module Pry::Command::Edit::FileAndLineLocator

def from_exception(exception, backtrace_level)
  raise CommandError, "No exception found." if exception.nil?
  file_name, line = exception.bt_source_location_for(backtrace_level)
  raise CommandError, "Exception has no associated file." if file_name.nil?
  if Pry.eval_path == file_name
    raise CommandError, "Cannot edit exceptions raised in REPL."
  end
  [file_name, line]
end