Beginners September 2008

beginners@lists.squeakfoundation.org

56 participants
87 discussions

superclass methods in System Browser
by Mark Volkmann 28 Sep '08

28 Sep '08

When I'm looking at the methods of a class in a System Browser, is there an easy way to tell it I want to see inherited methods too? Otherwise I have to browse the superclasses one by one. --- Mark Volkmann

2 1

coverage tool
by Mark Volkmann 28 Sep '08

28 Sep '08

Is there a code coverage tool for Squeak? When I run my suite of unit tests, I want to know if there is any code within the classes in category I'm testing that wasn't executed by the tests. --- Mark Volkmann

2 1

HTML documentation for Smalltalk classes
by Mark Volkmann 28 Sep '08

28 Sep '08

Is there a tool that generates HTML-based documentation for classes using the comments on classes and methods? Maybe something similar to javadoc? --- Mark Volkmann

2 1

Re: code formatter
by Jerome Peace 28 Sep '08

28 Sep '08

[Newbies] code formatter Mark Volkmann mark at ociweb.com Sat Sep 27 00:18:00 UTC 2008 Hi Mark, Use case: In a fresh sq7159 world menu>open>class browser select a method (I used KernelTests-Methods >MethodPropertiesTest >testAllMethodsHaveMethodClass ) to the right of the 'class vars' button there is a button that usually says 'source' . Press that and you get a menu. Select 'pretty print' The button will now read 'pretty print' and the methods will be displayed that way. When I do this I usually go full hog an ask for color print which highlights the different parts of squeak. The color scheme is different than shouts but it is very helpful in groking code. Yours in curiosity and service, --Jerome Peace On Sep 26, 2008, at 7:03 PM, Rob Rothwell wrote: > Hmm...I just switched to a SystemBrowser in a pharo dev image, > highlighted the code in a method, right clicked, selected "more...", > and pretty print, and it rearranged my code... > > What image are you using? I just repeated the steps you listed and it still didnt' work. I'm using Squeak3.10.2-7179-basic on a Mac. > Rob > > On Fri, Sep 26, 2008 at 7:59 PM, Mark Volkmann <mark at ociweb.com> > wrote: > On Sep 26, 2008, at 6:50 PM, Rob Rothwell wrote: > >> Try right-clicking on the method name (in the method pane of the >> browser) and selecting "pretty print" (at least in the >> Omnibrowser)... > > Pretty print isn't in that menu when using System Browser. Maybe I > should switch to OmniBrowser. I haven't tried that yet. > > Is it really possible that System Browser can't format code? > Ha. Squeak knows how to do more things than you or I know how to ask it. My working assumpt.

2 1

multiple Transcript windows
by Mark Volkmann 28 Sep '08

28 Sep '08

If I have multiple Transcript windows open, can I choose in code which one will receive output? If not, what is the purpose of having more than one open? --- Mark Volkmann

3 2

Re: [Newbies] Are setters a good idea?
by Marcin Tustin 27 Sep '08

27 Sep '08

The short answer is that you are exposing the internals of the object. If you have an object that is just a packet of values, great. If you have an object that will always have e.g. a colour, then possibly great, or possibly not depending on the domain. On Sat, Sep 27, 2008 at 7:40 PM, Andy Burnett < andy.burnett(a)knowinnovation.com> wrote: > I read somewhere - can't remember where - that setters are considered evil. > The argument was that in the real world you can't suddenly change the colour > of a car, just by settings its colour value. Instead, you have to perform > some action, e.g. sprayPaintCar: aColour. Therefore in the OO world, one > should tackle problems in the same way, i.e. if you want to change the value > of an instance variable, you have to call some sort of action method, that > makes sense in the context of the object. > > Without wishing to send startHolyWar to BeginnersList, do any of the > experienced developers work this way, or is it just a theoretical position? > > cheers > AB > > _______________________________________________ > Beginners mailing list > Beginners(a)lists.squeakfoundation.org > http://lists.squeakfoundation.org/mailman/listinfo/beginners > >

1 0

System Browser back and forward
by Mark Volkmann 27 Sep '08

27 Sep '08

When ctrl-B is used in the System Browser to browse a selected class in the same System Browser, is there a way to go back to previous classes you were viewing ... like back and forward buttons in a web browser? --- Mark Volkmann

3 2

code formatter
by Mark Volkmann 27 Sep '08

27 Sep '08

Is there a command to format the code of a method in the System Browser? When I select the code and then select "Pretty Print" nothing happens. --- Mark Volkmann

3 6

Re: [Newbies] Mindstorms NXT and Squeak?
by Michael Haupt 27 Sep '08

27 Sep '08

Hi. On Fri, Sep 26, 2008 at 9:00 PM, Mark L. Miller, Ph.D. <mark.miller(a)learningtech.org> wrote: > Does anyone know if anyone is doing anything with Squeak and Mindstorms NXT? apart from the code Lukas mentioned, Martin Beck, a graduate student at HPI in Potsdam, is developing NXTalk. That's a real Smalltalk VM running on the NXT (i.e., a dedicated firmware), code for which can be developed (and, to a certain extent, tested) in the Squeak image. NXTalk is not available yet - stay tuned until late this year. Best, Michael

1 0

sockets in threads
by Aidan Gauland 27 Sep '08

27 Sep '08

Hello, I have successfully followed this tutorial on the Squeak wiki, http://wiki.squeak.org/squeak/325 so I tried to come up with a way to have a socket listening on its own thread. This is what I came up with (in a Workspace)... [sckt := Socket newTCP listenOn: 8080. [sckt isConnected & sckt dataAvailable ifTrue: [Transcript cr; show: (sckt receiveData)]. (Delay forSeconds: 1.5) wait] repeat] fork. But when I open an inspector on a new socket, and use it to connect to the socket on the thread, it doesn't work. Here's what happens... -The socket used to connect says it's connected. -sckt says something like "other end closed, but not this end". -And nothing shows up on the Transcript when I sendData: on the connecting socket. I can't figure out what the problem is. Any ideas, anyone? Thanks, Aidan

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Beginners September 2008