[racket] how to trace stack by command line tools?

From: Danny Yoo (dyoo at cs.wpi.edu)
Date: Thu Feb 2 12:17:13 EST 2012

On Thu, Feb 2, 2012 at 12:59 AM, mikeyao <mikeyao2 at 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:


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:


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:


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.

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