March 2017 - Pharo-dev - lists.pharo.org

How to use the serial port on MacOS X?

by olivier auverlot

Hi, I try to use the serial port to communicate with an Arduino. On Linux, no problemo. I can open the serial port with the following code: | serialPort baudRate comPortNumber | baudRate := 31250. comPort := '/dev/ttyACM0'. serialPort := SerialPort new baudRate: 31250; dataBits: 8; stopBitsType: 1; parityType: 0; yourself. "the port is closed to ensure that it will be free" serialPort close. (serialPort openPort: comPort) isNil ifTrue: [ ^self error: 'COM port not available' ] ifFalse: [ serialPort inspect ]. serialPort close. But on MacOS X (10.11.6), the same code used with /dev/cu.usbmodel1411 doesn't run. The error is "Cannot open '/dev/cu.usbmodel1411'". I'm sure that is the correct serial port. If I type "more -f /dev/cu.usbmodel1411" in a terminal, the rx/tx leds of the Arduino are blink. Someone has an idea about this problem that is not specific of the Arduino but concerns the generic usage of the serial port with Pharo? Best regards Olivier ps: I can't test on Windows but I'm interested by a feedback.

March 12, 2017

Re: [Pharo-dev] Did we lose edit-in-place in GT Inspector in Pharo 6?

by Sean P. DeNigris

Tudor Girba-2 wrote > this feature is temporarily not available due to the move to FastTable :( Tudor Girba-2 wrote > but we are working on adding it back. :) I use this all the time to e.g. nil out an inst var to re-lazily-initialize. I noticed it was missing (after trying to press the mouse button harder for a few minutes... sigh) within minutes of testing out Pharo 6. There was no setter, so I ended up doing an ugly, and time-consumiung, `#instVarNamed:put:`. Will it be re-added in 6 before the release? I'd say a lost key feature is a bug, no? ----- Cheers, Sean -- View this message in context: http://forum.world.st/Did-we-lose-edit-in-place-in-GT-Inspector-in-Pharo-6-… Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

March 12, 2017

Re: [Pharo-dev] 60437 empty catalog

by Esteban Lorenzano

I introduced a change there (to force a cache per session and not per day as before). And I discovered than forcing an update in Catalog Browser empties the cache without refilling itâ¦ so it has to be my change :S I will review it tomorrow. Esteban > On 11 Mar 2017, at 15:54, Ben Coman <btc(a)openInWorld.com> wrote: > > > > On Sat, Mar 11, 2017 at 10:41 PM, David T. Lewis <lewis(a)mail.msen.com <mailto:lewis@mail.msen.com>> wrote: > > On Sat, Mar 11, 2017 at 10:14:58PM +0800, Ben Coman wrote: > >> Anyone else getting an empty Catalog? > >> > >> In 60437 & CoInterpreter * VMMaker.oscog-eem.2143 uuid: > >> fe064b6b-e530-4766-837d-799ffe1e8dcd Mar 3 2017 > >> (i386itimer-201703031554.zip) > >> > >> Sorry I'm too tired to bisect it myself right now. > >> (Just spent 10 hours sanding the wooden floors of my brothers house) > >> > > > > It looks ok to me. Try deleting the file from your local package cache, > > sometime an error condition can leave junk there. > > Thanks Dave. Testing again, from PharoLauncher > I do... Local/60437 > "Create an Image" > which essentially unzips 60437.zip with an empty package cache, > then Existing Images > 60437-01 > Launch. > Tools > Catalog > ==> still empty. > > PharoLauncher settings... > * Spur VM Full Path = /home/ben/.local/share/Pharo/VMs/i386itimer-201703031554/pharo > downloaded from... > * http://files.pharo.org/vm/pharo-spur32/linux/pharo-linux-i386itimer-2017030… <http://files.pharo.org/vm/pharo-spur32/linux/pharo-linux-i386itimer-2017030…> > > cheers -ben

March 12, 2017

Re: [Pharo-dev] image not opening.

by Guillermo Polito

Yeh, to be more precise, * the problem is that the image somehow got it's display size modified to a very small one. * And that happenned while building an image in the CI in headless mode. * If the same image is built locally in a vm launched in non-headless mode, the issue cannot be reproduced. So my conjecture is that - either the image is changing the display size while loading pillar (less likely and not reproduceable locally) - either the latest stable VM messes the display size in the image header when running on headless (this is yet to reproduce) On Sun, Mar 12, 2017 at 10:52 AM, stepharong <stepharong(a)free.fr> wrote: > guillermo was suspecting a problem with the interpretatin of the image > metadata > > Maybe related? >> http://forum.world.st/BUG-A-problem-with-callbacks-that-show >> s-up-in-64bits-but-is-on-32bits-too-td4938152.html >> >> On Sat, Mar 11, 2017 at 2:22 AM, Cyril Ferlicot >> <cyril.ferlicot(a)gmail.com> wrote: >> >>> >>> On ven. 10 mars 2017 at 18:42, stepharong <stepharong(a)free.fr> wrote: >>> >>>> >>>> We found the problem with Guillermo and this may be a problem of the >>>> last >>>> VM. >>>> >>>> The image got its starting window size really small: some pixels on some >>>> pixles. >>>> So may be the metadata of the image are systematically corrupted. >>>> >>>> Hi >>>> >>>> I have a jenkins that produce an image that does not start >>>> when I try to open it locally. >>>> >>>> Now if I take the image and load the "same" configuration I get a >>>> working >>>> image >>>> >>>> I have not idea how to debug that. >>>> >>>> Stef >>>> >>>> >>>> >>>> >>>> -- >>>> Using Opera's mail client: http://www.opera.com/mail/ >>>> >>> >>> >>> If it can help: here is the build: >>> >>> https://ci.inria.fr/pharo-contribution/job/OOnoz/ >>> >>> It is happening in almost all Pharo 6 builds >>> -- >>> Cheers >>> Cyril Ferlicot >>> >> >> > > -- > Using Opera's mail client: http://www.opera.com/mail/ > >

March 12, 2017

Re: [Pharo-dev] image not opening.

by stepharong

guillermo was suspecting a problem with the interpretatin of the image metadata > Maybe related? > http://forum.world.st/BUG-A-problem-with-callbacks-that-shows-up-in-64bits-… > > On Sat, Mar 11, 2017 at 2:22 AM, Cyril Ferlicot > <cyril.ferlicot(a)gmail.com> wrote: >> >> On ven. 10 mars 2017 at 18:42, stepharong <stepharong(a)free.fr> wrote: >>> >>> We found the problem with Guillermo and this may be a problem of the >>> last >>> VM. >>> >>> The image got its starting window size really small: some pixels on >>> some >>> pixles. >>> So may be the metadata of the image are systematically corrupted. >>> >>> Hi >>> >>> I have a jenkins that produce an image that does not start >>> when I try to open it locally. >>> >>> Now if I take the image and load the "same" configuration I get a >>> working >>> image >>> >>> I have not idea how to debug that. >>> >>> Stef >>> >>> >>> >>> >>> -- >>> Using Opera's mail client: http://www.opera.com/mail/ >> >> >> If it can help: here is the build: >> >> https://ci.inria.fr/pharo-contribution/job/OOnoz/ >> >> It is happening in almost all Pharo 6 builds >> -- >> Cheers >> Cyril Ferlicot > -- Using Opera's mail client: http://www.opera.com/mail/

March 12, 2017

Re: [Pharo-dev] Debugger: is there a way to skip a message?

by stepharong

On Sat, 11 Mar 2017 09:54:56 +0100, Tudor Girba <tudor(a)tudorgirba.com> wrote: > Ah, I got it. It is not supported at the moment and as far as I know, it > was not supported in the SpecDebugger either. I wonder if the old debugger got it and spec did not offer it. But yes it would be nice to have it (may be not as button) but as option. > > But, it would definitely be an interesting thing to have. > > Doru > > >> On Mar 11, 2017, at 9:24 AM, Nicolas Cellier >> <nicolas.cellier.aka.nice(a)gmail.com> wrote: >> >> Hi Stef, I guess what you want is something like: >> 1) step into >> 2) then return entered value like 'self'? >> but in a single action. >> >> 2017-03-11 8:18 GMT+01:00 Tudor Girba <tudor(a)tudorgirba.com>: >> Hi Stef, >> >> I am not sure I understand what you mean by "skip a messageâ. Is it >> different then âOverâ? >> >> Cheers, >> Doru >> >> >> > On Mar 10, 2017, at 9:20 PM, stepharong <stepharong(a)free.fr> wrote: >> > >> > Hi >> > >> > I need to skip message while debugging and I thought that it was >> possible. >> > May be I do not see it. >> > >> > Stef >> > >> > -- >> > Using Opera's mail client: http://www.opera.com/mail/ >> > >> >> -- >> www.tudorgirba.com >> www.feenk.com >> >> "Innovation comes in the least expected form. >> That is, if it is expected, it already happened." >> >> >> > > -- > www.tudorgirba.com > www.feenk.com > > "We can create beautiful models in a vacuum. > But, to get them effective we have to deal with the inconvenience of > reality." > > -- Using Opera's mail client: http://www.opera.com/mail/

March 12, 2017

Re: [Pharo-dev] Debugger: is there a way to skip a message?

by stepharong

Hi Like nicolas mentioned. My scenario was: I was debugging a process with intermediary results (files that the process was removing) and I wanted to keep the files (ie. not executing some messages that I knew where removing the resources) because I needed to check the status of the intermediary files. cop them from the shell but it was boring. I never thought that I would need that but I think that this is useful. Stef > Hi Stef, > > I am not sure I understand what you mean by "skip a messageâ. Is it > different then âOverâ? > > Cheers, > Doru > > >> On Mar 10, 2017, at 9:20 PM, stepharong <stepharong(a)free.fr> wrote: >> >> Hi >> >> I need to skip message while debugging and I thought that it was >> possible. >> May be I do not see it. >> >> Stef >> >> -- >> Using Opera's mail client: http://www.opera.com/mail/ >> > > -- > www.tudorgirba.com > www.feenk.com > > "Innovation comes in the least expected form. > That is, if it is expected, it already happened." > > -- Using Opera's mail client: http://www.opera.com/mail/

March 12, 2017

class selection is lost when browsing a method in and switching in hierarchy mode

by stepharong

Hi I have the impression that I found an really annoying glitch. - Take a class hierarchy in the middle - Select a class side method - Select the hierarchy buttong - normally the class you selected and (the class of the currently displayed is not selected anymore). https://pharo.fogbugz.com/f/cases/19828/Class-side-methods-hierarchy-select… --

March 12, 2017

Re: [Pharo-dev] Why do we have doublequoting for "?

by stepharong

On Sat, 11 Mar 2017 17:17:19 +0100, Tudor Girba <tudor(a)tudorgirba.com> wrote: > Hi Stef, > > I am still thinking about this point, but I do not have an intelligent > answer yet. I just wanted to say that I did not forget it :). :) > > Cheers, > Doru > > >> On Feb 26, 2017, at 11:16 PM, stepharong <stepharong(a)free.fr> wrote: >> >> I hate my mail client.... >> Apparently I wrote email to explain what I finally understood and it >> never sent it nor archive it :( >> So I will try to summarize it and take some time tomorrow to reexplain >> it. >> >> Now I understand why I got confused >> >> printit is currently a function from >> objects -> literals (this handles the self-evaluating objects) + (and >> this is unfortunate non literals such as string objects by opposition >> to literal strings) >> >> It means that there ares case where we can have >> object -> a string object (and not a literal) in that case we use the >> string object as a mediocre "reference" to the object. >> >> >> If we would have >> printgraphics >> we would have objects -> graphics and unknow objects would be >> represented by a little blue square and clicking on it would bring >> and object representation (inspectors or whatever) >> >> Now how to we improve the situation. I have the impression that it >> would be good to have instead of printOn: which is used to do too many >> things. >> >> - first printOn: should not be used for list/combo or any widgets (this >> will avoid some friends I know to get interfaces with ' inside their >> comboxchoice) but to use displayString >> >> - second I would introduce >> asLiteralOn: >> which garantee that you cannot escape >> >> this way printIt will only prints strings as literal strings and the >> contract is clear. >> >> objects -> literals (this handles the self-evaluating objects) >> >> 1 >> >>> 1 >> >> false >> >>> >> false >> >> but >> (Directory name: 'comics') >> >>> 'comics' >> >> { 1 . Browser new} >> >>> 'anArray with (1, a Browser') >> >> now we can ask ourselves if >> >> { (Directory name: 'comics') } >> >>> >> { 'comics' } I do not like it >> or >> >>> 'anArray with ( comics ) >> >> >> back to my confusion: >> >> I was confused about the fact that I was hijacking the textual >> representation >> 'comics' is not a directory but a string >> now may be I should have return a storeOn: representation >> or 'aDirectory (comics)' >> >> and introduce displayString >> 'comics' >> >> Probably that printOn: should not be used the way I did it. >> but I do not know. >> >> I think that this is a subtle domain and we should provide better >> guidelines. >> >> Do you understand my points? >> What do you think? >> >> Stef > > -- > www.tudorgirba.com > www.feenk.com > > "Presenting is storytelling." > -- Using Opera's mail client: http://www.opera.com/mail/

March 12, 2017

Crash

by stepharong

Pharo 6.0 Latest update: #60438 I was editing code and got a crash. I think that I'm using the latest vm (and I'm on el capitan) Image ----- /Users/ducasse/Workspace/FirstCircle/MyBooks/Bk-Writing/PillarHacking/ToHack/Pharo.image Pharo6.0 Latest update: #60438 Unnamed Virtual Machine --------------- /Applications/Pharo/2017-03-10-Pharo.app/Contents/MacOS/Pharo CoInterpreter * VMMaker.oscog-eem.2146 uuid: da6aee6e-4738-4161-b221-3c8135ac1bf7 Mar 10 2017 StackToRegisterMappingCogit * VMMaker.oscog-eem.2146 uuid: da6aee6e-4738-4161-b221-3c8135ac1bf7 Mar 10 2017 VM: 201703101242 https://github.com/pharo-project/pharo-vm.git $ Date: Fri Mar 10 13:42:34 2017 +0100 $ Plugins: 201703101242 https://github.com/pharo-project/pharo-vm.git $ Mac OS X built on Mar 10 2017 13:46:32 UTC Compiler: 4.2.1 Compatible Apple LLVM 7.3.0 (clang-703.0.31) VMMaker versionString VM: 201703101242 https://github.com/pharo-project/pharo-vm.git $ Date: Fri Mar 10 13:42:34 2017 +0100 $ Plugins: 201703101242 https://github.com/pharo-project/pharo-vm.git $ CoInterpreter * VMMaker.oscog-eem.2146 uuid: da6aee6e-4738-4161-b221-3c8135ac1bf7 Mar 10 2017 StackToRegisterMappingCogit * VMMaker.oscog-eem.2146 uuid: da6aee6e-4738-4161-b221-3c8135ac1bf7 Mar 10 2017 Stef

March 12, 2017