method

do_with_enum

Importance_0
do_with_enum(enum, &block) private

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# File lib/set.rb, line 92
  def do_with_enum(enum, &block) # :nodoc:
    if enum.respond_to?(:each_entry)
      enum.each_entry(&block) if block
    elsif enum.respond_to?(:each)
      enum.each(&block) if block
    else
      raise ArgumentError, "value must be enumerable"
    end
  end
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