Fixing new parfait boot process

mostly about setting the types to existing objects. 
Then after space is in place, it is set automatically

also a fair bit of misc in the commit

lib/parfait/behaviour.rb

@@ -14,9 +14,7 @@ module Parfait
     end
 
     def methods
-      m = @instance_methods
-      return m if m
-      @instance_methods = List.new
+      @instance_methods
     end
 
     def method_names

lib/parfait/factory.rb

@@ -29,7 +29,7 @@ module Parfait
       @for_type = type
       @attribute_name = type.names.find {|name| name.to_s.start_with?("next")}
       @page_size = page
-      raise "No next found for #{type.class_name}" unless attribute_name
+      raise "No next found for #{type.class_name}" unless @attribute_name
     end
 
     # get the next free object, advancing the list.
@@ -37,7 +37,7 @@ module Parfait
     # This function is not realy used, as it is hard-coded in risc, but the get_more is
     # used, as it get's called from risc (or will)
     def get_next_object
-      unless( next_object )
+      unless( @next_object )
         @next_object = reserve
         get_more
       end
@@ -46,7 +46,7 @@ module Parfait
 
     # this gets the head of the freelist, swaps it out agains the next and returns it
     def get_head
-      nekst = next_object
+      nekst = @next_object
       @next_object = get_next_for(nekst)
       return nekst
     end
@@ -117,7 +117,6 @@ 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/list.rb

@@ -10,7 +10,7 @@ module Parfait
     attr_reader :indexed_length , :next_list
 
     def self.type_length
-      3    # 0 type , 1 length , 2 - next_list
+      3    # 0 type , 1 indexed_length , 2 - next_list
     end
     def self.data_length
       self.memory_size - self.type_length - 1
@@ -19,6 +19,7 @@ module Parfait
     def initialize
       super
       @indexed_length = 0
+      @next_list = nil
     end
 
     def data_length

lib/parfait/object.rb

@@ -64,7 +64,7 @@ module Parfait
     end
 
     def get_type()
-      raise "No type " + self.object_id.to_s(16) + ":" + self.class.name unless has_type?
+      raise "No type " + self.object_id.to_s(16) + " : " + self.class.name+" : " + self.to_s unless @type
       @type
     end
 

lib/parfait/type.rb

@@ -57,13 +57,7 @@ module Parfait
     # type to the global list
     def initialize( object_class , hash )
       super()
-      set_object_class( object_class)
-      init_lists( hash )
-    end
-
-    # this part of the init is seperate because at boot time we can not use normal new
-    # new is overloaded to grab the type from space, and before boot, that is not set up
-    def init_lists(hash)
+      @object_class =  object_class
       @methods = nil
       @names = List.new
       @types = List.new
@@ -75,13 +69,13 @@ module Parfait
     end
 
     def class_name
-      @object_class.name
+      @object_class&.name
     end
 
     def to_s
       str = "#{class_name}-["
       first = false
-      names.each do |name|
+      @names.each do |name|
         unless(first)
           first = true
           str += ":#{name}"
@@ -196,13 +190,6 @@ module Parfait
       return Type.for_hash( hash , object_class)
     end
 
-    def set_object_class(oc)
-      unless oc.is_a?(Class)       #but during boot a symbol is ok
-        raise "object class should be a class, not #{oc.class}"  unless oc.is_a?(Symbol)
-      end
-      @object_class = oc
-    end
-
     def instance_length
       @names.get_length()
     end

lib/parfait/word.rb

@@ -13,13 +13,13 @@ module Parfait
   # Object length is measured in non-type cells though
 
   class Word < Data8
-    attr_reader :char_length
+    attr_reader :char_length , :next_word
 
     def self.type_length
-      2    # 0 type , 1 char_length
+      3    # 0 type , 1 char_length , next_word
     end
     def self.get_length_index
-      type_length - 1
+      type_length - 2
     end
     # initialize with length. For now we try to keep all non-parfait (including String) out
     # String will contain spaces for non-zero length