class Add
  attr_reader :result, :is_negative
  def initialize(a, b)
    @result = a + b
    @is_negative = @result < 0
  end
end


def add(a,b)
  result = a + b

  { result: result, is_negative: (result < 0) }
end


require 'benchmark/ips'

Benchmark.ips do |x|
  x.report("obj return") { foo = Add.new(1, 2); foo.result; foo.is_negative }
  x.report("hash return") { foo = add(1, 2); foo[:result]; foo[:is_negative] }
  x.compare!
end