extend type inference for dsl

and finally test it

test/risc/test_builder.rb

@@ -98,20 +98,4 @@ module Risc
       assert_equal :Space , op.left.type.class_name
     end
   end
-  class TestCompilerBuilder < MiniTest::Test
-
-    def setup
-      Parfait.boot!
-      Risc.boot!
-      @init = Parfait.object_space.get_init
-      @compiler = Risc::MethodCompiler.new( @init )
-      @builder  = @compiler.compiler_builder(@init)
-    end
-    def test_inserts_built
-      r1 = RegisterValue.new(:r1 , :Space)
-      @builder.build{ space << r1 }
-      assert_equal Transfer , @compiler.risc_instructions.next.class
-    end
-
-  end
 end

test/risc/test_builder1.rb

@@ -0,0 +1,20 @@
+require_relative "../helper"
+
+module Risc
+  class TestCompilerBuilder < MiniTest::Test
+
+    def setup
+      Parfait.boot!
+      Risc.boot!
+      @init = Parfait.object_space.get_init
+      @compiler = Risc::MethodCompiler.new( @init )
+      @builder  = @compiler.compiler_builder(@init)
+    end
+    def test_inserts_built
+      r1 = RegisterValue.new(:r1 , :Space)
+      @builder.build{ space << r1 }
+      assert_equal Transfer , @compiler.risc_instructions.next.class
+    end
+
+  end
+end

test/risc/test_builder2.rb

@@ -0,0 +1,39 @@
+require_relative "../helper"
+
+module Risc
+  class TestBuilderInfer < MiniTest::Test
+
+    def setup
+      Parfait.boot!
+      Risc.boot!
+      @init = Parfait.object_space.get_init
+      @compiler = Risc::MethodCompiler.new( @init )
+      @builder  = @compiler.compiler_builder(@init)
+    end
+    def test_list
+      assert_equal :List , @builder.infer_type(:list).class_name
+    end
+    def test_name
+      assert_equal :Word , @builder.infer_type(:name).class_name
+    end
+    def test_word
+      assert_equal :Word , @builder.infer_type(:word).class_name
+    end
+    def test_caller
+      assert_equal :Message , @builder.infer_type(:caller).class_name
+    end
+    def test_caller_reg
+      assert_equal :Message , @builder.infer_type(:caller_reg).class_name
+    end
+    def test_caller_obj
+      assert_equal :Message , @builder.infer_type(:caller_obj).class_name
+    end
+    def test_message
+      assert_equal :Message , @builder.infer_type(:message).class_name
+    end
+    def test_next_message
+      assert_equal :Message , @builder.infer_type(:next_message).class_name
+    end
+
+  end
+end