wycats · October 7, 2015 06:28 · Oct 7, 2015
diff --git a/gistfile1.txt b/gistfile1.txt
@@ -0,0 +1,31 @@
+module Mst
+
+  def self.included(base)
+    base.extend(ClassMethods)
+  end
+
+  module ClassMethods
+    def before(method_name)
+      m = instance_method(method_name)
+      define_method method_name do |*args, &block|
+        yield
+        m.bind(self).(*args, &block)
+      end
+    end
+  end
+end
+
+class Foo
+  include Mst
+
+  def test
+    puts "test"
+  end
+
+  before :test do
+    puts "before"
+  end
+end
+
+
+Foo.new.test