November 2014 - Pharo-dev - lists.pharo.org

[pharo-project/pharo-core]

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Branch: refs/tags/40372 Home: https://github.com/pharo-project/pharo-core

Nov. 18, 2014

[ANN] SciSmalltalk v0.16

by Serge Stinckwich

Dear all, we are to happy to announce SciSmalltalk v0.16 SciSmalltalk is a Smalltalk project, similar to existing scientific libraries like NumPy, SciPy for Python or SciRuby for Ruby. SciSmalltalk already provide the following basic functionalities: - complex and quaternions extensions, - random number generators, - fuzzy algorithms, - Didier Besset's numerical methods, - Ordinary Differential Equation (ODE) Solver. Version 0.16 includes updates from Werner Kassens to several packages, the work Nicolas Cellier about arbitrary precision floats. SciSmalltalk project web page is here: https://github.com/SergeStinckwich/SciSmalltalk All the code is available under the MIT licence. We have more than 563 green unit tests and we run a CI job here: https://ci.inria.fr/pharo-contribution/job/SciSmalltalk/ This version should work on Pharo 3.0/4.0 and also Squeak 4.5 (to be confirmed). We are looking for more code contributions and also tests, documentation ! Join the mailing-list : https://groups.google.com/forum/#!forum/scismalltalk -- Serge Stinckwich UCBN & UMI UMMISCO 209 (IRD/UPMC) Help fight Ebola by joining the Computing for Ebola Challenge http://bit.ly/1oEdBag

Nov. 18, 2014

Re: [Pharo-dev] GLViewportMorph>>#layoutInBounds:

by Igor Stasenko

On 18 November 2014 06:58, Yuriy Tymchuk <yuriy.tymchuk(a)me.com> wrote: > Yes, true, but if I want height to be flexible (maybe Iâm not good in > spec) and have a row that has fixed height and then this morph which > adjusts. It works well after it opens, but when it opens you get errorâ¦ > Does it make sense to add to layoutInBounds: check if the bounds are > visible, otherwise there is no reason to layout anything? > > it makes sense to not create opengl object(s) with null dimensions, to avoid errors. > On 18 Nov 2014, at 00:23, Nicolai Hess <nicolaihess(a)web.de> wrote: > > 2014-11-17 22:52 GMT+01:00 Yuriy Tymchuk <yuriy.tymchuk(a)me.com>: > >> Hi, >> >> can someone advise me how to deal with one issue. >> >> I put Roassal3D morph is a spec composite model, and when I open the >> window I get 'Frame buffer is incomplete: >> GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENTâ error because >> GLViewportMorph>>#layoutInBounds: bounds attribute has a zero coordinate. >> Should there be a guard in the method of GLViewportMorph, or I should do >> something in Spec? >> >> Uko >> > > Works for me, as long as I add a height (or width) in the spec layout: > > ^ SpecLayout composed > newColumn: [ :column | > column > add: #view3d height:80 ]; > yourself > > (view3d is a Roassal3DModel > view3d := self instantiate: Roassal3DModel. > view3d view: > (R3View new > add: R3CubeShape element; > addInteraction: R3MKControl). > > ) > > > -- Best regards, Igor Stasenko.

Nov. 18, 2014

Re: [Pharo-dev] GLViewportMorph>>#layoutInBounds:

by Yuriy Tymchuk

Yes, true, but if I want height to be flexible (maybe Iâm not good in spec) and have a row that has fixed height and then this morph which adjusts. It works well after it opens, but when it opens you get errorâ¦ Does it make sense to add to layoutInBounds: check if the bounds are visible, otherwise there is no reason to layout anything? > On 18 Nov 2014, at 00:23, Nicolai Hess <nicolaihess(a)web.de> wrote: > > 2014-11-17 22:52 GMT+01:00 Yuriy Tymchuk <yuriy.tymchuk(a)me.com <mailto:yuriy.tymchuk@me.com>>: > Hi, > > can someone advise me how to deal with one issue. > > I put Roassal3D morph is a spec composite model, and when I open the window I get 'Frame buffer is incomplete: GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENTâ error because GLViewportMorph>>#layoutInBounds: bounds attribute has a zero coordinate. Should there be a guard in the method of GLViewportMorph, or I should do something in Spec? > > Uko > > Works for me, as long as I add a height (or width) in the spec layout: > > ^ SpecLayout composed > newColumn: [ :column | > column > add: #view3d height:80 ]; > yourself > > (view3d is a Roassal3DModel > view3d := self instantiate: Roassal3DModel. > view3d view: > (R3View new > add: R3CubeShape element; > addInteraction: R3MKControl). > > )

Nov. 18, 2014

Re: [Pharo-dev] GLViewportMorph>>#layoutInBounds:

by Nicolai Hess

2014-11-17 22:52 GMT+01:00 Yuriy Tymchuk <yuriy.tymchuk(a)me.com>: > Hi, > > can someone advise me how to deal with one issue. > > I put Roassal3D morph is a spec composite model, and when I open the > window I get 'Frame buffer is incomplete: > GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENTâ error because > GLViewportMorph>>#layoutInBounds: bounds attribute has a zero coordinate. > Should there be a guard in the method of GLViewportMorph, or I should do > something in Spec? > > Uko > Works for me, as long as I add a height (or width) in the spec layout: ^ SpecLayout composed newColumn: [ :column | column add: #view3d height:80 ]; yourself (view3d is a Roassal3DModel view3d := self instantiate: Roassal3DModel. view3d view: (R3View new add: R3CubeShape element; addInteraction: R3MKControl). )

Nov. 17, 2014

GLViewportMorph>>#layoutInBounds:

by Yuriy Tymchuk

Hi, can someone advise me how to deal with one issue. I put Roassal3D morph is a spec composite model, and when I open the window I get 'Frame buffer is incomplete: GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENTâ error because GLViewportMorph>>#layoutInBounds: bounds attribute has a zero coordinate. Should there be a guard in the method of GLViewportMorph, or I should do something in Spec? Uko

Nov. 17, 2014

Re: [Pharo-dev] [NB] NativeBoost and optCoerceNilToNull

by Max Leske

> On 17.11.2014, at 00:32, Nicolai Hess <nicolaihess(a)web.de> wrote: > > > > 2014-11-16 19:11 GMT+01:00 Max Leske <maxleske(a)gmail.com <mailto:maxleske@gmail.com>>: > >> On 15.11.2014, at 22:28, Igor Stasenko <siguctua(a)gmail.com <mailto:siguctua@gmail.com>> wrote: >> >> >> >> On 15 November 2014 15:53, Max Leske <maxleske(a)gmail.com <mailto:maxleske@gmail.com>> wrote: >> Once again Iâm struggling with NativeBoost. Iâm trying to use optCoerceNilToNull with this function: >> >> ^self call: #(LGitReturnCodeEnum git_commit_create( >> LGitId * theCommitId, >> LGitRepository repo, >> String update_ref, >> LGitSignature * theAuthor, >> LGitSignature * theCommitter, >> String message_encoding, >> String theMessage, >> LGitTree theTree, >> int parent_count, >> LGitCommit * parentsPointer)) options: #( optCoerceNilToNull ) >> >> The last argument can be NULL, per documentation, (no parents). >> LGitCommit is a subclass of NBExternalObject and apparently NBExternalObjctType>>pushAsPointer: does *not* use the optCoerceNilToNull option (the super implementation in NBExternalType>>pushAsPointer: however does). The upshot of course is that the call fails with âan instance of LGitCommit expectedâ. >> >> My questions: >> - The documentation says: >> >> "#optCoerceNilToNull" >> "passing nil as a pointer-type argument, converts it to C NULL â >> >> but apparently this doesnât apply to every pointer type. Should the documentation be updated? >> - Why does NBExternlObjectType not use optCoerceNilToNull? I donât want to use tricks to pass null if I donât have to. >> >> perhaps because it is not there? :) >> So, lets add it. > > Yay! :) I have zero assembly skillsâ¦ Iâve tried the following but then get an âundefined label done18â error: > > > if coerceNilToNull is set *and* the argument is indeed nil, you want to jump over all other operations on this argument (see below). > (and if coerceNilToNull is set, and the argument is not nil, you should still verify the class of the oop, this is missing > in your code!) Thatâs true, thanks. > > > > NBExternalObject>>pushAsPointer: gen > "push a pointer to handle value" > | asm proxy oop notNil done | > > proxy := gen proxy. > asm := gen asm. > > <<<<<<<<<<<<<< new > > done := asm uniqueLabelName: 'doneâ. > > >>>>>>>>>>>>>>> new > > oop := gen reserveTemp. > loader emitLoad: gen to: oop. > > <<<<<<<<<<<<<< new > > "handle nils, if we care" > gen optCoerceNilToNull > ifTrue: [ > notNil := asm uniqueLabelName: 'notNil'. > proxy nilObject. > asm cmp: asm EAX with: oop; > jne: notNil; > xor: asm EAX with: asm EAX; > jmp: done; > label: notNil ] > ifFalse: [ > "we can skip class verification, if loader loads receiver, since nothing to fear there" > loader isReceiver ifFalse: [ > self verifyClassOf: oop is: objectClass generator: gen. > ] ]. > > >>>>>>>>>>>>>>> new > > proxy fetchPointer: (self handleIvarIndex) ofObject: oop. "handle ivar" > proxy varBytesFirstFieldOf: asm EAX. "handle value ptr" > > "done label here:" > asm label: done. > > asm push: asm EAX. > > gen releaseTemps: 1. > > >> >> - Related: there are instances where even non-pointer arguments are allowed to be NULL. Why does optCoerceNilToNull only work for pointer types? >> >> >> like what? Suppose the argument type is a structure, e.g >> "struct foo bar", that is non-pointer type. What in this case the NULL value for the structure? > > Ok, I think I understand. Are you saying that, since NULL is a macro, you have no way of telling during runtime how NULL is defined? For a pointer it is simply 0 or (void *) 0, but for a non pointer it depends on the context. Is that about right? > >> >> Igor! Help! :) >> >> Cheers, >> Max >> >> >> >> >> -- >> Best regards, >> Igor Stasenko.

Nov. 17, 2014

Re: [Pharo-dev] Julia vs Pharo

by Frank Shearar

On 17 November 2014 16:05, Serge Stinckwich <serge.stinckwich(a)gmail.com> wrote: > On Mon, Nov 17, 2014 at 5:01 PM, werner kassens <wernerk740(a)gmail.com> wrote: >>>I never heard about this one. >> >> no wonder<g>, i got the name wrong, it was helvetia > > Ok, this is about domain-specific languages not multiple dispatch. Indeed! http://www.laputan.org/reflection/Foote-Johnson-Noble-ECOOP-2005.html describes an approach to implementing multiple dispatch (effectively by currying multiple dispatch into a sequence of single dispatches). frank > -- > Serge Stinckwich > UCBN & UMI UMMISCO 209 (IRD/UPMC) > Help fight Ebola by joining the Computing for Ebola Challenge > http://bit.ly/1oEdBag >

Nov. 17, 2014

Re: [Pharo-dev] [Vm-dev] OSX 10.9 PharoVM build failure workarounds

by Max Leske

You can use my scripts if you like: http://github.com/theseion/stuff.git <http://github.com/theseion/stuff.git> I use them to build and update my VMs for libgit2. > On 17.11.2014, at 17:28, Ben Coman <btc(a)openInWorld.com> wrote: > > Okay, got it. I don't remember installing SDK 10.9 so I had assume it came as part of XCode (but that could be my failing memory) > Thanks for the clarification. > > Now even with my deviation from the instructions, it was fairly straight forward. Nice setup. > cheers -ben > > Esteban Lorenzano wrote: >> it is not a discrepancy, is two different things >> 1) Install latest Xcode. 2) Download SDK 10.6 >> :) >> Esteban >>> On 17 Nov 2014, at 17:17, Ben Coman <btc(a)openInWorld.com> wrote: >>> >>> Whoops. I need to read it more carefully. But there is a discrepancy, it says "Download the latest" and references 10.6. >>> >>> Ben Coman wrote: >>>> You've lost me. That README.md were the instructions I used. Did I miss something, or do you mean I should add notes to it ? >>>> cheers -ben >>>> Esteban Lorenzano wrote: >>>>> Hi, >>>>> you have to check the README of https://github.com/pharo-project/pharo-vm :) >>>>> >>>>> Esteban >>>>> >>>>> >>>>> >>>>>> On 17 Nov 2014, at 16:58, Ben Coman <btc(a)openInWorld.com <mailto:btc@openInWorld.com>> wrote: >>>>>> >>>>>> >>>>>> I followed the instructions at https://github.com/pharo-project/pharo-vm >>>>>> to build the Pharo VM. In generator.image I evaluated... >>>>>> PharoVMBuilder buildMacOSX32. >>>>>> then >>>>>> cd ../build >>>>>> bash build.sh >>>>>> >>>>>> After cmake finished its checks, it tried to compile freetype (2.4.9) but gets errors... >>>>>> >>>>>> *Generating /Users/ben/Repos/pharo-vm/results/Pharo.app/Contents/MacOS/Plugins/libfreetype.6.dylib* >>>>>> clang: warning: no such sysroot directory: >>>>>> '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.6.sdk' >>>>>> **fatal error: **'math.h' file not found* >>>>>> >>>>>> >>>>>> And indeed, I don't have >>>>>> ../MacOSX.platform/Developer/SDKs/MacOSX10.6.sdk >>>>>> I have >>>>>> ../MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk >>>>>> >>>>>> So updating CMakeLists.txt as follows... >>>>>> + set(CMAKE_OSX_DEPLOYMENT_TARGET 10.9) >>>>>> + set(CMAKE_OSX_SYSROOT /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk) >>>>>> - set(CMAKE_OSX_DEPLOYMENT_TARGET 10.5) >>>>>> - set(CMAKE_OSX_SYSROOT /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.6.sdk) >>>>>> allowed the build to progress further. >>>>>> >>>>>> ========= >>>>>> >>>>>> Then the build failed getting "too many errors" that looked somewhat like this... >>>>>> /Users/ben/Repos/pharo-vm/platforms/iOS/vm/OSX/sqSqueakOSXOpenGLView.m:208:18: error: use of undeclared identifier 'GL_TEXTURE_RECTANGLE_ARB' >>>>>> glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST); >>>>>> >>>>>> Tracked down a likely suspect here... >>>>>> https://codereview.chromium.org/587193005/diff/1/content/browser/compositor… >>>>>> And indeed editing... >>>>>> platforms/iOS/vm/OSX/sqSqueakOSXOpenGLView.m >>>>>> >>>>>> to add... >>>>>> #import <OpenGL/gl.h> >>>>>> >>>>>> gave me a working VM. >>>>>> >>>>>> >>>>>> ========= >>>>>> >>>>>> Should I log these somewhere ? >>>>>> cheers -ben > >

Nov. 17, 2014

Re: [Pharo-dev] [Vm-dev] OSX 10.9 PharoVM build failure workarounds

by Ben Coman

Okay, got it. I don't remember installing SDK 10.9 so I had assume it came as part of XCode (but that could be my failing memory) Thanks for the clarification. Now even with my deviation from the instructions, it was fairly straight forward. Nice setup. cheers -ben Esteban Lorenzano wrote: > > it is not a discrepancy, is two different things > > 1) Install latest Xcode. > 2) Download SDK 10.6 > > :) > > Esteban > >> On 17 Nov 2014, at 17:17, Ben Coman <btc(a)openInWorld.com> wrote: >> >> Whoops. I need to read it more carefully. But there is a discrepancy, it says "Download the latest" and references 10.6. >> >> Ben Coman wrote: >>> You've lost me. That README.md were the instructions I used. Did I miss something, or do you mean I should add notes to it ? >>> cheers -ben >>> Esteban Lorenzano wrote: >>>> Hi, >>>> you have to check the README of https://github.com/pharo-project/pharo-vm :) >>>> >>>> Esteban >>>> >>>> >>>> >>>>> On 17 Nov 2014, at 16:58, Ben Coman <btc(a)openInWorld.com <mailto:btc@openInWorld.com>> wrote: >>>>> >>>>> >>>>> I followed the instructions at https://github.com/pharo-project/pharo-vm >>>>> to build the Pharo VM. In generator.image I evaluated... >>>>> PharoVMBuilder buildMacOSX32. >>>>> then >>>>> cd ../build >>>>> bash build.sh >>>>> >>>>> After cmake finished its checks, it tried to compile freetype (2.4.9) but gets errors... >>>>> >>>>> *Generating /Users/ben/Repos/pharo-vm/results/Pharo.app/Contents/MacOS/Plugins/libfreetype.6.dylib* >>>>> >>>>> clang: warning: no such sysroot directory: >>>>> '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.6.sdk' >>>>> >>>>> **fatal error: **'math.h' file not found* >>>>> >>>>> >>>>> And indeed, I don't have >>>>> ../MacOSX.platform/Developer/SDKs/MacOSX10.6.sdk >>>>> I have >>>>> ../MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk >>>>> >>>>> So updating CMakeLists.txt as follows... >>>>> + set(CMAKE_OSX_DEPLOYMENT_TARGET 10.9) >>>>> + set(CMAKE_OSX_SYSROOT /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk) >>>>> >>>>> - set(CMAKE_OSX_DEPLOYMENT_TARGET 10.5) >>>>> - set(CMAKE_OSX_SYSROOT /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.6.sdk) >>>>> >>>>> allowed the build to progress further. >>>>> >>>>> ========= >>>>> >>>>> Then the build failed getting "too many errors" that looked somewhat like this... >>>>> /Users/ben/Repos/pharo-vm/platforms/iOS/vm/OSX/sqSqueakOSXOpenGLView.m:208:18: error: use of undeclared identifier 'GL_TEXTURE_RECTANGLE_ARB' >>>>> glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST); >>>>> >>>>> Tracked down a likely suspect here... >>>>> https://codereview.chromium.org/587193005/diff/1/content/browser/compositor… >>>>> >>>>> And indeed editing... >>>>> platforms/iOS/vm/OSX/sqSqueakOSXOpenGLView.m >>>>> >>>>> to add... >>>>> #import <OpenGL/gl.h> >>>>> >>>>> gave me a working VM. >>>>> >>>>> >>>>> ========= >>>>> >>>>> Should I log these somewhere ? >>>>> cheers -ben > >

Nov. 17, 2014