release: 1.0.14

[lilypond.git] / flower / include / virtual-methods.hh

diff --git a/flower/include/virtual-methods.hh b/flower/include/virtual-methods.hh
index ea81cbbc992fc8eb0ff9496e248de8e4d4a0825c..27557117e3c84fc2fe18934968ee38c6495863b7 100644 (file)
--- a/flower/include/virtual-methods.hh
+++ b/flower/include/virtual-methods.hh
@@ -1,47 +1,63 @@
 /*
-  virtual-methods.hh -- declare 
+  virtual-methods.hh -- declare macros for our do-it-yourself RTTI
 
   source file of the Flower Library
 
-  (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+  (c)  1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
 
 #ifndef VIRTUAL_METHODS_HH
 #define VIRTUAL_METHODS_HH
 
-/** a macro to declare the classes name as a static and virtual function.
+#include "stdlib.h"            // size_t
+
+/**  Declare the classes name as a static and virtual function.
   The static_name() can *not* be inlined (this might have the effect that 
-  s->name() != S::static_name(). Overlapping strings need not be merged in C++
+  s->name() != S::static_name (). Overlapping strings need not be merged in C++
  */
-#define NAME_MEMBERS() \
-static char const *static_name();\
-virtual bool is_type_b(const char *)const; \
-virtual char const *name() const{ return static_name(); } \
-int a_stupid_nonexistent_function_to_allow_the_semicolon_come_out()
+#define DECLARE_MY_RUNTIME_TYPEINFO    \
+static bool static_is_type_b (const char*s);\
+virtual bool is_type_b (const char *s) const { return static_is_type_b (s); } \
+virtual char const *name() const{ return static_name (); } \
+virtual size_t class_size () const { return static_class_size (); }\
+static size_t static_class_size (); \
+static char const *static_name()
 
 #define IMPLEMENT_STATIC_NAME(c)\
-    char const *c::static_name() { return #c; } 
+    char const *c::static_name() { return #c; } \
+    size_t c::static_class_size () { return sizeof (c); }
+
+
 
 #define VIRTUAL_COPY_CONS(T, R)\
   virtual R *clone() const { return  new T(*this); } \
   int  yet_another_stupid_function_to_allow_semicolon()
 
+
+#define DECLARE_VIRTUAL_COPY_CONS(T,R)\
+      virtual R *clone() const
+#define IMPLEMENT_VIRTUAL_COPY_CONS(T,R)\
+       R *T::clone() const { return  new T(*this); } \
+    
 #define IMPLEMENT_IS_TYPE_B(D)                                                            \
-  bool D::is_type_b(const char *s)     const                                      \
+    IMPLEMENT_STATIC_NAME(D)\
+  bool D::static_is_type_b (const char *s)                                        \
 {                                                                                 \
     return s == static_name();                                                    \
 }                                                                                 
                                                                                   
 #define IMPLEMENT_IS_TYPE_B1(D,B)                                                 \
-  bool D::is_type_b(const char *s)const                                                   \
+       IMPLEMENT_STATIC_NAME(D)\
+  bool D::static_is_type_b (const char *s)                                                \
 {                                                                                 \
-    return s == static_name() || B::is_type_b(s);                                 \
+    return s == static_name() || B::static_is_type_b (s);                                 \
 }                                                                                 
 #define IMPLEMENT_IS_TYPE_B2(D, BA, BB)                                                   \
-  bool D::is_type_b(const char *s)     const                                      \
+       IMPLEMENT_STATIC_NAME(D)\
+  bool D::static_is_type_b (const char *s)                                                \
 {                                                                                 \
-    return s == static_name() || BA::is_type_b(s) || BB::is_type_b(s); \
+    return s == static_name() || BA::static_is_type_b (s) || BB::static_is_type_b (s); \
 }
 
 #endif