February 2015 - Pharo-users

[OT] Two questions about coding with Amber

by Sebastian Sastre

Hi there! I hope this not get too off topic here but I consider Amber and Pharo to be kind of best friends and we need more data/input for this to improve the development experience. Did you tried or use Amber <http://amber-lang.net/>? We want to have some insight and understand better this two basic things about how Amber users use it to code. If you use Amber or have used it for any purpose (including trying it out), please answer this: http://goo.gl/forms/DZ2djBRW9E <http://goo.gl/forms/DZ2djBRW9E> I'm going to share results after we close the poll. Thanks!

Feb. 2, 2015

Nice review of Pharo by Example

by Marcus Denker

http://www.adamtornhill.com/reviews/pharobyexample.htm <http://www.adamtornhill.com/reviews/pharobyexample.htm>

Feb. 2, 2015

Pharo on Raspberry Pi 2

by Thierry Goubier

Hi all, given this announcement, what would this mean for Pharo on the Raspberry Pi 2? Thierry http://www.raspberrypi.org/raspberry-pi-2-on-sale/ Let's get the good stuff out of the way above the fold. Raspberry Pi 2 is now on sale *for $35* (the same price as the existing Model B+), featuring: - A 900MHz quad-core ARM Cortex-A7 CPU (~6x performance) - 1GB LPDDR2 SDRAM (2x memory) - Complete compatibility with Raspberry Pi 1 Because *it has an ARMv7 processor*, it can run the full range of ARM GNU/Linux distributions, including Snappy Ubuntu Core, as well as Microsoft Windows 10.

Feb. 2, 2015

Re: [Pharo-users] Cleaning code completition's namespace

by Guillermo Polito

Well yes, but GCs are happening all the time :). So the problem is that someone is keeping a strong reference on the symbol. I tried the following: - create a method named #unusedUnexpectedMessage: That came up in the auto completion, ok - remove it: Still in auto completion - force GC a looot: still in auto completion After chasing strong references I could clean up my image by doing: ChangeSet cleanUp: true. RecentMessageList cleanUp. 10 timesRepeat: [Smalltalk garbageCollect] First obvious thing: changesets and friends (lets also think about nautilus history that may do that) could keep strong references on symbols. Then the question is if that is correct or not... To me the problem is that the auto completion mechanism is pretty primitive and depends on all existing symbols instead of <the subset of symbols that could be messages>. Guille El Mon Feb 02 2015 at 12:05:49 PM, Sven Van Caekenberghe <sven(a)stfx.eu> escribiÃ³: > But weak refs are only killed after GC, right ? > > And even then... > > > On 02 Feb 2015, at 12:03, Guillermo Polito <guillermopolito(a)gmail.com> > wrote: > > > > It's the table that keeps the symbols and checks their uniqueness. > > > > but AFAIK the symbol table is weak. So probably it's the completion > mechanism that is keeping extra references... > > El Mon Feb 02 2015 at 11:52:28 AM, phil(a)highoctane.be < > phil(a)highoctane.be> escribiÃ³: > > Got the same problem here. > > > > Annoying when third parties have to do something in the environment as > they are shown things that do not exist. > > > > Where to look? What's the symbol intern table? > > > > Phil > > > > > > On Mon, Feb 2, 2015 at 11:44 AM, stepharo <stepharo(a)free.fr> wrote: > > Probably by resetting the Symbol intern table. but no time to dive into > it now. > > Hi all, > > > > Code completition tools show class/method old names i've changed and no > longer use. How can i remove all unused (occurring nowhere in source code) > or unimplemented names? > > > > Best, > > Laura > > > > > > > > > > > > > > > > >

Feb. 2, 2015

Re: [Pharo-users] Cleaning code completition's namespace

by Sven Van Caekenberghe

But weak refs are only killed after GC, right ? And even then... > On 02 Feb 2015, at 12:03, Guillermo Polito <guillermopolito(a)gmail.com> wrote: > > It's the table that keeps the symbols and checks their uniqueness. > > but AFAIK the symbol table is weak. So probably it's the completion mechanism that is keeping extra references... > El Mon Feb 02 2015 at 11:52:28 AM, phil(a)highoctane.be <phil(a)highoctane.be> escribiÃ³: > Got the same problem here. > > Annoying when third parties have to do something in the environment as they are shown things that do not exist. > > Where to look? What's the symbol intern table? > > Phil > > > On Mon, Feb 2, 2015 at 11:44 AM, stepharo <stepharo(a)free.fr> wrote: > Probably by resetting the Symbol intern table. but no time to dive into it now. > Hi all, > > Code completition tools show class/method old names i've changed and no longer use. How can i remove all unused (occurring nowhere in source code) or unimplemented names? > > Best, > Laura > > > > > > >

Feb. 2, 2015

Re: [Pharo-users] Cleaning code completition's namespace

by Guillermo Polito

It's the table that keeps the symbols and checks their uniqueness. but AFAIK the symbol table is weak. So probably it's the completion mechanism that is keeping extra references... El Mon Feb 02 2015 at 11:52:28 AM, phil(a)highoctane.be <phil(a)highoctane.be> escribiÃ³: > Got the same problem here. > > Annoying when third parties have to do something in the environment as > they are shown things that do not exist. > > Where to look? What's the symbol intern table? > > Phil > > > On Mon, Feb 2, 2015 at 11:44 AM, stepharo <stepharo(a)free.fr> wrote: > >> Probably by resetting the Symbol intern table. but no time to dive into >> it now. >> >>> Hi all, >>> >>> Code completition tools show class/method old names i've changed and no >>> longer use. How can i remove all unused (occurring nowhere in source code) >>> or unimplemented names? >>> >>> Best, >>> Laura >>> >> >> >> >> > > > >

Feb. 2, 2015

Re: [Pharo-users] Cleaning code completition's namespace

by Sven Van Caekenberghe

Maybe try Symbol compactSymbolTable But completion could do its own caching, I don't know. > On 02 Feb 2015, at 11:44, stepharo <stepharo(a)free.fr> wrote: > > Probably by resetting the Symbol intern table. but no time to dive into it now. >> Hi all, >> >> Code completition tools show class/method old names i've changed and no longer use. How can i remove all unused (occurring nowhere in source code) or unimplemented names? >> >> Best, >> Laura > >

Feb. 2, 2015

Re: [Pharo-users] Cleaning code completition's namespace

by phil＠highoctane.be

Got the same problem here. Annoying when third parties have to do something in the environment as they are shown things that do not exist. Where to look? What's the symbol intern table? Phil On Mon, Feb 2, 2015 at 11:44 AM, stepharo <stepharo(a)free.fr> wrote: > Probably by resetting the Symbol intern table. but no time to dive into it > now. > >> Hi all, >> >> Code completition tools show class/method old names i've changed and no >> longer use. How can i remove all unused (occurring nowhere in source code) >> or unimplemented names? >> >> Best, >> Laura >> > > > >

Feb. 2, 2015

Re: [Pharo-users] Small Chat App

by stepharo

Luc please keep the different versions because it can be quite cool to teach and compare solutions. Le 1/2/15 15:30, Luc Fabresse a Ã©crit : > Hi all, > > Raining sunday ;-) > > Images intÃ©grÃ©es 1 > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > "In Pharo 3.0" > Gofer it > smalltalkhubUser: 'LucFabresse' project: 'Grimoire'; > package: 'ChatApp'; > load. > > ChatApplication startLocalExample. > ChatApplication stopLocalExample > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > This a 1st draft version of a Chat Application that works. It is > implemented in plain Socket with an ad hoc text protocol. > > a *lot* should be improved, done or added: > > - write tests (it is always a pain to write for client/server apps so > here I skip them :-() > - ensure that everything is correctly destroyed/cleaned (processes, > sockets, streams, ...). it seems but... needs testing > - refactor to use SocketStream? > - better modularization of commands > - another implementation using Zinc but it would imply using HTTP > > Enjoy, > > Luc >

Feb. 2, 2015

Re: [Pharo-users] Cleaning code completition's namespace

by stepharo

Probably by resetting the Symbol intern table. but no time to dive into it now. > Hi all, > > Code completition tools show class/method old names i've changed and > no longer use. How can i remove all unused (occurring nowhere in > source code) or unimplemented names? > > Best, > Laura

Feb. 2, 2015