From: Bill Atkins <batkins57@...>
Date: 2005-03-26T04:14:15+09:00
Subject: Re: loading "plugins"

That's a little heavy on memory (and time).  Alternatively, you could do

class Object
  # Object.inherited callback
  def Object.inherited new_class
    return unless @@classes
    @@classes << new_class
  end

  def self.start_log
    @@classes = []
  end

  def self.end_log
    res = @@classes
    @@classes = nil
    res
  end
end

Object.start_log
# require all plugins here
new_classes = Object.end_log

Bill

On Sat, 26 Mar 2005 04:03:48 +0900, Patrick Hurley <phurley@gmail.com> wrote:
> Oops I realized you might want to "discover" what classes you loaded
> so something like this might be closer:
> 
> before_classes = []
> ObjectSpace.each_object(Class) { |obj|  before_classes << obj }
> 
> base= "."
> Dir.glob("#{base}/*.rb").each { |plugin| require plugin }
> 
> new_classes = []
> ObjectSpace.each_object(Class) { |obj|
>   new_classes << obj unless before_classes.include?(obj)
> }
> 
> And then you can further check the loaded classes (in new_classes
> array) by using the respond_to? method (check to see if it is a Duck
> :-)
> 
> Patrick
> 
> 


-- 
$stdout.sync = true
"Just another Ruby hacker.".each_byte do |b|
  ('a'..'z').step do|c|print c+"\b";sleep 0.007 end;print b.chr
end; print "\n"