From: Andrea Fazzi <andrea.fazzi@...>
Date: 2006-12-19T00:08:57+09:00
Subject: item order in Object#methods

Hi all,

please consider two files: init.rb and init_2.rb. In init.rb put this 
bunch of code:

module Foo
  def init
    self.methods.collect { |meth| meth if meth =~ /init_/ }.compact.each 
do |init_meth|
      self.send(init_meth.to_sym)
    end
  end
end

class Bar
  include Foo
  def initialize
    init
  end
  def init_1
    puts "Method init_1 called!"
  end
end

class Bar
  def init_2
    puts "Method init_2 called!"
  end
  def init_3
    puts "Method init_3 called!"
  end
  def init_4
    puts "Method init_4 called!"
  end
end

Then in init_2.rb put another bunch of code:

require 'init'

class Bar
  def init_5
    puts "Method init_5 called!"
  end
  def init_6
    puts "Method init_6 called!"
  end
end

Bar.new

Now execute init_2.rb. I get the following result:

Method init_4 called!
Method init_5 called!
Method init_6 called!
Method init_1 called!
Method init_2 called!
Method init_3 called!

but I expected:

Method init_1 called!
Method init_2 called!
Method init_3 called!
Method init_4 called!
Method init_5 called!
Method init_6 called!

So, which is the sort criteria of the array returned by Object#methods?

Thanks a lot!
Andrea