Rakefile in rubype-0.2.6 vs Rakefile in rubype-0.3.0

@@ -1,8 +1,57 @@
 require "bundler/gem_tasks"
 require "rake/testtask"
+require "rake/extensiontask"
 
+#  Test
+#-----------------------------------------------
 Rake::TestTask.new(:test) do |t|
   t.libs << "test"
 end
 
-task default: :test
+#  Compile C extension
+#-----------------------------------------------
+Rake::ExtensionTask.new("rubype") do |ext|
+  ext.lib_dir = "lib/rubype"
+end
+
+task :compile_and_test do
+  Rake::Task['compile'].invoke
+  Rake::Task['test'].invoke
+end
+
+#  Benchmark
+#-----------------------------------------------
+desc "Compare with pure ruby"
+task :benchmark do
+  require "benchmark/ips"
+  require "rubype"
+  require "rubype/version"
+
+  puts "ruby version: #{RUBY_VERSION}"
+  class PureClass
+    def sum(x, y)
+      x + y
+    end
+  end
+  pure_instance = PureClass.new
+
+  puts "rubype version: #{Rubype::VERSION}"
+  class RubypeClass
+    def sum(x, y)
+      x + y
+    end
+    typesig :sum, [Numeric, Numeric] => Numeric
+  end
+  rubype_instance = RubypeClass.new
+
+  Benchmark.ips do |x|
+    x.report('Pure Ruby') { pure_instance.sum(4, 2) }
+    x.report('Rubype') { rubype_instance.sum(4, 2) }
+
+    x.compare!
+  end
+end
+task bm: :benchmark
+
+
+task default: :compile_and_test