January 2013 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] [squeak-dev] Global variable lookup

by Eliot Miranda

On Fri, Jan 11, 2013 at 11:05 AM, Igor Stasenko <siguctua(a)gmail.com> wrote: > FYI, this is a code from Pharo, which we are did _right_ (of course > from Pharo perspective ;) > +1. local variable definitions override explicitly imported variable definitions inherited variable definitions override "global" variable definitions. But does the system automatically recompile importers of shared pools when bindings are added or removed from shared pools? At least Squeak does not. And this is an issue in the context of loading Monticello packages. With the VMMaker I refactored a lot of globals into shared p[ools when I decomposed ObjectMemory from the Interpreter hierarchy and added the Cogit hierarchy. I would have to manually recompile to get the references right on e.g. moving a variable from being a class variable of ObjectMemory into some shared pool, or on moving the variable from one shared pool to another. > > Class>>bindingOf: varName > "Answer the binding of some variable resolved in the scope of the > receiver, or nil > if variable with such name is not defined" > > "The lookup recurses up to superclasses looking inside their class > and shared pools, > but not the environment, since two classes, even if they have > ancestry relationship, > could use different environments. > That's why we doing an environment lookup only as a last step of > symbol lookup > and taking only the environment of receiver only, not any of it's > superclass(es) " > > | aSymbol binding | > aSymbol := varName asSymbol. > > ^ (self innerBindingOf: aSymbol) ifNil: [ > self environment bindingOf: aSymbol > ] > > > Class>>innerBindingOf: aSymbol > "Answer the binding of some variable resolved in the scope of the > receiver, or one of its superclass > but do not look up binding in receiver's environment. > Use #bindingOf: for looking up the variable binding in a full > scope, > including receiver's environment" > > | binding | > > "First look in classVar dictionary." > binding := self classPool bindingOf: aSymbol. > binding ifNotNil: [^binding]. > > "Next look in shared pools." > self sharedPools do: [:pool | > | aBinding | > aBinding := pool bindingOf: aSymbol. > aBinding ifNotNil: [^aBinding ]. > ]. > > superclass ifNotNil: [ > ^ superclass innerBindingOf: aSymbol. > ]. > ^ nil > > > On 11 January 2013 19:28, Bert Freudenberg <bert(a)freudenbergs.de> wrote: > > bindingOf:environment: > > > > -- > Best regards, > Igor Stasenko. > > -- best, Eliot

Jan. 11, 2013

Re: [Pharo-project] Fwd: How can the main window title in Squeak and Pharo be set?

by Frank Church

On 11 January 2013 13:34, Torsten Bergmann <astares(a)gmx.de> wrote: > From the history of Squeak and Pharo you can: > > 1. Squeak.exe (VM for Windows) was always able to set this using > the Setting "WindowTitle" in Pharo.ini - see > http://squeakvm.org/win32/settings.html > > This was implemented by Andreas Raab (maintainer of SqueakVM) > > 2. Later there was the idea in Squeak for a project > called "Areithfa Ffenestri" that should add more > support code to Squeak to allow access to the > native window or open new ones: > > http://wiki.squeak.org/squeak/3862 > > This is a VM plugin that is not in all VM's and even after > years AFAIK not fully implemented on all platforms. > > If it is available then you can do what Bert Freudenberg > suggested here: > > http://lists.squeakfoundation.org/pipermail/squeak-dev/2013-January/167766.… > > Dont know if the Pharo VM maintainers added this plugin > too. You have to ask Igor or Esteban. > > 3. While Squeak tries to stay platform independent and > encapsulate platform dependent logic mostly into VM plugins > to unify the access there is some other idea in Pharo now: > > With the growing need to easily access platform logic > of the underlying OS or access external libraries written in > other languages there is a new FFI plugin which is > (since Pharo 2.0) will be included in the standard distribution. > > This new Foreign Function Interface (FFI) is called > NativeBoost and will move more logic into Smalltalk > itself. So you dont have to write/compile a plugin. > > You just need a VM with NativeBoost support (NBCog.exe on Windows) > > Using native Boost (when in Pharo 2.0) you can (already!) > write: > > NBWin32Window getFocus setWindowText: 'Hello using Native Boost' > > to change the window title. Internally I just call the > Windows Win32-API function "SetWindowTextA" using the > window handle. > > If someone from other platforms implements an NBUnixWindow, > NBMacWindow, NBRiscOSWindow, ... we can also implement a > common interface class (NBPharoWindow for example). > > Hope this helps a little bit > > Bye > T. > I downloaded the NBCog.exe and was able to execute the 'NBWin32Window getFocus setWindowText: 'Hello using Native Boost' example you showed above. It looks me to like they are direct calls to the Windows API which don't require any external DLLs other the built in Windows ones.. However on Linux would that mean it may be necessary to use different code for Gnome or KDE/Qt for instance, or use some other native or crossplatform widgetset like Wx? -- Frank Church ======================= http://devblog.brahmancreations.com

Jan. 11, 2013

Re: [Pharo-project] SmalltalkHub upgrade

by GÃ¶ran Krampe

Hi Nicolas! On 01/11/2013 06:57 PM, Nicolas Petton wrote: > Guys, > > SmalltalkHub just got upgraded to version 0.9. This version includes a Great! Just a few things: - The explore page, I presume it "only" shows some recents, right? I mean, I though I could browse or see the full list of users/projects etc, but AFAICT I can not yet? - Is the idea to also offer "regular URLs" for some entry points? To enable google indexing etc? regards, GÃ¶ran

Jan. 11, 2013

Re: [Pharo-project] Fwd: How can the main window title in Squeak and Pharo be set?

by Eliot Miranda

On Fri, Jan 11, 2013 at 5:34 AM, Torsten Bergmann <astares(a)gmx.de> wrote: > From the history of Squeak and Pharo you can: > > 1. Squeak.exe (VM for Windows) was always able to set this using > the Setting "WindowTitle" in Pharo.ini - see > http://squeakvm.org/win32/settings.html > > This was implemented by Andreas Raab (maintainer of SqueakVM) > > 2. Later there was the idea in Squeak for a project > called "Areithfa Ffenestri" that should add more > support code to Squeak to allow access to the > native window or open new ones: > > http://wiki.squeak.org/squeak/3862 > > This is a VM plugin that is not in all VM's and even after > years AFAIK not fully implemented on all platforms. > > If it is available then you can do what Bert Freudenberg > suggested here: > > > http://lists.squeakfoundation.org/pipermail/squeak-dev/2013-January/167766.… > > Dont know if the Pharo VM maintainers added this plugin > too. You have to ask Igor or Esteban. > > 3. While Squeak tries to stay platform independent and > encapsulate platform dependent logic mostly into VM plugins > to unify the access there is some other idea in Pharo now: > > With the growing need to easily access platform logic > of the underlying OS or access external libraries written in > other languages there is a new FFI plugin which is > (since Pharo 2.0) will be included in the standard distribution. > > This new Foreign Function Interface (FFI) is called > NativeBoost and will move more logic into Smalltalk > itself. So you dont have to write/compile a plugin. > > You just need a VM with NativeBoost support (NBCog.exe on Windows) > > Using native Boost (when in Pharo 2.0) you can (already!) > write: > > NBWin32Window getFocus setWindowText: 'Hello using Native Boost' > > to change the window title. Internally I just call the > Windows Win32-API function "SetWindowTextA" using the > window handle. > > If someone from other platforms implements an NBUnixWindow, > NBMacWindow, NBRiscOSWindow, ... we can also implement a > common interface class (NBPharoWindow for example). > and an additional piece of history is that a number of plugins, including the HostWindowPlugin, were enhanced at Qwaq/Teleplace (now 3d ICC), in a cross-platform manner since we supported Mac and Windows initially and later had a linux prototype. The code for some of these enhanced plugins, including the HostWindowPlugin, was released along with Cog, which has an MIT license. So if you mine the COg branch you'll find code that can be folded back into trunk you'll get the enhanced functionality. For the Qwaq/Teleplace HostWindowPlugin that included setting the window title, repositioning and resizing the main window, querying its size, etc. > Hope this helps a little bit > +1. -- best, Eliot

Jan. 11, 2013

Re: [Pharo-project] SmalltalkHub upgrade

by Esteban A. Maringolo

Once all the files are loaded it works really fast. Congratulations :) One thing that's counter-intuitive is the search feature. By default I would search for Packages/Projects and not Users/Teams. I wouldn't mind if the results are for both, though. Regards! Esteban A. Maringolo 2013/1/11 Nicolas Petton <petton.nicolas(a)gmail.com>: > Guys, > > SmalltalkHub just got upgraded to version 0.9. This version includes a > lot of changes under the hood, as well as new features and bug fixes: > > New major features: > > - You can now register teams (see the RMoD team > http://smalltalkhub.com/#!/~RMoD) > - Projects can now be private > - The homepage and header have been updated > - SmalltalkHub now includes an (unfinished) "explore" page > (http://smalltalkhub.com/#!/explore) > - and... SmalltalkHub has a new 404 page :-) > (http://smalltalkhub.com/#!/~foo/bar) > > Updates: > > - Mongo has been updated to version 2.0 > - The production image is a Pharo 1.4 > > Important bug fixes: > > - "disappearing" projects from user dashboard > - mcz files larger than 6Mb could not be uploaded > > > Cheers, > Nico >

Jan. 11, 2013

Re: [Pharo-project] SmalltalkHub upgrade

by Norbert Hartl

Nico, that's a big leap for smalltalk. Well done! Makes us look more modern now :) Am 11.01.2013 um 18:57 schrieb Nicolas Petton <petton.nicolas(a)gmail.com>: > Guys, > > SmalltalkHub just got upgraded to version 0.9. This version includes a > lot of changes under the hood, as well as new features and bug fixes: > > New major features: > > - You can now register teams (see the RMoD team > http://smalltalkhub.com/#!/~RMoD) > - Projects can now be private > - The homepage and header have been updated > - SmalltalkHub now includes an (unfinished) "explore" page > (http://smalltalkhub.com/#!/explore) > - and... SmalltalkHub has a new 404 page :-) > (http://smalltalkhub.com/#!/~foo/bar) > Cool page. But I also like the design of http://smalltalkhub.com/foo/bar pages ;) > Updates: > > - Mongo has been updated to version 2.0 > - The production image is a Pharo 1.4 > > Important bug fixes: > > - "disappearing" projects from user dashboard > - mcz files larger than 6Mb could not be uploaded > Norbert

Jan. 11, 2013

[Pharo-project] SmalltalkHub upgrade

by Nicolas Petton

Guys, SmalltalkHub just got upgraded to version 0.9. This version includes a lot of changes under the hood, as well as new features and bug fixes: New major features: - You can now register teams (see the RMoD team http://smalltalkhub.com/#!/~RMoD) - Projects can now be private - The homepage and header have been updated - SmalltalkHub now includes an (unfinished) "explore" page (http://smalltalkhub.com/#!/explore) - and... SmalltalkHub has a new 404 page :-) (http://smalltalkhub.com/#!/~foo/bar) Updates: - Mongo has been updated to version 2.0 - The production image is a Pharo 1.4 Important bug fixes: - "disappearing" projects from user dashboard - mcz files larger than 6Mb could not be uploaded Cheers, Nico

Jan. 11, 2013

Re: [Pharo-project] Fwd: How can the main window title in Squeak and Pharo be set?

by Frank Church

I tested the Windows version and it works in both 1.4 and 2.0. HostWindowPlugin is listed in the available plugins. It is not in Ubuntu Linux though. Is the HostWindowPlugin part of the CogVM.exe itself? i don't see any dlls with that name. On 11 January 2013 13:22, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > yep... works for me (in Mac) > > > On Fri, Jan 11, 2013 at 2:17 PM, Frank Church <vfclists(a)gmail.com> wrote: >> >> On 11 January 2013 12:43, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: >> > is >> > >> > Smalltalk vm version >> > >> > and which OS are you using? I tested it on mac and linux at the moment >> > (more >> > than a year ago). No idea if it will work on windows too >> > >> > >> >> It is the the current on the Pharo home page - >> http://gforge.inria.fr/frs/download.php/31258/Pharo-1.4-14557-OneClick.zip >> >> Smalltalk vm version >> 'CoInterpreter VMMaker-oscog-EstebanLorenzano.161 uuid: >> 8e0c22c3-b48d-4d8d-a7f9-8a75dc246f28 Jul 18 2012, >> StackToRegisterMappingCogit VMMaker-oscog-EstebanLorenzano.161 uuid: >> 8e0c22c3-b48d-4d8d-a7f9-8a75dc246f28 Jul 18 2012, >> https://git.gitorious.org/cogvm/blessed.git Commit: >> 5151310c41b08f55b70e9c6250711cb1f3672ce7 Date: 2012-07-18 14:06:15 >> +0200 By: Camillo Bruni <camillobruni(a)gmail.com>' >> >> >> >> > >> > On Fri, Jan 11, 2013 at 1:36 PM, Frank Church <vfclists(a)gmail.com> >> > wrote: >> >> >> >> On 11 January 2013 12:06, Esteban Lorenzano <estebanlm(a)gmail.com> >> >> wrote: >> >> > Is most probably because you are using wrong vm. Which one are you >> >> > using? >> >> > >> >> > >> >> >> >> I'm using Pharo 1.4 and 2.0. I am not quite sure about the VM though. >> >> What do I have to check for? Is there a command for that? >> >> >> >> When I inspect 'SmalltalkImage current listBuiltinModules' a number >> >> of the modules listed have VMMaker-oscog-EstebanLorenzano.166 in their >> >> name. >> >> >> >> > On Fri, Jan 11, 2013 at 1:02 PM, Frank Church <vfclists(a)gmail.com> >> >> > wrote: >> >> >> >> >> >> On 11 January 2013 11:46, Esteban Lorenzano <estebanlm(a)gmail.com> >> >> >> wrote: >> >> >> > Hi Frank, >> >> >> > >> >> >> > I answered in pharo-users list: >> >> >> > >> >> >> > DisplakyScreen hostWindowTitle: 'My Title'. >> >> >> > >> >> >> > >> >> >> >> >> >> I have tried it (corrected of course) DisplayScreen hostWindowTitle: >> >> >> 'My Title'. and it has no effect in both Pharo 1.4 and 2.0. It >> >> >> doesn't >> >> >> generate an error message but nothing happens. >> >> >> >> >> >> Is that because the mentioned HostWindowPlugin is not installed in >> >> >> my >> >> >> images? >> >> >> >> >> >> > >> >> >> > On Fri, Jan 11, 2013 at 12:43 PM, Frank Church >> >> >> > <vfclists(a)gmail.com> >> >> >> > wrote: >> >> >> >> >> >> >> >> I asked this on pharo-users but it seems to belong here as it >> >> >> >> looks >> >> >> >> like it not implemented or easily accessed in Pharo. >> >> >> >> >> >> >> >> >> >> >> >> ---------- Forwarded message ---------- >> >> >> >> From: Frank Church <vfclists(a)gmail.com> >> >> >> >> Date: 10 January 2013 16:40 >> >> >> >> Subject: How can the main window title in Squeak and Pharo be >> >> >> >> set? >> >> >> >> To: A friendly place where any question about pharo is welcome >> >> >> >> <pharo-users(a)lists.gforge.inria.fr>, The general-purpose Squeak >> >> >> >> developers list <squeak-dev(a)lists.squeakfoundation.org> >> >> >> >> >> >> >> >> >> >> >> >> How can the main window title in Squeak and Pharo be set? >> >> >> >> >> >> >> >> In Pharo I thought it could be set in the System -> Settings Menu >> >> >> >> but >> >> >> >> couldn't find anything there. >> >> >> >> >> >> >> >> Can it be set only in code? >> >> >> >> >> >> >> >> >> >> >> >> -- >> >> >> >> Frank Church >> >> >> >> >> >> >> >> ======================= >> >> >> >> http://devblog.brahmancreations.com >> >> >> >> >> >> >> >> >> >> >> >> -- >> >> >> >> Frank Church >> >> >> >> >> >> >> >> ======================= >> >> >> >> http://devblog.brahmancreations.com >> >> >> >> >> >> >> > >> >> >> >> >> >> >> >> >> >> >> >> -- >> >> >> Frank Church >> >> >> >> >> >> ======================= >> >> >> http://devblog.brahmancreations.com >> >> >> >> >> > >> >> >> >> >> >> >> >> -- >> >> Frank Church >> >> >> >> ======================= >> >> http://devblog.brahmancreations.com >> >> >> > >> >> >> >> -- >> Frank Church >> >> ======================= >> http://devblog.brahmancreations.com >> > -- Frank Church ======================= http://devblog.brahmancreations.com

Jan. 11, 2013

Re: [Pharo-project] Smalltalkhub is back online!

by Serge Stinckwich

Great, I love Explore ! Thank you. On Fri, Jan 11, 2013 at 6:24 PM, Nicolas Petton <petton.nicolas(a)gmail.com> wrote: > Yay! > > Nico > > -- > Nicolas Petton > http://nicolas-petton.fr > -- Serge Stinckwich UMI UMMISCO 209 (IRD/UPMC) Every DSL ends up being Smalltalk http://doesnotunderstand.org/

Jan. 11, 2013

[Pharo-project] Smalltalkhub is back online!

by Nicolas Petton

Yay! Nico -- Nicolas Petton http://nicolas-petton.fr

Jan. 11, 2013