Squeak-dev May 2010

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101 participants
401 discussions

Morph>>isStackBackground in unloaded images
by Casey Ransberger 25 May '10

25 May '10

I notice that after doing #unloadAllKnownPackages, yellow clicking the world causes PasteUpMorph to MNU on #isStackBackground. This is a method on Morph which is probably being unloaded with Etoys. I would tend to think that yellow clicking the world is something that should work in an unloaded image, but I'm not really sure what to do: I don't want to rip any stacks code out of the system in a way that isn't reloadable. Is the hypercard-like subsystem in recent versions of Squeak functional? I haven't figured it out. Recently on the fonc mailing list, Ted Kaehler revealed a V30-based image called "Moshi" which had the stacks stuff very much working, but I'm not sure that they'd port easily, because the system uses a (really interesting!) radical approach to text layout. The image is worth checking out anyway. His announcement was here: http://www.mail-archive.com/fonc@vpri.org/msg01279.html Wrt the error in unloaded images, I was wondering: is there a pattern around doing something conditionally based on whether or not a particular package is installed? -- Casey Ransberger

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The Trunk: Morphic-cmm.438.mcz
by commits＠source.squeak.org 25 May '10

25 May '10

Chris Muller uploaded a new version of Morphic to project The Trunk: http://source.squeak.org/trunk/Morphic-cmm.438.mcz ==================== Summary ==================== Name: Morphic-cmm.438 Author: cmm Time: 25 May 2010, 1:04:01.956 pm UUID: 5cd1f813-d403-4520-9752-0a1d4f18794d Ancestors: Morphic-spd.437 Don't refuse a prettyPrint request unnecessarily. =============== Diff against Morphic-spd.437 =============== Item was changed: ----- Method: TextEditor>>prettyPrint: (in category 'menu messages') ----- prettyPrint: decorated "Reformat the contents of the receiver's view (a Browser)." | selectedClass newText | - model selectedMessageName ifNil: [ ^ morph flash ]. selectedClass := model selectedClassOrMetaClass. + selectedClass ifNil: [ ^ morph flash ]. newText := selectedClass compilerClass new format: self text in: selectedClass notifying: self decorated: decorated. newText ifNotNil: [ self deselect ; selectInvisiblyFrom: 1 to: paragraph text size. self replaceSelectionWith: (newText asText makeSelectorBoldIn: selectedClass). self selectAt: self text size + 1 ]!

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Re: [squeak-dev] The Inbox: Morphic-hjh.438.mcz
by Hannes Hirzel 25 May '10

25 May '10

I have changed the last line of "Seaside 3.0 http://www.seaside.st" (Installer ss project: 'MetacelloRepository') install: 'ConfigurationOfSeaside30'. (Smalltalk at: #ConfigurationOfSeaside30) load. (Smalltalk at: #WASqueakServerAdaptorBrowser) open. to (Smalltalk at: #WAServerAdaptorBrowser) open. On Tue, 25 May 2010 13:11:43.163 0000, commits(a)source.squeak.org <commits(a)source.squeak.org> wrote: > A new version of Morphic was added to project The Inbox: > http://source.squeak.org/inbox/Morphic-hjh.438.mcz > > ==================== Summary ==================== > > Name: Morphic-hjh.438 > Author: hjh > Time: 25 May 2010, 1:07:35.185 pm > UUID: f6cdf86c-9eff-e442-8eb1-a722c1bda58d > Ancestors: Morphic-spd.437 > > To make the load sequence of latest Seaside 3.0alpha work in > http://ftp.squeak.org/trunk/Squeak4.2-10160-alpha.zip > > =============== Diff against Morphic-spd.437 =============== > > Item was changed: > (excessive method size, no diff calculated) > > >

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The Inbox: Morphic-hjh.438.mcz
by commits＠source.squeak.org 25 May '10

25 May '10

A new version of Morphic was added to project The Inbox: http://source.squeak.org/inbox/Morphic-hjh.438.mcz ==================== Summary ==================== Name: Morphic-hjh.438 Author: hjh Time: 25 May 2010, 1:07:35.185 pm UUID: f6cdf86c-9eff-e442-8eb1-a722c1bda58d Ancestors: Morphic-spd.437 To make the load sequence of latest Seaside 3.0alpha work in http://ftp.squeak.org/trunk/Squeak4.2-10160-alpha.zip =============== Diff against Morphic-spd.437 =============== Item was changed: (excessive method size, no diff calculated)

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MCConfigurationBrowser
by Hannes Hirzel 25 May '10

25 May '10

Hello I wonder what is the use for the general programmer of the MCConfigurationBrowser (Menu 'Tools') Is there some more documentation available in addition to http://tweakproject.org/ABOUT/FAQ/MCConfigurationUpdates/. It seems to be a tool to produce update streams... Is this correct? Regards Hannes

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[GSoC] Coding started yesterday!
by Mariano Martinez Peck 25 May '10

25 May '10

Hi everybody. First, let me apologize for the multiple cross post. I think it is good to show the Smalltalk community periodically the status of GSoC. The good news in this case is that yesterday the students started to code! This was one of the GSoC deadlines that you can read in http://gsoc2010.esug.org/ and in http://socghop.appspot.com/document/show/gsoc_program/google/gsoc2010/faqs#… . Last two weeks or so, students have been talking and discussing with their mentors, reading and investigating about the projects. Some students already started to code before. But yesterday was the official day to start to code. For those that didn't know, we got not 5 but 6 projects. We asked more and they gave us one more ;) Once again, if you want to look at the 6 selected projects, see http://gsoc2010.esug.org/projects We already told students to ask in case of problems or questions to their mentors but also to the community (trough the mailing list). So, let's help them! Students: don't be shy. Ask! ;) Good luck to all students and enjoy this wonderful opportunity you have. Now we are in the best part of the program! Best regards, Mariano Martinez Peck GSoC admin gsoc-admin(a)esug.org http://gsoc2010.esug.org

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Updated trunk image (Squeak4.2-10160-alpha.zip)
by Andreas Raab 25 May '10

25 May '10

Folks - Per Goran's reminder, I just uploaded a current trunk image to http://ftp.squeak.org/trunk/Squeak4.2-10160-alpha.zip As you can see I've bumped the version to 4.2alpha to indicate the new status. The list of changes is included below. Cheers, - Andreas (for the full history refer to the "What's new" section in the image) [------------------------- updated 05/24/10 ---------------------------] Compiler -------- Several edge cases in the compiler have been fixed evolving around handling of certain accesses to temps and global variables. The number of arguments in an FFI spec is now validated against the number of arguments to that method. Documentation ------------- HelpSystem has been added to the core image to provide a light-weight framework for improved documentation. It can be accessed via Help>>Help Browser. Various bits of documentation, including how to load some important packages, has been added. SUnit ----- All test cases now have an associated timeout after which the test is considered failed. The purpose of the timeout is to catch issues like infinite loops, unexpected user input etc. in automated test environments. Timeouts can be set on an individual test basis using the <timeout: seconds> tag or for an entire test case by implementing the #defaultTimeout method. Graphics -------- Reading PNG images has been significantly sped up for some common cases. The improvements are in 50-200x range and heavily affect interactive uses of such files.

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FFI debugging lesson
by Schwab,Wilhelm K 25 May '10

25 May '10

I did some FFI based work in Pharo 1.0 and realized something that I found surprising; this might help others new to it. An incorrect argument type in a call spec does not result in a compile-time error; instead it leads to "Cannot coerce arguments" at the time of the call. FWIW. Bill

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The Trunk: Kernel-ar.452.mcz
by commits＠source.squeak.org 25 May '10

25 May '10

Andreas Raab uploaded a new version of Kernel to project The Trunk: http://source.squeak.org/trunk/Kernel-ar.452.mcz ==================== Summary ==================== Name: Kernel-ar.452 Author: ar Time: 24 May 2010, 8:43:58.049 pm UUID: 468fbdc7-4fcb-9845-8223-5333334177b8 Ancestors: Kernel-nice.451 Eliot's fix for ContextPart>>tryNamedPrim... =============== Diff against Kernel-nice.451 =============== Item was changed: ----- Method: ContextPart>>tryNamedPrimitiveIn:for:withArgs: (in category 'private') ----- tryNamedPrimitiveIn: aCompiledMethod for: aReceiver withArgs: arguments "Hack. Attempt to execute the named primitive from the given compiled method" | selector theMethod spec | arguments size > 8 ifTrue:[^PrimitiveFailToken]. selector := #( tryNamedPrimitive tryNamedPrimitive: tryNamedPrimitive:with: tryNamedPrimitive:with:with: tryNamedPrimitive:with:with:with: tryNamedPrimitive:with:with:with:with: tryNamedPrimitive:with:with:with:with:with: tryNamedPrimitive:with:with:with:with:with:with: tryNamedPrimitive:with:with:with:with:with:with:with:) at: arguments size+1. theMethod := aReceiver class lookupSelector: selector. theMethod == nil ifTrue:[^PrimitiveFailToken]. spec := theMethod literalAt: 1. spec replaceFrom: 1 to: spec size with: (aCompiledMethod literalAt: 1) startingAt: 1. + theMethod flushCache. + selector flushCache. ^aReceiver perform: selector withArguments: arguments!

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The Trunk: Compiler-ar.143.mcz
by commits＠source.squeak.org 25 May '10

25 May '10

Andreas Raab uploaded a new version of Compiler to project The Trunk: http://source.squeak.org/trunk/Compiler-ar.143.mcz ==================== Summary ==================== Name: Compiler-ar.143 Author: ar Time: 24 May 2010, 8:42:36.032 pm UUID: af1d9aa9-96ff-9e4f-9df9-94e11682c0b4 Ancestors: Compiler-ar.142 Verify the number of arguments in FFI calls. =============== Diff against Compiler-ar.142 =============== Item was changed: ----- Method: Parser>>externalFunctionDeclaration (in category 'primitives') ----- externalFunctionDeclaration "Parse the function declaration for a call to an external library." | descriptorClass callType retType externalName args argType module | descriptorClass := Smalltalk at: #ExternalFunction ifAbsent:[nil]. descriptorClass == nil ifTrue:[^false]. callType := descriptorClass callingConventionFor: here. callType == nil ifTrue:[^false]. "Parse return type" self advance. retType := self externalType: descriptorClass. retType == nil ifTrue:[^self expected:'return type']. "Parse function name or index" externalName := here. (self match: #string) ifTrue:[externalName := externalName asSymbol] ifFalse:[(self match:#number) ifFalse:[^self expected:'function name or index']]. (self matchToken: #'(') ifFalse:[^self expected:'argument list']. args := WriteStream on: Array new. [here == #')'] whileFalse:[ argType := self externalType: descriptorClass. argType == nil ifTrue:[^self expected:'argument']. argType isVoid & argType isPointerType not ifFalse:[args nextPut: argType]. ]. + (args position = self properties selector numArgs) ifFalse:[ + ^self expected: 'Matching number of arguments' + ]. (self matchToken:#')') ifFalse:[^self expected:')']. (self matchToken: 'module:') ifTrue:[ module := here. (self match: #string) ifFalse:[^self expected: 'String']. module := module asSymbol]. Smalltalk at: #ExternalLibraryFunction ifPresent:[:xfn| | fn | fn := xfn name: externalName module: module callType: callType returnType: retType argumentTypes: args contents. self allocateLiteral: fn. ]. self addPragma: (Pragma keyword: #primitive: arguments: #(120)). ^true!

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