From: Adam Block <adam@...>
Date: 2006-09-21T15:31:00+09:00
Subject: Creating ruby-serialport singleton object breaks

I'm trying to create a singleton serial port class with the following 
code:

require 'serialport'   # version 0.6
require 'singleton'

class SerialConnection < SerialPort
  include Singleton

  def initialize
    sp = super("/dev/tty.KeySerial1", 9600, 8, 1, 0)
  end
end

But when I try to create the instance it breaks:

irb(main):009:0> sp = SerialConnection.instance
ArgumentError: wrong number of arguments (0 for 1)
        from (irb):8:in `new'
        from (irb):8:in `new'
        from /usr/local/lib/ruby/1.8/singleton.rb:95:in `instance'
        from (irb):9

But this works fine:

irb(main):010:0> sp = SerialPort.new("/dev/tty.KeySerial1", 9600, 8, 1, 
0)
=> #<SerialPort:0x3251fc>

Any ideas? This used to work, but now it doesn't, and I can't for the 
life of me figure out what changed.

Thanks!

/afb

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