class Pry::Command::Edit::ExceptionPatcher

def perform_patch
  file_name, = file_and_line
  lines = state.dynamical_ex_file || File.read(file_name)
  source = Pry::Editor.new(pry_instance).edit_tempfile_with_content(lines)
  pry_instance.evaluate_ruby source
  state.dynamical_ex_file = source.split("\n")
end