Class: Object

Inherits:
BasicObject
Defined in:
lib/alula/monkey_patches.rb

Instance Method Summary collapse

Instance Method Details

#deep_dup ⇒ Object

should only be used for deeply nested structures



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# File 'lib/alula/monkey_patches.rb', line 28

def deep_dup
  case self
  when Numeric, Symbol, NilClass, TrueClass, FalseClass
    self # Immutable types don't need duplication
  when String
    dup
  when Array
    map(&:deep_dup)
  when Hash
    each_with_object({}) do |(key, value), duped|
      duped[key.deep_dup] = value.deep_dup
    end
  else
    # Fall back to the original dup method
    # Should NOT use marshalling/unmarshalling as this can lead to arbitrary code execution based on user input.
    begin
      dup
    rescue StandardError
      self
    end
  end
end