trailing dot vs. next line dot

chain.rb

require 'benchmark'

class Chainer
  def punt
    self
  end
end

def trailer
  eval(trailer_code)
end

def trailer_code
  1000.times.inject("@chainer") {|code, _| code << ".\npunt"}
end

def next_line
  eval(next_line_code)
end

def next_line_code
  1000.times.inject("@chainer") {|code, _| code << "\n.punt"}
end

count = 10000
@chainer = Chainer.new

Benchmark.bmbm do |x|
  x.report("next list") { 100.times { next_line } }
  x.report("trailing dot") { 100.times { trailer } }
end

Rehearsal ------------------------------------------------
next list 0.110000 0.000000 0.110000 ( 0.111465)
trailing dot 0.110000 0.000000 0.110000 ( 0.109684)
--------------------------------------- total: 0.220000sec

               user     system      total        real

next list 0.110000 0.000000 0.110000 ( 0.111176)
trailing dot 0.110000 0.000000 0.110000 ( 0.107380)