Re^4: Neat Debugger tricks (rerun command)

[ysth]

in reply to Re^3: Neat Debugger tricks
in thread Neat Debugger tricks

Your wish is granted (in 5.8.5):

$ perl -de0

Loading DB routines from perl5db.pl version 1.28
Editor support available.

Enter h or `h h' for help, or `man perldebug' for more help.

main::(-e:1):   0
  DB<1> h rerun
rerun           Rerun session to current position.
rerun n         Rerun session to numbered command.
rerun -n        Rerun session to number'th-to-last command.

rerun reloads the program and applies all commands you've executed in the debugger to (theoretically) get you back to the same point.

[gaal]

That's very nice, and has many uses, but isn't what I was wishing for. That's a replay of the complete flow. I want the option to goto an arbitrary line in the code of a running process. Sure, it's not obvious what that means when there are e.g. closures in effect, but I guess that's something to figure out.