renamed program to boot_space, as in object_space at boot time. thats the way its going

lib/ast/basic_expressions.rb

@@ -58,7 +58,7 @@ module Ast
 
     def compile context , into
       value = Vm::StringConstant.new(string)
-      context.program.add_object value 
+      context.object_space.add_object value 
       value
     end
     def attributes

lib/ast/call_site_expression.rb

@@ -8,7 +8,7 @@ module Ast
     end
     def compile context , into
       params = args.collect{ |a| a.compile(context, into) }
-      function = context.program.get_or_create_function(name)
+      function = context.object_space.get_or_create_function(name)
       raise "Forward declaration not implemented (#{name}) #{inspect}" if function == nil
       call = Vm::CallSite.new( name ,  params  , function)
       current_function = context.function

lib/ast/function_expression.rb

@@ -27,7 +27,7 @@ module Ast
         args << arg_value
       end
       function = Vm::Function.new(name , args )
-      context.program.add_function function
+      context.object_space.add_function function
 
       parent_locals = context.locals
       parent_function = context.function

lib/ast/module_expression.rb

@@ -15,6 +15,13 @@ module Ast
       [:name , :expressions]
     end
     def compile context , into
+      # create the class or module
+      # check if it'sa 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
+      clazz = context.object_space.get_or_create_class name
+      
+
+
       expression_value = expression.compile(context , into)
       puts "compiled return expression #{expression_value.inspect}, now return in 7"
       # copied from function expression: TODO make function

lib/core/array.rb

@@ -0,0 +1,36 @@
+# 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
+    
+  end
+
+  def at(index)
+    
+  end
+  
+  def set(index , value)
+    
+  end
+end

lib/core/kernel.rb

@@ -35,10 +35,10 @@ module Core
       def putint context , arg = Vm::Integer
         putint_function = Vm::Function.new(:putint , [arg] , arg )
         buffer = Vm::StringConstant.new("           ") # create a buffer
-        context.program.add_object buffer              # and save it (function local variable: a no no)
+        context.object_space.add_object buffer              # and save it (function local variable: a no no)
         int = putint_function.args.first
         moved_int = putint_function.new_local
-        utoa = context.program.get_or_create_function(:utoa)
+        utoa = context.object_space.get_or_create_function(:utoa)
         b = putint_function.body
         b.mov( moved_int ,  int ) #move arg up
         #b.a       buffer  => int          # string to write to

lib/crystal.rb

@@ -4,6 +4,6 @@ require "elf/object_writer"
 require 'parser/crystal'
 require 'parser/transform'
 require "vm/register_machine"
-require "vm/program"
+require "vm/boot_space"
 require "stream_reader"
 require "core/kernel"

lib/elf/object_writer.rb

@@ -8,7 +8,7 @@ module Elf
   class ObjectWriter
     def initialize(program , target)
       @object = Elf::ObjectFile.new(target)
-      @program = program
+      @object_space = program
       sym_strtab = Elf::StringTableSection.new(".strtab")
       @object.add_section sym_strtab
       @symbol_table = Elf::SymbolTableSection.new(".symtab", sym_strtab)

lib/vm/boot_class.rb

@@ -0,0 +1,5 @@
+
+module Vm
+  class BootClass
+  end
+end

lib/vm/boot_space.rb

@@ -5,8 +5,8 @@ require "arm/arm_machine"
 require "core/kernel"
 
 module Vm
-  # A Program represents an executable that we want to build
-  # it has a list of functions and (global) objects
+  # The BootSpace is contains all objects for a program. In functional terms it is a program, but on oo
+  # it is a collection of objects, some of which are data, some classes, some functions
   
   # The main entry is a function called (of all things) "main", This _must be supplied by the compling
   # There is a start and exit block that call main, which receives an array of strings
@@ -18,7 +18,7 @@ module Vm
   
   # throwing in a context for unspecified use (well one is to pass the programm/globals around)
    
-  class Program < Code
+  class BootSpace < Code
     
     # Initialize with a string for cpu. Naming conventions are: for Machine XXX there exists a module XXX
     #  with a XXXMachine in it that derives from Vm::RegisterMachine
@@ -44,6 +44,7 @@ module Vm
     
     def add_object o
       return if @objects.include? o
+      raise "must be derived from Code #{o.inspect}" unless o.is_a? Code
       @objects << o # TODO check type , no basic values allowed (must be wrapped)
     end
     

lib/vm/context.rb

@@ -1,14 +1,14 @@
 require "support/hash_attributes"
 module Vm
   
-  #currently just holding the program in here so we can have global access
+  #currently just holding the object_space in here so we can have global access
   class Context
     # Make hash attributes to object attributes
     include Support::HashAttributes
     
-    def initialize program
+    def initialize object_space
       @attributes = {}
-      @attributes[:program] = program
+      @attributes[:object_space] = object_space
     end
     attr_reader :attributes
   end

test/arm/test_small_program.rb

@@ -9,12 +9,12 @@ require_relative 'helper'
 class TestSmallProg < MiniTest::Test
   # need a code generator, for arm 
   def setup
-    @program = Vm::Program.new "Arm"
+    @object_space = Vm::BootSpace.new "Arm"
   end
 
   def test_loop
     r0 = Vm::Integer.new(0)
-    m = @program.main.scope binding
+    m = @object_space.main.scope binding
     m.r0 = 5                #1
 
     s = m.new_block("loop").scope binding
@@ -26,13 +26,13 @@ class TestSmallProg < MiniTest::Test
 
   def test_hello
     hello = Vm::StringConstant.new "Hello Raisa\n"
-    @program.add_object hello
+    @object_space.add_object hello
     # these are only here because it's a test program, usually all coding happens with values
     r0 = Vm::Integer.new(0)
     r1 = Vm::Integer.new(1)
     r2 = Vm::Integer.new(2)
     r7 = Vm::Integer.new(7)
-    b = @program.main.scope binding
+    b = @object_space.main.scope binding
     b.r7 = 4     # 4 == write
     b.r0 = 1    # stdout
     b.r1 = hello  # address of "hello Raisa"
@@ -46,20 +46,20 @@ class TestSmallProg < MiniTest::Test
   #  not my hand off course, found in the net from a basic introduction
   def test_fibo
     int = Vm::Integer.new(1) 
-    fibo  = @program.get_or_create_function(:fibo)
-    main = @program.main.scope binding
+    fibo  = @object_space.get_or_create_function(:fibo)
+    main = @object_space.main.scope binding
     main.int = 10
     ret = main.call( fibo )
     main.mov( :r1 , :r7 )
-    putint = @program.get_or_create_function(:putint)
-    @program.main.call( putint )
+    putint = @object_space.get_or_create_function(:putint)
+    @object_space.main.call( putint )
     @should = [0x0,0xb0,0xa0,0xe3,0xa,0x10,0xa0,0xe3,0x4,0x0,0x0,0xeb,0x7,0x10,0xa0,0xe1,0x22,0x0,0x0,0xeb,0x1,0x70,0xa0,0xe3,0x0,0x0,0x0,0xef,0x0,0x70,0xa0,0xe1,0x0,0x40,0x2d,0xe9,0x1,0x0,0x51,0xe3,0x1,0x70,0xa0,0xd1,0xe,0xf0,0xa0,0xd1,0x1c,0x40,0x2d,0xe9,0x1,0x30,0xa0,0xe3,0x0,0x40,0xa0,0xe3,0x2,0x20,0x41,0xe2,0x4,0x30,0x83,0xe0,0x4,0x40,0x43,0xe0,0x1,0x20,0x52,0xe2,0xfb,0xff,0xff,0x5a,0x3,0x70,0xa0,0xe1,0x1c,0x80,0xbd,0xe8,0x0,0x80,0xbd,0xe8,0x0,0x40,0x2d,0xe9,0xa,0x30,0x42,0xe2,0x22,0x21,0x42,0xe0,0x22,0x22,0x82,0xe0,0x22,0x24,0x82,0xe0,0x22,0x28,0x82,0xe0,0xa2,0x21,0xa0,0xe1,0x2,0x41,0x82,0xe0,0x84,0x30,0x53,0xe0,0x1,0x20,0x82,0x52,0xa,0x30,0x83,0x42,0x30,0x30,0x83,0xe2,0x0,0x30,0xc1,0xe5,0x1,0x10,0x41,0xe2,0x0,0x0,0x52,0xe3,0xef,0xff,0xff,0x1b,0x0,0x80,0xbd,0xe8,0x0,0x40,0x2d,0xe9,0x1,0x20,0xa0,0xe1,0x20,0x10,0x8f,0xe2,0x9,0x10,0x81,0xe2,0xe9,0xff,0xff,0xeb,0x14,0x10,0x8f,0xe2,0xc,0x20,0xa0,0xe3,0x1,0x0,0xa0,0xe3,0x4,0x70,0xa0,0xe3,0x0,0x0,0x0,0xef,0x0,0x70,0xa0,0xe1,0x0,0x80,0xbd,0xe8,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20]
     write "fibo"
   end
 
   #helper to write the file
   def write name
-    writer = Elf::ObjectWriter.new(@program , Elf::Constants::TARGET_ARM)
+    writer = Elf::ObjectWriter.new(@object_space , Elf::Constants::TARGET_ARM)
     assembly = writer.text
     # use this for getting the bytes to compare to :  
     #puts assembly

test/fragments/helper.rb

@@ -13,7 +13,7 @@ require 'parslet/convenience'
 module Fragments
   # need a code generator, for arm 
   def setup
-    @program = Vm::Program.new "Arm"
+    @object_space = Vm::BootSpace.new "Arm"
   end
 
   def parse 
@@ -24,9 +24,9 @@ module Fragments
     # and the last is wrapped as a main
     parts.each_with_index do |part,index|
       if index == (parts.length - 1)
-        expr    = part.compile( @program.context , @program.main )
+        expr    = part.compile( @object_space.context , @object_space.main )
       else
-        expr    = part.compile( @program.context ,  nil )
+        expr    = part.compile( @object_space.context ,  nil )
         raise "should be function definition for now" unless expr.is_a? Vm::Function
       end
     end
@@ -34,7 +34,7 @@ module Fragments
 
   # helper to write the file
   def write name
-    writer = Elf::ObjectWriter.new(@program , Elf::Constants::TARGET_ARM)
+    writer = Elf::ObjectWriter.new(@object_space , Elf::Constants::TARGET_ARM)
     assembly = writer.text
     # use this for getting the bytes to compare to :  
     #puts assembly

test/fragments/test_class.rb

@@ -0,0 +1,34 @@
+require_relative 'helper'
+
+class TestClass < MiniTest::Test
+  include Fragments
+
+  def test_base_class
+    @string_input = <<HERE
+class BaseObject
+      def _set_instance_variable(name , value)
+        4
+      end
+  
+      def _get_instance_variable( name )
+        4
+      end
+
+      def _get_singleton_method(name )
+        4
+      end
+      def _add_singleton_method(method)
+        4
+      end
+      def initialize()
+        4
+      end
+end
+HERE
+    @should = [0x0,0xb0,0xa0,0xe3,0x2a,0x10,0xa0,0xe3,0x13,0x0,0x0,0xeb,0x1,0x70,0xa0,0xe3,0x0,0x0,0x0,0xef,0x0,0x70,0xa0,0xe1,0x0,0x40,0x2d,0xe9,0xa,0x30,0x42,0xe2,0x22,0x21,0x42,0xe0,0x22,0x22,0x82,0xe0,0x22,0x24,0x82,0xe0,0x22,0x28,0x82,0xe0,0xa2,0x21,0xa0,0xe1,0x2,0x41,0x82,0xe0,0x84,0x30,0x53,0xe0,0x1,0x20,0x82,0x52,0xa,0x30,0x83,0x42,0x30,0x30,0x83,0xe2,0x0,0x30,0xc1,0xe5,0x1,0x10,0x41,0xe2,0x0,0x0,0x52,0xe3,0xef,0xff,0xff,0x1b,0x0,0x80,0xbd,0xe8,0x0,0x40,0x2d,0xe9,0x1,0x20,0xa0,0xe1,0x20,0x10,0x8f,0xe2,0x9,0x10,0x81,0xe2,0xe9,0xff,0xff,0xeb,0x14,0x10,0x8f,0xe2,0xc,0x20,0xa0,0xe3,0x1,0x0,0xa0,0xe3,0x4,0x70,0xa0,0xe3,0x0,0x0,0x0,0xef,0x0,0x70,0xa0,0xe1,0x0,0x80,0xbd,0xe8,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20]
+    @output = "        42  "
+    parse 
+    write "putint"
+  end
+end
+

test/test_runner.rb

@@ -20,7 +20,7 @@ class TestRunner < MiniTest::Test
   def execute file
     string = File.read(file)
     parser = Parser::Crystal.new
-    program = Vm::Program.new "Arm"
+    object_space = Vm::Program.new "Arm"
     syntax  = parser.parse_with_debug(string)
     assert syntax
     parts   = Parser::Transform.new.apply(syntax)