move parfait up one, as per its module structure

lib/parfait/class.rb

@@ -0,0 +1,79 @@
+# Class is mainly a list of methods with a name. The methods are untyped.
+
+# The memory layout of an object is determined by the Type (see there).
+# The class carries the "current" type, ie the type an object would be if you created an instance
+# of the class. Note that this changes over time and so many types share the same class.
+
+# For dynamic OO it is essential that the class (the object defining the class)
+# can carry methods. It does so as instance variables.
+# In fact this property is implemented in the Type, as methods
+# may be added to any object at run-time.
+
+# An Object carries the data for the instance variables it has.
+# The Type lists the names of the instance variables
+# The Class keeps a list of instance methods, these have a name and code
+
+module Parfait
+  class Class < Object
+    include Behaviour
+
+    attr_reader :instance_type , :name , :instance_methods , :super_class_name
+
+    def initialize( name , superclass , instance_type)
+      super()
+      @name = name
+      @super_class_name = superclass
+      @methods = {}
+      set_instance_type( instance_type )
+    end
+
+    def sof_reference_name
+      name
+    end
+
+    def inspect
+      "Class(#{name})"
+    end
+
+    def add_method(method)
+      @methods[method.name] = method
+    end
+
+    def get_method(name)
+      @methods[name]
+    end
+
+    # adding an instance changes the instance_type to include that variable
+    def add_instance_variable( name , type)
+      @instance_type = @instance_type.add_instance_variable( name , type )
+    end
+
+    # setting the type generates all methods for this type
+    # (or will do, once we store the methods code to do that)
+    def set_instance_type( type )
+      raise "type must be type #{type}" unless type.is_a?(Type)
+      @instance_type = type
+    end
+
+    def super_class
+      raise "No super_class for class #{@name}" unless @super_class_name
+      s = Parfait.object_space.get_class_by_name(@super_class_name)
+      raise "superclass not found for class #{@name} (#{@super_class_name})" unless s
+      s
+    end
+
+
+    # ruby 2.1 list (just for reference, keep at bottom)
+    #:allocate, :new, :superclass
+
+    # + modules
+    # :<, :<=, :>, :>=, :included_modules, :include?, :name, :ancestors, :instance_methods, :public_instance_methods,
+    # :protected_instance_methods, :private_instance_methods, :constants, :const_get, :const_set, :const_defined?,
+    # :const_missing, :class_variables, :remove_class_variable, :class_variable_get, :class_variable_set,
+    # :class_variable_defined?, :public_constant, :private_constant, :singleton_class?, :include, :prepend,
+    # :module_exec, :class_exec, :module_eval, :class_eval, :method_defined?, :public_method_defined?,
+    # :private_method_defined?, :protected_method_defined?, :public_class_method, :private_class_method, :autoload,
+    # :autoload?, :instance_method, :public_instance_method
+
+  end
+end