diff --git a/lib/ruby/send_statement.rb b/lib/ruby/send_statement.rb
index 0b8a0303..cd80b8fb 100644
--- a/lib/ruby/send_statement.rb
+++ b/lib/ruby/send_statement.rb
@@ -27,7 +27,7 @@ module Ruby
         arguments << arg.to_vool
         return
       end
-      assign = Vool::LocalAssignment.new( "tmp_#{arg.object_id}".to_sym, arg)
+      assign = Vool::LocalAssignment.new( "tmp_#{arg.object_id}".to_sym, arg.to_vool)
       statements << assign
       arguments << Vool::LocalVariable.new(assign.name)
     end
diff --git a/lib/ruby/yield_statement.rb b/lib/ruby/yield_statement.rb
index 27817860..946d6bf2 100644
--- a/lib/ruby/yield_statement.rb
+++ b/lib/ruby/yield_statement.rb
@@ -27,7 +27,7 @@ module Ruby
         arguments << arg
         return
       end
-      assign = LocalAssignment.new( "tmp_#{arg.object_id}".to_sym, arg)
+      assign = LocalAssignment.new( "tmp_#{arg.object_id}".to_sym, arg.to_vool)
       statements << assign
       arguments << LocalVariable.new(assign.name)
     end
diff --git a/lib/vool/assignment.rb b/lib/vool/assignment.rb
index 1c44135f..67a3e6cb 100644
--- a/lib/vool/assignment.rb
+++ b/lib/vool/assignment.rb
@@ -15,5 +15,10 @@ module Vool
       at_depth(depth , "#{@name} = #{@value}")
     end
 
+
+    def chain_assign(assign , compiler)
+      return assign unless @value.is_a?(SendStatement)
+      @value.to_mom(compiler) << assign
+    end
   end
 end
diff --git a/lib/vool/local_assignment.rb b/lib/vool/local_assignment.rb
index 6533f7ed..c8f423d3 100644
--- a/lib/vool/local_assignment.rb
+++ b/lib/vool/local_assignment.rb
@@ -8,11 +8,7 @@ module Vool
       from = @value.slot_definition(compiler)
       return chain_assign( Mom::SlotLoad.new(to,from) , compiler)
     end
-
-    def chain_assign(assign , compiler)
-      return assign unless @value.is_a?(SendStatement)
-      @value.to_mom(compiler) << assign
-    end
+    
   end
 
 end
diff --git a/lib/vool/statements.rb b/lib/vool/statements.rb
index 58fbb74c..60484f74 100644
--- a/lib/vool/statements.rb
+++ b/lib/vool/statements.rb
@@ -27,6 +27,9 @@ module Vool
       @statements << o
       self
     end
+    def prepend(o)
+      @statements = [o] + @statements
+    end
 
     # create mom instructions
     def to_mom( compiler )
diff --git a/test/ruby/test_variables.rb b/test/ruby/test_variables.rb
index 1dc1e32a..859b5842 100644
--- a/test/ruby/test_variables.rb
+++ b/test/ruby/test_variables.rb
@@ -70,7 +70,7 @@ module Ruby
 
     def test_instance_return
       lst = compile( "return @var" ).to_vool
-      assert_equal InstanceVariable , lst.return_value.class
+      assert_equal Vool::InstanceVariable , lst.return_value.class
     end
 
     def test_class_basic
@@ -81,7 +81,7 @@ module Ruby
 
     def test_class_return
       lst = compile( "return @@var" ).to_vool
-      assert_equal ClassVariable , lst.return_value.class
+      assert_equal Vool::ClassVariable , lst.return_value.class
     end
 
     def test_module_basic