stashing

lib/mom/callable_compiler.rb

@@ -0,0 +1,74 @@
+module Mom
+
+  # CallableCompiler is used to generate Mom instructions.
+
+  # - mom_instructions: The sequence of mom level instructions that vool was compiled to
+
+  class CallableCompiler
+
+    def initialize( callable )
+      @callable = callable
+      @constants = []
+      @block_compilers = []
+      @mom_instructions = Risc.label(source_name, source_name)
+      @current = start = @risc_instructions
+      add_code Risc.label( source_name, "return_label")
+      Mom::ReturnSequence.new.to_risc(self)
+      add_code Risc.label( source_name, "unreachable")
+      @current = start
+    end
+    attr_reader :risc_instructions , :constants , :block_compilers , :callable , :current
+
+    def return_label
+      @risc_instructions.each do |ins|
+        next unless ins.is_a?(Label)
+        return ins if ins.name == "return_label"
+      end
+    end
+
+    # convert the given mom instruction to_risc and then add it (see add_code)
+    # continue down the instruction chain unti depleted
+    # (adding moves the insertion point so the whole mom chain is added as a risc chain)
+    def add_mom( instruction )
+      while( instruction )
+        raise "whats this a #{instruction}" unless instruction.is_a?(Mom::Instruction)
+        #puts "adding mom #{instruction.to_s}:#{instruction.next.to_s}"
+        instruction.to_risc( self )
+        reset_regs
+        #puts "adding risc #{risc.to_s}:#{risc.next.to_s}"
+        instruction = instruction.next
+      end
+    end
+
+    # add a constant (which get created during compilation and need to be linked)
+    def add_constant(const)
+      raise "Must be Parfait #{const}" unless const.is_a?(Parfait::Object)
+      @constants << const
+    end
+
+    # add a risc instruction after the current (insertion point)
+    # the added instruction will become the new insertion point
+    def add_code( instruction )
+      raise "Not an instruction:#{instruction.to_s}:#{instruction.class.name}" unless  instruction.is_a?(Risc::Instruction)
+      raise instruction.to_s if( instruction.class.name.split("::").first == "Arm")
+      new_current = instruction.last #after insertion this point is lost
+      @current.insert(instruction) #insert after current
+      @current = new_current
+      self
+    end
+
+    # return the frame type, ie the blocks frame type
+    def frame_type
+      @callable.frame_type
+    end
+    # return the frame type, ie the blocks arguments type
+    def arg_type
+      @callable.arguments_type
+    end
+    # return the frame type, ie the blocks self_type
+    def receiver_type
+      @callable.self_type
+    end
+
+  end
+end

lib/mom/mom.rb

@@ -16,3 +16,4 @@ end
 
 require_relative "instruction/instruction.rb"
 require_relative "mom_compiler"
+require_relative "callable_compiler"

lib/parfait/vool_method.rb

@@ -14,7 +14,7 @@ module Parfait
 
     attr :type, :name , :args_type , :frame_type
     attr_reader :source
-    
+
     def initialize(name , args_type , frame_type , source )
       self.name = name
       self.args_type = args_type
@@ -34,7 +34,7 @@ module Parfait
 
     def compiler_for(self_type)
       callable_method = create_callable_method(self_type)
-      compiler = Risc::MethodCompiler.new( callable_method )
+      compiler = Mom::CallableCompiler.new( callable_method )
       head = @source.to_mom( compiler )
       compiler.add_mom(head)
       compiler

test/mom/test_callable_compiler.rb

@@ -0,0 +1,40 @@
+require_relative "helper"
+
+module Mom
+  class TestMomCompiler < MiniTest::Test
+    include MomCompile
+
+    def setup
+      Parfait.boot!(Parfait.default_test_options)
+      @comp = compile_mom( "class Test ; def main(); return 'Hi'; end; end;")
+    end
+
+    def test_class
+      assert_equal MomCompiler , @comp.class
+    end
+    def test_compilers
+      assert_equal 23 , @comp.compilers.length
+    end
+    def test_boot_compilers
+      assert_equal 22 , @comp.boot_compilers.length
+    end
+    def test_compilers_bare
+      assert_equal 22 , MomCompiler.new.compilers.length
+    end
+    def test_returns_constants
+      assert_equal Array , @comp.constants.class
+    end
+    def test_has_constant
+      assert_equal  "Hi" , @comp.constants[1].to_string
+    end
+    def test_has_translate
+      assert @comp.translate(:interpreter)
+    end
+    def test_append_class
+      assert_equal MomCompiler,  (@comp.append @comp).class
+    end
+    def test_append_length
+      assert_equal 2 ,  @comp.append(@comp).method_compilers.length
+    end
+  end
+end

test/parfait/test_vool_method.rb

@@ -0,0 +1,16 @@
+require_relative "helper"
+
+module Vool
+  class TestVoolMethod < MiniTest::Test
+    include MomCompile
+
+    def setup
+      Parfait.boot!(Parfait.default_test_options)
+      @ins = compile_first_method( "@a = 5")
+    end
+
+    def test_setup
+
+    end
+  end
+end

test/vool/test_vool_method.rb

@@ -0,0 +1,16 @@
+require_relative "helper"
+
+module Vool
+  class TestVoolMethod < MiniTest::Test
+    include MomCompile
+
+    def setup
+      Parfait.boot!(Parfait.default_test_options)
+      @ins = compile_first_method( "@a = 5")
+    end
+
+    def test_setup
+
+    end
+  end
+end