On Thu, 02 Feb 2012 12:17:13 -0500, Danny Yoo wrote: > On Thu, Feb 2, 2012 at 12:59 AM, mikeyao > <mikey...@gmail.com> wrote: >> I'm learning scheme and code in emacs and geiser. I want to watch the >> whole recursive process to understand well. I know drracket can do it. >> Is it other tools(command line) that can use in emacs? > > > A simple tool you can use is the 'racket/trace' library: > > http://docs.racket-lang.org/reference/debugging.html > > It'll make the execution of a function visible to you. You have to > explicitly trace the function you want to watch. > > > > --- > > There's also an "errortrace" module that can help produce stack traces: > > http://docs.racket-lang.org/errortrace/using-errortrace.html > > You need to do a little work to hook it into your program. For an > example, see the very top startup script of Eric Hanchrow's rudybot: > > https://github.com/offby1/rudybot/blob/master/freenode-main.rkt > > where you'll see that it has the line: > > exec racket -l errortrace --require "$0" --main -- ${1+"$@"} > > at the top: that's one way to hook errortrace in. ____________________ > Racket Users list: > http://lists.racket-lang.org/users
I have tried trace library but I have a problem. If I put my definitions in the interactive window, everything is fine. But if I put the definitions in the definition window and then I try to trace them, I get error "set!: cannot modify a constant: ". Why? ____________________ Racket Users list: http://lists.racket-lang.org/users
