wit metaclass and class functions

needs to go back to arrays first
This commit is contained in:
Torsten Ruger
2015-10-25 15:40:12 +02:00
parent 0d001ec0fc
commit b7d0ee8f99
5 changed files with 97 additions and 31 deletions

View File

@ -1,7 +1,5 @@
module Parfait
# TODO : rethink - possibly needs to be a module to be mixed into Object
#
# class that acts like a class, but is really the object
# described in the ruby language book as the eigenclass, what you get with
@ -9,19 +7,23 @@ module Parfait
# class << self <--- this is called the eigenclass, or metaclass, and really is just
# .... the class object but gives us the ability to use the
# syntax as if it were a class
# PS: can't say i fancy the << self syntax and am considerernig adding a
# keyword for it, like meta
# In effect it is a very similar construct to def self.function(...)
# So one could write def meta.function(...) and thus define on the meta-class
#
class MetaClass < Object
# no name, nor nothing. as this is just the object really
attribute :me
# def initialize(object)
# super()
# self.functions = []
# self.me_self = object
# end
def initialize(object)
super()
self.me = object
end
def super_class
Space.object_space.get_class_by_name(self.me.super_class_name).meta
end
def name
"Meta#{me.name}".to_sym
end
# in a non-booting version this should map to _add_singleton_method
# def add_function function
# raise "not a function #{function}" unless function.is_a? Register::Function

View File

@ -5,44 +5,41 @@ module Soml
#puts statement.inspect
return_type , name , parameters, kids , receiver = *statement
name = name.to_a.first
raise "Already in method #{@method}" if @method
args = parameters.to_a.collect do |p|
raise "error, argument must be a identifier, not #{p}" unless p.type == :parameter
Parfait::Variable.new( *p)
end
if receiver
# compiler will always return slot. with known value or not
r = receiver.first
if( r.is_a? Parfait::Class )
class_name = r.value.name
class_method = nil
if(receiver )
if( receiver.first == :self) #class method
class_method = @clazz
@clazz = @clazz.meta_class
else
if( r != :self)
raise "unimplemented case in function #{r}"
else
r = Register::Self.new()
class_name = method.for_class.name
end
raise "Not covered #{receiver}"
end
else
r = @clazz
class_name = @clazz.name
end
raise "Already in method #{@method}" if @method
r = @clazz
class_name = @clazz.name
@method = @clazz.get_instance_method( name )
if(@method)
#puts "Warning, redefining method #{name}" unless name == :main
#TODO check args / type compatibility
@method.source.init @method
else
@method = Register::MethodSource.create_method(class_name, return_type, name , args )
@method.for_class.add_instance_method @method
@method = Register::MethodSource.create_method_for(@clazz, return_type, name , args )
@clazz.add_instance_method @method
end
@method.source.receiver = r
#puts "compile method #{@method.name}"
kids.to_a.each do |ex|
ret = process(ex)
process(ex)
end
@clazz = class_method if class_method
@method = nil
# function definition is a statement, does not return any value
return nil