Squeak-dev February 2013

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225 discussions

Loading FFI is broken
by Frank Shearar 20 Nov '13

20 Nov '13

(Installer monticello mc: (MCHttpRepository new location: 'http://source.squeak.org/FFI')) install: 'FFI-Kernel-eem.24.mcz'. "There's a -tbn.25, but that's not important to this post" fails with an MNU: ExternalFunction class >> callingConventionFor:. As far as I can see what's happening is this: * during the loading of the mcz ExternalFunction is defined, * a method is parsed (#XOpenDisplay, which has a pragma <cdecl: X11Display* ''XOpenDisplay'' (char*) module:''X11''>) * Parser >> externalFunctionDeclaration checks whether ExternalFunction is defined. * It is, so tries to evaluate `descriptorClass callingConvention: here` and boom, because ExternalFunction class >> callingConventionFor: _has not been loaded yet_. I've seen this kind of issue with Helvetia code: sometimes you simply have to load class-side methods first. Thoughts? Lukas worked around the issue with his Helvetia code by directly patching Monticello, and ripping out its "try to do atomic loading" mechanism. frank

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Re: [squeak-dev] The Inbox: System-cmm.497.mcz
by Levente Uzonyi 01 Jul '13

01 Jul '13

Two things about the implementation: - using #isOctetCharacter is not good enough. When I wrote ascii, I meant the 7-bit US-ASCII characters. For example $á is both #isOctetCharacter and #isAlphaNumeric, but I don't think it should appear in a method's timestamp. - some methods have Smalltalk123 as author Levente On Fri, 14 Sep 2012, commits(a)source.squeak.org wrote: > A new version of System was added to project The Inbox: > http://source.squeak.org/inbox/System-cmm.497.mcz > > ==================== Summary ==================== > > Name: System-cmm.497 > Author: cmm > Time: 14 September 2012, 3:14:45.552 pm > UUID: d55d42e9-1782-4cdd-a0d0-253bf60940f5 > Ancestors: System-ul.496 > > Updates for the Author proposal: > > - Completely separate the model from the UI. Author should be a "pure domain object." The PerSe methods are no longer needed. > > - Instead, let Utilities class take responsibility for employing Squeak UI-elements to set the current Author attributes, as well as for being the "convenient" way to access these attributes. > > - Since we are reifying an Author from a String, it is now treated as a whole Author object, rather than just a String-holder. Allow multiple Author instances to exist and the #current Author can be swapped out with another Author instance. > > =============== Diff against System-ul.496 =============== > > Item was removed: > - ----- Method: Author class>>changeStamp (in category 'convenience') ----- > - changeStamp > - > - ^self current changeStamp! > > Item was removed: > - ----- Method: Author class>>changeStampPerSe (in category 'convenience') ----- > - changeStampPerSe > - > - ^self current changeStampPerSe! > > Item was changed: > ----- Method: Author class>>current (in category 'instance creation') ----- > current > + ^ instance ifNil: > + [ self current: self new. > + instance ]! > - > - ^instance ifNil: [ instance := super new ]! > > Item was added: > + ----- Method: Author class>>current: (in category 'class initialization') ----- > + current: anAuthor > + instance := anAuthor! > > Item was changed: > ----- Method: Author class>>fullNamePerSe (in category 'pharo compatibility') ----- > fullNamePerSe > + ^ self current initials! > - > - ^self initialsPerSe! > > Item was removed: > - ----- Method: Author class>>initials (in category 'convenience') ----- > - initials > - > - ^self current initials! > > Item was removed: > - ----- Method: Author class>>initialsPerSe (in category 'convenience') ----- > - initialsPerSe > - > - ^self current initialsPerSe! > > Item was removed: > - ----- Method: Author class>>new (in category 'instance creation') ----- > - new > - > - self error: 'Use #current'! > > Item was changed: > ----- Method: Author class>>reset (in category 'instance creation') ----- > reset > + self current: nil! > - > - instance := nil! > > Item was changed: > ----- Method: Author class>>useAuthor:during: (in category 'pharo compatibility') ----- > + useAuthor: aString during: aBlock > + ^ self current > + useInitials: aString > + during: aBlock! > - useAuthor: aString during: aBlock > - > - ^self useInitials: aString during: aBlock! > > Item was removed: > - ----- Method: Author class>>useInitials:during: (in category 'convenience') ----- > - useInitials: aString during: aBlock > - > - ^self current useInitials: aString during: aBlock! > > Item was removed: > - ----- Method: Author class>>username (in category 'convenience') ----- > - username > - > - ^self current username! > > Item was removed: > - ----- Method: Author class>>usernamePerSe (in category 'convenience') ----- > - usernamePerSe > - > - ^self current usernamePerSe! > > Item was changed: > ----- Method: Author>>changeStamp (in category 'accessing') ----- > changeStamp > + ^ self changeStampWithInitials: (self initials ifEmpty: [ 'unknown' ])! > - > - ^self changeStampWithInitials: self initials! > > Item was removed: > - ----- Method: Author>>changeStampPerSe (in category 'accessing') ----- > - changeStampPerSe > - > - ^self changeStampWithInitials: (self initialsPerSe ifEmpty: [ '.' ])! > > Item was changed: > ----- Method: Author>>fullName (in category 'pharo compatibility') ----- > fullName > + ^ self initials! > - > - ^self initials! > > Item was removed: > - ----- Method: Author>>fullNamePerSe (in category 'pharo compatibility') ----- > - fullNamePerSe > - > - ^self initialsPerSe! > > Item was changed: > ----- Method: Author>>initialize (in category 'initialize-release') ----- > initialize > - > super initialize. > + initials := username := String empty! > - initials := String new. > - username := String new > - ! > > Item was changed: > ----- Method: Author>>initials (in category 'accessing') ----- > initials > + ^ initials! > - > - ^initials ifEmpty: [ self requestAndSetInitials ]! > > Item was removed: > - ----- Method: Author>>initialsPerSe (in category 'accessing') ----- > - initialsPerSe > - > - ^initials! > > Item was removed: > - ----- Method: Author>>requestAndSetInitials (in category 'accessing') ----- > - requestAndSetInitials > - > - ^initials := (UIManager default > - request: 'Please type your initials: ' translated > - initialAnswer: initials) select: [ :each | > - #( > - ($A $Z) > - ($a $z) > - ($0 $9)) anySatisfy: [ :range | > - each between: range first and: range second ] ]! > > Item was removed: > - ----- Method: Author>>requestAndSetUsername (in category 'accessing') ----- > - requestAndSetUsername > - > - ^username := UIManager default > - request: 'Please type your name:' translated > - initialAnswer: (username > - ifEmpty: [ 'Your Name' translated ] > - ifNotEmpty: [ username ])! > > Item was changed: > ----- Method: Author>>username (in category 'accessing') ----- > username > + ^ username! > - > - ^username ifEmpty: [ self requestAndSetUsername ]! > > Item was removed: > - ----- Method: Author>>usernamePerSe (in category 'accessing') ----- > - usernamePerSe > - > - ^username! > > Item was changed: > ----- Method: SpaceTally>>spaceTally: (in category 'class analysis') ----- > + spaceTally: classes > - spaceTally: classes > "Answer a collection of SpaceTallyItems representing the memory space (in bytes) consumed by the code and instances of each class in the system. Note that code sizes do not currently report memory consumed by class variables. " > - > "((SpaceTally new spaceTally: (Array with: TextMorph with: Point)) asSortedCollection: [:a :b | a spaceForInstances > b spaceForInstances]) asArray" > - > self preAllocateResultsFor: classes. > Smalltalk garbageCollect. > self computeSpaceUsage. > ^ results > + sort: [ : a : b | a spaceForInstances > b spaceForInstances ] ; > + yourself! > - ! > > Item was changed: > ----- Method: Utilities class>>authorInitials (in category 'identification') ----- > authorInitials > + "Answer the initials to be used to identify the current code author." > + ^ self authorInitialsPerSe ifEmpty: > + [ self > + setAuthorInitials ; > + authorInitialsPerSe ]! > - "Answer the initials to be used to identify the current code author. " > - > - ^Author initials! > > Item was changed: > ----- Method: Utilities class>>authorInitialsPerSe (in category 'identification') ----- > authorInitialsPerSe > + ^ Author current initials! > - "Answer the currently-prevailing author initials, such as they, empty or not" > - > - ^Author initialsPerSe! > > Item was changed: > ----- Method: Utilities class>>authorName (in category 'identification') ----- > authorName > + ^ self authorNamePerSe ifEmpty: > + [ self > + setAuthorName ; > + authorNamePerSe ]! > - > - ^Author username! > > Item was changed: > ----- Method: Utilities class>>authorNamePerSe (in category 'identification') ----- > authorNamePerSe > + ^ Author current username! > - > - ^Author usernamePerSe! > > Item was changed: > ----- Method: Utilities class>>changeStamp (in category 'identification') ----- > + changeStamp > + ^ Author current changeStampWithInitials: self authorInitials! > - changeStamp > - > - ^Author changeStamp! > > Item was changed: > ----- Method: Utilities class>>changeStampPerSe (in category 'identification') ----- > changeStampPerSe > + ^ Author current changeStamp! > - > - ^Author changeStampPerSe! > > Item was changed: > ----- Method: Utilities class>>setAuthorInitials (in category 'identification') ----- > setAuthorInitials > "Put up a dialog allowing the user to specify the author's initials. " > + | oldInitials | > + oldInitials := Author current initials. > + Author reset. > + Author current initials: > + ((UIManager default > + request: 'Please type your initials: ' translated > + initialAnswer: oldInitials) select: [ : each | each isOctetCharacter and: [ each isAlphaNumeric ] ])! > - > - ^Author current requestAndSetInitials! > > Item was changed: > ----- Method: Utilities class>>setAuthorName (in category 'identification') ----- > setAuthorName > + Author current username: > + (UIManager default > + request: 'Please type your name:' translated > + initialAnswer: (Author current username ifEmpty: [ 'Your Name' translated ]))! > - > - Author requestAndSetUsername! > > >

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GemSource, seaside.gemstone.com, SS3 MAINTENANCE Saturday June 9 from 10am-2pm PDT
by Dale Henrichs 26 Jun '13

26 Jun '13

Maintenance is scheduled for this Saturday and according to the internal announcement no downtime is anticipated: The work is considered low risk and no downtime is anticipated, this is being sent out as a courtesy. If you experience problems on Saturday, don't hesitate to send email. Dale

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Re: [squeak-dev] Towards SqueakCore (adjusting the GetText package)
by H. Hirzel 12 May '13

12 May '13

On 2/13/13, Bert Freudenberg <bert(a)freudenbergs.de> wrote: > On 2013-02-12, at 21:24, Colin Putney <colin(a)wiresong.com> wrote: > >> We should especially look at System->GetText > > IMHO #translated and co. should be part of the System package, because > senders are necessarily sprinkled all over the place. There should be a > translator registry and if no translator were registered it would return the > string untranslated. GetText would hook into that. > > - Bert - At the moment the class TextDomainManager is in a specialezed GetText package. There is GetText-Editor and GetText-Localization There is in addition a package System-Localization which contains classes like ISOLanguageDefinition, InternalTranslator, Locale, NaturalLanguageTranslator Bert, is what you mean done by exchanging GetText-Editor --> System-GetTextEditor GetText-Localization --> System-GetTextLocalization How should the translation registry class be named? --Hannes > > >

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Re: About HyperCard ( was Re: [squeak-dev] Getting rid of coloured code)
by karl ramberg 01 May '13

01 May '13

Etoys image also have a stack morph Karl On Wed, Feb 27, 2013 at 11:24 AM, Jecel Assumpcao Jr. <jecel(a)merlintec.com>wrote: > While the DynaBookJr (I always misread "DBJr" as "DataBase Jr") is > indeed a good modern replacement for HyperCard, isn't the normal > BookMorph already available in Squeak a reasonable approximation? > > -- Jecel > > >

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Everyone's talking about debuggers these days
by Frank Shearar 08 Apr '13

08 Apr '13

First it was Gilad Bracha - http://gbracha.blogspot.co.uk/2012/11/debug-mode-is-only-mode.html - and now John Nolan - http://stigmergist.blogspot.co.uk/2013/01/debugger-first-vm-development.html I also saw a really neat demo of a framework for debugging system calls. I hope to find out more about this when I quiz the implementor in early February. I would be less vague if I could remember the name of the framework! frank

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Re: [Vm-dev] Accelerating LargeIntegersPlugin phase 2
by tim Rowledge 02 Apr '13

02 Apr '13

On 20-01-2013, at 9:39 AM, "David T. Lewis" <lewis(a)mail.msen.com> wrote: > On Sun, Jan 20, 2013 at 04:52:42PM +0000, Frank Shearar wrote: >> >> At the risk of sounding rather ignorant, what kind of machine would >> that be? IIRC the 68k machines were big endian but they've been wiped >> out now haven't they? >> It has taken many years of blood, effort, toil, tears, sweat, pointed emails and sharply aimed comments, but finally, finally, my friends, at last we are *free* from the evil of Big Endian! At last we can release our families from the underground bunkers of safety and let them wander the outer world as nature intended. > > Most certainly not, Edgar still has one. Ah, him. Well, I've heard about him and his nasty habits. We're onto you Edgar! > > Wikipedia gives a good summary: http://en.wikipedia.org/wiki/Endianness > > Older Macs are big endian, and the Squeak VM was originally written on > big endian machines. ARM processors can run in either mode. Most likely > they run as little endian for Linux, and I'm not sure which mode is used > for RISC OS. I've never yet come across an ARM being used in bigendian mode, but I have to assume some large customer wanted it in order to persuade ARM Ltd to pervert the natural course of things. So somewhere out there are a few million processors yearning to be released from bondage. I take comfort from the thought of the overwhelming majority of the approximately 18 *billion* ARM processors being Properly Ended. To be honest I really think it's time we considered changing Squeak to use little-endian form for bitmaps, at least. There aren't any major systems out there that use big endian any more. If any legacy devices still need it, they can be adapted to use the same tricks that current little-endian machines have to use *every time* something is displayed on screen. All I can say is thank goodness that the ATT 'Hobbit' processor never took off, with that insane middle-endian nonsense. tim -- tim Rowledge; tim(a)rowledge.org; http://www.rowledge.org/tim The halfway point between right and wrong is still damn wrong. Compromise isn't always a solution

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Towards SqueakCore
by Frank Shearar 01 Apr '13

01 Apr '13

In the interests of revisiting Pavel Krivanek's work, and a long term goal of this community, I thought I'd use the Dependency Browser and dig out interpackage dependencies. By scraping the DependencyBrowser's contents together with a bit of UI scripting I've constructed a dotfile of Trunk (attached). Turning this into a PNG results in an 11MB image! [1] Nodes near the top are nodes that aren't used by many things. For instance, ReleaseBuilder's right at the top because nothing depends on it. One thing to note is that XML-Parser and Nebraska are only used by Universes, and that Universes isn't used by anything else. It occurs to me that we could thus remove these 3 packages from trunk and add the loading of these to ReleaseBuilderFor4dot5 [2], and still end up with a 4.5 that while apparently unchanged, actually has a smaller core. What do you think of trying this out as an experiment? How would we unload these packages? (I should note: I've nothing against these packages. They're just packages that aren't woven into the guts of the image, and are thus easily removable.) frank [1] If you have dot installed, `dot -Tpng -o trunk-deps.dot trunk-deps.png` will do the trick. [2] Installer squeak package: 'trunk'; install: '39Deprecated-ar.19'; install: '311Deprecated-nice.2'; install: 'XML-Parser-ael.35'; install: 'Nebraska-ul.35'; install: 'Universes-nice.45'.

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New catalog entry for Seaside 3.0.3
by Chris Muller 24 Mar '13

24 Mar '13

Hi Tobias, I made new Community-Supported catalog entries for: DynamicBindings ("4.4" and "head") KomHttpServer ("4.4") Grease ("1.1.0" and "head") Sport (already up-to-date, no action taken) Seaside ("3.0.3") These each consume with single-click (necessary pre-reqs are loaded automatically for each package). Installing the head versions always perform a merge, similar to updating trunk packages. I didn't know what version to make for DynamicBindings and KomHttpServer so I just made them the same as the Squeak version they're for. I didn't make head versions of KomHttpServer or Seaside because I wanted to ask your (and others') opinions about it. If Seaside Development Team is still putting out Squeak versions and using Metacello to keep that managed, our catalog entries should definitely reflect that. Otherwise, it's worth asking, what is the best way for us as a community to keep up a dependably working version of Seaside for Squeak? Do you know why the Metacello scripts keep failing for stuff that was once working? Best, Chris On Tue, Feb 26, 2013 at 7:29 AM, Tobias Pape <Das.Linux(a)gmx.de> wrote: > Hi again Seasiders > > > Anfang der weitergeleiteten Nachricht: > >> Von: Tobias Pape <Das.Linux(a)gmx.de> >> Betreff: [Seaside] Making seaside load in Squeak again. >> Datum: 26. Februar 2013 09:42:56 MEZ >> An: Seaside - general discussion <seaside(a)lists.squeakfoundation.org> >> Kopie: The general-purpose Squeak developers list <squeak-dev(a)lists.squeakfoundation.org> >> Antwort an: Seaside - general discussion <seaside(a)lists.squeakfoundation.org> >> >> Hey Seasiders >> >> I am trying to prepare a stable Seaside Image for Squeak 4.4 >> and just tried loading via the Metacello configuration >> (Like this: >> >> Installer ss >> project: 'MetacelloRepository'; >> install: 'ConfigurationOfSeaside30'. >> ((Smalltalk at: #ConfigurationOfSeaside30 project) version: #stable) load >> >> ) >> >> This fails, as there is a dependency on Zinc #stable in >> #squeakCommon. Also, I think it is worthwhile to add WebCilent >> to the Adaptors for, at least, Squeak, if not Pharo, too. >> >> I have seen that there is progress for that in the Seaside31 repository, >> especially for the 3.1 version of Seaside. > > In my effort to see what I can do I succeeded in > Running Seaside 3.1 atop Squeak 4.4 (I needed to bring an interim Grease 1.1.1 version for that) > > You load [1] > http://netshed.de/seaside/ConfigurationOfGrease-topa.191.mcz > http://netshed.de/seaside/ConfigurationOfSeaside30-topa.415.mcz > and then you can DoIt > > ((Smalltalk at: #ConfigurationOfSeaside30) project version: '3.1.0') load: #(Development OmniBrowser Swazoo WebClient Welcome). > (Smalltalk at: #WAServerAdaptorBrowser) open > > in a fresh Squeak4.4-12327. > (Then rightclick in the Seaside Control Panel and 'Add adaptor', a WebServer Adaptor, > which uses WebClient. Then go to localhost:8080 and be happy.) > > Now I will try to work on Seaside 3.0. > >>> > To any Seaside dev, please consider merging my versions :) > << > > Best > -Tobias > > [1] this is no MC repo, I just don't have access to the Seaside Repos and didn't want to pollute > any MetacelloRepository.

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squeak.org - an update
by Chris Cunnington 14 Mar '13

14 Mar '13

I've redesigned squeak.org and I think all the problems are solved. The problems were a doubling menu bar; an extraneous navbar; Altitude components that didn't jibe with the Bootstrap layout; and, 24-char tokens instead of regular looking URIs (i.e. /community or /blogs). The way the Altitude's examples are laid out uses composition and a class that acts as a frame with a navbar. The frame allows other classes/components to be swapped out of an ivar called #current with the navbar. I did away with that and replaced composition with inheritance. Now there is an abstract superclass (i.e. SQAbstractSuperclass) and every page with content is a subclass with a #renderConentOn: method. The navbar supplied by Bootstrap is created by the abstract superclass. All links are hyperlinks (i.e. all "html a href:" and no "html a navigate:", "html a callback:", or "html a linkTo:"). So the superclass creates the menu. All the content classes have #renderContentOn:. The only remaining thing is to list all the tokens you'll use for URIs in SQSqueakApplication>>#initializeLocator. initializeLocator locator at: ALPath root put: SQHomePage new asResource. locator at: ALPath / 'license' put: SQLicensePage new asResource. locator at: ALPath / 'blogs' put: SQBlogsPage new asResource. locator at: ALPath / 'docs' put: SQDocumentationPage new asResource. locator at: ALPath / 'community' put: SQMailingListsPage new asResource. locator at: ALPath / 'devlinks' put: SQDeveloperLinksPage new asResource. locator at: ALPath / 'projects' put: SQProjectLinksPage new asResource. The result is a website using standard looking URIs that is dead easy to make. It won't win any prizes, but it fits the spec and is simple as a pin. Altitude is nothing of not versatile. There are color, positioning, etc. details so it'll be a few days before I deploy the new version. Chris

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