Sig, Is there a way to disable the implicit temps? That would be great, because it IS an error waiting to happen.
Bill -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Igor Stasenko Sent: Friday, July 17, 2009 12:07 AM To: [email protected] Subject: Re: [Pharo-project] Where declared global reside... how can they be removed? 2009/7/17 Schwab,Wilhelm K <[email protected]>: > John, > > As Sig already said, globals should be used sparingly. You should > read about workspace variables. Personally, I can't stand them, but > others like them and you might too. You can also define temporaries > in a workspace, something like > > | mySquare | > mySquare := Morph new. > ... > > The problem (or feature, depending on your perspective) is that mySquare will > go away as soon as the expressions are evaluated, unless you inspect it or > otherwise take steps to keep it around. Workspace variables will stick > around, which is why they end up irritating me. I also do not like the > implicit definition of them; it's easy to slip spelling, and instead of > getting a syntax error, you get broken code, which is the _real_ reason I do > not like them. > yeah.. implicit temps - this is what i disabling at first place when using workspaces. IMO, it is very error prone feature. > Welcome to Smalltalk, and to the list. Enjoy! > > Bill > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of John > Escobedo > Sent: Thursday, July 16, 2009 7:22 PM > To: [email protected] > Subject: [Pharo-project] Where declared global reside... how can they be > removed? > > Hi everyone, > > I'm new to both Smalltalk and especially to Pharo (and this mailing list). > I have a very basic question and would like to be directed to more info or a > different mailing list if appropriate. > > For most tutorials (I'm using squeak tutorials), one does a lot of work in a > workspace. > > If I make a new global variable such as: > > MySquare := Morph new > > ...once I define "MySquare" as a global variable I know I can send it many > messages like: > > > MySquare openInWorld > MySquare color: Color yellow > > When I'm done and I close the workspace, save the image and save the image. > When I open it again it will know what "MySquare" is known in any workspace. > > How do I remove "MySquare" and/or the associated object? > How could I see or find other such global variables? > > - John > > _______________________________________________ > Pharo-project mailing list > [email protected] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > _______________________________________________ > Pharo-project mailing list > [email protected] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > -- Best regards, Igor Stasenko AKA sig. _______________________________________________ Pharo-project mailing list [email protected] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project _______________________________________________ Pharo-project mailing list [email protected] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
