Torsten Rüger
e61c5d4a55
Since some weeks, Parfait uses instance variables instead of generated attribute getters (that needed type) This makes it possible to simplify the boot process, getting rid of separate boot Space and class versions. It is still quite order dependent, but all "normal" ruby code, (less magic) so easier to understand. Also moved all code that can never run at runtime into the adapter. This included Space and Object new, space as the space will only ever be created at compile time and object, since that is quite different at run-time (which is where i am working towards)
79 lines
2.7 KiB
Ruby
79 lines
2.7 KiB
Ruby
# Class is mainly a list of methods with a name.
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# The methods are untyped, sis VoolMethod.
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# The memory layout of an object is determined by the Type (see there).
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# The class carries the "current" type, ie the type an object would be if you
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# created an instance of the class.
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# Note that this changes over time and so many types share the same class.
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# For dynamic OO it is essential that the class (the object defining the class)
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# can carry methods. It does so in an instance variable methods.
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# An Object carries the data for the instance variables it has.
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# The Type lists the names of the instance variables
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# The Class keeps a list of instance methods, these have a name and (vool) code
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# Each type in turn has a list of CallableMethods that hold binary code
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module Parfait
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class Class < Behaviour
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attr_reader :name , :super_class_name , :meta_class
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def self.type_length
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6
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end
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def self.memory_size
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8
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end
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def initialize( name , superclass , instance_type)
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super(instance_type)
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@name = name
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@super_class_name = superclass
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@meta_class = MetaClass.new( self , self.type || @name)
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end
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def rxf_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 to_s
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inspect
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end
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# return the super class, but raise exception if either the super class name
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# or the super classs is nil.
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# Use only for non Object base class
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def super_class!
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raise "No super_class for class #{@name}" unless @super_class_name
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s = super_class
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raise "superclass not found for class #{@name} (#{@super_class_name})" unless s
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s
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end
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# return the super class
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# we only store the name, and so have to resolve.
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# Nil name means no superclass, and so nil is a valid return value
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def super_class
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return nil unless @super_class_name
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Object.object_space.get_class_by_name(@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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