gist: 103294


  
      Class#inherited rdoc
    
    
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              -------------------------------------------------------- Class#inherited
     inherited(subclass)
------------------------------------------------------------------------
     Callback invoked whenever a subclass of the current class is
     created.
 
     Example:
 
        class Foo
           def self.inherited(subclass)
              puts "New subclass: #{subclass}"
           end
        end
     
        class Bar < Foo
        end
     
        class Baz < Bar
        end
 
     produces:
 
        New subclass: Bar
        New subclass: Baz
 
            
      object_space.rb
    
    
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              Clio:~ kev$ irb
>> class Foo; end
=> nil
>> class Bar < Foo; end
=> nil
>> class Baz < Foo; end
=> nil
>> ObjectSpace.each_object(Class) {|c| puts "Subclass of Foo: #{c.inspect}" if c < Foo }
Subclass of Foo: Baz
Subclass of Foo: Bar
=> 400
>>