Torsten Rüger
3df54910cc
was clashing with real ruby method name also many superclass mismatch fixes some misc
76 lines
2.3 KiB
Ruby
76 lines
2.3 KiB
Ruby
module Parfait
|
|
# Behaviour is the old smalltalk name for the duperclass of class and singleton_class
|
|
#
|
|
# Classes and singleton_classes are in fact very similar, in that they manage
|
|
# - the type of instances
|
|
# - the methods for instances
|
|
#
|
|
# The main way they differ is that Classes manage type for a class of objects (ie many)
|
|
# whereas singleton_class, or singleton_class manages the type of only one object (here a class)
|
|
#
|
|
# Singleton classes can manage the type/methods of any single object, and in the
|
|
# future off course they will, just not yet. Most single objects don't need that,
|
|
# only Classes and Modules _always _ do, so that's where we start.
|
|
#
|
|
class Behaviour < Object
|
|
|
|
attr_reader :instance_type , :instance_methods
|
|
|
|
def initialize(type)
|
|
super()
|
|
@instance_methods = List.new
|
|
@instance_type = type
|
|
end
|
|
|
|
def methods
|
|
@instance_methods
|
|
end
|
|
|
|
def method_names
|
|
names = List.new
|
|
methods.each do |method|
|
|
names.push method.name
|
|
end
|
|
names
|
|
end
|
|
|
|
def add_instance_method_for(name , type , frame , body )
|
|
method = Parfait::VoolMethod.new(name , type , frame , body )
|
|
add_instance_method( method )
|
|
end
|
|
|
|
def add_instance_method( method )
|
|
raise "not implemented #{method.class} #{method.inspect}" unless method.is_a? VoolMethod
|
|
@instance_methods.push(method)
|
|
method
|
|
end
|
|
|
|
def remove_instance_method( method_name )
|
|
found = get_instance_method( method_name )
|
|
found ? methods.delete(found) : false
|
|
end
|
|
|
|
def get_instance_method( fname )
|
|
raise "get_instance_method #{fname}.#{fname.class}" unless fname.is_a?(Symbol)
|
|
@instance_methods.find {|m| m.name == fname }
|
|
end
|
|
|
|
# get the method and if not found, try superclasses. raise error if not found
|
|
def resolve_method( m_name )
|
|
raise "resolve_method #{m_name}.#{m_name.class}" unless m_name.is_a?(Symbol)
|
|
method = get_instance_method(m_name)
|
|
return method if method
|
|
if( super_class_name && super_class_name != :Object )
|
|
method = @super_class.resolve_method(m_name)
|
|
end
|
|
method
|
|
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
|
|
|
|
end
|
|
end
|