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module MyLib
  refine Object do
  	def log
  	  123
    end
  end
end
 
begin
  puts 1.log
rescue => e
  p e
end
 
using MyLib
 
puts 1.log

Success #stdin #stdout 0.05s 9704KB

stdin

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Standard input is empty

stdout

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#<NoMethodError: undefined method `log' for 1:Fixnum>
123

https://ideone.com/5x8bbk

language:

Ruby (ruby 2.5.5)

created:

visibility:

public

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