move space to parfait

Also make the machine the singleton
and space hang off it

Many repercussions, not all fixed in this commit

lib/parfait/class.rb

@@ -40,7 +40,7 @@ module Parfait
       method = get_instance_method(m_name)
       unless method
         unless( @name == :Object)
-          supr = BootSpace.space.get_or_create_class(@super_class_name)
+          supr = Space.space.get_or_create_class(@super_class_name)
           method = supr.resolve_method(m_name)
         end
       end

lib/parfait/space.rb

@@ -8,10 +8,63 @@
 # "New" is slightly misleading in that normal operation only ever
 # recycles objects.
 
+require "register/builtin/object"
+
 module Parfait
+  # The Space contains all objects for a program. In functional terms it is a program, but in oo
+  # it is a collection of objects, some of which are data, some classes, some functions
+
+  # The main entry is a function called (of all things) "main", This _must be supplied by the compling
+  # There is a start and exit block that call main, which receives an array of strings
+
+  # While data ususally would live in a .data section, we may also "inline" it into the code
+  # in an oo system all data is represented as objects
+
   class Space < Object
 
-    # ObjectSpace
-    # :each_object, :garbage_collect, :define_finalizer, :undefine_finalizer, :_id2ref, :count_objects
+    def initialize
+      super()
+      @classes = Parfait::Hash.new_object
+      #global objects (data)
+      @objects = []
+      @symbols = []
+      @frames = 100.times.collect{ ::Parfait::Frame.new([],[])}
+      @messages = 100.times.collect{ ::Parfait::Message.new }
+      @next_message = @messages.first
+      @next_frame = @frames.first
+    end
+    attr_reader  :init , :main , :classes , :objects , :symbols,:messages, :next_message , :next_frame
+
+    @@SPACE = { :names => [:classes,:objects,:symbols,:messages, :next_message , :next_frame] ,
+                :types => [Virtual::Reference,Virtual::Reference,Virtual::Reference,Virtual::Reference,Virtual::Reference]}
+    def layout
+      @@SPACE
+    end
+
+    # Objects are data and get assembled after functions
+    def add_object o
+      return if @objects.include?(o)
+      @objects << o
+      if o.is_a? Symbol
+        @symbols << o
+      end
+    end
+
+    # this is the way to instantiate classes (not BootClass.new)
+    # so we get and keep exactly one per name
+    def get_or_create_class name
+      raise "uups #{name}.#{name.class}" unless name.is_a? Symbol
+      c = @classes[name]
+      unless c
+        c = Class.new_object(name)
+        @classes[name] = c
+      end
+      c
+    end
+    def mem_length
+      padded_words( 5 )
+    end
   end
+  # ObjectSpace
+  # :each_object, :garbage_collect, :define_finalizer, :undefine_finalizer, :_id2ref, :count_objects
 end