Add test for automatic casting down in inheritance

include/chaiscript/dispatchkit/dynamic_cast_conversion.hpp

@@ -242,8 +242,6 @@ namespace chaiscript
   /// chai.add(chaiscript::base_class<Base, Derived>());
   /// \endcode
   /// 
-  /// \todo Move share static type registration code into a mechanism that allows it to be properly
-  ///       shared by all modules
   template<typename Base, typename Derived>
     Dynamic_Cast_Conversion base_class()
     {

src/test_module.cpp

@@ -35,11 +35,17 @@ class TestDerivedType : public TestBaseType
   public:
     virtual ~TestDerivedType() {}
     virtual int func() { return 1; }
+    int derived_only_func() { return 19; }
 
   private:
     TestDerivedType &operator=(const TestDerivedType &);
 };
 
+boost::shared_ptr<TestBaseType> derived_type_factory()
+{
+  return boost::shared_ptr<TestBaseType>(new TestDerivedType());
+}
+
 std::string hello_world()
 {
   return "Hello World";
@@ -81,6 +87,10 @@ CHAISCRIPT_MODULE_EXPORT  chaiscript::ModulePtr create_chaiscript_module_test_mo
 
   m->add(chaiscript::base_class<TestBaseType, TestDerivedType>());
 
+  m->add(chaiscript::fun(&TestDerivedType::derived_only_func), "derived_only_func");
+
+  m->add(chaiscript::fun(&derived_type_factory), "derived_type_factory");
+
   m->add(chaiscript::fun(&TestBaseType::func), "func");
   m->add(chaiscript::fun(&TestBaseType::val), "val");
   m->add(chaiscript::fun(&TestBaseType::const_val), "const_val");

unittests/inheritance.chai

@@ -15,3 +15,12 @@ assert_equal(15, t.const_val);
 t.val = 23;
 assert_equal(23, t.val)
 
+// test_derived_factory returns a TestDerivedType contained
+// in a shared_ptr<TestBaseType>. This is testing our ability
+// to detect that and do the down casting for the user automatically
+// at runtime
+var d := derived_type_factory();
+
+assert_equal(t.derived_only_func(), 19);
+assert_equal(d.derived_only_func(), 19);
+