Changeset 15103 for lang/cplusplus/reflection

Timestamp:

07/03/08 16:13:48 (6 months ago)

Author:

kazuho

Message:

add getter()

Location:

lang/cplusplus/reflection/trunk

Files:

• memrebuild.hpp (modified) (1 diff)
• reflection.hpp (modified) (2 diffs)

lang/cplusplus/reflection/trunk/memrebuild.hpp

@@ -119 +119 @@
 
 #undef MEM_REBUILD_
-
-  template <typename T, typename TI> T core(const void *p, TI t)
+  
+  template <typename T, typename TI>
+  typename builder<T>::func_t get_instantiator(TI t)
   {
-    typedef mem_rebuild_ns::builder_map<T> map;
-    for (typename map::const_iterator i = map::m.begin();
-         i != map::m.end();
+    for (typename builder_map<T>::const_iterator i = builder_map<T>::m.begin();
+         i != builder_map<T>::m.end();
          ++i) {
       typename mem_rebuild_ns::builder<T>::func_t instantiate;
       if ((instantiate = (*i)->get(t)) != NULL)
-        return (*instantiate)(p);
+        return instantiate;
     }
     throw std::bad_cast();
+  }
+  
+  template <typename T, typename TI> T core(const void *p, TI t)
+  {
+    return (*get_instantiator<T, TI>(t))(p);
   }
 

lang/cplusplus/reflection/trunk/reflection.hpp

@@ -10 +10 @@
 namespace reflection {
   
+  template <class T, typename Vt> struct member_getter {
+    Vt (*f)(const void*);
+    char T::*p;
+    member_getter(Vt (*_f)(const void*), char T::*_p) : f(_f), p(_p) {}
+    T operator()(const T &obj) {
+      return (*f)(obj.*p);
+    }
+  };
+  
   template <class T> struct member : public mem_rebuild_ns::type_is_t {
     virtual ~member() {}
@@ -19 +28 @@
     template <typename Vt> Vt get(const T &obj) const {
       return mem_rebuild<Vt>(&(obj.*ptr()), this);
+    }
+    template <typename Vt> member_getter<T, Vt> getter() const {
+      return member_getter<T, Vt>(mem_rebuild_ns::get_instantiator<Vt>(this),
+                                  ptr());
     }
     template <typename Vt> void set(T &obj, const Vt &v) const {