Squeak-dev September 2010

squeak-dev@lists.squeakfoundation.org

110 participants
401 discussions

WeakSet but no WeakIdentitySet?
by Igor Stasenko 25 Aug '23

25 Aug '23

Hello, i need to keep a bunch of CompiledMethods in WeakSet, but i am a bit afraid, that it wont work as i want to, because of CompiledMethod>>= implementation, because a code, which i currently writing doesn't changing a method's bytecode, but changing its trailer instead, and so, this could lead to undesirable effects.. If i could have a WeakIdentitySet... Meanwhile, i think i have nothing else, but just use a degenerate WeakIdentityKeyDictionary , with methods in keys and nils in values. :( -- Best regards, Igor Stasenko AKA sig.

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veryDeepCopy, ImageSegments, and actionMaps
by Ned Konz 17 Aug '23

17 Aug '23

Any Object can have dependents whether or not it has an instance variable to keep track of them (these are kept in the DependentsFields class variable of Object). The only class that keeps its own dependents is Model. Any Object can have an actionMap. These are supplied by EventManager class by default, and are stored in the ActionMaps class variable of EventManager. The only class that keeps its own action maps is Morph. When we veryDeepCopy an object we also copy the global dependents (see DeepCopier>>fixDependents). However, we don't copy the actionMap in those cases where it's held by the EventManager class. When we file out an object that uses DependentsFields out into an ImageSegment, we also file out the dependents (see ImageSegment>>dependentsSave:) if it's in a project. We do this by adding a project parameter called #GlobalDependentsInProject. However, we don't file out the actionMap in those cases where it's held by the EventManager class. My question is this: should we fix these behaviors (copying and serialization) to include these "global action maps" just like we already include the "global dependents"? Or should we discourage the use of the "global action maps"? -- Ned Konz http://bike-nomad.com GPG key ID: BEEA7EFE

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find original change set
by Javier Orsaria 09 Mar '21

09 Mar '21

Hi, I was trying to use, in VersionsBrowser, the feature "find original change set" for a method. In old versions (3.8 and earlier) this work fine. But in 3.10 and 3.9 don´t. I followed the sequence and detect the problem at MethodChangeRecord-noteNewMethod: noteNewMethod: newMethod "NEVER do this. It is evil." currentMethod _ nil. should be: noteNewMethod: newMethod "NEVER do this. It is evil." currentMethod _ newMethod. This way work as I expect. But with that comment I understand was intentioned. What is the problem with this? I can´t see it... I'm the devil? Thanks, Javier

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app in app
by Chuck Smith 31 Jan '18

31 Jan '18

Dear Squeakers, I have always had a hard time learning anything until I had a project to do it around. Well that time has come. I need to write an app. that will let me run one application inside another. I would like to have a cad type app. running in a window and then be able to over lay that cad app. with another app. that lets me put hot spots on the cad app. These hot spots will have the ability to show a colored outline around their perimeter. That outline we would like to be able to turn on and off or make blink. The purpose of the hot spot is to train people how to use the cad app. by showing them where to pick menu items and enter data etc. So the whole things runs like this, we start the cad app. and the tutor app. The tutor app. step by step shows the student where and what bottoms to pic and where and what data to enter. As they enter etc. the app. actually functions and they are able to create in the cad app. Kind of a training wheel effect. Can any one tell whether or not I could do this in Squeak and kind of help me do it. I do have a nephew who is a good programmer but has never used Squeak of small Talk and I would like to get him help me do this app. start using Squeak. Can any one point in the right direction? I would like to do the same thing for learning Squeak. Once we learn how to do it for the cad app. I will do it for the Squeak community and make it free. Sincerely, Chuck Smith

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Re: [squeak-dev] The Inbox: Collections-topa.366.mcz
by Tobias Pape 22 Jan '13

22 Jan '13

Hi, this little method may save some time if you need to generate readable method selectors frequently. Any objections against trunk inclusion? So Long, -Tobias Am 2010-06-16 um 13:34 schrieb commits(a)source.squeak.org: > > ==================== Summary ==================== > > Name: Collections-topa.366 > Author: topa > Time: 16 June 2010, 3:34:47.932 pm > UUID: 5491e7f9-bcc4-423a-a267-8853ca2eb9a3 > Ancestors: Collections-ul.365 > > Provide #asCamelCase for Strings. > May be usefull for natural language conversation or the like. >

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[ANN] Updated FunSqueakCog4.2-10549-alpha.8.zip
by Edgar J. De Cleene 24 Sep '12

24 Sep '12

You could found it in http://ftp.squeak.org/Experiments/FunSqueakCog4.2-10549-alpha.8.zip List of packages as doing PackageOrganizer default packageNames saveOnFile for fresh Squeak4.2-10548-alpha, importing the .obj into Fun and doing the difference with PackageOrganizer default packageNames on it ('AST-Core' 'AST-Semantic' 'Aida' 'Alien-VMMaker-Plugins' 'Balloon3D-Constants' 'Balloon3D-Plugins' 'BroomMorphs-Base' 'BroomMorphs-Connectors' 'CGPrereqs' 'Comet-Core' 'Comet-Examples' 'Comet-Pharo-Core' 'Comet-Tests-Core' 'ConfigurationOfAida' 'ConfigurationOfGofer' 'ConfigurationOfGrease' 'ConfigurationOfKomHttpServer' 'ConfigurationOfMagritte2' 'ConfigurationOfMetacello' 'ConfigurationOfOmniBrowser' 'ConfigurationOfPier2' 'ConfigurationOfPierAddOns2' 'ConfigurationOfSPort2' 'ConfigurationOfSeaside30' 'ConfigurationOfSwazoo2' 'ConfigurationOfXMLSupport' 'Connectors' 'ConnectorsBasicDistro' 'ConnectorsDemo' 'ConnectorsGraphLayout' 'ConnectorsShapes' 'ConnectorsText' 'ConnectorsTools' 'ConsCell' 'Continuation' 'DynamicBindings' 'ECompletion' 'Environments' 'FFI-Kernel' 'FFI-Pools' 'FSM' 'FreeType' 'Freetype-Plugin' 'FunctionalTalk' 'Functions' 'Gofer-Core' 'Grease-Core' 'Grease-Pharo-Core' 'Grease-Tests-Core' 'Grease-Tests-Pharo-Core' 'HTML' 'InstanceEncoder' 'JQuery-Core' 'JQuery-Tests-Core' 'JQuery-Tests-UI' 'JQuery-UI' 'Javascript-Core' 'Javascript-Pharo-Core' 'Javascript-Tests-Core' 'Javascript-Tests-Pharo-Core' 'KomHttpServer' 'KomServices' 'Magritte-Model' 'Magritte-Morph' 'Magritte-Pharo-Model' 'Magritte-Pharo-Seaside' 'Magritte-Seaside' 'MemoryAccess' 'Metacello-Core' 'Metacello-MC' 'Metacello-Platform' 'MorphicGames' 'MorphicPuzzle' 'MorphicWrappers' 'MuO' 'MuO39' 'Network-IRC' 'OB-Morphic' 'OB-Refactory' 'OB-Regex' 'OB-SUnitIntegration' 'OB-Shout' 'OMeta2-Postload' 'OMeta2-Preload' 'OSC' 'OSProcess' 'Ocompletion' 'OmniBrowser' 'People' 'Pier-Blog' 'Pier-Book' 'Pier-Documents' 'Pier-EditorEnh' 'Pier-Google' 'Pier-LinkChecker' 'Pier-Model' 'Pier-Pharo-Model' 'Pier-Pharo-Persistency' 'Pier-Pharo-Seaside' 'Pier-Seaside' 'Pier-Security' 'Pier-Setup' 'PluggableMemory' 'ProcessProperties' 'Prolog' 'Prototype-Core' 'Prototype-Tests-Core' 'REPLMorph' 'RSS-Core' 'RSS-Examples' 'RSS-Tests-Core' 'Refactoring-Core' 'Refactoring-Spelling' 'Regex' 'RoelTyper' 'Scriptaculous-Components' 'Scriptaculous-Core' 'Scriptaculous-Tests-Components' 'Scriptaculous-Tests-Core' 'Seaside-Adaptors-Comanche' 'Seaside-Adaptors-Swazoo' 'Seaside-Canvas' 'Seaside-Component' 'Seaside-Core' 'Seaside-Development' 'Seaside-Email' 'Seaside-Environment' 'Seaside-Examples' 'Seaside-FileSystem' 'Seaside-Flow' 'Seaside-HTML5' 'Seaside-InternetExplorer' 'Seaside-Pharo-Canvas' 'Seaside-Pharo-Continuation' 'Seaside-Pharo-Core' 'Seaside-Pharo-Development' 'Seaside-Pharo-Email' 'Seaside-Pharo-Environment' 'Seaside-Pharo-Flow' 'Seaside-Pharo-Tools-OmniBrowser' 'Seaside-Pharo-Tools-Web' 'Seaside-RenderLoop' 'Seaside-Session' 'Seaside-Swazoo' 'Seaside-Tests-Adaptors-Comanche' 'Seaside-Tests-Canvas' 'Seaside-Tests-Component' 'Seaside-Tests-Core' 'Seaside-Tests-Development' 'Seaside-Tests-Email' 'Seaside-Tests-Environment' 'Seaside-Tests-Examples' 'Seaside-Tests-FileSystem' 'Seaside-Tests-Flow' 'Seaside-Tests-Functional' 'Seaside-Tests-HTML5' 'Seaside-Tests-InternetExplorer' 'Seaside-Tests-Pharo-Continuation' 'Seaside-Tests-Pharo-Core' 'Seaside-Tests-Pharo-Development' 'Seaside-Tests-Pharo-Functional' 'Seaside-Tests-RenderLoop' 'Seaside-Tests-Session' 'Seaside-Tests-Tools-Web' 'Seaside-Tests-UTF8' 'Seaside-Tools-Core' 'Seaside-Tools-OmniBrowser' 'Seaside-Tools-Web' 'Seaside-Welcome' 'Seaside-Widgets' 'Services' 'SharedPool-Speech' 'Shout' 'ShoutWorkspace' 'SlangBrowser' 'SplitJoin' 'Sport' 'Star functions' 'StringFormat' 'Swazoo' 'TestBrowser' 'VB-Regex' 'VMConstruction-Plugins-AioPlugin' 'VMConstruction-Plugins-OSProcessPlugin' 'VMConstruction-Plugins-XDisplayControlPlugin' 'VMMaker'). I start a page on trying to write all I made http://wiki.squeak.org/squeak/6159 Remember, the image is created and saved with John Cog Vm, I have working on Mac and Vista until now, no luck with Ubuntu, but sure my fault. I must to do some quick dirty fixes for having the tall house of cards, put in the page for brave and deeper Squeakers take, refine and put in trunk Must keep older builds into Experiments, or delete ? Edgar

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Trying to build SerialPlugin for IrDA under MPW (MacOS 8.6)
by Hans-Martin Mosner 24 May '12

24 May '12

Hi, I recently got a serial IrDA adapter and wanted to play around with it under Squeak. This adapter has a baudrate switching mechanism which depends on toggling the DTR and RTS lines in the correct sequence. To support this, I wanted to build a new SerialPlugin with an additional primitive. However, the plugin as built with MPW does not seem to be accepted by the VM, which still uses the internal plugin in all cases. I've tried placing the plugin in a 'Plugins' subfolder of the VM's folder, and then directly into the VM folder, without any success. I have considered placing debug outputs in appropriate places in the VM, but building a complete VM with MPW is not easy - I would have to create an MPW makefile for the whole shebang, which is more work than I can invest at the moment. Does any of you Mac aficionados have an idea where the problem could be? I have appended the plugin and corresponding source files in a ZIP file (it's not big) so if you want to try it out you could do it right now :-) BTW, would it make sense to incorporate support for switching serial port parameters of an open port into the standard plugin? Closing and opening a port just to change the baud rate seems a little overkill... Cheers, Hans-Martin

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Re: [squeak-dev] The Inbox: Sound-hjh.16.mcz
by Hannes Hirzel 15 Apr '11

15 Apr '11

P.S. I do not consider this fix to be a great idea (yet). The reasons why I have posted this 1) I would like to draw the attention to the class SampledSound (away from 'String', I do not like the idea of putting more things there) 2) I would just like to find out if there are some easy possibilities that we can make the sound library interface a bit more user friendly ('a small sound access DSL) --Hannes On Wed, 28 Apr 2010 15:24:24.473 0000, commits(a)source.squeak.org <commits(a)source.squeak.org> wrote: > A new version of Sound was added to project The Inbox: > http://source.squeak.org/inbox/Sound-hjh.16.mcz > > ==================== Summary ==================== > > Name: Sound-hjh.16 > Author: hjh > Time: 28 April 2010, 3:22:50.121 pm > UUID: 5859af18-61f2-4d48-83c9-f8703d57aeb3 > Ancestors: Sound-nice.15 > > playSoundNamed: aString > > does not play anything if there is no sound with the name 'aString'. The > user gets a dialog which is fine. But maybe there should be a sound as well. > > The playing of sounds should be made easier. > > SampledSound playSoundNamed: 'hello' > > is clumsy. > > Something like > Sound play: 'hello' > > (There is not class sound which is a bit odd, there is AbstractSound and > SampledSound for example) > > =============== Diff against Sound-nice.15 =============== > > Item was changed: > ----- Method: SampledSound class>>playSoundNamed: (in category 'sound > library') ----- > playSoundNamed: aString > "Play the sound with given name. Do nothing if there is no sound of that > name in the library." > "SampledSound playSoundNamed: 'croak'" > > | snd | > snd := self soundNamed: aString. > + snd ifNil: [snd:=Beeper default]. > + snd play. > + ^ snd > - snd ifNotNil: [snd play]. > - ^ snd > ! > > >

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Refactoring Browser and Rewrite Engine for Squeak
by Chris Cunnington 26 Mar '11

26 Mar '11

I just changed the Squeak Wiki <http://wiki.squeak.org/squeak/227> entry about the RefactoringBrowser to what you see below. If what I've said is wrong, please say how. Also, the username/password for changing the Squeak Wiki is squeak/viewpoints. Anybody can contribute or update. Chris The RefactoringBrowser is now a series of menues in the OmniBrowser. You get the OmniBrowser in your system by executing this code in a Workspace. "Omnibrowser" (Installer wiresong project: 'ob') install: 'OmniBrowser'; install: 'OB-Morphic'; install: 'OB-Standard'; install: 'OB-Shout'; install: 'OB-SUnitIntegration'. "Refactoring engine and OB integration" (Installer ss project: 'rb') install: 'AST'; install: 'Refactoring-Core'; install: 'Refactoring-Spelling'; project: 'Regex'; install: 'VB-Regex'. (Installer wiresong project: 'ob') install: 'OB-Refactory'; install: 'OB-Regex'. Once you've done that, when you reach for a browser, it will ask you which of three browsers you want: Packaging, Omni, or regular. You can change from one to the other by clicking on a menu on the top rim of an open browser.

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Browser whitewash
by Eliot Miranda 02 Mar '11

02 Mar '11

Hi All, while all these cool new browsers are great I get on well with the standard browser and my multi-window hack around it. But the multi-window hack shows up one major weakness with the default Browser, and that is it's use of list indices (systemCategoryListIndex classListIndex messageCategoryListIndex messageListIndex). These should just be systemCategoryName, className, messageProtocol (categories are in System-Organization; classes have protocols) messageSelector. If this happened the indices the browser has into the system would never become obsolete as does happen for example when one adds a class to a category, invalidating any classListIndex values into the same category, or systemCategoryListIndexes as happens often when the SystemOrganization changes on loading a package. So if anyone is looking for a small useful project, someone who probably has RB chops, how about reimplementing Browser so that it is essentially unchanged except for the indexes being ripped out, buried and stomped on? If someone did this I'd get round to using menu pragmas throughout and integrating the RB into the base Browser. cheers Eliot

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