October 2017 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] Swimming with the fish imagery

by Stephane Ducasse

Ben you should have a look super fast at the mooc because some lectures are nice pearls. Anyway: I was talking about http://rmod-pharo-mooc.lille.inria.fr/MOOC/Videos/W1/C019SD-W1-S2-v2.mp4 looks for the aquariums :) Stef On Sat, Oct 7, 2017 at 1:38 PM, Ben Coman <btc(a)openinworld.com> wrote: > I haven't. I just went looking for it through all the video links here... > http://files.pharo.org/mooc/ > and couldn't recognise which you refer to. Do you have a link? > > cheers -ben > > On Sat, Oct 7, 2017 at 4:23 PM, Stephane Ducasse <stepharo.self(a)gmail.com> > wrote: >> >> Did you watch the What is Pharo videos of the mooc :) >> >> On Sat, Oct 7, 2017 at 3:16 AM, Ben Coman <btc(a)openinworld.com> wrote: >> > >> > "Swimming with the fish" is a catchy phrase that I like which seems to >> > encompass the strength of Pharo's tight development feedback loop that >> > comes >> > from operating in a world of live objects. I had some imagery floating >> > through my head on this I thought worth sharing. Only time for a quick >> > dump, >> > but I hope you can piece it together... >> > >> > >> > In the style of one of those fast paced cartoon product videos... >> > >> > Scene 1: >> > "The development process we all know..." >> > A neutral background with directed arcs in circle >> > "Debug-->Edit-->Compile-->Execute-->" >> > >> > >> > Scene 2: >> > "In most languages... debugging..." >> > Zoom in on Aquarium 1 to show a developer standing outside aquarium >> > window... >> > https://tinyurl.com/PharoSwimWithTheFish-Outside >> > >> > reaching in through quarantine-box-like-gloxes to use telescopic tools >> > to >> > pick up and examine fish at a distance... >> > https://tinyurl.com/PharoSwimWithTheFish-OtherTool >> > >> > until the lightbulb moment... >> > https://tinyurl.com/PharoSwimWithTheFish-Lightbulb >> > >> > >> > Scene 3: >> > "In most languages... editing...." >> > Developer zooms out away from aquarium. It folds up into a tiny box and >> > drops in a bin. >> > Developer zooms in on an architectural drafting table with many drawings >> > with many different but simple flow diagrams on each. Quickly make >> > required >> > edit to flow diagrams. >> > https://tinyurl.com/PharoSwimWithTheFish-OtherEdit >> > >> > >> > Scene 4: >> > "In most languages... compiling..." >> > Drawings pass through a photocopier into a box that is transferred to >> > site >> > supervisor. >> > At an empty flat construction site, supervisor opens box pulling out >> > drawings to review them. >> > Trucks and machines arrive and start building the aquarium at his >> > direction... >> > Two buildings clash when they overlap the same space (compile error). >> > Return >> > to Scene 3 to fix design then rerun Scene 4 through to completion. >> > >> > >> > Scene 5: >> > " In most languages... execution..." >> > Water trucks arrive and pour water into the pool, then more trucks >> > arrive >> > adding the fish. >> > (i.e. initialization and getting to the point of the program you want >> > check >> > again) >> > >> > >> > Scene 6: >> > "In most languages... debugging..." >> > Complete the loop by starting scene 3 again. >> > >> > >> > Scene 7: >> > "In Pharo.... debugging..." >> > Zoom out, over and into Aquarium 2 where a developer is swimming inside >> > the >> > pool... >> > https://tinyurl.com/PharoSwimWithTheFish-Inside >> > >> > http://blog.atlantisthepalm.com/wp-content/uploads/2017/05/different-in-wat… >> > >> > Developer grabs a fish, shifts it aside, lets it go to swim some more, >> > grabs >> > it again, holds it up close to look a small detail. Out of nothing >> > creates >> > a new fish to interact with the first fish. >> > Out of nothing creates some clay and then moulds a new scope-like tool >> > from >> > it to look at the fish differently. >> > >> > Lightbulb moment... >> > https://tinyurl.com/PharoSwimWithTheFish-Lightbulb >> > >> > "In Pharo.... editing..." >> > Developer peers into brain of fish seeing many neurons, picks one out >> > which >> > shows as simple flow diagram, makes a change to it. >> > >> > "In Pharo.... compiling..." >> > Laser beam quickly scans the simple flow diagram and packs neuron back >> > into >> > the fish. >> > >> > "In Pharo.... execution..." >> > Fish swims off. >> > >> > "In Pharo.... debugging..." >> > Developer grabs another fish... >> > >> > >> > Scene 8: >> > Zoom out to show both aquariums. >> > In Aquarium 1, repetitively run through Scenes 2 through 6 >> > In Aquarium 2, repetitively run through Scene 7. >> > Play at 10x original speed. >> > >> > Fade in a "Debug-->Edit-->Compile-->Run-->" over each aquarium, showing >> > synced state transitions. >> > >> > Fade in "Come swim with the fish with Pharo" >> > Fade in "It will change the way you think about programming" >> > >> > >> > cheers -ben >> >

Oct. 7, 2017

Re: [Pharo-dev] slots & first class relations

by Stephane Ducasse

I would love that someone work on a Pharo modeling library: Pharo + relationships. Stef On Sat, Oct 7, 2017 at 2:45 PM, Ben Coman <btc(a)openinworld.com> wrote: > thx for the tip. > cheers -ben > > > On Sat, Oct 7, 2017 at 8:24 PM, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: >> >> Take a look at the "Slot" package in Pharo. >> There's "Examples" and "Examples-Associations" (first class relations) >> tags. >> >> Peter >> >> On Sat, Oct 7, 2017 at 1:32 PM, Ben Coman <btc(a)openinworld.com> wrote: >>> >>> Just wondering what was the status of Slots regarding "first class >>> relations" described in "Flexible Object Layouts" - and availability of >>> examples/tutorials. >>> https://core.ac.uk/download/pdf/51216612.pdf >>> >>> cheers -ben >> >> >

Oct. 7, 2017

Re: [Pharo-dev] PharoMinimal ?

by Stephane Ducasse

I will let guille and pavel reply because they know. Sven guille and/or Pavel sent a mail a while ago explaining all the different stages. What I want is that we continue shrinking the core and get a modular system. We are getting there for real. ;) Stef On Sat, Oct 7, 2017 at 4:18 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > Hi, > > What is the story around PharoMinimal and related images ? > > Is there a writeup somewhere with instructions ? > > I see that we get **FANTASTIC** startup speed with it: > > $ cat /etc/issue > Ubuntu 16.04.3 LTS > > $ ./pharo --version > 5.0-201708271955 Sun Aug 27 20:09:20 UTC 2017 gcc 4.6.3 [Production Spur VM] > CoInterpreter VMMaker.oscog-eem.2265 uuid: 76b62109-629a-4c39-9641-67b53321df9a Aug 27 2017 > StackToRegisterMappingCogit VMMaker.oscog-eem.2262 uuid: 8b531242-de02-48aa-b418-8d2dde0bec6c Aug 27 2017 > VM: 201708271955 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Date: Sun Aug 27 21:55:26 2017 +0200 $ > Plugins: 201708271955 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ > Linux testing-gce-ebf45dd8-6a4c-43a5-abd0-e5d8673d05a4 3.13.0-115-generic #162~precise1-Ubuntu SMP Fri Mar 24 16:47:06 UTC 2017 i686 i686 i386 GNU/Linux > plugin path: /home/audio359/pharo7/pharo-vm/lib/pharo/5.0-201708271955 [default: /home/audio359/pharo7/pharo-vm/lib/pharo/5.0-201708271955/] > > $ curl get.pharo.org/70-minimal | bash > ... > > $ ./pharo Pharo.image printVersion > [version] 'Pharo7.0' 'Pharo-7.0+alpha.build.172.sha.d13eed2f80fe19f29fd85ede8c4809d6a6986d4f (32 Bit)' > > $ time ./pharo Pharo.image eval '5 factorial' > 120 > real 0m0.083s > user 0m0.034s > sys 0m0.042s > > That is less than 1/10 of a second on a simple server ! Wow. > > Loading new code in that image seem hard though. > > I see that in http://files.pharo.org/image/70/ there are Pharomonticello & Pharometacello variants. > > Any pointers on usage/meaning ? > > Thx, > > Sven

Oct. 7, 2017

PharoMinimal ?

by Sven Van Caekenberghe

Hi, What is the story around PharoMinimal and related images ? Is there a writeup somewhere with instructions ? I see that we get **FANTASTIC** startup speed with it: $ cat /etc/issue Ubuntu 16.04.3 LTS $ ./pharo --version 5.0-201708271955 Sun Aug 27 20:09:20 UTC 2017 gcc 4.6.3 [Production Spur VM] CoInterpreter VMMaker.oscog-eem.2265 uuid: 76b62109-629a-4c39-9641-67b53321df9a Aug 27 2017 StackToRegisterMappingCogit VMMaker.oscog-eem.2262 uuid: 8b531242-de02-48aa-b418-8d2dde0bec6c Aug 27 2017 VM: 201708271955 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Date: Sun Aug 27 21:55:26 2017 +0200 $ Plugins: 201708271955 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Linux testing-gce-ebf45dd8-6a4c-43a5-abd0-e5d8673d05a4 3.13.0-115-generic #162~precise1-Ubuntu SMP Fri Mar 24 16:47:06 UTC 2017 i686 i686 i386 GNU/Linux plugin path: /home/audio359/pharo7/pharo-vm/lib/pharo/5.0-201708271955 [default: /home/audio359/pharo7/pharo-vm/lib/pharo/5.0-201708271955/] $ curl get.pharo.org/70-minimal | bash ... $ ./pharo Pharo.image printVersion [version] 'Pharo7.0' 'Pharo-7.0+alpha.build.172.sha.d13eed2f80fe19f29fd85ede8c4809d6a6986d4f (32 Bit)' $ time ./pharo Pharo.image eval '5 factorial' 120 real 0m0.083s user 0m0.034s sys 0m0.042s That is less than 1/10 of a second on a simple server ! Wow. Loading new code in that image seem hard though. I see that in http://files.pharo.org/image/70/ there are Pharomonticello & Pharometacello variants. Any pointers on usage/meaning ? Thx, Sven

Oct. 7, 2017

Re: [Pharo-dev] Pulling Web XML data into spreadsheet

by Sean P. DeNigris

Ben Coman wrote > Nope. Wow. Kudos to them. Unlucky for you ;) ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html

Oct. 7, 2017

Re: [Pharo-dev] slots & first class relations

by Ben Coman

thx for the tip. cheers -ben On Sat, Oct 7, 2017 at 8:24 PM, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: > Take a look at the "Slot" package in Pharo. > There's "Examples" and "Examples-Associations" (first class relations) > tags. > > Peter > > On Sat, Oct 7, 2017 at 1:32 PM, Ben Coman <btc(a)openinworld.com> wrote: > >> Just wondering what was the status of Slots regarding "first class >> relations" described in "Flexible Object Layouts" - and availability of >> examples/tutorials. >> https://core.ac.uk/download/pdf/51216612.pdf >> >> cheers -ben >> > >

Oct. 7, 2017

Re: [Pharo-dev] slots & first class relations

by Peter UhnÃ¡k

Take a look at the "Slot" package in Pharo. There's "Examples" and "Examples-Associations" (first class relations) tags. Peter On Sat, Oct 7, 2017 at 1:32 PM, Ben Coman <btc(a)openinworld.com> wrote: > Just wondering what was the status of Slots regarding "first class > relations" described in "Flexible Object Layouts" - and availability of > examples/tutorials. > https://core.ac.uk/download/pdf/51216612.pdf > > cheers -ben >

Oct. 7, 2017

Re: [Pharo-dev] [ANN] Iceberg 0.6 released

by Ben Coman

On Sat, Oct 7, 2017 at 1:18 AM, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > Hi all, > > I released Iceberg version 0.6. It includes a lot of small tweaks and > fixes, but the most important inclusion is tonel file format which aims to > replace file tree. > > What is Tonel? (https://github.com/pharo-vcs/tonel) > Tonel is a file-per-class file format for monticello repositories. Itâs > purpose is to reduce the amount of files touched each operation, make the > IO faster an compact the repositories database. > It has also as an objective to offer an âeasy-to-readâ format, so people > wanting to understand a chunk of code will recognise it easily. > For testing, I migrated several of my projects to Tonel and Iâve been > using it, you can see some as examples: > > https://github.com/estebanlm/MUDClient > https://github.com/estebanlm/pharo-tonel (this was just an example and it > has some minimal errors already fixed) > Tonel looks really nice - very clean and readable. A question about the dual use of #category here... Class { #name : #MUDAliasCommand, #superclass : #Object, #instVars : [ 'keywords' ], #classVars : [ 'CommandParser' ], #category : 'MUDClient-Plugin-Alias-Parser' } { #category : #'instance creation' } MUDAliasCommand class >> fromString: aString [ ^ self parse: aString ] It would be nice to separate the semantics, changing one to either #package or the other to #protocol. I thought we were leaving class categories behind, so the following seems to provide a more consistent future... #package : 'MUDClient-Plugin-Alias-Parser' Now because we live with this the next ten years, even though I'm mindful that you're "done", I'm going to be annoying and ask consideration to fine tune one thing, to move the open-square-bracket like this... { #category : #'instance creation' } [ MUDAliasCommand class >> fromString: aString ^ self parse: aString ] This would help adhoc copy-pasting from web repos into the Image. Although as Tonel currently stands it is trivial to delete one square bracket, it would be more elegant not doing it when copy-pasting a dozen methods. I hope for a future where new methods might be created directly from Playground by doing... MUDAliasCommand class >> fromString: aString ^ self parse: aString and further, if Opal could be made parse STON format and recognize the back-to-back close-curly/open-square brackets**, you could copy-paste a whole class from a Tonel web repo into Playground or the Browser to adhoc install of a whole class. That would be magic! ** Actually this might be easier to identify than if they are separated. On a minor note, "fromString: aString" is part of the method source, so it conceptually it should be okay to have inside the square brackets. Anyway, I understand if there are constraints against making this change, being late to the party but some thoughts don't arise until there is a practical example to reflect on and the final chance is imminent, so just asking it be considered. cheers -ben P.S. in a world where Bloc can do arbitrary objects inline with text, the "MUDAliasCommand class >>" part might show as one chunk to the left of "fromString: aString". The benefit for newcomers would be *explicitly* showing which instance/class-side the method belongs to, rather than relying on the implicit selection of the class-button which newcomers often miss (I remember being caught on that a few times until I got my eye attuned)

Oct. 7, 2017

Re: [Pharo-dev] Swimming with the fish imagery

by Ben Coman

I haven't. I just went looking for it through all the video links here... http://files.pharo.org/mooc/ and couldn't recognise which you refer to. Do you have a link? cheers -ben On Sat, Oct 7, 2017 at 4:23 PM, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > Did you watch the What is Pharo videos of the mooc :) > > On Sat, Oct 7, 2017 at 3:16 AM, Ben Coman <btc(a)openinworld.com> wrote: > > > > "Swimming with the fish" is a catchy phrase that I like which seems to > > encompass the strength of Pharo's tight development feedback loop that > comes > > from operating in a world of live objects. I had some imagery floating > > through my head on this I thought worth sharing. Only time for a quick > dump, > > but I hope you can piece it together... > > > > > > In the style of one of those fast paced cartoon product videos... > > > > Scene 1: > > "The development process we all know..." > > A neutral background with directed arcs in circle > > "Debug-->Edit-->Compile-->Execute-->" > > > > > > Scene 2: > > "In most languages... debugging..." > > Zoom in on Aquarium 1 to show a developer standing outside aquarium > > window... > > https://tinyurl.com/PharoSwimWithTheFish-Outside > > > > reaching in through quarantine-box-like-gloxes to use telescopic tools to > > pick up and examine fish at a distance... > > https://tinyurl.com/PharoSwimWithTheFish-OtherTool > > > > until the lightbulb moment... > > https://tinyurl.com/PharoSwimWithTheFish-Lightbulb > > > > > > Scene 3: > > "In most languages... editing...." > > Developer zooms out away from aquarium. It folds up into a tiny box and > > drops in a bin. > > Developer zooms in on an architectural drafting table with many drawings > > with many different but simple flow diagrams on each. Quickly make > required > > edit to flow diagrams. > > https://tinyurl.com/PharoSwimWithTheFish-OtherEdit > > > > > > Scene 4: > > "In most languages... compiling..." > > Drawings pass through a photocopier into a box that is transferred to > site > > supervisor. > > At an empty flat construction site, supervisor opens box pulling out > > drawings to review them. > > Trucks and machines arrive and start building the aquarium at his > > direction... > > Two buildings clash when they overlap the same space (compile error). > Return > > to Scene 3 to fix design then rerun Scene 4 through to completion. > > > > > > Scene 5: > > " In most languages... execution..." > > Water trucks arrive and pour water into the pool, then more trucks arrive > > adding the fish. > > (i.e. initialization and getting to the point of the program you want > check > > again) > > > > > > Scene 6: > > "In most languages... debugging..." > > Complete the loop by starting scene 3 again. > > > > > > Scene 7: > > "In Pharo.... debugging..." > > Zoom out, over and into Aquarium 2 where a developer is swimming inside > the > > pool... > > https://tinyurl.com/PharoSwimWithTheFish-Inside > > http://blog.atlantisthepalm.com/wp-content/uploads/2017/ > 05/different-in-water-2x1.jpg > > > > Developer grabs a fish, shifts it aside, lets it go to swim some more, > grabs > > it again, holds it up close to look a small detail. Out of nothing > creates > > a new fish to interact with the first fish. > > Out of nothing creates some clay and then moulds a new scope-like tool > from > > it to look at the fish differently. > > > > Lightbulb moment... > > https://tinyurl.com/PharoSwimWithTheFish-Lightbulb > > > > "In Pharo.... editing..." > > Developer peers into brain of fish seeing many neurons, picks one out > which > > shows as simple flow diagram, makes a change to it. > > > > "In Pharo.... compiling..." > > Laser beam quickly scans the simple flow diagram and packs neuron back > into > > the fish. > > > > "In Pharo.... execution..." > > Fish swims off. > > > > "In Pharo.... debugging..." > > Developer grabs another fish... > > > > > > Scene 8: > > Zoom out to show both aquariums. > > In Aquarium 1, repetitively run through Scenes 2 through 6 > > In Aquarium 2, repetitively run through Scene 7. > > Play at 10x original speed. > > > > Fade in a "Debug-->Edit-->Compile-->Run-->" over each aquarium, showing > > synced state transitions. > > > > Fade in "Come swim with the fish with Pharo" > > Fade in "It will change the way you think about programming" > > > > > > cheers -ben > >

Oct. 7, 2017

slots & first class relations

by Ben Coman

Just wondering what was the status of Slots regarding "first class relations" described in "Flexible Object Layouts" - and availability of examples/tutorials. https://core.ac.uk/download/pdf/51216612.pdf cheers -ben

Oct. 7, 2017