lib/night_vision.rb in night_vision-0.0.1 vs lib/night_vision.rb in night_vision-0.1.0

@@ -1,5 +1,24 @@
 require "night_vision/version"
 
 module NightVision
-  # Your code goes here...
-end
+  DIVIDER = "------------------------------------------------"
+  def self.goggles(*classes)
+    classes.each do |klass|
+      klass.instance_methods.each do |method|
+        m = klass.instance_method(method)
+        klass.send(:define_method, method) do |*args, &block|
+          puts DIVIDER
+          puts "Invoking #{m.owner}##{method}"
+          puts "Actual arguments are: #{args}"
+          puts DIVIDER
+          val = m.bind(self).(*args, &block)
+          puts DIVIDER
+          puts "Returning from #{m.owner}##{method}"
+          puts "Return value is: #{val}"
+          puts DIVIDER
+          val
+        end
+      end
+    end
+  end
+end
\ No newline at end of file