remove the last_object from chain

also tried to keep the first around as was done in space
partially to not have to add the consrtants seperately
didn't work, as chain gets broken
also this has to be redone anyway

lib/parfait/factory.rb

@@ -13,7 +13,7 @@ module Parfait
   # factory when the next (not current) is nil.
   # This is btw just as easy a check, as the next needs to be gotten to swap the list.
   class Factory < Object
-    attr :type , :for_type , :next_object , :last_object , :reserve , :attribute_name
+    attr :type , :for_type , :next_object , :reserve , :attribute_name
 
     PAGE_SIZE = 1024
     RESERVE = 10
@@ -50,8 +50,8 @@ module Parfait
     # and rebuilt the reserve (get_next already instantiates the reserve)
     #
     def get_more
-      chain = get_chain
-      link = chain
+      first_object = get_chain
+      link = first_object
       count = RESERVE
       while(count > 0)
         link = get_next_for(link)
@@ -59,7 +59,8 @@ module Parfait
       end
       self.next_object = get_next_for(link)
       set_next_for( link , nil )
-      self.reserve = chain
+      self.reserve = first_object
+      self
     end
 
     # this initiates the syscall to get more memory.
@@ -111,6 +112,7 @@ module Parfait
       r_class = eval( "Parfait::#{type.object_class.name}" )
       obj = r_class.allocate
       obj.set_type(type)
+      #puts "Factory #{type.object_class.name} at 0x#{obj.object_id.to_s(16)}"
       obj
     end
   end

lib/parfait/integer.rb

@@ -1,12 +1,10 @@
-
-# Integer class for representing maths on Integers
-# Integers are Objects, specifically DataObjects
-# - they have fixed value
-# - they are immutable
-# (both by implementation, not design.
-# Ie it would be possible to change the value, we just don't support that)
-
 module Parfait
+  # Integer class for representing maths on Integers
+  # Integers are Objects, specifically DataObjects
+  # - they have fixed value
+  # - they are immutable
+  # (both by implementation, not design.
+  # Ie it would be possible to change the value, we just don't support that)
   class Integer < Data4
 
     attr :type, :next_integer
@@ -55,6 +53,10 @@ module Parfait
   #
   # But the integer (address) needs to be adjusted by load address.
   class ReturnAddress < Integer
+
+    def to_s
+      "ReturnAddress 0x#{object_id.to_s(16)}:#{value}"
+    end
   end
 
   # adding other base classes in here for now:

lib/parfait/object.rb

@@ -27,10 +27,8 @@ module Parfait
 
     def self.new( *args )
       object = self.allocate
-
       # have to grab the class, because we are in the ruby class not the parfait one
       cl = Parfait.object_space.get_class_by_name( self.name.split("::").last.to_sym)
-
       # and have to set the type before we let the object do anything. otherwise boom
       object.set_type cl.instance_type
       object.send :initialize , *args

lib/risc/collector.rb

@@ -6,7 +6,9 @@ module Risc
   module Collector
     def self.collect_space(linker)
       keep Parfait.object_space , 0
-      linker.constants.each {|obj| keep(obj,0)}
+      linker.constants.each do |obj|
+        keep(obj,0)
+      end
       Position.positions
     end
 

test/parfait/test_factory.rb

@@ -1,7 +1,7 @@
 require_relative "helper"
 
 module Parfait
-  class TestPage < ParfaitTest
+  class TestFactory < ParfaitTest
 
     def setup
       super
@@ -18,12 +18,15 @@ module Parfait
     end
     def test_no_next
       assert_nil @factory.next_object
-      assert_nil @factory.last_object
       assert_nil @factory.reserve
     end
     def test_get_next_object
       assert_equal Parfait::Integer ,  @factory.get_next_object.class
     end
+    def test_first_is_reserve
+      @factory.get_next_object
+      assert_equal Parfait::Integer , @factory.reserve.class
+    end
     def test_chain_length
       count = 0
       start = @factory.get_next_object