November 2018 - Pharo-users

Re: [Pharo-users] Question about pharo's object model

by Ben Coman

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 > >

Nov. 15, 2018

Question about pharo's object model

by iu136

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

Nov. 15, 2018

VW2Pharo ? (Was: Pharo2VW (Was:[vwnc] Parsing in Smalltalk))

by CÃ©drick BÃ©ler

> 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---> >>>> >>> >>> >> >> >> > > > >

Nov. 14, 2018

[ANN] Camp Smalltalk 2019 in Charlotte, NC

by Mariano Martinez Peck

Greetings Fellow Smalltalkers, We would like to invite you to Camp Smalltalk, March 29th â March 31st 2019 in Charlotte, North Carolina. Event details and registration info are available at the following link: Camp Smalltalk Charlotte 2019 <https://www.eventbrite.com/e/camp-smalltalk-charlotte-2019-tickets-52380940…> Hope to see you there! -- Mariano

Nov. 14, 2018

Re: [Pharo-users] [Pharo-dev] [ANN] Pharo v7.0.0-rc1 released!

by Guillermo Polito

On Wed, Nov 14, 2018 at 4:26 PM Vitor Medina Cruz <vitormcruz(a)gmail.com> wrote: > Guillermo, deleting the VM worked. :) > cool! > > Newer version of PharoLauncher can update the VM when necessary? I > remember I updated it about two months ago. > Well, there is a version in the development branch (1.5.*) that has a VM manager and has an option to update VMs and so on... It requires for sure some more testing, because too many things happened in the middle: - migration of sources to git - re-adapting the CI - several changes in the UI - added the VM manager - several bugfixes Also in the middle we had to deal with some patches to the 1.4.* version, and then forward-port them to the new version. And we are too busy with other stuff so no time to push this version :/. If somebody wants to help testing/developing/checking it, the latest development version is here: http://files.pharo.org/pharo-launcher/2e0aa49/ The downloaded app does not launch the launcher by default, it has to be done from a playground (PharoLauncher open). Here is a preview screenshot showing some of the visual changes into it: [image: image.png] Cheers, Guille

Nov. 14, 2018

Re: [Pharo-users] [Pharo-dev] [ANN] Pharo v7.0.0-rc1 released!

by Vitor Medina Cruz

Guillermo, deleting the VM worked. :) Newer version of PharoLauncher can update the VM when necessary? I remember I updated it about two months ago. On Wed, Nov 14, 2018 at 12:57 PM Guillermo Polito <guillermopolito(a)gmail.com> wrote: > > On Wed, Nov 14, 2018 at 3:50 PM Baveco, Hans <hans.baveco(a)wur.nl> wrote: > >> On windows 7 the 32bits version opens with an error: âPrimitiveFailed: >> primitive #fileDescriptorType: in File class failed.â >> >> When discarding the error and saving & quitting the image, subsequent >> startups (via the launcher) do not display the gui anymore... >> >> Hans >> > > Hi Hans, > > This problem was already reported in the past. > You're probably using an old version of the launcher, that has an old > version of the VM. > > Quick solution: go where the launcher stores the VMs and remove the one of > Pharo7. Next time you start a Pharo7 the launcher will download an updated > one. > > Guille >

Nov. 14, 2018

Re: [Pharo-users] [Pharo-dev] [ANN] Pharo v7.0.0-rc1 released!

by Guillermo Polito

On Wed, Nov 14, 2018 at 3:50 PM Baveco, Hans <hans.baveco(a)wur.nl> wrote: > On windows 7 the 32bits version opens with an error: âPrimitiveFailed: > primitive #fileDescriptorType: in File class failed.â > > When discarding the error and saving & quitting the image, subsequent > startups (via the launcher) do not display the gui anymore... > > Hans > Hi Hans, This problem was already reported in the past. You're probably using an old version of the launcher, that has an old version of the VM. Quick solution: go where the launcher stores the VMs and remove the one of Pharo7. Next time you start a Pharo7 the launcher will download an updated one. Guille

Nov. 14, 2018

Re: [Pharo-users] [Pharo-dev] [ANN] Pharo v7.0.0-rc1 released!

by Alistair Grant

Hi Hans, On Wed, 14 Nov 2018 at 15:50, Baveco, Hans <hans.baveco(a)wur.nl> wrote: > > On windows 7 the 32bits version opens with an error: âPrimitiveFailed: primitive #fileDescriptorType: in File class failed.â > > When discarding the error and saving & quitting the image, subsequent startups (via the launcher) do not display the gui anymore... > > Hans This is a different, known issue. Your VM is out of date. If you're using PharoLauncher I think you can just delete the VM directories and start again (I don't use PharoLauncher, so someone else may correct me). Cheers, Alistair

Nov. 14, 2018

Re: [Pharo-users] [Pharo-dev] [ANN] Pharo v7.0.0-rc1 released!

by Sven Van Caekenberghe

Do you (does the pharo vm) have full read/write access to its .changes and .sources file (in the directory where they are stored) ? > On 14 Nov 2018, at 15:50, Baveco, Hans <hans.baveco(a)wur.nl> wrote: > > On windows 7 the 32bits version opens with an error: âPrimitiveFailed: primitive #fileDescriptorType: in File class failed.â > When discarding the error and saving & quitting the image, subsequent startups (via the launcher) do not display the gui anymore... > Hans > > > From: Vitor Medina Cruz <vitormcruz(a)gmail.com> > Sent: woensdag 14 november 2018 14:35 > To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> > Cc: Pharo Development List <pharo-dev(a)lists.pharo.org> > Subject: Re: [Pharo-users] [Pharo-dev] [ANN] Pharo v7.0.0-rc1 released! > > Got instant red crossed welcome window on windows 7 64bits with the Pharo 7 64 bits: "Error: Instances of SourceFileArray are not indexable". I will try on a windows 10 version later. > > 32bits version open up ok, will see how it behaves. > > regards, > Vitor. > > > > On Wed, Nov 7, 2018 at 6:43 AM Tudor Girba <tudor(a)tudorgirba.com> wrote: > Excellent! > > Doru > > > > On Nov 5, 2018, at 4:11 PM, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > > > > Greetings! > > > > Iâm announcing today we reach Pharo 7.0.0-rc1! > > > > This is the first step to release a definitive version, and while we will continue integrating bug fixes, API change Pull Requests will be delayed until the open of Pharo 8.0.0 development. > > Now, you would wonder what is the ChangeLog of this releaseâ¦ and answer is we still do not have one (btw, we should find a way to automate this). > > > > Anywayâ¦ we are very close to release now :) > > > > Please download, test, report issues. > > > > Esteban > > -- > www.feenk.com > > "Speaking louder won't make the point worthier." >

Nov. 14, 2018

Re: [Pharo-users] [Pharo-dev] [ANN] Pharo v7.0.0-rc1 released!

by Baveco, Hans

On windows 7 the 32bits version opens with an error: âPrimitiveFailed: primitive #fileDescriptorType: in File class failed.â When discarding the error and saving & quitting the image, subsequent startups (via the launcher) do not display the gui anymore... Hans From: Vitor Medina Cruz <vitormcruz(a)gmail.com> Sent: woensdag 14 november 2018 14:35 To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> Cc: Pharo Development List <pharo-dev(a)lists.pharo.org> Subject: Re: [Pharo-users] [Pharo-dev] [ANN] Pharo v7.0.0-rc1 released! Got instant red crossed welcome window on windows 7 64bits with the Pharo 7 64 bits: "Error: Instances of SourceFileArray are not indexable". I will try on a windows 10 version later. 32bits version open up ok, will see how it behaves. regards, Vitor. On Wed, Nov 7, 2018 at 6:43 AM Tudor Girba <tudor(a)tudorgirba.com<mailto:tudor@tudorgirba.com>> wrote: Excellent! Doru > On Nov 5, 2018, at 4:11 PM, Esteban Lorenzano <estebanlm(a)gmail.com<mailto:estebanlm@gmail.com>> wrote: > > Greetings! > > Iâm announcing today we reach Pharo 7.0.0-rc1! > > This is the first step to release a definitive version, and while we will continue integrating bug fixes, API change Pull Requests will be delayed until the open of Pharo 8.0.0 development. > Now, you would wonder what is the ChangeLog of this releaseâ¦ and answer is we still do not have one (btw, we should find a way to automate this). > > Anywayâ¦ we are very close to release now :) > > Please download, test, report issues. > > Esteban -- www.feenk.com<http://www.feenk.com> "Speaking louder won't make the point worthier."

Nov. 14, 2018