From: Robert Klemme <bob.news@...>
Date: 2005-03-22T16:49:51+09:00
Subject: Re: Loading singletons from a file.

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"Travis Smith" <zultan.durin@gmail.com> schrieb im Newsbeitrag
news:d95bacd905032121284d8f756b@mail.gmail.com...
> Say I have a class Here, and I loaded that class from some file
> outside my driver via require. So now the class Here is in my
> namespace and I can create a new one with Here.new. What I would like
> to do is create a singleton of the same class with information stored
> in another ruby file. That file would contain something like this....
>
> class Here
> def initialize
> @var1 = "something else"
> end
>
> # adding a method that isn't part of the normal Here class
> def new_method
> # do something
> end
> end
>
> Now, I could just create the singleton and store it somewhere for when
> I needed it, but I plan on having a number of these. Each of them in
> their own file. I thought perhaps I would need to add a line of code
> to the end of the to store that singleton where I needed it. This
> really didn't end up working for me. It would just use the global
> class when I would load the file via load _filename_, false.
>
> What I would really like is just some way to turn a file into an
> anonymous class and be able to initialize it just as is. I'm not sure
> if that's easily possible though.

Have a look at the attached files and see whether that helps you.

> Thanks for any ideas here. I've only been on Ruby for four days now,
> but it's been pretty easy to get this far.

:-)

Kind regards

    robert

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	name="here.rb"
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	filename="here.rb"

=0A=
class Here=0A=
  def self.instances() @instances ||=3D {} end=0A=
end=0A=
=0A=

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Content-Type: application/octet-stream;
	name="here-main.rb"
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	filename="here-main.rb"

 require 'here-1'=0A=
=0A=
 p Here.instances=0A=

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	name="here-1.rb"
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Content-Disposition: attachment;
	filename="here-1.rb"

=0A=
require 'here'=0A=
=0A=
tmp =3D Here.new=0A=
=0A=
class <<tmp=0A=
  def new_method() "foo" end=0A=
end=0A=
=0A=
Here.instances[File.basename(__FILE__)] =3D tmp=0A=

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