April 2011 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] Magma

by StÃ©phane Ducasse

> >> FYI: Chris Muller plans to update Magma for Pharo 1.2 >> >> http://lists.squeakfoundation.org/pipermail/magma/2011-April/001756.html >> >> We now get more package maintainers to see value in supporting Pharo >> and I think this is a good thing > > If you read that entire message, you'll see that he doesn't intend to > support Pharo beyond 1.2 without either A) compensation or B) > developers from Pharo to do the support. Ok then no magma after 1.2 if people do not help. This is also ok for me. I do not use magma. May be there is a bigger market in Squeak. Who knows. Stef

April 14, 2011

Re: [Pharo-project] Are you a Pharo contributor ??? [WAS] Re: Pharo Open Source Smalltalk â Contributors

by laurent laffont

On Thu, Apr 14, 2011 at 10:05 PM, Diogenes Moreira < diogenes.moreira(a)gmail.com> wrote: > Ok.. Well > > DiÃ³genes Alberto Moreira > CTO at Ilon S.A. and CTO at Sociadad Anonima para la Salud S.A. ( > www.ilon.com.ar) > Contributor on DBXTalk (http://squeakdbx.org) and other projects. > > Smalltalker And Pharo's lover :) > > No photo, no entry ;) Laurent > Best > > > On Thu, Apr 14, 2011 at 10:46 AM, Mariano Martinez Peck < > marianopeck(a)gmail.com> wrote: > >> if true...then what are you wainting for? >> >> http://www.pharo-project.org/community/contributors >> >> Send you data and nice picture :) >> >> Seriously, it is important for marketing among other things. Imagine you >> arrive to a new project...it is good to see that there are several >> contributing to it. Probably this page is not the best, but is something >> more. >> >> Mariano >> >> >> >> On Wed, Apr 13, 2011 at 8:18 PM, laurent laffont < >> laurent.laffont(a)gmail.com> wrote: >> >>> Added ! >>> >>> Laurent. >>> >>> On Wed, Apr 13, 2011 at 6:45 PM, Juan Vuletich <juan(a)jvuletich.org>wrote: >>> >>>> Hi Laurent, >>>> >>>> I'd like to be added to >>>> http://www.pharo-project.org/community/contributors . My picture is >>>> attached. Description text could be "Contributed the default anti-aliased >>>> fonts and the SimpleMorphic UI framework. Web page at www.jvuletich.org >>>> ". >>>> >>>> Thank you. >>>> >>>> Cheers, >>>> Juan Vuletich >>>> >>> >>> >> >> >> -- >> Mariano >> http://marianopeck.wordpress.com >> >> >

April 14, 2011

[Pharo-project] [COTDC] 48 - ClassFactoryForTestCase

by laurent laffont

Today: ClassFactoryForTestCase Come on guys ! Go Go Go !! Comment Of The Day Contest - One Day One Comment Rules: #1: Each day a not commented class is elected. Each day the best comment will be integrated with name of the author(s). #2: If you cannot comment it, deprecate it. Results: http://code.google.com/p/pharo/wiki/CommentOfTheDayContest Laurent

April 14, 2011

Re: [Pharo-project] Are you a Pharo contributor ??? [WAS] Re: Pharo Open Source Smalltalk â Contributors

by Diogenes Moreira

i forget the picture [image: photo.jpg] On Thu, Apr 14, 2011 at 5:05 PM, Diogenes Moreira < diogenes.moreira(a)gmail.com> wrote: > Ok.. Well > > DiÃ³genes Alberto Moreira > CTO at Ilon S.A. and CTO at Sociadad Anonima para la Salud S.A. ( > www.ilon.com.ar) > Contributor on DBXTalk (http://squeakdbx.org) and other projects. > > Smalltalker And Pharo's lover :) > > Best > > > On Thu, Apr 14, 2011 at 10:46 AM, Mariano Martinez Peck < > marianopeck(a)gmail.com> wrote: > >> if true...then what are you wainting for? >> >> http://www.pharo-project.org/community/contributors >> >> Send you data and nice picture :) >> >> Seriously, it is important for marketing among other things. Imagine you >> arrive to a new project...it is good to see that there are several >> contributing to it. Probably this page is not the best, but is something >> more. >> >> Mariano >> >> >> >> On Wed, Apr 13, 2011 at 8:18 PM, laurent laffont < >> laurent.laffont(a)gmail.com> wrote: >> >>> Added ! >>> >>> Laurent. >>> >>> On Wed, Apr 13, 2011 at 6:45 PM, Juan Vuletich <juan(a)jvuletich.org>wrote: >>> >>>> Hi Laurent, >>>> >>>> I'd like to be added to >>>> http://www.pharo-project.org/community/contributors . My picture is >>>> attached. Description text could be "Contributed the default anti-aliased >>>> fonts and the SimpleMorphic UI framework. Web page at www.jvuletich.org >>>> ". >>>> >>>> Thank you. >>>> >>>> Cheers, >>>> Juan Vuletich >>>> >>> >>> >> >> >> -- >> Mariano >> http://marianopeck.wordpress.com >> >> >

April 14, 2011

Re: [Pharo-project] Are you a Pharo contributor ??? [WAS] Re: Pharo Open Source Smalltalk â Contributors

by Diogenes Moreira

Ok.. Well DiÃ³genes Alberto Moreira CTO at Ilon S.A. and CTO at Sociadad Anonima para la Salud S.A. ( www.ilon.com.ar) Contributor on DBXTalk (http://squeakdbx.org) and other projects. Smalltalker And Pharo's lover :) Best On Thu, Apr 14, 2011 at 10:46 AM, Mariano Martinez Peck < marianopeck(a)gmail.com> wrote: > if true...then what are you wainting for? > > http://www.pharo-project.org/community/contributors > > Send you data and nice picture :) > > Seriously, it is important for marketing among other things. Imagine you > arrive to a new project...it is good to see that there are several > contributing to it. Probably this page is not the best, but is something > more. > > Mariano > > > > On Wed, Apr 13, 2011 at 8:18 PM, laurent laffont < > laurent.laffont(a)gmail.com> wrote: > >> Added ! >> >> Laurent. >> >> On Wed, Apr 13, 2011 at 6:45 PM, Juan Vuletich <juan(a)jvuletich.org>wrote: >> >>> Hi Laurent, >>> >>> I'd like to be added to >>> http://www.pharo-project.org/community/contributors . My picture is >>> attached. Description text could be "Contributed the default anti-aliased >>> fonts and the SimpleMorphic UI framework. Web page at www.jvuletich.org >>> ". >>> >>> Thank you. >>> >>> Cheers, >>> Juan Vuletich >>> >> >> > > > -- > Mariano > http://marianopeck.wordpress.com > >

April 14, 2011

Re: [Pharo-project] Improving Pharo's Exception Hierarchy

by Dale Henrichs

Cesar, Good point. Exception handling code even when using simple class-based exceptions and exception sets does indeed devolve into CaseOf constructs. Using classes, the following code is still common: [ (RangeError new) signal: 'access out of bounds' ] on: Error do: [:ex | (ex isKindOf: RangeError) ifTrue: [ "do your thang" ] ifFalse: [ ex pass ]]. and using ExceptionSets doesn't lead to anything better. At GemStone we _have_ added an extention that looks something like the following to get away from explicit CaseOf code: [ (NumericError new) reason: #rangeError; signal: 'access out of bounds' ] onExceptions: NaNError, RangeError do: { [:naNError | "do something with NANError"]. [:rangeError | "o something with RangeError"]. }. but it's just a different form of CaseOf...I don't think the use of reasonCodes is the cause... To get around this, I guess you'd have to start extending various Exception classes with "handler-specific" methods that would allow you to double dispatch your way out of the CaseOf construct... Dale n 04/14/2011 12:38 PM, csrabak(a)bol.com.br wrote: > Not willing to rattle cages, reading this particular set of postings > I wonder if its my sole feeling or this kind of code 'leads to' > naturally to a screaming need for a CaseOf construct? > > In the snippet below submitted by Dale if we have some other > [expected] numeric errors (a.k.a. 'reasons') you would end up with a > very hairy entanglement of ifTrue:[]ifFalse:[], wouldn't you? > > my 0.01999..... > > -- Cesar Rabak > > > Em 14/04/2011 15:52, Dale Henrichs< dhenrich(a)vmware.com> escreveu: > Stef, > > For rangeError the code would look like this: > > [ (NumericError new) reason: #rangeError; signal: 'access out of > bounds' ] on: NumericError do: [:ex | ex reasonCode == #rangeError > ifTrue: [ "do your thang" ] ifFalse: [ ex pass ]]. > > Dale > > On 04/14/2011 11:13 AM, StÃ©phane Ducasse wrote: >> Dale >> >> so it means that I write what? >> >> [] on: NumericError do: [:ex | ] >> >> how do I access the rangeError? >> >> >>>> >>> >>> Using Sven's hierachy as a starting point and taking some cues >>> from the GemStone exception hierarchy, I would suggest the >>> following (names atarting with # are reasonCodes in the namespace >>> of the parent exception class, instead of a unique class): >>> >>> Exception (messageText reasonCode) Abort Error NumericError >>> #floatingPointException #rangeError #naNError ZeroDivide >>> (dividend) FileStreamException (fileName) >>> #fileDoesNotExistException #fileExistsException (fileClass) >>> #cannotDeleteFileException #fileWriteError #fileReadError ** >>> #fileClosedException ** #cannotAccessFileException ** >>> #readonlyFileException ** MessageNotUnderstood (message, >>> receiver) #nonBooleanReceiver (object) OutOfMemory< handlers?> >>> ControlInterrupt Halt AssertionFailure BreakPoint CompileError >>> SyntaxError ** !exists! (input, position) #numberFormatException >>> ** #headlessError ** TimedOut ** (object, operation, timeout) >>> VerificationException IllegalOperation ** (operation, object) >>> #sizeMismatch (objects) #subclassResponsibility ** (message, >>> receiver) #notYetImplemented ** (message, receiver) >>> #cannotInstanciate ** (class) #readOnlyObject ** (object) >>> OutOfFreeSpace ** #invalidArgument ** (message, receiver, >>> argument) #notIndexable ** (object) #noKeyedAccess ** (object) >>> #nonIntegerIndex ** (receiver, index) #subscriptOutOfBounds ** >>> (receiver, index, from, to) NotFoundException ** (receiver, >>> object) #keyNotFound ** #valueNotFound ** #elementNotFound ** >>> StreamException (stream) #positionError ** (index, from, to) >>> EndOfStream ** #beginOfStream ** >>> >>> Notification Admonition LowMemory ** >>> >> >> > > > >

April 14, 2011

Re: [Pharo-project] [COTDC] 47 - TAssertable

by laurent laffont

On Wed, Apr 13, 2011 at 9:53 PM, Mariano Martinez Peck < marianopeck(a)gmail.com> wrote: > > > On Wed, Apr 13, 2011 at 9:28 PM, laurent laffont < > laurent.laffont(a)gmail.com> wrote: > >> On Tue, Apr 12, 2011 at 10:14 PM, laurent laffont < >> laurent.laffont(a)gmail.com> wrote: >> >>> Today: TAssertable >>> >> >> Is it used ? Could not find any reference. >> >> > I think it is not used yet. I think it is a Trait so that we can make > things assertable and not need to subclass from TestCase for example. I may > expect that TestCase uses such Trait instead of implementing all those > methods, but it is not the case. Even more, TAssertable users size -> 0. > > So...seems a work half done. Adrian Kuhn introduce it. Check > > http://forum.world.st/template/NamlServlet.jtp?macro=search_page&node=12948… > > OK I put your answer as comment. Laurent. > Cheers > > Mariano > > >> >> Laurent. >> >> >> >> >>> >>> Comment Of The Day Contest - One Day One Comment >>> Rules: >>> #1: Each day a not commented class is elected. Each day the best comment >>> will be integrated with name of the author(s). >>> #2: If you cannot comment it, deprecate it. >>> Results: http://code.google.com/p/pharo/wiki/CommentOfTheDayContest >>> >>> Laurent >>> >> >> > > > -- > Mariano > http://marianopeck.wordpress.com > >

April 14, 2011

Re: [Pharo-project] Are you a Pharo contributor ??? [WAS] Re: Pharo Open Source Smalltalk â Contributors

by laurent laffont

Done Laurent. On Thu, Apr 14, 2011 at 3:56 PM, Esteban Lorenzano <estebanlm(a)gmail.com>wrote: > Oh, well... > > Esteban Lorenzano > Owner of Smallworks (http://smallworks.com.ar) > Author of Mars (http://smallworks.com.ar/en/community/Mars) > Contributor on several projects, like DBXTalk (http://squeakdbx.org) etc. > We use Pharo for everything we do :) > > And here is my picture: > > > > El 14/04/2011, a las 10:46a.m., Mariano Martinez Peck escribiÃ³: > > if true...then what are you wainting for? > > http://www.pharo-project.org/community/contributors > > Send you data and nice picture :) > > Seriously, it is important for marketing among other things. Imagine you > arrive to a new project...it is good to see that there are several > contributing to it. Probably this page is not the best, but is something > more. > > Mariano > > > > On Wed, Apr 13, 2011 at 8:18 PM, laurent laffont < > laurent.laffont(a)gmail.com> wrote: > >> Added ! >> >> Laurent. >> >> On Wed, Apr 13, 2011 at 6:45 PM, Juan Vuletich <juan(a)jvuletich.org>wrote: >> >>> Hi Laurent, >>> >>> I'd like to be added to >>> http://www.pharo-project.org/community/contributors . My picture is >>> attached. Description text could be "Contributed the default anti-aliased >>> fonts and the SimpleMorphic UI framework. Web page at www.jvuletich.org >>> ". >>> >>> Thank you. >>> >>> Cheers, >>> Juan Vuletich >>> >> >> > > > -- > Mariano > http://marianopeck.wordpress.com > > >

April 14, 2011

Re: [Pharo-project] Improving Pharo's Exception Hierarchy

by Dale Henrichs

On 04/14/2011 12:04 PM, Henrik Sperre Johansen wrote: > On 14.04.2011 20:52, Dale Henrichs wrote: >> Stef, >> >> For rangeError the code would look like this: >> >> [ >> (NumericError new) >> reason: #rangeError; >> signal: 'access out of bounds' >> ] >> on: NumericError >> do: [:ex | >> ex reasonCode == #rangeError >> ifTrue: [ "do your thang" ] >> ifFalse: [ ex pass ]]. >> >> Dale > > Why not use #tag, which is already ANSI? > > Cheers, > Henry > At GemStone we decided not to use tag (we had several cats to skin), but tag could certainly be used... Dale

April 14, 2011

Re: [Pharo-project] presentation

by laurent laffont

On Thu, Apr 14, 2011 at 9:16 PM, Santiago Bragagnolo < santiagobragagnolo(a)gmail.com> wrote: > > Hi Pharo friends, I'm Santiago Bragagnolo from Argentina. (Colleague of > some users of this list from Argentina too) > > I'm currently teaching smalltalk in UTN and getting deep in this amazing > world. So, i want to contribute to pharo comunity, fixing issues, developing > new features, etc. Ok, how can achive mi goals xD? (too formal? sorry if my > english is not enough clear or usual :) ) > Hi Santiago, to fix issues see: http://www.pharocasts.com/2010/03/how-to-contribute-to-pharo.html Blogs and documentation are always nice ;) Laurent. > Greetings. > > Santiago. > > >

April 14, 2011