February 2019 - Pharo-users

Re: [Pharo-users] How to intercept instvar write - MetaLinks + anonymous subclass problem

by Marcus Denker

> > Thanks for answer! I want to detect instvar writes only for objects (instances), that was previously fetched from external "datastore" (DB like), so I can persist changed objects only back to the datastore at the end of transaction. These objects can be any existing class (Pharo classes, some 3rd party libs classes, everything), so 1) injecting a class is overkill (affects all objects in the image) 2) impossible to rewrite #class method for every existing class. > > Injecting object-centric metalinks via anonymous subclass breaks up many things, when I want to treat injected object like any othres (IMHO). > > If you will be able to avoid this issue, that would be extra cool :-] > > Note: for now, best for my "instvar writes detection" would be probably hack Object>>#attemptToAssign:withIndex: or ProtoObject>>#modificationForbiddenFor:index:value: and make my "datastore fetched objects" read only (via Object>>#setIsReadOnlyObject:). > The read-only approach has the nice property that it works for collections, too. The meta-link model falls short there (you can not âput a link on offset 4 in this arrayâ, but would need to put it on at:put:) I started to play with it to see what is needed to create a generalised change detector with read only: https://github.com/MarcusDenker/ChangeDetector Marcus

Feb. 5, 2019

Re: [Pharo-users] Slots doc

by Marcus Denker

>>> > > Slots are already part of Pharo and are totally useable. > Some example slots are buggy though. > Yes, I have a list of issues to fix. Especially related to instance migration when changing class definitions. (among others). I sometimes wonder how to find the concentrate time to really looks as all this.. there is already so much todo... > Explore Slot and subclasses, their class comments and methods. > > One thing to note is if you change #emitStore: or #emitValue: methods in > your slot class, you need to trigger change in classes that use it. > > Yes, we need to recompile method that use slots with code generation if the code gen methods change. I think there should be even a way to do that automatically. Marcus

Feb. 5, 2019

Re: [Pharo-users] Running test

by john pfersich

On MaxOS Mojave, the bundle is corrupt [image: Screen Shot 2019-02-05 at 01.20.41.png] On Tue, Feb 5, 2019 at 1:04 AM eftomi <tomaz.turk(a)ef.uni-lj.si> wrote: > It works fine on Win 10 Pro (Version 10.0.17134 Build 17134). > > Tomaz > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > >

Feb. 5, 2019

Re: [Pharo-users] Running test

by eftomi

It works fine on Win 10 Pro (Version 10.0.17134 Build 17134). Tomaz -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 5, 2019

Re: [Pharo-users] Why DirectoryIsNotEmpty on FileReference>>deleteAll ?

by Alistair Grant

Hi Albrecht, On Fri, 1 Feb 2019 at 19:50, Albrecht Baur via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > I get a DirectoryIsNotEmpty exception on > FileReference(AbstractFileReference)>>deleteAll. Would you please confirm which version of the VM and Pharo you're using? (copy the output of System -> System Reporter default page) Thanks, Alistair

Feb. 5, 2019

Re: [Pharo-users] Github pharo-* organizations

by Esteban Lorenzano

Hi, Naming the teams âpharo-somethingâ was kind of my idea to improve visibility of pharo. This has been followed by others which means we do not know all organisations nor all pharo contributions are made under a pharo-something team (in fact the less of them). We have in our TODO a new version of the catalog that will be âGitHub basedâ to group all projects. To find projects in GitHub, I have some queries: Tonel/filetree repositories (in .properties): https://github.com/search?q=%22%23format+%3A+%23tonel%22+in%3Afile&type=Code <https://github.com/search?q=%22#format+:+#tonel"+in:file&type=Code> https://github.com/search?q=%22%23format+%3A+%23filetree%22+in%3Afile&type=… <https://github.com/search?q=%22#format+:+#tonel"+in:file&type=Code> Filetree repositories: https://github.com/search?q=.filetree+in%3Apath&type=Code <https://github.com/search?q=.filetree+in:path&type=Code> (Lots of this ones) We should build some tooling around this, Iâm quite sure is possible to do a lot more. Esteban > On 5 Feb 2019, at 02:42, Pierce Ng <pierce(a)samadhiweb.com> wrote: > > Hi all, > > Is there a definitive list of all the pharo-* organizations on GH? Like > pharo-rdbms, pharo-nosql, pharo-vcs, ... Or, a way to query GH to find out? > > Pierce >

Feb. 5, 2019

Re: [Pharo-users] Non-greedy RegEx?

by Thierry Goubier

The Regex engine inside SmaCC allows for non-greedy REs. But it's integrated as a parser first stage, not as an independent RE engine. Regards, Thierry Le mar. 5 fÃ©vr. 2019 Ã 08:34, Esteban Lorenzano <estebanlm(a)gmail.com> a Ã©crit : > > Hi, > > Yes, Pharo regex implementation is very naive. > We will be moving to a PCRE binding to match outside world standards but we have not had the time to work on it :( > > Esteban > > > On 5 Feb 2019, at 00:27, Manuel Leuenberger <leuenberger(a)inf.unibe.ch> wrote: > > > > Hi, > > > > I just noticed that the Pharo regexes do not understand non-greedy matches. A regex engine to be PCRE is kind of essential, not having '.*?' to be a parseable and working regex is a bummer. Are there any more powerful regex engines around for Pharo? I could not find any. > > > > Cheers, > > Manuel > > > > > >

Feb. 5, 2019

Re: [Pharo-users] Non-greedy RegEx?

by Esteban Lorenzano

Hi, Yes, Pharo regex implementation is very naive. We will be moving to a PCRE binding to match outside world standards but we have not had the time to work on it :( Esteban > On 5 Feb 2019, at 00:27, Manuel Leuenberger <leuenberger(a)inf.unibe.ch> wrote: > > Hi, > > I just noticed that the Pharo regexes do not understand non-greedy matches. A regex engine to be PCRE is kind of essential, not having '.*?' to be a parseable and working regex is a bummer. Are there any more powerful regex engines around for Pharo? I could not find any. > > Cheers, > Manuel > >

Feb. 5, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by magicspeller

Ben Coman wrote > On Mon, 4 Feb 2019 at 01:58, magicspeller < > pharo@ > > wrote: > >> I just discovered the window tabs >> at the bottom as well, which would have helped if I'd thought to look >> there. >> >> Hope I didn't cause anyone a lot of frustration. >> >> In a way, I am glad I posed the question, because I have learned a lot in >> the ensuing discussion. I'll respond to a couple of the new replies, but >> thank you, everyone, very, very much. >> > > How would you feel about stretching that learning to submit a PR > updating that text to indicate a window will open? Sorry, Ben, you lost me. What's a PR? Updated what text? Can you please give me an explanation an idiot (me) can understand? Thanks, Keith -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 5, 2019

Re: [Pharo-users] Github pharo-* organizations

by HernÃ¡n Morales Durand

Hi Pierce, I am currently writing a command-line tool which queries pharo repositories using the GitHub API, and based on the repository tag. Maybe not exactly what you asked for but it's a start. You can find the tool at: https://github.com/hernanmd/pi Cheers, HernÃ¡n El lun., 4 feb. 2019 a las 22:43, Pierce Ng (<pierce(a)samadhiweb.com>) escribiÃ³: > Hi all, > > Is there a definitive list of all the pharo-* organizations on GH? Like > pharo-rdbms, pharo-nosql, pharo-vcs, ... Or, a way to query GH to find out? > > Pierce > >

Feb. 5, 2019