another step closer to a working oo system

lib/arm/memory_instruction.rb

@@ -11,7 +11,7 @@ module Arm
       @attributes[:update_status] = 0 if @attributes[:update_status] == nil
       @attributes[:condition_code] = :al if @attributes[:condition_code] == nil
       @operand = 0
-
+      raise "alert" if right.is_a? Vm::Block
       @pre_post_index = 0 #P flag
       @add_offset = 0 #U flag
       @is_load = opcode.to_s[0] == "l" ? 1 : 0 #L (load) flag
@@ -31,7 +31,10 @@ module Arm
         @rn = arg
         if @right
           @operand = @right
+          #TODO better test, this operand integer (register) does not work. but sleep first
+          @operand = @operand.register if @operand.is_a? Vm::Integer
           unless( @operand.is_a? Symbol)
+            puts "operand #{@operand.inspect}"
             if (@operand < 0)
               @add_offset = 0
               #TODO test/check/understand

lib/ast/basic_expressions.rb

@@ -35,7 +35,7 @@ module Ast
       "#{self.class.name}.new(#{name})"
     end
     def to_s
-      name
+      name.to_s
     end
     def attributes
       [:name]
@@ -54,7 +54,7 @@ module Ast
       self.class.name + '.new("' + string + '")'
     end
     def to_s
-      '"' + string + '"'
+      '"' + string.to_s + '"'
     end
     def compile context , into
       value = Vm::StringConstant.new(string)

lib/ast/call_site_expression.rb

@@ -13,15 +13,21 @@ module Ast
     def compile context , into
       params = args.collect{ |a| a.compile(context, into) }
 
-      r = context.current_class.name
-      if !receiver.nil? and receiver.name != :self
-        r = receiver.name 
-        raise "uups #{receiver.class}.#{receiver.name.class}" unless r.is_a? Symbol
+      if receiver.name == :self
+        function = context.current_class.get_or_create_function(name)
+      elsif receiver.is_a? ModuleName
+        c_name = receiver.name
+        clazz = context.object_space.get_or_create_class c_name
+        raise "uups #{clazz}.#{c_name}" unless clazz
+        #class qualifier, means call from metaclass
+        clazz = clazz.meta_class
+        function = clazz.get_or_create_function(name)
+      elsif receiver.is_a? VariableExpression
+        raise "not implemented instance var:#{receiver}"
+      else
+        raise "not implemented case (dare i say system error):#{receiver}"
       end
-      clazz = context.object_space.get_or_create_class r
-
-      function = context.current_class.get_function(name)
-      raise "Forward declaration not implemented for #{clazz.name}:#{name} #{inspect}" if function == nil
+      raise "No such method error #{clazz.to_s}:#{name}" if function == nil
       call = Vm::CallSite.new( name ,  params  , function)
       current_function = context.function
       current_function.save_locals(context , into) if current_function

lib/boot/object.rb

@@ -24,10 +24,10 @@ module Boot
         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)
-        return_to.at_index( get_function.body , me , index )
+        b.push( [me] )
+        b.call( index_function )
+        b.pop([me])
+        return_to.at_index( get_function.body , me , return_to )
         get_function.set_return return_to
         return get_function
       end

lib/core/array.rb

@@ -1,26 +1,6 @@
 # this is not a "normal" ruby file, ie it is not required by crystal
 # instead it is parsed by crystal to define part of the crystal that runs
 
-class BaseObject
-  
-  def _set_instance_variable(name , value)
-    
-  end
-  
-  def _get_instance_variable( name )
-    
-  end
-
-  def _get_singleton_method(name )
-    
-  end
-  def _add_singleton_method(method)
-    
-  end
-  def initialize
-  end
-end
-
 class Array < BaseObject
   def initialize size
     

lib/vm/boot_class.rb

@@ -21,9 +21,11 @@ module Vm
       @functions << function
     end
 
-    def get_function name
-      name = name.to_sym
-      @functions.detect{ |f| f.name == name }
+    def get_function fname
+      fname = fname.to_sym
+      f = @functions.detect{ |f| f.name == fname }
+      names = @functions.collect{|f| f.name } 
+      f
     end
 
     # way of creating new functions that have not been parsed.
@@ -36,12 +38,15 @@ module Vm
       end
       unless fun
         fun = Core::Kernel.send(name , @context)
-        raise "no such function #{name}, #{name.class}" if fun == nil
+        return nil if fun == nil
         @functions << fun
       end
       fun
     end
 
+    def inspect
+      "BootClass #{@name} , super #{@super_class} #{@functions.length} functions"
+    end
     # Code interface follows. Note position is inheitted as is from Code
 
     # length of the class is the length of it's functions

lib/vm/boot_space.rb

@@ -45,6 +45,7 @@ module Vm
       # dummies, just for the other to compile
       obj = get_or_create_class :Object
       [:index_of , :_get_instance_variable].each do |f|
+        puts "adding #{f}"
         obj.add_function Boot::Object.send(f , @context)
       end
     end

lib/vm/constants.rb

@@ -26,6 +26,7 @@ module Vm
     attr_reader :string
     # currently aligned to 4 (ie padded with 0) and off course 0 at the end
     def initialize str
+      str = str.to_s if str.is_a? Symbol
       length = str.length 
       # rounding up to the next 4 (always adding one for zero pad)
       pad =  ((length / 4 ) + 1 ) * 4 - length

lib/vm/meta_class.rb

@@ -26,8 +26,12 @@ module Vm
 
     def get_function name
       name = name.to_sym
-      @functions.detect{ |f| f.name == name }
+      f = @functions.detect{ |f| f.name == name }
+      puts "no function for #{name} in Meta #{@me_self.inspect}" unless f
+      f
+    end
+    def inspect
+      "#{@me_self}, #{@functions.length} functions"
     end
-        
   end
 end

test/fragments/test_while_fibo.rb

@@ -3,7 +3,7 @@ require_relative 'helper'
 class TestWhileFragment < MiniTest::Test
   include Fragments
 
-  def test_while
+  def test_while_fibo
     @string_input = <<HERE
 def fibonaccit(n) # n == r0
       a = 0           # a == r1