more on classes, have to work on asm next

lib/arm/arm_machine.rb

@@ -31,6 +31,12 @@ module Arm
       Vm::BranchCondition.new :gt
     end
 
+    # TODO wrong type, should be object_reference. But that needs the actual typing to work
+    def integer_at_index block , result ,left , right
+      block <<  ldr( result , left , right )
+      result
+    end
+
     def integer_plus block , result , left , right
       block <<  add( result , left ,  right )
       result

lib/ast/module_expression.rb

@@ -16,13 +16,15 @@ module Ast
     end
     def compile context , into
       clazz = context.object_space.get_or_create_class name
+      puts "Created class #{clazz.name.inspect}"
       context.current_class = clazz
       expressions.each do |expression|
         # check if it's a function definition and add
         # if not, execute it, but that does means we should be in crystal (executable), not ruby. ie throw an error for now
         raise "only functions for now #{expression.inspect}" unless expression.is_a? Ast::FunctionExpression
+        puts "compiling expression #{expression.inspect}"
         expression_value = expression.compile(context , nil )
-        puts "compiled return expression #{expression_value.inspect}, now return in 7"
+        #puts "compiled expression #{expression_value.inspect}"
       end
 
       return nil

lib/core/kernel.rb

@@ -31,13 +31,14 @@ module Core
         get_function = Vm::Function.new(:_get_instance_variable , [Vm::Integer , Vm::Integer ] , Vm::Integer )
         me = get_function.args[0]
         var_name = get_function.args[1]
+        return_to = get_function.return_type
         index_function = context.object_space.get_or_create_class(:Object).get_or_create_function(:index_of)
         b = get_function.body
         b.push( me )
         index = b.call( index_function )
         b.pop(me)
-        b.mov( var_name , index )
-        Vm::RegisterMachine.instance.at_index( get_function.body , number  , remainder )
+        return_to.at_index( get_function.body , me , index )
+        get_function.set_return return_to
         return get_function
       end
 

lib/vm/boot_class.rb

@@ -2,11 +2,12 @@ module Vm
   # class is mainly a list of functions with a name (for now)
   # layout of object is seperated into Layout
   class BootClass < Code
-    def initialize name , context
+    def initialize name , context , superclass = :Object
       @context = context
       # class functions
       @functions = []
       @name = name.to_sym
+      @superclass = superclass
     end
     attr_reader :name , :functions
     
@@ -24,6 +25,11 @@ module Vm
     # preferred way of creating new functions (also forward declarations, will flag unresolved later)
     def get_or_create_function name 
       fun = get_function name
+      unless fun or name == :Object
+        supr = @context.object_space.get_or_create_class(@superclass)
+        fun = supr.get_function name
+        puts "#{supr.functions.collect(&:name)} for #{name} GOT #{fun.class}" if name == :index_of
+      end
       unless fun
         fun = Core::Kernel.send(name , @context)
         raise "no such function #{name}, #{name.class}" if fun == nil

lib/vm/boot_space.rb

@@ -45,6 +45,7 @@ module Vm
     end
     
     def get_or_create_class name
+      raise "uups #{name}" unless name.is_a? Symbol
       c = @classes[name]
       unless c
         c = BootClass.new(name,@context)

lib/vm/values.rb

@@ -118,6 +118,9 @@ module Vm
     def - other
       class_for(LogicInstruction).new(nil , self , other , opcode:  :sub )#, update_status: 1 )
     end
+    def at_index block , left , right
+      RegisterMachine.instance.integer_at_index block , self , left , right
+    end
     def plus block , first , right
       RegisterMachine.instance.integer_plus block , self , first , right
     end

test/fragments/test_class.rb

@@ -6,14 +6,14 @@ class TestClass < MiniTest::Test
   def test_class
     @string_input = <<HERE
 class Object
+  def index_of( name )
+    return @layout.index_of(name) 
+  end
   def layout()
     return @layout
   end
   def class()
-    return layout.class()
-  end
-  def index_of( name )
-    return layout.index_of(name) 
+    return @layout.class()
   end
 end
 class String
@@ -21,7 +21,7 @@ class String
     return @length
   end
   def plus(str)
-    my_length = self.length() 
+    my_length = @length 
     str_len = str.length()
     new_string = String.new(my_length + str_len)
     i = 0