- Pharo-users - lists.pharo.org

Re: [Pharo-users] A "with" construct like Pascal - easy to do, but is it terrible?

by Herby VojÄÃk

On 4. 3. 2019 14:15, Esteban Maringolo wrote: > Well... you have the cascading that provides you that. > > book1 > title:'C Programming'; > author: 'Nuha Ali '; > subject: 'C Programming Tutorial'; > book_id: 6495407. > > What I would like, sometimes, is the option to nest cascades, very > much like the WITH DO construct of Pascal, Basic and others. Shameless plug: https://blog.herby.sk/post/customizing-cascade. Some year(s) ago I did a poll in twitter in ppl would like this in Amber. It was 5 for, 5 against. Herby > > But also I take this as a hint of some refactoring needed in my objects. > > Regards, > > Esteban A. Maringolo

March 4, 2019

Re: [Pharo-users] A "with" construct like Pascal - easy to do, but is it terrible?

by Tim Mackinnon

> On 4 Mar 2019, at 13:59, Christian Haider <christian.haider(a)smalltalked-visuals.com> wrote: > > Or #ifNotNil: When you are in the right mindset - lots of things come out of the wood work...

March 4, 2019

Re: [Pharo-users] A "with" construct like Pascal - easy to do, but is it terrible?

by Tim Mackinnon

> On 4 Mar 2019, at 13:34, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > There is #in: that does exactly that: Classic - it was there - you just needed to get the name right. thanks.

March 4, 2019

Re: [Pharo-users] A "with" construct like Pascal - easy to do, but is it terrible?

by Christian Haider

Or #ifNotNil: class metaclass ifNotNil: [ :metaclass | metaclass xxx. metaclass yyy ]. With the added benefit to not do anything with nil. Christian > -----UrsprÃ¼ngliche Nachricht----- > Von: Pharo-users <pharo-users-bounces(a)lists.pharo.org> Im Auftrag von > Sven Van Caekenberghe > Gesendet: Montag, 4. MÃ¤rz 2019 14:35 > An: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> > Betreff: Re: [Pharo-users] A "with" construct like Pascal - easy to do, but is it > terrible? > > There is #in: that does exactly that: > > class metaclass in: [ :metaclass | > metaclass xxx. > metaclass yyy ]. > > This is quite similar to lisp's let. > > You can do almost anything with blocks/closures. > > Although not relevant in most cases, there is a small performance price to > pay - but again this is only relevant inside performance critical loops. > > > On 4 Mar 2019, at 14:06, Tim Mackinnon <tim(a)testit.works> wrote: > > > > Iâve noticed that as weâve progressed there has been a move to more > concise and fluid code - e.g. I quite like the new String streaming stuff > > > > e.g. > > > > ^ String > > streamContents: [ :stream | > > stream nextPut: â¦. ] > > > > > > So I was wondering why we donât have a construct like Pascals with to > avoid Book1.title, Book1.author etc. > > > > (* book 1 specification *) > > With Book1 do > > begin > > > > title > > := 'C Programming'; > > > > author > > := 'Nuha Ali '; > > > > subject > > := 'C Programming Tutorial'; > > > > book_id > > := 6495407; > > end; > > > > I often find it a bit tedious with code like the following which then needs an > instvar... > > > > self classes do: [ :class | > > | metaclass | > > metaclass := class metaclass. > > metaclass xxxx. > > mataclass yyyy. > > ] > > > > > > Iâm wondering why we donât have #with:do: > > > > class with: class metaclass do: [:metaclass | > > metaclass xxx. > > ] > > > > > > But when such things arenât there - there is usually a good reason and Iâm > curious â¦ this said, there are all kinds of other such tricks (which I rarely use > that I keep coming across). > > > > Tim > > >

March 4, 2019

Re: [Pharo-users] A "with" construct like Pascal - easy to do, but is it terrible?

by Sven Van Caekenberghe

There is #in: that does exactly that: class metaclass in: [ :metaclass | metaclass xxx. metaclass yyy ]. This is quite similar to lisp's let. You can do almost anything with blocks/closures. Although not relevant in most cases, there is a small performance price to pay - but again this is only relevant inside performance critical loops. > On 4 Mar 2019, at 14:06, Tim Mackinnon <tim(a)testit.works> wrote: > > Iâve noticed that as weâve progressed there has been a move to more concise and fluid code - e.g. I quite like the new String streaming stuff > > e.g. > > ^ String > streamContents: [ :stream | > stream nextPut: â¦. ] > > > So I was wondering why we donât have a construct like Pascals with to avoid Book1.title, Book1.author etc. > > (* book 1 specification *) > With Book1 do > begin > > title > := 'C Programming'; > > author > := 'Nuha Ali '; > > subject > := 'C Programming Tutorial'; > > book_id > := 6495407; > end; > > I often find it a bit tedious with code like the following which then needs an instvar... > > self classes do: [ :class | > | metaclass | > metaclass := class metaclass. > metaclass xxxx. > mataclass yyyy. > ] > > > Iâm wondering why we donât have #with:do: > > class with: class metaclass do: [:metaclass | > metaclass xxx. > ] > > > But when such things arenât there - there is usually a good reason and Iâm curious â¦ this said, there are all kinds of other such tricks (which I rarely use that I keep coming across). > > Tim >

March 4, 2019

Re: [Pharo-users] A "with" construct like Pascal - easy to do, but is it terrible?

by Esteban Maringolo

Well... you have the cascading that provides you that. book1 title:'C Programming'; author: 'Nuha Ali '; subject: 'C Programming Tutorial'; book_id: 6495407. What I would like, sometimes, is the option to nest cascades, very much like the WITH DO construct of Pascal, Basic and others. But also I take this as a hint of some refactoring needed in my objects. Regards, Esteban A. Maringolo El lun., 4 mar. 2019 a las 10:07, Tim Mackinnon (<tim(a)testit.works>) escribiÃ³: > > Iâve noticed that as weâve progressed there has been a move to more concise and fluid code - e.g. I quite like the new String streaming stuff > > e.g. > > ^ String > streamContents: [ :stream | > stream nextPut: â¦. ] > > > So I was wondering why we donât have a construct like Pascals with to avoid Book1.title, Book1.author etc. > > (* book 1 specification *) > With Book1 do > begin > title := 'C Programming'; > author := 'Nuha Ali '; > subject := 'C Programming Tutorial'; > book_id := 6495407; > end; > > > I often find it a bit tedious with code like the following which then needs an instvar... > > self classes do: [ :class | > | metaclass | > metaclass := class metaclass. > metaclass xxxx. > mataclass yyyy. > ] > > > Iâm wondering why we donât have #with:do: > > class with: class metaclass do: [:metaclass | > metaclass xxx. > ] > > > But when such things arenât there - there is usually a good reason and Iâm curious â¦ this said, there are all kinds of other such tricks (which I rarely use that I keep coming across). > > Tim >

March 4, 2019

A "with" construct like Pascal - easy to do, but is it terrible?

by Tim Mackinnon

Iâve noticed that as weâve progressed there has been a move to more concise and fluid code - e.g. I quite like the new String streaming stuff e.g. ^ String streamContents: [ :stream | stream nextPut: â¦. ] So I was wondering why we donât have a construct like Pascals with to avoid Book1.title, Book1.author etc. (* book 1 specification *) With Book1 do begin title := 'C Programming'; author := 'Nuha Ali '; subject := 'C Programming Tutorial'; book_id := 6495407; end; I often find it a bit tedious with code like the following which then needs an instvar... self classes do: [ :class | | metaclass | metaclass := class metaclass. metaclass xxxx. mataclass yyyy. ] Iâm wondering why we donât have #with:do: class with: class metaclass do: [:metaclass | metaclass xxx. ] But when such things arenât there - there is usually a good reason and Iâm curious â¦ this said, there are all kinds of other such tricks (which I rarely use that I keep coming across). Tim

March 4, 2019

Re: [Pharo-users] Stability of Pharo 7 vs 6?

by Tim Mackinnon

Just as a follow up to this - since not running fullscreen (as in not click on the green expand button in OSX) and having saved my image once - the stability seems to be much better. Iâve had an image running in the background for over a week now with no issue (whereas before it crashed in less than 24 hours) So I guess I should try another experiment with fullscreen but a saved image (my hypothesis is that its the initial saving that really makes the difference). Tim > On 18 Feb 2019, at 08:29, Hilaire <hilaire(a)drgeo.eu> wrote: > > Le 18/02/2019 Ã 02:00, Tim Mackinnon a Ã©crit : >> >> Having said this - Iâm still not having the smooth ride others are >> reporting - and 7 is still suspect to me. > > Indeed, the Pharo stability (or any other software) depends on several > factors: in your case OSX, fullscreen, P7 image and VM, plugin. Also > likely, not many of us are using Pharo fullscreen > >> >> Iâm kind of suprised this isnât getting much traction from the core >> team - and I wonder if I should post this on the dev list instead? >> > Reporting these kind of issues here seems to me as the right place. The > dev list is dedicated to exchange related to the development of Pharo. > > As your issue is likely related to the VM, you could report it to the VM > list, there http://forum.world.st/Squeak-VM-f104410.html? > > You may have some additional clues. While it is annoying to be under > such circumstance when you just want to work on your project (been there > many times), it could be a valuable contribution, eventually with self > knowledge amplification outcome. > > Hilaire > > -- > Dr. Geo > http://drgeo.eu > > >

March 4, 2019

Re: [Pharo-users] http://planet.smalltalk.org ?

by Ben Coman

On Mon, 4 Mar 2019 at 09:24, Benoit St-Jean via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > The smalltalk.org domain was registered to Peter William Lount. I've > worked with him at some point. Maybe I could ask him if he plans to do > anything with planet.smalltalk.org at all (we are still in contact) ? > Hey :) you don't need to ask to do it - just let us know you're doing it :) But since it was phrased as a question... Yes, please do so. cheers -ben > > On 2019-03-03 20:07, Pierce Ng wrote: > > On Sun, Mar 03, 2019 at 12:56:26PM -0300, HernÃ¡n Morales Durand wrote: > >> Me too I used to track a lot of interesting blogs out there. At one > >> time the main contact for the site was Coen de Roover : > >> http://soft.vub.ac.be/~cderoove/ > >> > >> Maybe someone already wrote him to ask? > > I wrote Coen a few weeks back. Did not receive a reply. > > > > At least going by www.smalltalk.org the domain hasn't gone to squatters. > > > > Pierce > > > > > -- > ----------------- > BenoÃ®t St-Jean > Yahoo! Messenger: bstjean > Twitter: @BenLeChialeux > Pinterest: benoitstjean > Instagram: Chef_Benito > IRC: lamneth > Blogue: endormitoire.wordpress.com > "A standpoint is an intellectual horizon of radius zero". (A. Einstein) > > >

March 4, 2019

Re: [Pharo-users] http://planet.smalltalk.org ?

by Benoit St-Jean

The smalltalk.org domain was registered to Peter William Lount. I've worked with him at some point.Â Maybe I could ask him if he plans to do anything with planet.smalltalk.org at all (we are still in contact) ? On 2019-03-03 20:07, Pierce Ng wrote: > On Sun, Mar 03, 2019 at 12:56:26PM -0300, HernÃ¡n Morales Durand wrote: >> Me too I used to track a lot of interesting blogs out there. At one >> time the main contact for the site was Coen de Roover : >> http://soft.vub.ac.be/~cderoove/ >> >> Maybe someone already wrote him to ask? > I wrote Coen a few weeks back. Did not receive a reply. > > At least going by www.smalltalk.org the domain hasn't gone to squatters. > > Pierce > > -- ----------------- BenoÃ®t St-Jean Yahoo! Messenger: bstjean Twitter: @BenLeChialeux Pinterest: benoitstjean Instagram: Chef_Benito IRC: lamneth Blogue: endormitoire.wordpress.com "A standpoint is an intellectual horizon of radius zero". (A. Einstein)

March 4, 2019