Changeset 15103 for lang/cplusplus/reflection/trunk/reflection.hpp

Timestamp:

07/03/08 16:13:48 (5 months ago)

Author:

kazuho

Message:

add getter()

Files:

• lang/cplusplus/reflection/trunk/reflection.hpp (modified) (2 diffs)

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 {