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Re: [Pharo-users] how to test, if the class has "shared identity" of instances in the whole image (SmallIntegers, Symbols...)

by Richard O'Keefe

It is not clear to me what the semantics of such a selector would be. Consider this example: t := [:x | x copy == x]. a := t value: 1.0e38. b := t value: 1.0e308. What do you expect a and b to be? GNU Smalltalk: a=true, b=true. My Smalltalk, 32-bit or 64-bit: a=true, b=true. Squeak/Pharo, 32-bit: a=false, b=false. Squeak/Pharo, 64-bit: a=true, b=false. Squeak/Pharo, after a patch: a=true, b=true. There are two quite different reasons why x copy == x might be true: * x is immutable (including its parts), and can be thought of as a mathematical value, so that there is no need to copy it Examples: every kind of number, characters, booleans, immutable collections, block closures * x is a way of accessing a unique resource, and should not be copied, so making copy the identity is a safety measure. Examples: Semaphores, Mutexes, SharedQueues, data base connections, some kinds of streams, singletons. * Laziness or error (inherited method not revised). What is your use case? On Thu, 21 Feb 2019 at 07:32, Petr Fischer via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > Hello, some classes, like Symbols or SmallIntegers, shares identity of > value instances in the whole image (I may say it wrong), so: > > 1 == 1 copy. [true] > #aaa == #aaa copy. [true] > > all other classes not, like Strings, Objects etc., so: > > 'aaa' == 'aaa' copy. [false] > > Is there any test method (maybe on the class side) I could ask for this > (isXXX)? > > Thanks! pf > >

Feb. 20, 2019

Re: [Pharo-users] How do you easily re-categorise methods in Calypso?

by Tim Mackinnon

No problem Denis - Iâm ready to dip a toe in on things like this. I just wanted to make sure I wasnât missing something or stick in old habits. Just tried a simple fix today and discovered itâs in the Calypso code - so need to get my fork sorted again. Tim Sent from my iPhone > On 20 Feb 2019, at 19:21, Denis Kudriashov <dionisiydk(a)gmail.com> wrote: > > Hi Tim. > > It needs to be improved. > I simply reused the choose dialog from add protocol command because the change protocol dialog was the part of Nautilus. > > Ð²Ñ, 19 ÑÐµÐ²Ñ. 2019 Ð³., 15:06 Tim Mackinnon tim(a)testit.works: >> Hi - Iâm scratching my head over how to easily re-caegorise methods in calypso? Iâve overridden some methods in subclasses and picked up the wrong category (which the critic is slapping me for). >> >> But when I click on the method - I canât drag it to the new category, so if I click on the pencil in the status line (or the current category name - not sure why they are independently clickable?) - it shows me a rather unhelpful list of protocols. Iâm not sure where this list comes from as it doesnât seem to include any of the protocols that are already in the class? (and those which I want to use?). So I have to start typing âaccesâ and can click on accessingâ¦ >> >> Am I missing a simple trick - or is this an area that needs some work?

Feb. 20, 2019

Re: [Pharo-users] How do you easily re-categorise methods in Calypso?

by Denis Kudriashov

Hi Tim. It needs to be improved. I simply reused the choose dialog from add protocol command because the change protocol dialog was the part of Nautilus. Ð²Ñ, 19 ÑÐµÐ²Ñ. 2019 Ð³., 15:06 Tim Mackinnon tim(a)testit.works: > Hi - Iâm scratching my head over how to easily re-caegorise methods in > calypso? Iâve overridden some methods in subclasses and picked up the wrong > category (which the critic is slapping me for). > > But when I click on the method - I canât drag it to the new category, so > if I click on the pencil in the status line (or the current category name - > not sure why they are independently clickable?) - it shows me a rather > unhelpful list of protocols. Iâm not sure where this list comes from as it > doesnât seem to include any of the protocols that are already in the class? > (and those which I want to use?). So I have to start typing âaccesâ and can > click on accessingâ¦ > > Am I missing a simple trick - or is this an area that needs some work? >

Feb. 20, 2019

Re: [Pharo-users] Pharo general questions for a commercial application

by ducasse

> On 20 Feb 2019, at 17:23, BrunoBB <smalltalk(a)adinet.com.uy> wrote: > > Hi Esteban, > > Nice to see you here too... > > The web application will run Linux 64bits, the Pharo 64bits for Linux is > stable or i should use a 32bit VM ? > > Thanks for all the information slowly but surely we will implement this app. > > Also it seems that Pharo has a very active community !!! It is :) > > regards, > bruno > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >

Feb. 20, 2019

how to test, if the class has "shared identity" of instances in the whole image (SmallIntegers, Symbols...)

by Petr Fischer

Hello, some classes, like Symbols or SmallIntegers, shares identity of value instances in the whole image (I may say it wrong), so: 1 == 1 copy. [true] #aaa == #aaa copy. [true] all other classes not, like Strings, Objects etc., so: 'aaa' == 'aaa' copy. [false] Is there any test method (maybe on the class side) I could ask for this (isXXX)? Thanks! pf

Feb. 20, 2019

Re: [Pharo-users] Pharo general questions for a commercial application

by Sven Van Caekenberghe

Pharo 7/8 is 64-bits by default on macOS and Linux, no problems there. > On 20 Feb 2019, at 17:23, BrunoBB <smalltalk(a)adinet.com.uy> wrote: > > Hi Esteban, > > Nice to see you here too... > > The web application will run Linux 64bits, the Pharo 64bits for Linux is > stable or i should use a 32bit VM ? > > Thanks for all the information slowly but surely we will implement this app. > > Also it seems that Pharo has a very active community !!! > > regards, > bruno > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >

Feb. 20, 2019

Re: [Pharo-users] Pharo general questions for a commercial application

by BrunoBB

Hi Esteban, Nice to see you here too... The web application will run Linux 64bits, the Pharo 64bits for Linux is stable or i should use a 32bit VM ? Thanks for all the information slowly but surely we will implement this app. Also it seems that Pharo has a very active community !!! regards, bruno -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 20, 2019

Re: [Pharo-users] How to load a single package in a Metacello baseline

by Sean P. DeNigris

Tim Mackinnon wrote > Yeah - I have a similar issue with ExternalWebBrowser... that drags in... > [a] huge raft of tests My workflow is to make every project one monolithic package until the need to do otherwise is presented (like right now!). I used to carefully think about theoretical use case scenarios and split projects up along those lines, but management (especially with the tooling available at that time) seemed to explode exponentially, so I went monolithic. After several years of experience, this is the first time someone expressed a pain point (that I remember anyway)! This seems to validate the current approach and my suspicion that preemptively creating multiple packages is akin to premature optimization. Tim Mackinnon wrote > I think what we have to do is submit pull requests to these projects such > that they create better baselines with Groups Yes! I will happily integrate. The tests may need to be promoted to a package if they are currently in a tag, but 'Core' without and 'Tests' with seems appropriate given your issue. I don't have a strong opinion on the default but my guess is to leave it as is (i.e. all packages) because newbies will get the tests (i.e. documentation) and advanced users will know enough to customize. ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 20, 2019

Re: [Pharo-users] Pharo general questions for a commercial application

by Eric Gade

> > 2) For RDBMS forget about DBXTalk and Garage, I would suggest you go > straight to the PostgreSQL client (P3) or SQLite. Those are maintained and > used, the rest... who knows. > If you need ORM you can use Glorp with any of those. > What about MySQL connectors -- is anyone in the community using this, and what are the most up to date packages? Also I think we should add a DBs section to the Pharo Open Documentation <https://github.com/pharo-open-documentation/pharo-wiki>(based on this email exchange).

Feb. 20, 2019

Re: [Pharo-users] Pharo general questions for a commercial application

by Esteban Maringolo

Hi Bruno, Is good to see you here as well :) 1) 7.0+. If you're in Windows only 32 bit is supported. 2) For RDBMS forget about DBXTalk and Garage, I would suggest you go straight to the PostgreSQL client (P3) or SQLite. Those are maintained and used, the rest... who knows. If you need ORM you can use Glorp with any of those. 3) As Sven mentioned there are many options, there is people using Docker containers managed by Docker Swarm, so the options are many. But if you use Seaside with stateful sessions (you'll need affinity by session or IP). Regards, Esteban A. Maringolo El mar., 19 feb. 2019 a las 22:27, BrunoBB (<smalltalk(a)adinet.com.uy>) escribiÃ³: > Hi, > > My name is Bruno i'been using Smalltalk since 1999 for commercial > applications, mostly Dolphin, GemStone/S and Visual Works. > > Now we have a commercial project and we are going to use Pharo :) > > So we have some general questions. > > 1) Which version of Pharo to use in a production deployment 6.1 or 7.0 ? > > 2) We need a local database to Pharo app, which open source database is > better to use with Pharo: mysql, postgree or .... In term of packages for > Pharo. > There is https://guillep.github.io/DBXTalk/ but i do not know if is up to > date. > > 3) There is any documentation about deployment and maintenance for a Pharo > + > Seaside app ? > I have found "2016-10-06-EnterprisePharo.pdf" but may there are other > sources... > > regards, > bruno > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > >

Feb. 20, 2019