method marking for labels

lib/register/instructions/label.rb

@@ -18,6 +18,11 @@ module Register
       "Label: #{@name} (#{self.next.class})"
     end
 
+    # a method start has a label of the form Class.method , test for that
+    def is_method
+      @name.split(".").length == 2
+    end
+
     def to_ac labels = []
       return [] if labels.include?(self)
       labels << self
@@ -57,6 +62,11 @@ module Register
       self.next.set_position(position,labels)
     end
 
+    # shame we need this, just for logging
+    def byte_length
+      0
+    end
+
     def each_label labels =[] , &block
       return if labels.include?(self)
       labels << self

test/register/test_instructions.rb

@@ -70,5 +70,12 @@ module Register
       start.each_label { |l| count += 1 }
       assert_equal 2 , count
     end
+    def test_label_is_method
+      label = Label.new("test" , "Object.test")
+      assert label.is_method
+    end
+    def test_label_is_not_method
+      assert ! @label.is_method
+    end
   end
 end