April 2018 - Pharo-users - lists.pharo.org

Re: [Pharo-users] [Pharo-dev] libfreetype6 missing in the dependencies of ubuntu Pharo distribution

by Holger Freyther

> On 27. Apr 2018, at 19:22, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: > I've installed both ( apt install pharo6-32-ui pharo6-64-ui ), but the font problem was present only for 32bit. > > Note that I was launching the VM packaged with ZeroConf installation, I've only used apt mainly to get all dependencies. > > Now I tried to also run "pharo6-32-ui Pharo.image" (and "pharo6-64-ui Pharo.image"), > and in both cases I got errror > > "/usr/bin/pharo6-32-ui: line 6: /usr/lib/i386-linux-gnu/pharo6-vm/pharo: No such file or directory > > and > > "/usr/bin/pharo6-64-ui: line 6: /usr/lib/x86_64-linux-gnu/pharo6-vm/pharo: No such file or directory What's missing is that pharo6-32-ui should depend on pharo6-32. And the later package has the dependency on libssl and libfreetype and provides the "pharo" binary. thanks for pointing that out and sorry you had to experience it.

April 27, 2018

Re: [Pharo-users] FileStream deprecation in Pharo7

by Sean P. DeNigris

Sven Van Caekenberghe-2 wrote > The answer is simple: use FileSystem, it has been in the image for years. IIUC the thrust of the question was how to get exactly that info most effectively to a naive user who runs into the deprecationâ¦ ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

April 27, 2018

Re: [Pharo-users] FileStream deprecation in Pharo7

by Holger Freyther

> On 27. Apr 2018, at 21:13, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > Holger, Sven! > The answer is simple: use FileSystem, it has been in the image for years. > > The 'Deep into Pharo' book has a chapter about it. > > Sven > > (Apart from that, you are right: we can always write more documentation). thank you for the answer and the pointer. I wondered how we could make the replacement discoverable in the image? It can be documentation but maybe we can make the Manifest more expressive? holger

April 27, 2018

Literals

by Debiller 777

You know, literals are quite useful in case when you want to shorten some object initialization. For example #() and {} for arrays and $[]for byte arrays. However, if there is a way to add custom literals, for example for sets (something like #{} I guess)? how to do it? and can some special kind of objects for creating literals easily be added to Pharo?

April 27, 2018

Re: [Pharo-users] FileStream deprecation in Pharo7

by Sven Van Caekenberghe

Holger, > On 27 Apr 2018, at 15:01, Holger Freyther <holger(a)freyther.de> wrote: > > tl;dr could we extend PackageManifest>>#isDeprecated to provide reasoning and pointers to potential replacements? > > I was loading some of my code into a Pharo7 image and while debugging noticed that FileStream is deprecated (text stroke through in the Playground). But neither the FileStream class comment nor the the ManifestDeprecatedFileStream have an indication of what to use instead. > > What do you think of making the deprecation notice carry more signal? E.g. provide reasoning of why it was removed ("simplification", "no replacement for XYZ", "Look at XYZ")? The answer is simple: use FileSystem, it has been in the image for years. The 'Deep into Pharo' book has a chapter about it. Sven (Apart from that, you are right: we can always write more documentation).

April 27, 2018

FileStream deprecation in Pharo7

by Holger Freyther

tl;dr could we extend PackageManifest>>#isDeprecated to provide reasoning and pointers to potential replacements? I was loading some of my code into a Pharo7 image and while debugging noticed that FileStream is deprecated (text stroke through in the Playground). But neither the FileStream class comment nor the the ManifestDeprecatedFileStream have an indication of what to use instead. What do you think of making the deprecation notice carry more signal? E.g. provide reasoning of why it was removed ("simplification", "no replacement for XYZ", "Look at XYZ")?

April 27, 2018

Re: [Pharo-users] [Voyage] Possible to save an OrderedCollection?

by Esteban Lorenzano

hi, what you need to save is the persistent object, the one marked as âisVoyageRootâ in class side. cheers, Esteban > On 27 Apr 2018, at 14:44, sergio ruiz <sergio.rrd(a)gmail.com> wrote: > > > For some reason, I am not able to do this: > > Object subclass: #TestBox > instanceVariableNames: 'origin corner pointList' > classVariableNames: '' > poolDictionaries: '' > category: 'PrintBot-Modelsâ! > > initialize > pointList := OrderedCollection new. > > > If i do something like below, I donât see the list of points ever show up in mongo.. > > Ideas? > > b := TestBox new. > b save. > p1 := Point x:0 y:0. > p1 save. > p2 := Point x:12 y:343. > p2 save. > > b origin: p1. > b corner: p2. > > b save. > > b pointList add: p1. > b save. > b pointList add: p2. > b save. > > > > ---- > peace, > sergio > photographer, journalist, visionary > > Public Key: http://bit.ly/29z9fG0 <http://bit.ly/29z9fG0> > #BitMessage BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV > http://www.codeandmusic.com <http://www.codeandmusic.com/> > http://www.twitter.com/sergio_101 <http://www.twitter.com/sergio_101> > http://www.facebook.com/sergio101 <http://www.facebook.com/sergio101>

April 27, 2018

[Voyage] Possible to save an OrderedCollection?

by sergio ruiz

For some reason, I am not able to do this: Object subclass: #TestBox instanceVariableNames: 'origin corner pointList' classVariableNames: '' poolDictionaries: '' category: 'PrintBot-Modelsâ! initialize pointList := OrderedCollection new. If i do something like below, I donât see the list of points ever show up in mongo.. Ideas? b := TestBox new. b save. p1 := Point x:0 y:0. p1 save. p2 := Point x:12 y:343. p2 save. b origin: p1. b corner: p2. b save. b pointList add: p1. b save. b pointList add: p2. b save. ---- peace, sergio photographer, journalist, visionary Public Key:Â http://bit.ly/29z9fG0 #BitMessageÂ BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV http://www.codeandmusic.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

April 27, 2018

Re: [Pharo-users] UFFI - Could not coerce arguments

by Esteban Lorenzano

hi, > On 27 Apr 2018, at 13:06, Ben Coman <btc(a)openInWorld.com> wrote: > > > > On 27 April 2018 at 17:23, Serge Stinckwich <serge.stinckwich(a)gmail.com <mailto:serge.stinckwich@gmail.com>> wrote: > I would like to pass a pointer to an array of pointers to a FFI call and I have problems ... > > âI have this method: > > runOutputs: aTF_OutputArray size: anInteger > | status outvalues | > status := TF_Status create. > outvalues := FFIExternalArray externalNewType: 'TF_Tensor*' size: anInteger. > self library > runSession: self > options: FFIExternalObject null > inputs: FFIExternalObject null > values: FFIExternalObject null > > Sorry I'm (again) not addressing your question :P, > but please let me piggyback learning something. > > @All, What is the advantage of "FFIExternalObject null" ? > I was under the impression that in general "nil" could be used in similar situations. nope. NULL != nil. nil = the instance of UndefinedObject NULL = external address pointing to 0. cheers, Esteban > > cheers -ben > > count: 0 > outputs: aTF_OutputArray getHandle > values: outvalues getHandle > count: anInteger > targets: FFIExternalObject null > count: 0 > metadata: FFIExternalObject null > status: status. > status check. > ^ outvalues > > âthe FFI call is like that : > > runSession: aTF_Session > options: opsTF_Buffer > inputs: inTF_OutputArray values: inTF_TensorArray count: inCount > outputs: outTF_OutputArray values: outTF_TensorArrayPtr count: outCount > targets: aTF_OperationArray count: targetCount > metadata: metaTF_Buffer > status: aTF_Status > > "F_CAPI_EXPORT extern void TF_SessionRun( > TF_Session* session, > // RunOptions > const TF_Buffer* run_options, > // Input tensors > const TF_Output* inputs, TF_Tensor* const* input_values, int ninputs, > // Output tensors > const TF_Output* outputs, TF_Tensor** output_values, int noutputs, > // Target operations > const TF_Operation* const* target_opers, int ntargets, > // RunMetadata > TF_Buffer* run_metadata, > // Output status > TF_Status*);" > > ^ self > ffiCall: #(void TF_SessionRun #(TF_Session * aTF_Session, TF_Buffer * opsTF_Buffer, TF_Output * inTF_OutputArray, TF_Tensor * inTF_TensorArray, int inCount, TF_Output * outTF_OutputArray, TF_Tensor * outTF_TensorArrayPtr, int outCount, TF_Operation * aTF_OperationArray, int targetCount, TF_Buffer * metaTF_Buffer, TF_Status * aTF_Status)) > module: TensorFlowCAPI > > TF_Tensor is an opaque object. > > I have an error: "Could not coerce arguments". > I guess this is related to the way I pass arguments to the FFI function ? > > -- > Serge Stinckwich > UMI UMMISCO 209 (SU/IRD/UY1) > "Programs must be written for people to read, and only incidentally for machines to execute." > http://www.doesnotunderstand.org/ <http://www.doesnotunderstand.org/>

April 27, 2018

Re: [Pharo-users] [Pharo-dev] libfreetype6 missing in the dependencies of ubuntu Pharo distribution

by Peter UhnÃ¡k

I've installed both ( apt install pharo6-32-ui pharo6-64-ui ), but the font problem was present only for 32bit. Note that I was launching the VM packaged with ZeroConf installation, I've only used apt mainly to get all dependencies. Now I tried to also run "pharo6-32-ui Pharo.image" (and "pharo6-64-ui Pharo.image"), and in both cases I got errror "/usr/bin/pharo6-32-ui: line 6: /usr/lib/i386-linux-gnu/pharo6-vm/pharo: No such file or directory and "/usr/bin/pharo6-64-ui: line 6: /usr/lib/x86_64-linux-gnu/pharo6-vm/pharo: No such file or directory Both directories contain the following files: B3DAcceleratorPlugin.so vm-display-fbdev.so vm-display-X11.so vm-sound-ALSA.so vm-sound-OSS.so vm-sound-pulse.so There is no "pharo" file anywhere in /usr Maybe elementary OS has some changes in the package manager, but I find that unlikely. "uname -a" even reports it as "16.04.1-Ubuntu" Peter On Fri, Apr 27, 2018 at 5:19 AM, Holger Freyther <holger(a)freyther.de> wrote: > > > > On 27. Apr 2018, at 04:55, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: > > > > Hi, > > > > I've just tried installing pharo from package manager on Elementary OS, > which is a ubuntu derivative. > > > > All went well, except fonts weren't working in 32 bit version, and I had > to install by hand "libfreetype6:i386" ... is it missing in the > dependencies? > > which package did you install? > > holger >

April 27, 2018