thisContext reifies the activation contexts (if that is the exact way to describe it?). I don't believe you have it in VA. So you can just walk it. If you look for some of the fatal error handling logic you can see how the debug log is written out on crash containing the stack. Cheers mike
On Wednesday, April 21, 2010, Peter Hugosson-Miller <[email protected]> wrote: > Hi all, > So it's time for me to stop lurking and do some stuff. However, although I am > an experienced Smalltalk programmer (VisualAge Smalltalk continuously since > 1995), I am a complete newb when it comes to Pharo and Squeak, it's hard to > find my way around, and it's going to take me some time to get up to speed. > > > > > > I'm working on a small improvement to the testing framework, using ideas that > I have found to be very useful in my daily job over the past 15 years. Note > that I am doing this from scratch, so that I don't accidentally steal > anything that I've done in my work, but I know how it all works in VisualAge, > so I feel sure that I'll eventually be able to find the corresponding classes > and methods in Pharo. > > > > > > What I would like are a few hints, clues and nudges in the right direction > for scenarios and questions that I will describe in this thread. What I > *don't* want are full-blown solutions, because then I won't learn anything. I > hope that some kind souls will be able to give me a little help in the > beginning that will eventually bring me up to speed and let me be productive. > > > > > So to start with, one scenario and one question: > 1) I want to find or write a method on Process that will print a stack trace > onto a supplied Stream. Ideally I'd like to be able to decide the start and > stop depth of the trace, so for example if I know that the top 4 stack frames > will always be uninteresting, I would want to be able to write something like > this: > > > Processor activeProcess printStackFrom: 5 to: 15 on: aStream. > 2) What *exactly* is "thisContext"? It appears to be a reserved word in > Pharo, just like the familiar "self", "super", "true", "false", "nil" that > are always reserved in Smalltalk. I'd also like to get an idea of what it's > good for, and if anyone can describe it in terms of something that is in > VisualAge, that would be nice too :-) > > > BTW, if this is not the appropriate place for a thread like this, then please > tell me where I should put it (politely, of course :-p) > -- > Cheers, > Peter > > _______________________________________________ Pharo-project mailing list [email protected] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
