Noobie ... Simple Inheriting from Hash Question

ruby-talk
1

Another option that hasn't been mentioned yet is to use delegation.
You can have a wrapper around a hash that contains all your additional
methods and references a Hash instance.

Hi Robert,

Could you elaborate with code pls?

Kind regards

Nev

2

class MyHash
     def initialize
         @hash = {}
     end

     # Do something special to the hash
     def square_all
         @hash.each{ |k,v| @hash[k] = v*v }
     end

     # Pass any method I don't understand on to the hash
     def method_missing(meth, *args, &block)
         @hash.send(meth, *args, &block)
     end
end

ยทยทยท

On May 18, 2005, at 7:01 PM, Neville Burnell wrote:

Another option that hasn't been mentioned yet is to use delegation.
You can have a wrapper around a hash that contains all your additional
methods and references a Hash instance.

Could you elaborate with code pls?