fork(1) download 
  1. class Parent
  2.   def self.singleton
  3.   	@@instance ||= new
  4.   end
  5. end
  6.  
  7. class Child < Parent
  8. end
  9.  
  10. p Parent.singleton.class # => Parent
  11. p Child.singleton.class # => Parent (!!)
Success #stdin #stdout 0.01s 7408KB
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stdin 
Standard input is empty
stdout 
Parent
Parent
https://ideone.com/AOv1TQ
language:
Ruby (ruby 2.5.5)
created:
10 years ago
visibility:
public

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