dotfiles/languages/ruby/irbrc

require 'irb/ext/save-history'
require 'irb/completion'

ARGV.concat [ "--readline", "--prompt-mode", "simple" ]

IRB.conf[:SAVE_HISTORY] = 1000
IRB.conf[:HISTORY_FILE] = "#{ENV['HOME']}/.irb-save-history"

class Object
  # Return a list of methods defined locally for a particular object.  Useful
  # for seeing what it does whilst losing all the guff that's implemented
  # by its parents (eg Object).
  def local_methods(obj = self)
    (obj.methods - obj.class.superclass.instance_methods).sort
  end
end