February 2016 - Pharo-users

Re: [Pharo-users] how to add a class via programatic refactoring

by Sven Van Caekenberghe

Cool ! It keeps on coming, where will it end ;-) > On 09 Feb 2016, at 22:01, Tudor Girba <tudor(a)tudorgirba.com> wrote: > > And you can see and reason about changes before applying it :) > > For example, in the latest GTInspector (not yet in Pharo), you can preview changes right in the inspector: > > <previewchanges.png> > > Cheers, > Doru > > >> On Feb 9, 2016, at 4:47 PM, stepharo <stepharo(a)free.fr> wrote: >> >> It checks that the class does not already exist. >> And check the preconditions. >> >> Le 9/2/16 16:41, Peter UhnÃ¡k a Ã©crit : >>> What's the practical difference between calling >>> >>> ``` >>> (RBAddClassRefactoring >>> addClass: #SomeClass >>> superclass: #Object >>> subclasses: {} >>> category: #Category) primitiveExecute; changes. >>> ``` >>> and >>> ``` >>> Object subclass: #SomeClass >>> instanceVariableNames: '' >>> classVariableNames: '' >>> package: 'Category' >>> ``` >>> >>> likewise for the attribute? >>> >>> I am doing source code generation in one project and using the latter approach, so I am curious about the benefit of the first one. >>> >>> Thanks, >>> Peter >>> >>> >>> On Mon, Feb 8, 2016 at 12:22 PM, Tudor Girba <tudor(a)tudorgirba.com> wrote: >>> Great! Thanks a lot. >>> >>> Doru >>> >>> >>> > On Feb 8, 2016, at 10:57 AM, Nicolai Hess <nicolaihess(a)gmail.com> wrote: >>> > >>> > Not the best way maybe: >>> > >>> > | model refactoring1 refactoring2 browser | >>> > model := RBNamespace onEnvironment: RBBrowserEnvironment new. >>> > refactoring1 := RBAddClassRefactoring >>> > model: model >>> > addClass: #SomeClass >>> > superclass: #Object >>> > subclasses: {} >>> > category: #Category. >>> > refactoring1 primitiveExecute. >>> > refactoring2 := RBAddInstanceVariableRefactoring >>> > model: model >>> > variable: 'x' >>> > class: #SomeClass. >>> > refactoring2 primitiveExecute. >>> > browser := ChangesBrowser new. >>> > browser changesTree roots: (model changes whatToDisplayIn: browser). >>> > browser open >>> > >>> > >>> > >>> > 2016-02-07 22:24 GMT+01:00 Tudor Girba <tudor(a)tudorgirba.com>: >>> > Hi, >>> > >>> > I would like to create a class with instance variables and methods using RB, and preview the changes with the changes browser. >>> > >>> > I know how to create AddClass, AddInstanceVariable, AddMethod refactorings individually and query for their changes. For example: >>> > >>> > (RBAddClassRefactoring >>> > addClass: #SomeClass >>> > superclass: #Object >>> > subclasses: {} >>> > category: #Category) primitiveExecute; changes. >>> > >>> > (RBAddInstanceVariableRefactoring >>> > variable: 'x' >>> > class: #SomeClass) primitiveExecute; changes >>> > >>> > My question is: is it possible to create them all in one batch and preview their changes in one single window? >>> > >>> > Cheers, >>> > Doru >>> > >>> > >>> > -- >>> > www.tudorgirba.com >>> > www.feenk.com >>> > >>> > "If you interrupt the barber while he is cutting your hair, >>> > you will end up with a messy haircut." >>> > >>> > >>> > >>> >>> -- >>> www.tudorgirba.com >>> www.feenk.com >>> >>> "No matter how many recipes we know, we still value a chef." >>> >>> >>> >>> >>> >>> >>> >>> >>> >> > > -- > www.tudorgirba.com > www.feenk.com > > "There are no old things, there are only old ways of looking at them." > > > >

Feb. 9, 2016

Re: [Pharo-users] how to add a class via programatic refactoring

by Tudor Girba

And you can see and reason about changes before applying it :) For example, in the latest GTInspector (not yet in Pharo), you can preview changes right in the inspector: Cheers, Doru > On Feb 9, 2016, at 4:47 PM, stepharo <stepharo(a)free.fr> wrote: > > It checks that the class does not already exist. > And check the preconditions. > > Le 9/2/16 16:41, Peter UhnÃ¡k a Ã©crit : >> What's the practical difference between calling >> >> ``` >> (RBAddClassRefactoring >> addClass: #SomeClass >> superclass: #Object >> subclasses: {} >> category: #Category) primitiveExecute; changes. >> ``` >> and >> ``` >> Object subclass: #SomeClass >> instanceVariableNames: '' >> classVariableNames: '' >> package: 'Category' >> ``` >> >> likewise for the attribute? >> >> I am doing source code generation in one project and using the latter approach, so I am curious about the benefit of the first one. >> >> Thanks, >> Peter >> >> >> On Mon, Feb 8, 2016 at 12:22 PM, Tudor Girba <tudor(a)tudorgirba.com> wrote: >> Great! Thanks a lot. >> >> Doru >> >> >> > On Feb 8, 2016, at 10:57 AM, Nicolai Hess <nicolaihess(a)gmail.com> wrote: >> > >> > Not the best way maybe: >> > >> > | model refactoring1 refactoring2 browser | >> > model := RBNamespace onEnvironment: RBBrowserEnvironment new. >> > refactoring1 := RBAddClassRefactoring >> > model: model >> > addClass: #SomeClass >> > superclass: #Object >> > subclasses: {} >> > category: #Category. >> > refactoring1 primitiveExecute. >> > refactoring2 := RBAddInstanceVariableRefactoring >> > model: model >> > variable: 'x' >> > class: #SomeClass. >> > refactoring2 primitiveExecute. >> > browser := ChangesBrowser new. >> > browser changesTree roots: (model changes whatToDisplayIn: browser). >> > browser open >> > >> > >> > >> > 2016-02-07 22:24 GMT+01:00 Tudor Girba <tudor(a)tudorgirba.com>: >> > Hi, >> > >> > I would like to create a class with instance variables and methods using RB, and preview the changes with the changes browser. >> > >> > I know how to create AddClass, AddInstanceVariable, AddMethod refactorings individually and query for their changes. For example: >> > >> > (RBAddClassRefactoring >> > addClass: #SomeClass >> > superclass: #Object >> > subclasses: {} >> > category: #Category) primitiveExecute; changes. >> > >> > (RBAddInstanceVariableRefactoring >> > variable: 'x' >> > class: #SomeClass) primitiveExecute; changes >> > >> > My question is: is it possible to create them all in one batch and preview their changes in one single window? >> > >> > Cheers, >> > Doru >> > >> > >> > -- >> > www.tudorgirba.com >> > www.feenk.com >> > >> > "If you interrupt the barber while he is cutting your hair, >> > you will end up with a messy haircut." >> > >> > >> > >> >> -- >> www.tudorgirba.com >> www.feenk.com >> >> "No matter how many recipes we know, we still value a chef." >> >> >> >> >> >> >> >> >> > -- www.tudorgirba.com www.feenk.com "There are no old things, there are only old ways of looking at them."

Feb. 9, 2016

How to display Dictionary using TreeModel

by Khrystyna Mykhailiuk

Hi, all! I have OrderedCollection of Dictionaries and I want to display content of each Dictionary using TreeModel. I wrote these code, but it doesn't work correctly. And I get some errors. mt := TreeModel new. mt roots: (collectionFirst select: OrderedCollection new); childrenBlock: [ :item | item ]. mt openWithSpec. (This is screenshot of my work) <http://forum.world.st/file/n4876653/ScreenPharoTreeModel.png> I need to show each pair of Dictionary in new node. Can you help me, please? -- View this message in context: http://forum.world.st/How-to-display-Dictionary-using-TreeModel-tp4876653.h… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Feb. 9, 2016

Re: [Pharo-users] Skipping to a substring in a stream

by Sven Van Caekenberghe

> On 09 Feb 2016, at 19:54, Stephan Eggermont <stephan(a)stack.nl> wrote: > > On 09/02/16 14:01, Sven Van Caekenberghe wrote: >> Leonardo, >> >> You could try PositionalStream>>#upToAll: >> >> But watch out: if the substring does not occur, it will effectively read #upToEnd > > Also, for searching for substrings in long strings this is extremely slow, much slower than BMH and KMP Yes, true. I wanted to say something similar. But we don't how he is using it, or for what, maybe it is just some one off code that is not used frequently or totally not performance critical. > Stephan

Feb. 9, 2016

Re: [Pharo-users] Skipping to a substring in a stream

by Stephan Eggermont

On 09/02/16 14:01, Sven Van Caekenberghe wrote: > Leonardo, > > You could try PositionalStream>>#upToAll: > > But watch out: if the substring does not occur, it will effectively read #upToEnd Also, for searching for substrings in long strings this is extremely slow, much slower than BMH and KMP Stephan

Feb. 9, 2016

Re: [Pharo-users] Skipping to a substring in a stream

by Denis Kudriashov

Hi 2016-02-09 17:48 GMT+01:00 Leonardo Silva <leonardo.humberto(a)gmail.com>: > Thank you both, PositionableStream>>upToAll worked fine ! you should remember that it produces garbage

Feb. 9, 2016

Re: [Pharo-users] Skipping to a substring in a stream

by Leonardo Silva

Thank you both, PositionableStream>>upToAll worked fine ! On Tue, Feb 9, 2016 at 11:01 AM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > Leonardo, > > You could try PositionalStream>>#upToAll: > > But watch out: if the substring does not occur, it will effectively read > #upToEnd > > HTH, > > Sven > > > On 09 Feb 2016, at 13:29, Leonardo Silva <leonardo.humberto(a)gmail.com> > wrote: > > > > Hi, > > > > I'd like to skip to a specific position in a stream based on a substring. > > I got the following example that works for a single character: > > > > stream := 'abcdef' readStream. > > stream skipTo: $e. > > stream next. -â $f > > > > But it does not work for substrings. > > I'd like to have something like: > > > > stream := 'abcdef' readStream. > > stream skipTo: 'de'. > > stream next. -â "But this returns nil" > > > > Do you know how to do it? > > > > Thanks, > > > > Leonardo > > > > >

Feb. 9, 2016

Re: [Pharo-users] how to add a class via programatic refactoring

by stepharo

It checks that the class does not already exist. And check the preconditions. Le 9/2/16 16:41, Peter UhnÃ¡k a Ã©crit : > What's the practical difference between calling > > ``` > (RBAddClassRefactoring > addClass: #SomeClass > superclass: #Object > subclasses: {} > category: #Category) primitiveExecute; changes. > ``` > and > ``` > Object subclass: #SomeClass > instanceVariableNames: '' > classVariableNames: '' > package: 'Category' > ``` > > likewise for the attribute? > > I am doing source code generation in one project and using the latter > approach, so I am curious about the benefit of the first one. > > Thanks, > Peter > > > On Mon, Feb 8, 2016 at 12:22 PM, Tudor Girba <tudor(a)tudorgirba.com > <mailto:tudor@tudorgirba.com>> wrote: > > Great! Thanks a lot. > > Doru > > > > On Feb 8, 2016, at 10:57 AM, Nicolai Hess <nicolaihess(a)gmail.com > <mailto:nicolaihess@gmail.com>> wrote: > > > > Not the best way maybe: > > > > | model refactoring1 refactoring2 browser | > > model := RBNamespace onEnvironment: RBBrowserEnvironment new. > > refactoring1 := RBAddClassRefactoring > > model: model > > addClass: #SomeClass > > superclass: #Object > > subclasses: {} > > category: #Category. > > refactoring1 primitiveExecute. > > refactoring2 := RBAddInstanceVariableRefactoring > > model: model > > variable: 'x' > > class: #SomeClass. > > refactoring2 primitiveExecute. > > browser := ChangesBrowser new. > > browser changesTree roots: (model changes whatToDisplayIn: > browser). > > browser open > > > > > > > > 2016-02-07 22:24 GMT+01:00 Tudor Girba <tudor(a)tudorgirba.com > <mailto:tudor@tudorgirba.com>>: > > Hi, > > > > I would like to create a class with instance variables and > methods using RB, and preview the changes with the changes browser. > > > > I know how to create AddClass, AddInstanceVariable, AddMethod > refactorings individually and query for their changes. For example: > > > > (RBAddClassRefactoring > > addClass: #SomeClass > > superclass: #Object > > subclasses: {} > > category: #Category) primitiveExecute; changes. > > > > (RBAddInstanceVariableRefactoring > > variable: 'x' > > class: #SomeClass) primitiveExecute; changes > > > > My question is: is it possible to create them all in one batch > and preview their changes in one single window? > > > > Cheers, > > Doru > > > > > > -- > > www.tudorgirba.com <http://www.tudorgirba.com> > > www.feenk.com <http://www.feenk.com> > > > > "If you interrupt the barber while he is cutting your hair, > > you will end up with a messy haircut." > > > > > > > > -- > www.tudorgirba.com <http://www.tudorgirba.com> > www.feenk.com <http://www.feenk.com> > > "No matter how many recipes we know, we still value a chef." > > > > > > > > >

Feb. 9, 2016

Re: [Pharo-users] how to add a class via programatic refactoring

by Peter UhnÃ¡k

What's the practical difference between calling ``` (RBAddClassRefactoring addClass: #SomeClass superclass: #Object subclasses: {} category: #Category) primitiveExecute; changes. ``` and ``` Object subclass: #SomeClass instanceVariableNames: '' classVariableNames: '' package: 'Category' ``` likewise for the attribute? I am doing source code generation in one project and using the latter approach, so I am curious about the benefit of the first one. Thanks, Peter On Mon, Feb 8, 2016 at 12:22 PM, Tudor Girba <tudor(a)tudorgirba.com> wrote: > Great! Thanks a lot. > > Doru > > > > On Feb 8, 2016, at 10:57 AM, Nicolai Hess <nicolaihess(a)gmail.com> wrote: > > > > Not the best way maybe: > > > > | model refactoring1 refactoring2 browser | > > model := RBNamespace onEnvironment: RBBrowserEnvironment new. > > refactoring1 := RBAddClassRefactoring > > model: model > > addClass: #SomeClass > > superclass: #Object > > subclasses: {} > > category: #Category. > > refactoring1 primitiveExecute. > > refactoring2 := RBAddInstanceVariableRefactoring > > model: model > > variable: 'x' > > class: #SomeClass. > > refactoring2 primitiveExecute. > > browser := ChangesBrowser new. > > browser changesTree roots: (model changes whatToDisplayIn: browser). > > browser open > > > > > > > > 2016-02-07 22:24 GMT+01:00 Tudor Girba <tudor(a)tudorgirba.com>: > > Hi, > > > > I would like to create a class with instance variables and methods using > RB, and preview the changes with the changes browser. > > > > I know how to create AddClass, AddInstanceVariable, AddMethod > refactorings individually and query for their changes. For example: > > > > (RBAddClassRefactoring > > addClass: #SomeClass > > superclass: #Object > > subclasses: {} > > category: #Category) primitiveExecute; changes. > > > > (RBAddInstanceVariableRefactoring > > variable: 'x' > > class: #SomeClass) primitiveExecute; changes > > > > My question is: is it possible to create them all in one batch and > preview their changes in one single window? > > > > Cheers, > > Doru > > > > > > -- > > www.tudorgirba.com > > www.feenk.com > > > > "If you interrupt the barber while he is cutting your hair, > > you will end up with a messy haircut." > > > > > > > > -- > www.tudorgirba.com > www.feenk.com > > "No matter how many recipes we know, we still value a chef." > > > > > > > > >

Feb. 9, 2016

Re: [Pharo-users] Skipping to a substring in a stream

by Sven Van Caekenberghe

Leonardo, You could try PositionalStream>>#upToAll: But watch out: if the substring does not occur, it will effectively read #upToEnd HTH, Sven > On 09 Feb 2016, at 13:29, Leonardo Silva <leonardo.humberto(a)gmail.com> wrote: > > Hi, > > I'd like to skip to a specific position in a stream based on a substring. > I got the following example that works for a single character: > > stream := 'abcdef' readStream. > stream skipTo: $e. > stream next. -â $f > > But it does not work for substrings. > I'd like to have something like: > > stream := 'abcdef' readStream. > stream skipTo: 'de'. > stream next. -â "But this returns nil" > > Do you know how to do it? > > Thanks, > > Leonardo >

Feb. 9, 2016