-beginners Address: vm-beginners(a)lists.squeakfoundation.org. Cheers

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The Trunk: Morphic-mha.479.mcz
by commits＠source.squeak.org 02 Dec '10

02 Dec '10

Michael Haupt uploaded a new version of Morphic to project The Trunk: http://source.squeak.org/trunk/Morphic-mha.479.mcz ==================== Summary ==================== Name: Morphic-mha.479 Author: mha Time: 2 December 2010, 10:59:00.13 am UUID: 7118fdf5-bf71-4cc9-b11d-a4284515f94a Ancestors: Morphic-cmm.478 reorganised help menu: * removed terse guide from welcome workspaces * added entry for HelpBrowser version of terse guide =============== Diff against Morphic-cmm.478 =============== Item was changed: ----- Method: TheWorldMainDockingBar>>helpMenuOn: (in category 'submenu - help') ----- helpMenuOn: aDockingBar aDockingBar addItem: [ :it | it contents: 'Help' translated; addSubMenu: [ :menu | 'Todo'. menu addItem:[:item| item contents: 'Online Resources' translated; help: 'Online resources for Squeak' translated; target: self; icon: MenuIcons smallHelpIcon; selector: #showWelcomeText:label:in:; arguments: { #squeakOnlineResources. 'Squeak Online Resources'. (140@140 extent: 560@360) }]. menu addItem:[:item| item contents: 'Keyboard Shortcuts' translated; help: 'Keyboard bindings used in Squeak' translated; target: Utilities; selector: #openCommandKeyHelp ]. menu addItem:[:item| item contents: 'Font Size Summary' translated; help: 'Font size summary from the old Squeak 3.10.2 help menu.' translated; target: TextStyle; selector: #fontSizeSummary ]. menu addItem:[:item| item contents: 'Useful Expressions' translated; help: 'Useful expressions from the old Squeak 3.10.2 help menu.' translated; target: Utilities; selector: #openStandardWorkspace ]. menu addLine. menu addItem:[:item| item contents: 'Extending the system' translated; help: 'Includes code snippets to evaluate for extending the system' translated; target: self; icon: MenuIcons smallHelpIcon; selector: #showWelcomeText:label:in:; arguments: { #extendingTheSystem. 'How to extend the system'. (140@140 extent: 560@360) }]. menu addLine. menu addItem:[:item| item contents: 'Welcome Workspaces' translated; help: 'The Welcome Workspaces' translated; addSubMenu:[:submenu| self welcomeWorkspacesOn: submenu]]. (Smalltalk classNamed: #HelpBrowser) ifNotNil: [:classHelpBrowser| menu addLine. menu addItem: [ :item | item + contents: 'Terse Guide to Squeak' translated; + help: 'concise information about language and environment' translated; + target: classHelpBrowser; + selector: #openOn:; + arguments: { TerseGuideHelp } ]. + menu addLine. + menu addItem: [ :item | + item contents: 'Help Browser' translated; help: 'Integrated Help System' translated; target: classHelpBrowser; selector: #open ] ]. ]].! Item was removed: - ----- Method: TheWorldMainDockingBar>>terseGuideToSqueak (in category 'submenu - help') ----- (excessive size, no diff calculated) Item was changed: ----- Method: TheWorldMainDockingBar>>welcomeWorkspacesOn: (in category 'submenu - help') ----- welcomeWorkspacesOn: menu menu addItem:[:item| item contents: 'Welcome to Squeak 4.2' translated; help: 'A Welcome Workspace' translated; target: self; selector: #showWelcomeText:label:in:; arguments: { #welcomeToSqueak42. 'Welcome to Squeak 4.2'. (140@140 extent: 500@300) }]. menu addItem:[:item| item contents: 'The Squeak User Interface' translated; help: 'A Welcome Workspace' translated; target: self; selector: #showWelcomeText:label:in:; arguments: { #squeakUserInterface. 'The Squeak User Interface'. (160@160 extent: 500@300) }]. menu addItem:[:item| item contents: 'Working With Squeak' translated; help: 'A Welcome Workspace' translated; target: self; selector: #showWelcomeText:label:in:; arguments: { #workingWithSqueak. 'Working With Squeak'. (180@180 extent: 500@300) }]. menu addItem:[:item| item - contents: 'Terse Guide to Squeak' translated; - help: 'A Welcome Workspace' translated; - target: self; - selector: #showWelcomeText:label:in:; - arguments: { - #terseGuideToSqueak. - 'Terse Guide to Squeak'. - (180@180 extent: 600@400) - }]. - menu addItem:[:item| - item contents: 'License Information' translated; help: 'A Welcome Workspace' translated; target: self; selector: #showWelcomeText:label:in:; arguments: { #licenseInformation. 'License Information'. (200@200 extent: 500@300) }].!

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[Informal Report] Building the next FunSqueak using Cog
by Edgar J. De Cleene 02 Dec '10

02 Dec '10

Hello friends of odd projects ! I trying to carry Olympic flame lit on Concepción del Uruguay on Smalltalks 2010. Being old a and with little strength..... In http://lists.squeakfoundation.org/pipermail/squeak-dev/2010-September/153050 .html share the first of this reports and have a page on http://wiki.squeak.org/squeak/6159. Ken Brown contact me via Skype, sorry the time difference but he should found the response when connect. Seems some have troubles with updating the trunk, but not me. Yes with FunSqueak4.2Cog, but it have lots of different projects into , so no surprise. A couple of days ago I start rebuilding again , and could say load nicely muO.257.sar (thanks Stephanne). Also in a separate fresh 10572 loads Morphic UI Designer. The news is .pr now seems to load. The FIND button of golden navigator still have troubles, but here i attach a solution. Please some guy review and put into trunk, see original mail. As usual, you could argue me, chat on IRC or face to face on Skype as edgardec. I stay connected when weather let¹s me, Austral Summer is coming with plus 32 ºC in advance... Edgar

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