November 2012 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] New Change System

by Ezequiel Lamonica

Hi Goran, We use your idea about "previous" and "post" states of the system for every change at the moment that was done. Also,the possibility of do redo and undo of every kind of change. Then, we track changes from the system announcements instead of monticello packages and we relate every kind of change with its correspondent ring object. Another difference could be the change hierarchy. On 22 November 2012 18:16, GÃ¶ran Krampe <goran(a)krampe.se> wrote: > Hi! > > > On 11/22/2012 05:10 PM, Ezequiel Lamonica wrote: > >> Hi guys, >> >> We are working on a New Change System >> <http://smalltalkhub.com/#!/~**EzequielLamonica/**NewChangeSystem/<http://smalltalkhub.com/#!/~EzequielLamonica/NewChangeSystem/> >> >. >> >> In this link you can see the project. >> > > I should of course look at the code but could you outline > differences/similarities to my/our work on Deltas? > > Then I might be able to give some thoughtful feedback - and yes, I will > look at the code too but it is always interesting to hear "intentions" too. > :) > > regards, GÃ¶ran > >

Nov. 27, 2012

Re: [Pharo-project] What the best way to implement week dictionary cache

by Igor Stasenko

On 27 November 2012 11:11, Denis Kudriashov <dionisiydk(a)gmail.com> wrote: >> You could take a look at the WeakDictionary that ships in a standard >> Squeak image, if there isn't already one lying around in Pharo. There >> are several classes using weak references. > > > I will look at squeak stuff. > But my question more about about conceptual problem: I need week dictionary > which values has reference to it key. Can it be really week? > I think it can be kind of "ephemeron problem" and such dictionary contents > will never be garbaged. Is ephemerons supported by latest vm? > Ephemerons support is in VM. All you need is to load image-side code. http://code.google.com/p/cog/issues/detail?id=44 I plan to change implementation to use separate object format id. But if you need it right now, you can use them in current state. > In pharo I see two classes: WeakKeyDictionary and WeakValueDictionary. > What you think I should use to implement my requirements: cache which can be > cleaned by garbage collector due to weak keys or values? > > 2012/11/27 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> >> >> Ghost > > > I think it is just implementation of very skin proxy objects? > Is it related to weak dictionary cache? -- Best regards, Igor Stasenko.

Nov. 27, 2012

Re: [Pharo-project] New Change System

by Ezequiel Lamonica

Thanks for your feedback. About the UI, I completely agree and a support to recent messages is a good idea. Thanks! On 22 November 2012 18:18, Torsten Bergmann <astares(a)gmx.de> wrote: > Nice! > > You should disable the "undo" menu on evaluted expressions > since they can not be undone. > > UI need some work (alignment, splitter size, ...) > > Will it support grouping similar to "Tools" -> "Recent Messages" > so I can see changes I did on a method, class, ...? > > Thanks > T. > >

Nov. 27, 2012

Re: [Pharo-project] What the best way to implement week dictionary cache

by Denis Kudriashov

> > You could take a look at the WeakDictionary that ships in a standard > Squeak image, if there isn't already one lying around in Pharo. There > are several classes using weak references. > I will look at squeak stuff. But my question more about about conceptual problem: I need week dictionary which values has reference to it key. Can it be really week? I think it can be kind of "ephemeron problem" and such dictionary contents will never be garbaged. Is ephemerons supported by latest vm? In pharo I see two classes: WeakKeyDictionary and WeakValueDictionary. What you think I should use to implement my requirements: cache which can be cleaned by garbage collector due to weak keys or values? 2012/11/27 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > Ghost I think it is just implementation of very skin proxy objects? Is it related to weak dictionary cache?

Nov. 27, 2012

[Pharo-project] Changes in announcements

by Ezequiel Lamonica

Hi, I was reviewing with Esteban about the lack of some announcements in the system and some bugs in other ones. I've been working on that for this week. This is the list: -MethodRename -Snapshot -Session (i don't know if this is necessary) -VariableAdded (one for every kind) -VariableRemoved (one for every kind) -Protocols (add/modif/remove/rename) -TraitComposition - When a package is created, the announcement is not released This only happens when a class is created with that category. -When I modify a class and also I change its category, then only class recategorized announcement is sent -Package removed is not sent

Nov. 27, 2012

Re: [Pharo-project] What the best way to implement week dictionary cache

by StÃ©phane Ducasse

did you look at Ghost? Because mariano worked during one year on it. Stef On Nov 27, 2012, at 8:56 AM, Denis Kudriashov wrote: > Hello. > > I want implement cache for proxy objects. > I need some kind of dictionary which I can request for proxy of actual object. And any user of actual objects will work with same instances of proxies. And every proxy object has reference to actual object. > > Obvious solution is basic dictionary with actual objects as keys and proxy-objects as values. > But next I want my dictionary be week. And when nobody uses actual object it should be garbaged and my cache of proxies should be cleaned from unused proxies/actuals. > > Is it possible to implement such cache? And how it can be done? > > Best regards, > Denis

Nov. 27, 2012

Re: [Pharo-project] Got our first pharo consortium contract :)

by StÃ©phane Ducasse

Norbert >> Great!. And being the first is always something special :) Do you think the fees can be transferred already this year? We decided to do a pro-rata so that people do not think that we are trying to steal them and also to make sure that everybody can join at any time without thinking too much. So it would mean 1 month so it will be probably for january. Now if you want to pay the full price we can do it :). Stef

Nov. 27, 2012

Re: [Pharo-project] Got our first pharo consortium contract :)

by StÃ©phane Ducasse

I will ask. On Nov 27, 2012, at 9:56 AM, Norbert Hartl wrote: > > Am 26.11.2012 um 22:01 schrieb StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>: > >> Hi guys >> >> This is a great day. We got our first pharo consortium contract signed by a great >> company: 2Denker :) >> > Great!. And being the first is always something special :) Do you think the fees can be transferred already this year? > > Norbert > >> Thanks for your trust! >> >> Soon the web site will get from the ground. >> Esteban got distracted by some VM bug chasing parties but he will be back on it. >> >> Stef > >

Nov. 27, 2012

Re: [Pharo-project] Got our first pharo consortium contract :)

by Norbert Hartl

Am 26.11.2012 um 22:01 schrieb StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>: > Hi guys > > This is a great day. We got our first pharo consortium contract signed by a great > company: 2Denker :) > Great!. And being the first is always something special :) Do you think the fees can be transferred already this year? Norbert > Thanks for your trust! > > Soon the web site will get from the ground. > Esteban got distracted by some VM bug chasing parties but he will be back on it. > > Stef

Nov. 27, 2012

Re: [Pharo-project] Internship

by StÃ©phane Ducasse

On Nov 26, 2012, at 10:02 AM, Goubier Thierry wrote: > Le 23/11/2012 19:04, StÃ©phane Ducasse a Ã©crit : >> thierry >> >> we will publish this offer. >> Now did you look at dave mason work on C header parsing. > > Hi Stef, > > no I haven't but I can have a look if you had any pointer. > > I started doing C parsing out of Lex/Yacc and studying C implementations (pcc, gcc before 4.0, gcc 4+, CLANG/LLVM) and ocaml (CIL, Frama-C) (looked a bit at ANTLR as well). After a few years of C/Flex/Bison, I moved to Pharo/SMACC. this is cool. what is the license of the Pharo one? > > One of my C-based parser has been modified for use in the toolchain of Kalray (http://www.kalray.eu/products/mppa-accesscore/) > > Thierry > >> Stef >> >> On Nov 22, 2012, at 3:42 PM, Goubier Thierry wrote: >> >>> Hi all, >>> >>> I'm looking for some help in parsing C files (and the opportunity to use Petit Parser (Parseur?)) so I'm looking for an internship candidate (Master level). >>> >>> The objective is to do a C preprocessor with a targeted integration in an existing C parser, and, in particular, provide high-level information about applied macros/defines for the tokens provided to the C parser itself. Platform should be Pharo (2.0:)). >>> >>> Place is Saclay, SW of Paris. The lab has a strong team on compilation tool chains for embedded manycores, from programming language design down to micro-kernel and mapping, and is able to select good interns for further work opportunities. >>> >>> http://www.cea.fr/ressources-humaines/stages-et-formation-en-alternance/les… >>> >>> Regards, >>> >>> Thierry >>> -- >>> Thierry Goubier >>> CEA list >>> Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s >>> 91191 Gif sur Yvette Cedex >>> France >>> Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95 >>> >> >> >> > > > -- > Thierry Goubier > CEA list > Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s > 91191 Gif sur Yvette Cedex > France > Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95 >

Nov. 27, 2012