contracts

gistfile1.rb

require 'rubygems'
require 'bundler'
Bundler.require

include Contracts
Contract Num, Num => Num
def add_c(a, b)
	a + b
end

def add(a, b)
	a + b
end

Benchmark.ips do |_|
	_.report('contract') { add_c(3, 4) }
	_.report('no contract') { add(3, 4) }
	_.compare!
end


# pavel@dt3:~/prizeo/contract|⇒  bundle exec ruby add.rb
# Calculating -------------------------------------
# contract    22.437k i/100ms
# no contract   116.177k i/100ms
# -------------------------------------------------
# contract    282.640k (± 4.5%) i/s -      1.414M
# no contract      6.450M (± 8.6%) i/s -     32.065M
#
# Comparison:
# no contract:  6450153.1 i/s
# contract:   282640.5 i/s - 22.82x slower