November 2018 - Pharo-users

Iceberg documentation, tutorial, video
by nacho Nov. 19, 2018

Nov. 19, 2018

Hi! I'm trying to learn how to use Iceberg to switch my projects to GutHub. Are there any docs, tutorials o video showing how to configure, use, Iceberg? Thanks in advance! cheers nacho ----- Nacho Smalltalker apprentice. Buenos Aires, Argentina. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Loading ZincHTTPComponents iget stuck in Pharo 7.0.0.RC1-32 bit in Win 10
by Sanjay Minni Nov. 19, 2018

Nov. 19, 2018

Hi I am trying to load one of our packages which is up and running in Pharo 6.1 in Pharo-7.0.0.RC1 (Pharo 7.0.0.RC1 32bit in Win 10) It gets stuck at Loading Zinc-Character-Encoding-Tests-Sven....43, the environment freezes no further messages. I tried loading only ConfigurationOfZincHTTPComponents in a fresh image - same result (loading 2.9.2 of Conf...ZincHTTP...) how to get around this regards ----- --- Regards, Sanjay -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Issue with starting 32-bit Pharo under Linux
by Richard Kenneth Eng Nov. 18, 2018

Nov. 18, 2018

I'm running 32-bit Debian. I installed 32-bit Pharo 6.1 using: *wget -O- https://get.pharo.org <https://get.pharo.org> | bash* When I try to run Pharo with: *./pharo-ui Pharo.image &* I get this error: PrimitiveFailed: primitive #createDirectory: in UnixStore failed And when I try to close the image, I get this error: PrimitiveFailed: primitive #primSize: in MultiByteFileStream failed What's going on???

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External module not found
by Richard Kenneth Eng Nov. 18, 2018

Nov. 18, 2018

I have a most peculiar problem. I've been using Pierce Ngâs PasswordCrypt <http://www.samadhiweb.com/blog/2017.02.18.shacrypt.html> encryption package with Pharo 5. Now that I'm using Pharo 6, it doesn't seem to work anymore. The ffiCall:module: message always gives me "External module not found". So my question is, what alternative package can I use to replace the it for Pharo 6? Should I go back to Pharo 5?

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Re: [Pharo-users] About the IoT Hackathon last Friday
by Andy Burnett Nov. 17, 2018

Nov. 17, 2018

Do you think there is anyway we could run one of these virtually? I would love to have been involved, but finding time to travel is tricky. A virtual (or blended) event would be much easier. If it helps, I have a corporate Zoom account thst would support up to 500 participants - gotta think big :-) Cheers Andy

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VW2Pharo ? (Was: Pharo2VW (Was:[vwnc] Parsing in Smalltalk))
by CÃ©drick BÃ©ler Nov. 17, 2018

Nov. 17, 2018

> Objet: RÃ©p : [Pharo-users] Pharo2VW (Was:[vwnc] Parsing in Smalltalk) > >> I really like the tool as it makes cross-platform-life a lot easier. > > Thanks :-) > >> I really wish there was a similar tool for the reverse direction, too! > > That is interesting. Anyone else interested in such a tool? A tool to port from VW to Pharo ? Me interested, at least to port Christian work on RDF :) Cheers, CÃ©drick > > Cheers, > Alexandre > > >> >> Cheers! Steffen >> >> Am .10.2018, 22:38 Uhr, schrieb Alexandre Bergel via Pharo-users <pharo-users(a)lists.pharo.org>: >> >>> Thanks Steffen for your contribution to Pharo2VW. >>> We reviewed and accepted your PullRequests. >>> >>> Alexandre >>> >>>> On Oct 19, 2018, at 6:29 AM, Steffen MÃ¤rcker <merkste(a)web.de> wrote: >>>> >>>> Nevermind, I figured it out easily. Must been blind before. >>>> >>>> Many thanks to the Iceberg team, the tool works like a charm in 6.1! >>>> >>>> >>>> Am .10.2018, 10:58 Uhr, schrieb Steffen MÃ¤rcker <merkste(a)web.de>: >>>> >> <---Schnitt---> >>>> >>> >>> >> >> >> > > > >

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Metacello baseline loading from cmd
by Vitor Medina Cruz Nov. 17, 2018

Nov. 17, 2018

Hello, How do I load a baseline located at disk? I tried inside /home/vitormcruz/testpharo/: ./pharo Pharo.image eval "Metacello new baseline: 'Employees'; repository: > 'filetree://employees/pharo'; load: #(core)" > But then I got: Could not resolve: BaselineOfEmployees [BaselineOfEmployees] in > */home/vitormcruz/testpharo/pharo-local/package-cache* > filetree:///home/vitormcruz/testpharo/employees/pharo > And ls -la of /home/vitormcruz/testpharo/employees/pharo gives: drwxrwxr-x 4 vitormcruz vitormcruz 4096 Nov 12 16:21 . > drwxrwxr-x 4 vitormcruz vitormcruz 4096 Nov 12 15:57 .. > -rw-rw-r-- 1 vitormcruz vitormcruz 69 Nov 12 16:21 .filetree > -rw-rw-r-- 1 vitormcruz vitormcruz 21 Nov 12 15:57 .propertiesdrwxrwxr > -x 2 vitormcruz vitormcruz 4096 Nov 12 15:57 BaselineOfEmployeesdrwxrwxr > -x 2 vitormcruz vitormcruz 4096 Nov 12 15:57 Employees It is strange that it tried to access the local cache, is that correct? Im am using an Ubuntu 16 lst distribution. Regards, Vitor

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[ANN] Migration of MooseAlgos and DeepTraverser
by Cyril Ferlicot Nov. 15, 2018

Nov. 15, 2018

Hello, This week I migrated MooseAlgos and DeepTraverser to Github. I also fixed MooseAlgos for Pharo 7 and did some cleaning. They both have TravisCI enabled. MooseAlgos: https://github.com/moosetechnology/MooseAlgos DeepTraverser: https://github.com/pharo-contributions/DeepTraverser -- Cyril Ferlicot https://ferlicot.fr

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Re: [Pharo-users] Question about pharo's object model
by Julien Nov. 15, 2018

Nov. 15, 2018

Hello and welcome :-) When a method is Â« public Â» , it means that it is usable by any other object in the system. In Pharo, methods are Â« public Â» and instance variables are Â« protected Â». Â« protected Â» means that the instance variable is only usable from inside the class defining it or from subclasses of the class defining it. Some languages (as Java) define the concepts of Â« private Â» method / instance variable which means that the method / instance variable can only be accessed from the class defining it (and not its subclasses) and Â« package Â» which means that the method / instance variable can only be accessed from classes inside the same package. In fact, in java you can choose the visibility you want for each method / instance variable. In Pharo, this is fixed, methods are Â« public Â» and instance variables are Â« protected Â». So you do not need to bother. All these concepts are related to encapsulation [1] which is an important concept of OOP. BTW, there are some posts related to your question on StackOverflow [2] which I recommend to you. Cheers, Julien Links: [1]: https://en.wikipedia.org/wiki/Object-oriented_programming#Encapsulation <https://en.wikipedia.org/wiki/Object-oriented_programming#Encapsulation> [2]: https://stackoverflow.com/questions/2647289/what-does-it-mean-for-a-method-… <https://stackoverflow.com/questions/2647289/what-does-it-mean-for-a-method-…> --- Julien Delplanque Doctorant Ã lâUniversitÃ© de Lille http://juliendelplanque.be/phd.html Equipe Rmod, Inria BÃ¢timent B 40, Avenue Halley 59650 Villeneuve d'Ascq NumÃ©ro de tÃ©lÃ©phone: +333 59 35 86 40 > Le 15 nov. 2018 Ã 05:43, iu136 via Pharo-users <pharo-users(a)lists.pharo.org> a Ã©crit : > > > De: iu136 <iu136(a)yahoo.com> > Objet: Question about pharo's object model > Date: 15 novembre 2018 Ã 05:43:45 UTC+1 > Ã: pharo-users(a)lists.pharo.org > > > hello guys > I'm new to programming, I started programming using pharo, I had a question > about pharo's object model. In object model we say, methods are public. What > does "public" mean here? > thanks > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > >

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Re: [Pharo-users] Question about pharo's object model
by Ben Coman Nov. 15, 2018

Nov. 15, 2018

Generically across programming languages... - a private method can only me invoked by an object of the same class (or subclass) i.e. it can only be invoked by itself. - a public method can be invoked from any object. In Pharo, variables are private and methods are public. The advantage of private methods is to avoid users calling utility methods that only do half the work to leave data in a consistent state. Also its clear which methods are outside you public API so you are free you change those without impacting users. Rather than such a forced constrint, Pharo deals with private methods by convention: - prepending "private" or "basic" to the front of the method name - placing methods into a protocol (or method category) named "private". - having a protocol "api" for the public api and everything else to be considered private Note that "protocols" have no impact on program execution - they are just an organisational tool. All reflects Pharo philosophy... Reduced forced constraints making it quicker and easier to program "in the flow" i.e. you "can" break convention and call "private" methods if that is pragmatic and you are willing to accept the risk that you don't properly comprehend the behavior or the behaviour changes later without warning. cheers -ben On Thu, 15 Nov 2018 at 12:44, iu136 via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > hello guys > I'm new to programming, I started programming using pharo, I had a question > about pharo's object model. In object model we say, methods are public. > What > does "public" mean here? > thanks > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > >

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