Allow "Module" to contain chaiscript snippets to be executed when a module is initialized. Update dynamic_object to use the new feature to clean up some of the _prelude.hpp

include/chaiscript/dispatchkit/bootstrap.hpp

@@ -693,6 +693,7 @@ namespace chaiscript
         m->add(fun(&Dynamic_Object::get_type_name), "get_type_name");
         m->add(fun(&Dynamic_Object::get_attrs), "get_attrs");
         m->add(fun(&Dynamic_Object::get_attr), "get_attr");
+        m->eval("def Dynamic_Object::clone() { var new_o := Dynamic_Object(this.get_type_name()); for_each(this.get_attrs(), bind(fun(new_o, x) { new_o.get_attr(x.first) = x.second; }, new_o, _) ); return new_o; }");
 
 
         basic_constructors<bool>("bool", m);

include/chaiscript/dispatchkit/dispatchkit.hpp

@@ -42,16 +42,26 @@ namespace chaiscript
         return *this;
       }
 
-      template<typename T>
+      //Add a bit of chaiscript to eval during module implementation
-        void apply(T &t) const
+      Module &eval(const std::string &str)
+      {
+        m_evals.push_back(str);
+        return *this;
+      }
+
+
+      template<typename Eval, typename Engine>
+        void apply(Eval &t_eval, Engine &t_engine) const
         {
-          apply(m_typeinfos.begin(), m_typeinfos.end(), t);
+          apply(m_typeinfos.begin(), m_typeinfos.end(), t_engine);
-          apply(m_funcs.begin(), m_funcs.end(), t);
+          apply(m_funcs.begin(), m_funcs.end(), t_engine);
+          apply_eval(m_evals.begin(), m_evals.end(), t_eval);
         }
 
     private:
       std::vector<std::pair<Type_Info, std::string> > m_typeinfos;
       std::vector<std::pair<Proxy_Function, std::string> > m_funcs;
+      std::vector<std::string> m_evals;
 
       template<typename T, typename InItr>
         void apply(InItr begin, InItr end, T &t) const
@@ -62,6 +72,18 @@ namespace chaiscript
             ++begin;
           }
         }
+
+      template<typename T, typename InItr>
+        void apply_eval(InItr begin, InItr end, T &t) const
+        {
+          while (begin != end)
+          {
+            t.eval(*begin);
+            ++begin;
+          }
+        }
+
+
   };
 
   typedef boost::shared_ptr<Module> ModulePtr;
@@ -180,14 +202,6 @@ namespace chaiscript
         return add_function(f, name);
       }
 
-      /**
-       * Add a module's worth of registrations to the system
-       */
-      void add(const ModulePtr &m)
-      {
-        m->apply(*this);
-      }
-
       /**
        * Set the value of an object, by name. If the object
        * is not available in the current scope it is created

include/chaiscript/dispatchkit/dynamic_object.hpp

@@ -52,7 +52,7 @@ namespace chaiscript
     {
       try {
         const Dynamic_Object &d = boxed_cast<const Dynamic_Object &>(bvs[0]);
-        return d.get_type_name() == name;
+        return name == "Dynamic_Object" || d.get_type_name() == name;
       } catch (const std::bad_cast &) {
         if (ti)
         {

include/chaiscript/language/chaiscript_engine.hpp

@@ -292,8 +292,7 @@ namespace chaiscript
          */
         ChaiScript_System &add(const ModulePtr &p)
         {
-            engine.add(p);
+            p->apply(*this, this->get_eval_engine());
-
             return *this;
         }
 
@@ -431,7 +430,7 @@ namespace chaiscript
             engine.add_reserved_word("_");
 
 
-            engine.add(Bootstrap::bootstrap());
+            add(Bootstrap::bootstrap());
 
             engine.add(fun(boost::function<void ()>(boost::bind(&dump_system, boost::ref(engine)))), "dump_system");
             engine.add(fun(boost::function<void (Boxed_Value)>(boost::bind(&dump_object, _1, boost::ref(engine)))), "dump_object");
@@ -454,10 +453,10 @@ namespace chaiscript
                         &ChaiScript_System<Eval_Engine>::load_module), boost::ref(*this), _1, _2))),
                 "load_module");
 
-            engine.add(vector_type<std::vector<Boxed_Value> >("Vector"));
+            add(vector_type<std::vector<Boxed_Value> >("Vector"));
-            engine.add(string_type<std::string>("string"));
+            add(string_type<std::string>("string"));
-            engine.add(map_type<std::map<std::string, Boxed_Value> >("Map"));
+            add(map_type<std::map<std::string, Boxed_Value> >("Map"));
-            engine.add(pair_type<std::pair<Boxed_Value, Boxed_Value > >("Pair"));
+            add(pair_type<std::pair<Boxed_Value, Boxed_Value > >("Pair"));
 
             engine.add(fun(boost::function<void (const std::string &)>(boost::bind(&ChaiScript_System<Eval_Engine>::use, this, _1))), "use");
 

include/chaiscript/language/chaiscript_prelude.hpp

@@ -13,7 +13,6 @@
 
 #define chaiscript_prelude CODE_STRING(\
 def new(x) { eval(type_name(x))(); } \n\
-def clone(o) : is_type(o, "Dynamic_Object") { var new_o := Dynamic_Object(o.get_type_name()); for_each(o.get_attrs(), bind(fun(new_o, x) { new_o.get_attr(x.first) = x.second; }, new_o, _) ); return new_o; } \n\
 def clone(x) : function_exists(type_name(x)) && call_exists(eval(type_name(x)), x)  { eval(type_name(x))(x); } \n\
 # to_string for Pair()\n\
 def to_string(x) : call_exists(first, x) && call_exists(second, x) { \n\