Mega Code Archive

 

Categories / Ruby / Reflection

 

Create a new class and override the method_missing method

class BackwardsString   def initialize(s)    @s = s   end   def method_missing(m, *args, &block)     result = @s.send(m, *args, &block)     result.respond_to?(:to_str) ? BackwardsString.new(result) : result   end   def to_s     @s.reverse   end   def inspect     to_s   end end s = BackwardsString.new("I'm backwards.")             # => .sdrawkcab m'I s.size                                                # => 14 s.upcase                                              # => .SDRAWKCAB M'I s.reverse                                             # => I'm backwards. s.no_such_method # NoMethodError: undefined method 'no_such_method' for "I'm backwards.":String