From: Harry Spier <harryspier@...>
Date: 2010-09-14T12:50:10+09:00
Subject: Re: Converting from one class to another in Ruby

Correction to post (finger trouble)
Harry Spier wrote:
> 
> 
> class A
>    def to_Binary_matrix(from_initialize_method = false)
>       if from_initialize_method
           ...logic to convert to Binary_matrix format
           and store result in two_dimensional_binary_array...
>          return two_dimensional_binary_array
>         else
>          return Binary_matrix.new(self)
>       end
>     end
> ...
> end
> 
> class Binary_matrix < Array
>    def initialize(arg)
>      called_from_initialize =true
>      if arg.respond_to? :to_Binary_matrix
>        arg = arg.to_Binary_matrix (called_from_initialize)
>      else
>       ....do some error reporting
>      end
>      validate arg #Is the Binary_matrix object correctly formed?
       self.replace arg
>    end
> ...
> end
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