From: Robert Klemme <bob.news@...>
Date: 2005-10-21T20:06:59+09:00
Subject: Re: define_class and get_class

Mushtaq Ahmed wrote:
> Methods can be defined and called dynamically using define_method and
> send/method respectively. Shouldn't there be similar alternatives for
> class creation and invocation? Maybe like this:
> 
> name = "A"
> define_class(name) do
>    def say_hi
>      p "hi"
>    end
>    .
>    .
> end
> get_class(name).new.say_hi
> 
> 
> I would like the above syntax better than the current way of doing it.
> 
> name = "A"
> eval "class #{name}; end"
> klass = Object.const_get(name)
> klass.class_eval do
>    def say_hi
>      p "hi"
>    end
>    .
>    .
> end
> klass.new.say_hi
> 
> -Mushtaq

cl = Class.new do
  def say_hi() puts "hi!" end
end

>> cl.new.say_hi
hi!
=> nil
>> cl.name
=> ""
>> A=cl
=> A
>> cl.name
=> "A"

Does that help?

Kind regards

    robert