Support for Elixir pry debugger

[Sasanidas]

I want to add support for the Elixir pry debugger, the idea is to do a similar thing that I did with the Php debugger.

I can force the debugger from the command line, and spawn another REPL, but there can be some variables in the
current REPL that are going to be lost, my question is:
It is possible to "hijack" the current REPL for the debugging session?

If it is too complicated, I'll just call it from the command line 👍

Thanks!

[rocky]

It is possible to "hijack" the current REPL for the debugging session?

I don't understand exactly what "hijack"ing a current REPL. Of course, if the the REPL in some sort of process buffer with shell mode attached (shell-mode, comint-mode) then we do that all the time. the trepan stuff is a _minor_mode not a major mode.

And the way realgud does its thing is to hook into a process hook. So if the REPL has a means for that, then realgud's hooks can be added to that.