benchmarking && vs try

try-bench.rb

module ActiveSupport
  module NewTryable #:nodoc:
    def try(*a, &b)
      return unless a.empty? || respond_to?(a.first)
      return public_send(*a, &b) unless a.empty?

      return nil unless block_given?
      return instance_eval(&b) if b.arity == 0
      yield self
    end

    def try!(*a, &b)
      return public_send(*a, &b) if !a.empty?
      return nil unless block_given?
      return instance_eval(&b) if b.arity == 0
      yield self
    end
  end
end


module ActiveSupport
  module OldTryable #:nodoc:
    def try(*a, &b)
      try!(*a, &b) if a.empty? || respond_to?(a.first)
    end

    def try!(*a, &b)
      if a.empty? && block_given?
        if b.arity == 0
          instance_eval(&b)
        else
          yield self
        end
      else
        public_send(*a, &b)
      end
    end
  end
end

class FooNew
  include ActiveSupport::NewTryable

  def foo
  end
end

class FooOld
  include ActiveSupport::OldTryable

  def foo
  end
end

class Foo
  def foo
  end
end

foo_and = Foo.new
foo_safe = Foo.new
foo_new = FooNew.new
foo_old = FooOld.new

require 'benchmark/ips'

Benchmark.ips do |x|
  x.report("and") { foo_and && foo_and.foo }
  x.report("safe") { foo_safe&.foo }
  x.report("old") { foo_old.try(:foo) }
  x.report("new") { foo_new.try(:foo) }
  x.compare!
end

# $ ruby try-bench.rb
# Warming up --------------------------------------
#                  and   318.461k i/100ms
#                 safe   319.158k i/100ms
#                  old   148.504k i/100ms
#                  new   180.076k i/100ms
# Calculating -------------------------------------
#                  and     10.309M (± 1.9%) i/s -     51.591M in   5.006308s
#                 safe     10.947M (± 2.0%) i/s -     54.895M in   5.016615s
#                  old      2.298M (± 1.1%) i/s -     11.583M in   5.040476s
#                  new      3.127M (± 1.4%) i/s -     15.667M in   5.010648s
# 
# Comparison:
#                 safe: 10947229.7 i/s
#                  and: 10309178.2 i/s - 1.06x  slower
#                  new:  3127291.1 i/s - 3.50x  slower
#                  old:  2298362.3 i/s - 4.76x  slower