minor

lib/virtual/integer.rb

@@ -1,47 +1,8 @@
 module Vm
-  class Integer
+  class Integer < Value
 
-    def less_or_equal block , right
+    def initialize
-      block.cmp( self ,  right )
-      Virtual::BranchCondition.new :le
-    end
-    def greater_or_equal block , right
-      block.cmp( self ,  right )
-      Virtual::BranchCondition.new :ge
-    end
-    def greater_than block , right
-      block.cmp( self ,  right )
-      Virtual::BranchCondition.new :gt
-    end
-    def less_than block , right
-      block.cmp( self ,  right )
-      Virtual::BranchCondition.new :lt
-    end
-    def plus block , first , right
-      block.add( self , left ,  right )
-      self
-    end
-    def minus block , left , right
-      block.sub( self ,  left ,  right )
-      self
-    end
-    def left_shift block , left , right
-      block.mov( self ,  left , shift_lsr: right )
-      self
-    end
-    def equals block , right
-      block.cmp( self ,  right )
-      Virtual::BranchCondition.new :eq
     end
 
-    def is_true? function
-      function.cmp( self ,  0 )
-      Virtual::BranchCondition.new :ne
-    end
-
-    def move block , right
-      block.mov(  self ,  right )
-      self
-    end
   end
 end

lib/virtual/object.rb

@@ -6,10 +6,10 @@ module Virtual
   # functions on these classes express their functionality as function objects
   class Object
     def initialize
-      @layout = Layout.new([:layout])
+      @layout = Layout.new( attributes )
     end
     def attributes
-      raise "abstract #{self}"
+      [:layout]
     end
     def == other
       return false unless other.class == self.class 
@@ -28,7 +28,7 @@ module Virtual
       @members = members
     end
     def attributes
-      [:members]
+      super << :members
     end
   end
 

lib/virtual/reference.rb

@@ -1,5 +1,5 @@
 module Vm
-  class Reference 
+  class Reference < Value
 
     def initialize clazz = nil
       @clazz = clazz