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Module: Singleton

Instance Attribute Summary

Instance Attribute Details

#duplicable?Boolean (readonly)

Singleton instances are not duplicable:

Class.new.include(Singleton).instance.dup # TypeError (can't dup instance of singleton
[ GitHub ]

  
# File 'activesupport/lib/active_support/core_ext/object/duplicable.rb', line 66

def duplicable?
  false
end