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  1. def makeIteratorClass(&block)
  2.   Class.new do
  3.     def initialize init
  4.       @init = init
  5.     end
  6.     define_method :getNext do
  7.       @init = block.call @init
  8.     end
  9.   end
  10. end
  11.  
  12. def test
  13.   c = makeIteratorClass {|x| x + 1}
  14.   o = c.new 10
  15.   p o.getNext
  16.   p o.getNext
  17.   p o.getNext
  18. end
  19.  
  20. test
Success #stdin #stdout 0.03s 7460KB
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stdin 
Standard input is empty
stdout 
11
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13
https://ideone.com/SiYPxj
language:
Ruby (ruby 2.5.5)
created:
10 years ago
visibility:
public

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