gistfile1.rb

module Kernel
  def irb_drop(context=nil, *argv)
    require 'irb'
    require 'pp'
    require 'yaml'
    original_argv = ARGV.dup
    ARGV.replace(argv) # IRB is being stupid
    IRB.setup(nil) # FIXME: must only be called once
    irb = IRB::Irb.new(IRB::WorkSpace.new(context))
    IRB.conf[:IRB_RC].call(irb.context) if IRB.conf[:IRB_RC] # loads the irbrc?
    IRB.conf[:MAIN_CONTEXT] = irb.context # why would the main context be set here?
    trap("SIGINT") do irb.signal_handle end
    ARGV.replace(original_argv)
    catch(:IRB_EXIT) do irb.eval_input end
  end
  module_function :irb_drop
end