require 'benchmark'
 
$__benchmarks__ = []
 
def bench(name, iterations = 1000, &block)
  file, line, _ = caller[0].split(':')
  $__benchmarks__ << {
    file: File.basename(file),
    line: line,
    name: name,
    iterations: iterations,
    block: block
  }
end
 
at_exit do
  Benchmark.bmbm do |x|
    $__benchmarks__.each do |info|
      benchname = "#{info[:file]}:#{info[:line]} #{info[:name]}"
      x.report(benchname) { info[:iterations].times(&info[:block]) }
    end
  end
end
 
other_array = [*1..1000]
 
bench ".each" do
  array = [*1..1000]
  other_array.each do |elem|
    array << elem
  end
end
 
bench "#concat" do
  array = [*1..1000]
  array.concat(other_array)
end
 

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