June 2015 - Pharo-users - lists.pharo.org

Re: [Pharo-users] loading Coral from SmalltalkHub

by Ben Coman

On Sun, Jun 7, 2015 at 7:54 PM, Francisco Garau <francisco.garau(a)gmail.com> wrote: > Hi Ben, > > Thanks for your comments. There's another aspect of the syntax changes I am > playing with. The intention is to make more evident the relationship between > objects and closures as they could be implemented in terms of each other > (see below article from Vassily on the subject). > > http://live.exept.de/doc/online/english/programming/humor.html I'm lost. It seems to me that Vassily's response is a contrived example to get rid of Objects. The url does indicate humour. > >> >> Your ideas below regarding method definition is interesting, but this >> class definition seems problematic. >> >> > [Point: Object | >> > | x y | > > > I've removed passing the superclass as an argument, that was a mistake. > Now a more complete example would be written as: > > [Generator: initialValue | > | currentValue | > currentValue := initialValue. > [reset | currentValue := 0 ]. > [next | > currentValue := currentValue + 1. > ^currentValue]. > reset category: 'accessing'. > next category: 'accessing'. > ]. > myGen := Generator: 5. It seems this is how you are creating an instance, and you would be constrained to have only one way to create an instance. How would you handle having two ways to create an instance. For example... Point class >> r:degrees: Point class >> x:y: > myGen next = 6. > myGen reset = 0. > myGen next = 1. > > > To highlight that the blocks defining the methods wouldn't be thrown away, > I've added a couple of categorization methods. When are these categorization methods executed? It seems that the "currentValue := initialValue" line might meant be executed each time an instance is created. In that case the two #category message sends would seem to also be sent at each instance creation ??? > Notice how close is that from a valid implementation using plain blocks in > regular Smalltalk. Almost identical if you ignore the method lookup > resolution which is obviously missing from blocks. Sorry its not obvious. I don't understand that last statement. What would this missing part look like? Maybe part of the problem is I can't help reading the above syntax as blocks, even if they are named blocks aka methods. Sorry its just how I'm wired, and I haven't even been doing Smalltalk long. I found the following example really hard to follow, and I could not do it just reading it. I had to evaluate it piecemeal and inspect each step. Would such a thing ever be used in practice? It strikes me as failing Brian Kernighan's rule: "Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it." So I feel its not a good justification to replace this with your new syntax. Do you have another? > > generatorClass := [:initialValue | > | currentValue | > currentValue := initialValue. > Array > with: [ currentValue := 0 ] > with: [ currentValue := currentValue + 1 ]. > ]. > > myGen := generatorClass value: 5. > myGen last value = 6. > myGen first value = 0. > myGen last value = 1. >

June 7, 2015

Re: [Pharo-users] [Pharo-dev] Pharo on bitnami

by Norbert Hartl

Could be something good. I wanted to figure out what is to provide but I didn't find anything useful in all this massive amount of marketing bullshit on their site. Do you really contact them before you can see how you can provide a package? Norbert > Am 07.06.2015 um 13:08 schrieb stepharo <stepharo(a)free.fr>: > > Hi pharoers > > we got in contact with bitnami and I would love to see two bitnami apps around Pharo: > - basic pharo > - pharo + seaside + magritte + voyage (mongo pharo layer) + mongodb > > So who would like to help pushing this effort? > > Stef > > Begin forwarded message: > > From: Kevin Franklin <kevin(a)bitnami.com> > Subject: Introducing Bitnami... > Date: 5 Jun 2015 10:57:36 GMT+2 > To: <board(a)pharo.org> > > Hello Pharo Association > > I wondered if you knew about Bitnami. Please check us out at www.bitnami.com. We provide over 120 apps and development stacks â many of them open-source. > If you would like Pharo to be included in our marketplace, we have a contest https://bitnami.com/contest were you can nominate it, and encourage your community to vote for its inclusion. > > Also, I wondered if you could put me in touch with any commercial companies within and around the Pharo ecosystem that might like to work with us as a software partner https://bitnami.com/partners/software > > Kind regards > Kevin > > -- > Kevin Franklin > Director of Business Development, Bitnami > +44 78 2525 6020 > @kevinjfranklin > > Run your favorite apps in the cloud with Bitnami > > Confidential - All Rights Reserved. > Bitnami Â© 2015 >

June 7, 2015

Re: [Pharo-users] Using Spotter

by Alexandre Bergel

Thanks Juraj and Doru! It is now clearer Cheers, Alexandre > On Jun 7, 2015, at 9:00 AM, Tudor Girba <tudor(a)tudorgirba.com> wrote: > > At the moment, the only way to do that is to use diving. RT*Zoom means: RT and Zoom. So, you can: > - filter by Zoon, > - dive in category (Cmd+Shift+Right) > - then filter by RT > > Again, it is not necessarily convenient. In this first iteration, the goal was to produce something that is fast and composable. In the next iteration we should learn what works and what does not. And this use case is certainly one thing that seems to be expected. > > Cheers, > Doru > > > > > On Sun, Jun 7, 2015 at 1:38 PM, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: > Hi! > > If in spotter: > 1- enter: Roassal2 #p > 2- select: Roassal2 and press cmd -> > 3- enter: Zoom > Then I see all the classes that belongs to Roassal that have the word Zoom in them. > > The question I have is: how can I look for all the classes having Zoom in their name and begins with the prefix âRTâ? I have tried âRT*Zoom*â. I remember Juraj showed me a way to do this, but I forgotâ¦ > > Cheers, > Alexandre > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > > > > > -- > www.tudorgirba.com > > "Every thing has its own flow" -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

June 7, 2015

Re: [Pharo-users] Pharo-users Digest, Vol 26, Issue 33

by Serge Stinckwich

Dear Karim, if you want to create a method class you have to select a class in a System Browser and click on the radiobutton "Class side". Regards, 2015-06-07 14:30 GMT+02:00 karim abakar <karim.abakar(a)gmail.com>: > bonjour, est ce que quelqu'un peut m'expliquer comment declarer une > methode de classe(je dis bien methode de classe pas d'instance) en > pharo. MerÃ§i et bon weekend > -- Serge Stinckwich UCBN & UMI UMMISCO 209 (IRD/UPMC) Every DSL ends up being Smalltalk http://www.doesnotunderstand.org/

June 7, 2015

Re: [Pharo-users] Pharo-users Digest, Vol 26, Issue 33

by karim abakar

bonjour, est ce que quelqu'un peut m'expliquer comment declarer une methode de classe(je dis bien methode de classe pas d'instance) en pharo. MerÃ§i et bon weekend

June 7, 2015

Re: [Pharo-users] Using Spotter

by Juraj Kubelka

Hi, you need to 1. write Roassal2 #p 2. select Roassal2 package and dive-in element by pressing cmd+-> 3. write Zoom, 4. dive-in category by pressing cmd+shift+-> 5 write RT Composed queries (e.g., âRT*Zoomâ, âRT Zoomâ) are not supported now, but certainly it is something we will improve. Cheers, Juraj > 7. 6. 2015 v 8:38, Alexandre Bergel <alexandre.bergel(a)me.com>: > > Hi! > > If in spotter: > 1- enter: Roassal2 #p > 2- select: Roassal2 and press cmd -> > 3- enter: Zoom > Then I see all the classes that belongs to Roassal that have the word Zoom in them. > > The question I have is: how can I look for all the classes having Zoom in their name and begins with the prefix âRTâ? I have tried âRT*Zoom*â. I remember Juraj showed me a way to do this, but I forgotâ¦ > > Cheers, > Alexandre > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > >

June 7, 2015

Re: [Pharo-users] Using Spotter

by Tudor Girba

At the moment, the only way to do that is to use diving. RT*Zoom means: RT and Zoom. So, you can: - filter by Zoon, - dive in category (Cmd+Shift+Right) - then filter by RT Again, it is not necessarily convenient. In this first iteration, the goal was to produce something that is fast and composable. In the next iteration we should learn what works and what does not. And this use case is certainly one thing that seems to be expected. Cheers, Doru On Sun, Jun 7, 2015 at 1:38 PM, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: > Hi! > > If in spotter: > 1- enter: Roassal2 #p > 2- select: Roassal2 and press cmd -> > 3- enter: Zoom > Then I see all the classes that belongs to Roassal that have the word Zoom > in them. > > The question I have is: how can I look for all the classes having Zoom in > their name and begins with the prefix âRTâ? I have tried âRT*Zoom*â. I > remember Juraj showed me a way to do this, but I forgotâ¦ > > Cheers, > Alexandre > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > > -- www.tudorgirba.com "Every thing has its own flow"

June 7, 2015

Re: [Pharo-users] loading Coral from SmalltalkHub

by Francisco Garau

Hi Ben, Thanks for your comments. There's another aspect of the syntax changes I am playing with. The intention is to make more evident the relationship between objects and closures as they could be implemented in terms of each other (see below article from Vassily on the subject). http://live.exept.de/doc/online/english/programming/humor.html > Your ideas below regarding method definition is interesting, but this > class definition seems problematic. > > > [Point: Object | > > | x y | I've removed passing the superclass as an argument, that was a mistake. Now a more complete example would be written as: [Generator: initialValue | | currentValue | currentValue := initialValue. [reset | currentValue := 0 ]. [next | currentValue := currentValue + 1. ^currentValue]. reset category: 'accessing'. next category: 'accesing'. ]. myGen := Generator: 5. myGen next = 6. myGen reset = 0. myGen next = 1. To highlight that the blocks defining the methods wouldn't be thrown away, I've added a couple of categorization methods. Notice how close is that from a valid implementation using plain blocks in regular Smalltalk. Almost identical if you ignore the method lookup resolution which is obviously missing from blocks. generatorClass := [:initialValue | | currentValue | currentValue := initialValue. Array with: [ currentValue := 0 ] with: [ currentValue := currentValue + 1 ]. ]. myGen := generatorClass value: 5. myGen last value = 6. myGen first value = 0. myGen last value = 1.

June 7, 2015

Re: [Pharo-users] Pharo on bitnami

by Marcus Kemper

Hi Stef, Pharo is not in the list right now, isn't it? Best regards Marcus stepharo <stepharo(a)free.fr> schrieb am So., 7. Juni 2015 13:09: > Hi pharoers > > we got in contact with bitnami and I would love to see two bitnami apps > around Pharo: > - basic pharo > - pharo + seaside + magritte + voyage (mongo pharo layer) + > mongodb > > So who would like to help pushing this effort? > > Stef > > Begin forwarded message: > > From: Kevin Franklin <kevin(a)bitnami.com> > Subject: Introducing Bitnami... > Date: 5 Jun 2015 10:57:36 GMT+2 > To: <board(a)pharo.org> > > Hello Pharo Association > > I wondered if you knew about Bitnami. Please check us out at > www.bitnami.com. We provide over 120 apps and development stacks â many > of them open-source. > If you would like Pharo to be included in our marketplace, we have a > contest https://bitnami.com/contest were you can nominate it, and > encourage your community to vote for its inclusion. > > Also, I wondered if you could put me in touch with any commercial > companies within and around the Pharo ecosystem that might like to work > with us as a software partner https://bitnami.com/partners/software > > Kind regards > Kevin > > -- > Kevin Franklin > Director of Business Development, Bitnami > +44 78 2525 6020 > @kevinjfranklin > > Run your favorite apps in the cloud with Bitnami > > Confidential - All Rights Reserved. > Bitnami Â© 2015 > >

June 7, 2015

Using Spotter

by Alexandre Bergel

Hi! If in spotter: 1- enter: Roassal2 #p 2- select: Roassal2 and press cmd -> 3- enter: Zoom Then I see all the classes that belongs to Roassal that have the word Zoom in them. The question I have is: how can I look for all the classes having Zoom in their name and begins with the prefix âRTâ? I have tried âRT*Zoom*â. I remember Juraj showed me a way to do this, but I forgotâ¦ Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

June 7, 2015