added a few more commands to 'experimental' command set

lib/pry/extended_commands/experimental.rb

@@ -7,10 +7,43 @@ class Pry
         output.puts opts[:eval_string]
       end
 
+      command "power" do
+        instance_eval opts[:ni_arg_string]
+      end
+
       command "play-string", "Play a string as input" do
         Pry.active_instance.input = StringIO.new(opts[:arg_string])
       end
 
+      command "play-method", "Play a method source as input" do |*args|
+        target = target()
+        opt = Slop.parse!(args) do |opt|
+          opt.banner "Usage: play-method [--replay START..END] [--clear] [--grep PATTERN] [--help]\n"
+
+          opt.on :l, :lines, 'The line (or range of lines) to replay.', true, :as => Range
+          opt.on :h, :help, "This message." do
+            output.puts opt
+          end
+        end
+
+        next if opt.help?
+
+        meth_name = args.shift
+        if (meth = get_method_object(meth_name, target, {})).nil?
+          output.puts "Invalid method name: #{meth_name}. Type `play-method --help` for help"
+          next
+        end
+
+        code, code_type = code_and_code_type_for(meth)
+        next if !code
+
+        slice = opt[:l] ? opt[:l] : (0..-1)
+
+        sliced_code = code.each_line.to_a[slice].join("\n")
+
+        Pry.active_instance.input = StringIO.new(sliced_code)
+      end
+
     end
   end
 end