shift code from class to module
as class derives from module, module carries much of the code that one thinks of as class class only handles allocation really
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@ -16,49 +16,13 @@ module Parfait
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class Class < Module
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def initialize name , super_class = nil
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super()
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super( name , super_class)
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# class methods
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@instance_methods = []
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@name = name.to_sym
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@super_class = super_class
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@meta_class = Virtual::MetaClass.new(self)
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@object_layout = []
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end
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attr_reader :name , :instance_methods , :meta_class , :context , :super_class_name
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def add_instance_method method
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raise "not a method #{method.class} #{method.inspect}" unless method.is_a? Virtual::CompiledMethod
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raise "syserr " unless method.name.is_a? Symbol
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@instance_methods << method
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end
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# this needs to be done during booting as we can't have all the classes and superclassses
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# instantiated. By that logic it should maybe be part of vm rather.
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# On the other hand vague plans to load the hierachy from sof exist, so for now...
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def set_super_class sup
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@super_class = sup
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end
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def set_instance_names list
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@object_layout = Layout.new_object
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@object_layout.set_names list
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end
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def get_instance_method fname
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fname = fname.to_sym
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@instance_methods.detect{ |fun| fun.name == fname }
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end
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# get the method and if not found, try superclasses. raise error if not found
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def resolve_method m_name
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method = get_instance_method(m_name)
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unless method
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unless( @name == "Object" )
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supr = Space.space.get_class_by_name(@super_class_name)
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method = supr.resolve_method(m_name)
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end
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end
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raise "Method not found #{m_name}, for #{@name}" unless method
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method
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def add_instance_name name
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@object_layout.push name
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end
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@@CLAZZ = { :names => [:name , :super_class_name , :instance_methods] , :types => [Virtual::Reference,Virtual::Reference,Virtual::Reference]}
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@ -13,6 +13,45 @@
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module Parfait
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class Module < Object
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def initialize name , superclass
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@instance_methods = []
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@name = name.to_sym
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@super_class = superclass
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@meta_class = Virtual::MetaClass.new(self)
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end
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def add_instance_method method
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raise "not a method #{method.class} #{method.inspect}" unless method.is_a? Virtual::CompiledMethod
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raise "syserr " unless method.name.is_a? Symbol
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@instance_methods << method
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end
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# this needs to be done during booting as we can't have all the classes and superclassses
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# instantiated. By that logic it should maybe be part of vm rather.
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# On the other hand vague plans to load the hierachy from sof exist, so for now...
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def set_super_class sup
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@super_class = sup
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end
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def get_instance_method fname
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fname = fname.to_sym
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@instance_methods.detect{ |fun| fun.name == fname }
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end
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# get the method and if not found, try superclasses. raise error if not found
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def resolve_method m_name
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method = get_instance_method(m_name)
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unless method
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unless( @name == "Object" )
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supr = Space.space.get_class_by_name(@super_class_name)
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method = supr.resolve_method(m_name)
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end
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end
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raise "Method not found #{m_name}, for #{@name}" unless method
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method
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end
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# :<, :<=, :>, :>=, :included_modules, :include?, :name, :ancestors, :instance_methods, :public_instance_methods,
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# :protected_instance_methods, :private_instance_methods, :constants, :const_get, :const_set, :const_defined?,
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# :const_missing, :class_variables, :remove_class_variable, :class_variable_get, :class_variable_set,
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@ -17,10 +17,15 @@ module Parfait
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LAYOUT_INDEX = 1
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CLASS_INDEX = 2 #only used in class, but keep constants together
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def self.new_object *args
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object = self.new(*args)
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object
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end
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def get_type_of( index )
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type_word = internal_object_get( TYPE_WORD )
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res = type_word >> (index*4)
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# least significant nibble, this is still adhoc, not test. but the idea is there
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# least significant nibble, this is still adhoc, not tested. but the idea is there
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res & 0xF
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end
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@ -31,7 +36,7 @@ module Parfait
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# data that every object carries.
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def get_class()
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l = get_layout()
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puts "Layout #{l}"
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puts "Layout #{l.class} in #{self.class}"
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l.get_object_class()
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end
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@ -58,9 +58,8 @@ module Parfait
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c
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end
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def create_class name , variable_names
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def create_class name
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c = Class.new_object(name)
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c.set_instance_names Virtual.new_list(variable_names)
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@classes[name] = c
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end
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@ -16,12 +16,6 @@ module Parfait
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# These are the same functions that Builtin implements at run-time
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class Object
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include FakeMem
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def self.new_object *args
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# Space.space.get_class_by_name(:Word)
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#puts "I am #{self}"
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object = self.new(*args)
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object
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end
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# these internal functions are _really_ internal
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# they respresent the smallest code needed to build larger functionality
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# but should _never_ be used outside parfait. in fact that should be impossible
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@ -134,7 +134,7 @@ module Virtual
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def boot_classes!
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values = [ "Integer" , "Object" , "Value" , "Kernel"]
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rest = ["Word" , "Class" , "Dictionary" , "Space" , "List", "Layout"]
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(values + rest).each { |cl| @space.create_class(cl , []) }
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(values + rest).each { |cl| @space.create_class(cl) }
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value_class = @space.get_class_by_name "Value"
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@space.get_class_by_name("Integer").set_super_class( value_class )
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object_class = @space.get_class_by_name("Object")
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