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vendor/rails/activesupport/lib/active_support/core_ext/duplicable.rb

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class Object

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  # Can you safely .dup this object?

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  # False for nil, false, true, symbols, and numbers; true otherwise.

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  def duplicable?

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    true

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  end

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end

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class NilClass #:nodoc:

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  def duplicable?

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    false

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  end

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end

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class FalseClass #:nodoc:

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  def duplicable?

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    false

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  end

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end

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class TrueClass #:nodoc:

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  def duplicable?

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    false

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  end

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end

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class Symbol #:nodoc:

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  def duplicable?

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    false

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  end

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end

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class Numeric #:nodoc:

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  def duplicable?

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    false

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  end

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end

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class Class #:nodoc:

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  def duplicable?

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    false

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  end

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end

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