[racket] Debugging multiple modules in DrRacket

I've just pushed a change that seems to fix this, but reading over the
code and experimenting with it a bit, I'm not sure why it is seeing
the callbacks into the eval-handler in the order that it is seeing
them so I'm not sure that my fix is the right one.

Also, one thing to note: if there are compiled .zo files, then the
debugger doesn't debug those files. I believe this is just showing the
age of the debugger and isn't a fundamental limitation (in particular,
the debugger could stash .zo files with the annotations in them the
way that errortrace does).

But I think that this means that you should probably turn off the
automatic zo file creation option in the module language, or else you
still won't be able to debug those files.

Robby

On Fri, Jun 1, 2012 at 9:12 PM, Harry Spier <vasishtha.spier at gmail.com> wrote:
> I have a main module which requires other modules.  I'm trying to
> debug one of those modules using the debugger in DrRacket. (I'm using
> windows Vista and the latest Racket.
>
>  I open two tabs in DrRacket, one with the main module and one with
> the module I'm trying to debug (lets call it M).  I click the debug
> icon in the main module and set a breakpoint just before the call to
> the procedure in module M.  I then step through the call to this
> procedure and the second tab opens with module M but there are no
> debug icons available and I can't step through module M.
>
> I then tried first opening the tab with module M and clicking on the
> debug icon and then opening the tab with the main module and clicking
> on debug and setting the breakpoint etc.  but when I stepped into
> module M, the debug icons were available but appeared to be disabled
> (i.e. lighter color and didn't respond to clicking).
>
> Section 1.8.4 for DrRacket says:
> ------------------------------------
> 1.8.4 Debugging Multiple Files
>
> To debug a program that spans several files, make sure that all of the
> files are open in DrRacket. Click the Debug button in the window
> containing the main program. As this program loads additional files
> that are present in other windows or tabs, message boxes will pop up
> asking whether or not to include the file in the debugging session.
> Including the file means that it will be possible to set breakpoints,
> inspect variables, and single-step in that file.
> -------------------------------------
>
> But no message boxes popped up asking me whether I want to include
> files in the debugging session..
>
> In the Choose Language menu I have "Debugging" chosen under dynamic properties.
>
> Can anyone suggest what might be the problem.
>
> Thanks,
> Harry
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