How to go up trace stack in debugger?

[J Krugman]

Here's a recurrent situation. I'm running a program in the debugger,
the program dies for some reason, and I want to inspect the scope
in which the current function was called. In other words, I want
to be able to climb up the stack trace and poke around there. How
can I do this?

Thanks!

-Jill

 

[Peter Scott]

Here's a recurrent situation. I'm running a program in the debugger,
the program dies for some reason, and I want to inspect the scope
in which the current function was called. In other words, I want
to be able to climb up the stack trace and poke around there. How
can I do this?

It's not as pretty in Perl compared to what some other debuggers
for other languages offer. You can see the stack trace with 'T'.
That tells you enough to go manually display the source code of
the higher levels (with the 'f' and 'l' commands). I got fed up
with not being able to see lexical variables in the higher levels
and added the 'y' command in 5.8.0, which does that. You'll need
the PadWalker module from CPAN.

Summary: you can do most things you want to, but they take effort.

 

[J Krugman]

I got fed up
with not being able to see lexical variables in the higher levels
and added the 'y' command in 5.8.0, which does that. You'll need
the PadWalker module from CPAN.

Thanks! I'll give it a go.

-Jill