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

Re: [Pharo-project] A challenge for all who cares

by Guido Stepken

Am 20.02.2012 21:24, schrieb Igor Stasenko: > On 20 February 2012 21:18, Frank Shearar<frank.shearar(a)gmail.com> wrote: >> On 20 February 2012 19:41, Guido Stepken<gstepken(a)googlemail.com> wrote: >>> Am 20.02.2012 10:22, schrieb Edgar J. De Cleene: >>> >>> Yesterday in a response to Craig I said have a Cuis with a wiki on top and >>> this .image is 5 mb and run on a âmodernâ G4 400 mhz PowerMac. >>> >>> Thatâs is a beauty and the power of Cuis, thanks Juan for your reduced image >>> of 2 mb >>> >>> >>> Looks nice. >>> >>> World menu -> appearance -> set desktop color -> Error >>> >>> What i - never ever - understand is, why - when Smalltalk is a reflective >>> language and there are so mighty tools - like Moose - out there, able to >>> search the whole codebase for possible occurrences of "message not >>> understood"????? >> This is just a trivial application of the solution to the Halting >> Problem (left as an exercise for the reader). >> > I wonder, what kind of language solves that problem better than smalltalk does? > Apparently compilers can complain about using wrong type/name.. but they cannot > complain about null pointer(s).. they usually crash& bail to OS :) Its string>>base64Decoded error ... missing or removed library/class? No, this must not happen! -> Never ever! -> Develop the development process! Have fun, Guido Stepken > >> Or: if you want to avoid MNU, don't use a dynamically typed language. >> >> frank >> >>> This is no personal quality problem, this is a methodical problem. In the >>> whole Pharo team. "Wrong development process!" >>> >>> Please, again: "Develop the development process!" >>> >>> Have fun, Guido Stepken > >

Feb. 20, 2012

Re: [Pharo-project] how can I use Nautilus with OCompletion?

by Mariano Martinez Peck

Well...now somehow the completion dialog appears but it throws NautilusUI(Object)>>doesNotUnderstand: #selectedClassOrMetaClass in: openXMenuFor: anEditor | theMenu | self closeMenu. context := menuMorph ifNotNil: [menuMorph context] ifNil: [self contextClass controller: self class: self model selectedClassOrMetaClass source: anEditor text string position: anEditor startIndex - 1]. self editor: anEditor. self expand. theMenu := self menuMorph controller: self position: (anEditor selectionPosition: context completionToken). theMenu isClosed ifFalse: [menuMorph := theMenu]. menuMorph moveDown; moveDown. On Mon, Feb 20, 2012 at 9:47 PM, Mariano Martinez Peck < marianopeck(a)gmail.com> wrote: > > > On Mon, Feb 20, 2012 at 9:25 PM, Benjamin < > benjamin.vanryseghem.pharo(a)gmail.com> wrote: > >> Can you tell me how to load OCompletion please ? >> >> > fetch conf from MetacelloRepository and then: > > (ConfigurationOfOCompletion project version: #stable) load > > >> >> Ben >> >> On Feb 20, 2012, at 9:09 PM, Mariano Martinez Peck wrote: >> >> I just took the Nautilus from jenkins, installed OCompletion there and >> OCompletion seems to work fine everywhere in the image but not in Nautilus. >> In the code pane...it doesn't appear anything. So...is there a way to make >> OCompletion to work with Nautilus? >> >> Thanks! >> >> -- >> Mariano >> http://marianopeck.wordpress.com >> >> >> > > > -- > Mariano > http://marianopeck.wordpress.com > > -- Mariano http://marianopeck.wordpress.com

Feb. 20, 2012

[Pharo-project] Nautilus throws PluggableIconListMorph(Object)>>doesNotUnderstand: #detachAllKeymapCategories

by Mariano Martinez Peck

In showPackages: aBoolean self okToChange ifTrue: [ listElements := nil. list2Elements := nil. list detachAllKeymapCategories. list2 detachAllKeymapCategories. aBoolean ifTrue: [ self setPackageShorcutsTo: list. self setClassShorcutsTo: list2.] ifFalse: [| class | class := self selectedClass. classesSelection at: class put: true. self hierarchyClass: class . listElements := nil. list2Elements := nil. self showGroups ifTrue: [self showGroupsSilently: false]. self setPackageShorcutsTo: list2. self setClassShorcutsTo: list ]. listElements := nil. list2Elements := nil. self model showPackages: aBoolean. self changed: #groupsButtonLabel. self updateBothView. self changed: #toogleButtonState. self changedLabels ] ideas? -- Mariano http://marianopeck.wordpress.com

Feb. 20, 2012

Re: [Pharo-project] A challenge for all who cares

by Igor Stasenko

On 20 February 2012 22:07, Frank Shearar <frank.shearar(a)gmail.com> wrote: > On 20 February 2012 20:24, Igor Stasenko <siguctua(a)gmail.com> wrote: >> On 20 February 2012 21:18, Frank Shearar <frank.shearar(a)gmail.com> wrote: >>> On 20 February 2012 19:41, Guido Stepken <gstepken(a)googlemail.com> wrote: >>>> Am 20.02.2012 10:22, schrieb Edgar J. De Cleene: >>>> >>>> Yesterday in a response to Craig I said have a Cuis with a wiki on top and >>>> this .image is 5 mb and run on a âmodernâ G4 400 mhz PowerMac. >>>> >>>> Thatâs is a beauty and the power of Cuis, thanks Juan for your reduced image >>>> of 2 mb >>>> >>>> >>>> Looks nice. >>>> >>>> World menu -> appearance -> set desktop color -> Error >>>> >>>> What i - never ever - understand is, why - when Smalltalk is a reflective >>>> language and there are so mighty tools - like Moose - out there, able to >>>> search the whole codebase for possible occurrences of "message not >>>> understood"????? >>> >>> This is just a trivial application of the solution to the Halting >>> Problem (left as an exercise for the reader). >>> >> I wonder, what kind of language solves that problem better than smalltalk does? >> Apparently compilers can complain about using wrong type/name.. but they cannot >> complain about null pointer(s).. they usually crash & bail to OS :) > > The sad thing is that null pointer exceptions are perfectly avoidable > in statically typed languages. Er, in decent ones at least! You have > to actively work to use nulls in Haskell, for instance. If you have > something that might or might not be there, you have an option type: > Maybe in Haskell, or Option in Scala. It's just a wrapper that tells > you "yes, I have a value, and this is it" or "no, I have no value". > Well yes, you add null to be one of the "expected" values, so you basically turn your input dataset S into (S+nil). but i was actually referring to them as unexpected value(s) which is much harder to deal with. But the problem is that for any input dataset for which your code works, there could be another dataset for which it doesn't, named unexpected input :) Because doing data validity checks at every possible entry point (method) of your application might not what you would like to do. DNU is about dealing with unexpected input, i.e. object receives a message which it cannot understand. So, the question is basically the same: how those languages deal with unexpected input? > (I have a Smalltalk implementation up on > http://www.squeaksource.com/Nutcracker/ in the Maybe package. You > still have the problem in that you can always say Just value: nil, but > it's handy for (a) saying "this is optional" and (b) chaining > operations together such that a Nothing stops computation from > proceeding.) > > frank > >>> Or: if you want to avoid MNU, don't use a dynamically typed language. >>> >> >>> frank >>> >>>> This is no personal quality problem, this is a methodical problem. In the >>>> whole Pharo team. "Wrong development process!" >>>> >>>> Please, again: "Develop the development process!" >>>> >>>> Have fun, Guido Stepken >>> >> >> >> >> -- >> Best regards, >> Igor Stasenko. >> > -- Best regards, Igor Stasenko.

Feb. 20, 2012

Re: [Pharo-project] A challenge for all who cares

by Frank Shearar

On 20 February 2012 20:24, Igor Stasenko <siguctua(a)gmail.com> wrote: > On 20 February 2012 21:18, Frank Shearar <frank.shearar(a)gmail.com> wrote: >> On 20 February 2012 19:41, Guido Stepken <gstepken(a)googlemail.com> wrote: >>> Am 20.02.2012 10:22, schrieb Edgar J. De Cleene: >>> >>> Yesterday in a response to Craig I said have a Cuis with a wiki on top and >>> this .image is 5 mb and run on a âmodernâ G4 400 mhz PowerMac. >>> >>> Thatâs is a beauty and the power of Cuis, thanks Juan for your reduced image >>> of 2 mb >>> >>> >>> Looks nice. >>> >>> World menu -> appearance -> set desktop color -> Error >>> >>> What i - never ever - understand is, why - when Smalltalk is a reflective >>> language and there are so mighty tools - like Moose - out there, able to >>> search the whole codebase for possible occurrences of "message not >>> understood"????? >> >> This is just a trivial application of the solution to the Halting >> Problem (left as an exercise for the reader). >> > I wonder, what kind of language solves that problem better than smalltalk does? > Apparently compilers can complain about using wrong type/name.. but they cannot > complain about null pointer(s).. they usually crash & bail to OS :) The sad thing is that null pointer exceptions are perfectly avoidable in statically typed languages. Er, in decent ones at least! You have to actively work to use nulls in Haskell, for instance. If you have something that might or might not be there, you have an option type: Maybe in Haskell, or Option in Scala. It's just a wrapper that tells you "yes, I have a value, and this is it" or "no, I have no value". (I have a Smalltalk implementation up on http://www.squeaksource.com/Nutcracker/ in the Maybe package. You still have the problem in that you can always say Just value: nil, but it's handy for (a) saying "this is optional" and (b) chaining operations together such that a Nothing stops computation from proceeding.) frank >> Or: if you want to avoid MNU, don't use a dynamically typed language. >> > >> frank >> >>> This is no personal quality problem, this is a methodical problem. In the >>> whole Pharo team. "Wrong development process!" >>> >>> Please, again: "Develop the development process!" >>> >>> Have fun, Guido Stepken >> > > > > -- > Best regards, > Igor Stasenko. >

Feb. 20, 2012

Re: [Pharo-project] how can I use Nautilus with OCompletion?

by Mariano Martinez Peck

On Mon, Feb 20, 2012 at 9:25 PM, Benjamin < benjamin.vanryseghem.pharo(a)gmail.com> wrote: > Can you tell me how to load OCompletion please ? > > fetch conf from MetacelloRepository and then: (ConfigurationOfOCompletion project version: #stable) load > > Ben > > On Feb 20, 2012, at 9:09 PM, Mariano Martinez Peck wrote: > > I just took the Nautilus from jenkins, installed OCompletion there and > OCompletion seems to work fine everywhere in the image but not in Nautilus. > In the code pane...it doesn't appear anything. So...is there a way to make > OCompletion to work with Nautilus? > > Thanks! > > -- > Mariano > http://marianopeck.wordpress.com > > > -- Mariano http://marianopeck.wordpress.com

Feb. 20, 2012

Re: [Pharo-project] A challenge for all who cares

by Norbert Hartl

Am 20.02.2012 um 21:30 schrieb Nicolas Cellier <nicolas.cellier.aka.nice(a)gmail.com>: > Le 20 fÃ©vrier 2012 21:18, Frank Shearar <frank.shearar(a)gmail.com> a Ã©crit : >> On 20 February 2012 19:41, Guido Stepken <gstepken(a)googlemail.com> wrote: >>> Am 20.02.2012 10:22, schrieb Edgar J. De Cleene: >>> >>> Yesterday in a response to Craig I said have a Cuis with a wiki on top and >>> this .image is 5 mb and run on a âmodernâ G4 400 mhz PowerMac. >>> >>> Thatâs is a beauty and the power of Cuis, thanks Juan for your reduced image >>> of 2 mb >>> >>> >>> Looks nice. >>> >>> World menu -> appearance -> set desktop color -> Error >>> >>> What i - never ever - understand is, why - when Smalltalk is a reflective >>> language and there are so mighty tools - like Moose - out there, able to >>> search the whole codebase for possible occurrences of "message not >>> understood"????? >> >> This is just a trivial application of the solution to the Halting >> Problem (left as an exercise for the reader). >> >> Or: if you want to avoid MNU, don't use a dynamically typed language. >> > > What, what, the right development process wouldn't solve such a > trivial problem ? > Guido, try to inspect yourself with all your introspection tools and > development process know how, because I have the feeling that despite > the many answers you got, you still face a message not understood > problem ;) > Very well put :) Probably the context got corrupted somehow. So whom to blame then? It could be select _is_ broken. ha ha, made my day, thanks, Norbert > Nicolas > >> frank >> >>> This is no personal quality problem, this is a methodical problem. In the >>> whole Pharo team. "Wrong development process!" >>> >>> Please, again: "Develop the development process!" >>> >>> Have fun, Guido Stepken >> >

Feb. 20, 2012

Re: [Pharo-project] A challenge for all who cares

by Nicolas Cellier

Le 20 fÃ©vrier 2012 21:18, Frank Shearar <frank.shearar(a)gmail.com> a Ã©crit : > On 20 February 2012 19:41, Guido Stepken <gstepken(a)googlemail.com> wrote: >> Am 20.02.2012 10:22, schrieb Edgar J. De Cleene: >> >> Yesterday in a response to Craig I said have a Cuis with a wiki on top and >> this .image is 5 mb and run on a âmodernâ G4 400 mhz PowerMac. >> >> Thatâs is a beauty and the power of Cuis, thanks Juan for your reduced image >> of 2 mb >> >> >> Looks nice. >> >> World menu -> appearance -> set desktop color -> Error >> >> What i - never ever - understand is, why - when Smalltalk is a reflective >> language and there are so mighty tools - like Moose - out there, able to >> search the whole codebase for possible occurrences of "message not >> understood"????? > > This is just a trivial application of the solution to the Halting > Problem (left as an exercise for the reader). > > Or: if you want to avoid MNU, don't use a dynamically typed language. > What, what, the right development process wouldn't solve such a trivial problem ? Guido, try to inspect yourself with all your introspection tools and development process know how, because I have the feeling that despite the many answers you got, you still face a message not understood problem ;) Nicolas > frank > >> This is no personal quality problem, this is a methodical problem. In the >> whole Pharo team. "Wrong development process!" >> >> Please, again: "Develop the development process!" >> >> Have fun, Guido Stepken >

Feb. 20, 2012

Re: [Pharo-project] how can I use Nautilus with OCompletion?

by Benjamin

Can you tell me how to load OCompletion please ? Ben On Feb 20, 2012, at 9:09 PM, Mariano Martinez Peck wrote: > I just took the Nautilus from jenkins, installed OCompletion there and OCompletion seems to work fine everywhere in the image but not in Nautilus. In the code pane...it doesn't appear anything. So...is there a way to make OCompletion to work with Nautilus? > > Thanks! > > -- > Mariano > http://marianopeck.wordpress.com >

Feb. 20, 2012

Re: [Pharo-project] how can I use Nautilus with OCompletion?

by Benjamin

Probably, let me have a look ;) Ben On Feb 20, 2012, at 9:09 PM, Mariano Martinez Peck wrote: > I just took the Nautilus from jenkins, installed OCompletion there and OCompletion seems to work fine everywhere in the image but not in Nautilus. In the code pane...it doesn't appear anything. So...is there a way to make OCompletion to work with Nautilus? > > Thanks! > > -- > Mariano > http://marianopeck.wordpress.com >

Feb. 20, 2012