84 lines
3.1 KiB
Ruby
84 lines
3.1 KiB
Ruby
# Class is mainly a list of methods with a name (for now)
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# The memory layout of object is seperated into Layout
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# A class describes the capabilities of a group of objects, ie what data it has
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# and functions it responds to.
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#
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# So it is essential that the class (the object defining the class)
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# can carry methods. It does so as instance variables.
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# In fact this property is implemented in the Layout, as methods
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# may be added to any object at run-time
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# An Object carries the data for the instance variables it has
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# The Layout lists the names of the instance variables
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# The class keeps a list of instance methods, these have a name and code
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module Parfait
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class Class < Object
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include Behaviour
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attributes [:object_layout , :name , :super_class_name]
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def initialize name , superclass
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super()
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self.name = name
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self.super_class_name = superclass
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# the layout for this class (class = object of type Class) carries the class
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# as an instance. The relation is from an object through the Layout to it's class
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# TODO the object layout should copy the stuff from superclass
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self.object_layout = Layout.new(self)
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end
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def allocate_object
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#space, and ruby allocate
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end
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def add_instance_name name
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self.object_layout.push name
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end
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def sof_reference_name
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name
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end
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def inspect
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"Class(#{name})"
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end
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def create_instance_method method_name , arguments
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raise "create_instance_method #{method_name}.#{method_name.class}" unless method_name.is_a?(Symbol)
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clazz = object_layout().object_class()
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raise "??? #{method_name}" unless clazz
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#puts "Self: #{self.class} clazz: #{clazz.name}"
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add_instance_method Method.new( clazz , method_name , arguments )
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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_name sup
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raise "super_class_name must be a name, not #{sup}" unless sup.is_a?(Symbol)
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self.super_class_name = sup
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end
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def super_class
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Parfait::Space.object_space.get_class_by_name(self.super_class_name)
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end
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# ruby 2.1 list (just for reference, keep at bottom)
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#:allocate, :new, :superclass
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# + modules
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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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# :class_variable_defined?, :public_constant, :private_constant, :singleton_class?, :include, :prepend,
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# :module_exec, :class_exec, :module_eval, :class_eval, :method_defined?, :public_method_defined?,
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# :private_method_defined?, :protected_method_defined?, :public_class_method, :private_class_method, :autoload,
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# :autoload?, :instance_method, :public_instance_method
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end
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end
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