fix true false and nil constant

going from mom to parfait
basics in place, more ripples to fix

lib/mom/instruction/basic_values.rb

@@ -29,16 +29,25 @@ module Mom
     end
   end
   class TrueConstant < Constant
+    def to_parfait(compiler)
+      Parfait.object_space.true_object
+    end
     def ct_type
       Parfait.object_space.get_class_by_name(:TrueClass).instance_type
     end
   end
   class FalseConstant < Constant
+    def to_parfait(compiler)
+      Parfait.object_space.false_object
+    end
     def ct_type
       Parfait.object_space.get_class_by_name(:FalseClass).instance_type
     end
   end
   class NilConstant < Constant
+    def to_parfait(compiler)
+      Parfait.object_space.nil_object
+    end
     def ct_type
       Parfait.object_space.get_class_by_name(:NilClass).instance_type
     end
@@ -48,6 +57,11 @@ module Mom
     def initialize(value)
       @value = value
     end
+    def to_parfait(compiler)
+      value = Parfait.new_word(@value)
+      compiler.add_constant(value)
+      value
+    end
     def ct_type
       Parfait.object_space.get_class_by_name(:Word).instance_type
     end

lib/parfait/integer.rb

@@ -29,10 +29,19 @@ module Parfait
   end
 
   # adding other base classes in here for now:
-  class FalseClass
+  class FalseClass < Data2
+    #FIXME: this is "just" for compilation
+    def initialize
+    end
   end
-  class TrusClass
+  class TrueClass < Data2
+    #FIXME: this is "just" for compilation
+    def initialize
+    end
   end
-  class NilClass
+  class NilClass < Data2
+    #FIXME: this is "just" for compilation
+    def initialize
+    end
   end
 end

lib/parfait/space.rb

@@ -44,9 +44,13 @@ module Parfait
       @classes.each do |name , cl|
         add_type(cl.instance_type)
       end
+      @true_object = Parfait::TrueClass.new
+      @false_object = Parfait::FalseClass.new
+      @nil_object = Parfait::NilClass.new
     end
 
-    attr_reader  :classes , :first_message
+    attr_reader  :classes , :first_message , :first_integer
+    attr_reader  :true_object , :false_object , :nil_object
 
     def each_type
       @types.values.each do |type|

lib/risc/boot.rb

@@ -140,8 +140,9 @@ module Risc
           Kernel: {}, #fix, kernel is a class, but should be a module
           BinaryCode: {next: :BinaryCode} ,
           Space: {classes: :Dictionary , types: :Dictionary ,
-                  first_message: :Message , single_true: :TrueClass,
-                  single_false: :FalseClass , single_nil: :NilClass},
+                  first_message: :Message , first_integer: :Integer ,
+                  true_object: :TrueClass,
+                  false_object: :FalseClass , nil_object: :NilClass},
           NamedList: {},
           Type: {names: :List , types: :List  ,
                  object_class: :Class, methods: :List } ,