* GiNaC's class registrar (for class basic and all classes derived from it). */
/*
- * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#define __GINAC_REGISTRAR_H__
#include <string>
+#include <list>
+
+#include "class_info.h"
-#ifndef NO_NAMESPACE_GINAC
namespace GiNaC {
-#endif // ndef NO_NAMESPACE_GINAC
-class registered_class_info;
class ex;
class archive_node;
-class lst;
+template <template <class> class> class container;
+typedef container<std::list> lst;
-/** Unarchiving function (static member function of every GiNaC class). */
-typedef ex (*unarch_func)(const archive_node &n, const lst &sym_lst);
+/** Unarchiving function (static member function of every GiNaC class). */
+typedef ex (*unarch_func)(const archive_node &n, lst &sym_lst);
-/** Head of list of all registered_class_info structures. */
-extern registered_class_info *first_registered_class;
+/** This class stores information about a registered GiNaC class. */
+class registered_class_options {
+public:
+ registered_class_options(const char *n, const char *p, unsigned ti, unarch_func f)
+ : name(n), parent_name(p), tinfo_key(ti), unarchive(f) {}
-/** This structure stores information about a registered GiNaC class. */
-struct registered_class_info {
- registered_class_info(const char *n, const char *s, unsigned int k, unarch_func f)
- : name(n), super(s), tinfo_key(k), unarchive(f)
- {
- // Add structure to list
- next = first_registered_class;
- first_registered_class = this;
- }
+ const char *get_name() const { return name; }
+ const char *get_parent_name() const { return parent_name; }
+ unsigned get_id() const { return tinfo_key; }
+ unarch_func get_unarch_func() const { return unarchive; }
- registered_class_info *next; /**< Pointer to next registered_class_info in list. */
- const char *name; /**< Class name. */
- const char *super; /**< Name of superclass. */
- unsigned int tinfo_key; /**< TINFO_* key. */
- unarch_func unarchive; /**< Pointer to unarchiving function. */
+private:
+ const char *name; /**< Class name. */
+ const char *parent_name; /**< Name of superclass. */
+ unsigned tinfo_key; /**< TINFO_* key. */
+ unarch_func unarchive; /**< Pointer to unarchiving function. */
};
+typedef class_info<registered_class_options> registered_class_info;
-/** Macro for inclusion in the declaration of each registered class. */
-#define GINAC_DECLARE_REGISTERED_CLASS(classname, supername) \
+
+/** Primary macro for inclusion in the declaration of each registered class. */
+#define GINAC_DECLARE_REGISTERED_CLASS_NO_CTORS(classname, supername) \
public: \
typedef supername inherited; \
- static registered_class_info reg_info; \
- virtual const char *class_name(void) const; \
- classname(const archive_node &n, const lst &sym_lst); \
- virtual void archive(archive_node &n) const; \
- static ex unarchive(const archive_node &n, const lst &sym_lst); \
+ template <class isexaclass> friend bool is_exactly_a(const GiNaC::basic &obj); \
+private: \
+ static GiNaC::registered_class_info reg_info; \
+public: \
+ virtual const GiNaC::registered_class_info &get_class_info() const { return reg_info; } \
+ virtual const char *class_name() const { return reg_info.options.get_name(); } \
+ \
+ classname(const GiNaC::archive_node &n, GiNaC::lst &sym_lst); \
+ virtual void archive(GiNaC::archive_node &n) const; \
+ static GiNaC::ex unarchive(const GiNaC::archive_node &n, GiNaC::lst &sym_lst); \
+ \
+ class visitor { \
+ public: \
+ virtual void visit(const classname &) = 0; \
+ };
+
+/** Macro for inclusion in the declaration of each registered class.
+ * It declares some functions that are common to all classes derived
+ * from 'basic' as well as all required stuff for the GiNaC class
+ * registry (mainly needed for archiving). */
+#define GINAC_DECLARE_REGISTERED_CLASS(classname, supername) \
+ GINAC_DECLARE_REGISTERED_CLASS_NO_CTORS(classname, supername) \
+public: \
+ classname(); \
+ classname * duplicate() const { return new classname(*this); } \
+ \
+ void accept(GiNaC::visitor & v) const \
+ { \
+ if (visitor *p = dynamic_cast<visitor *>(&v)) \
+ p->visit(*this); \
+ else \
+ inherited::accept(v); \
+ } \
+protected: \
+ int compare_same_type(const GiNaC::basic & other) const; \
private:
/** Macro for inclusion in the implementation of each registered class. */
#define GINAC_IMPLEMENT_REGISTERED_CLASS(classname, supername) \
- registered_class_info classname::reg_info(#classname, #supername, TINFO_##classname, &classname::unarchive); \
- const char *classname::class_name(void) const {return reg_info.name;}
+ GiNaC::registered_class_info classname::reg_info = GiNaC::registered_class_info(GiNaC::registered_class_options(#classname, #supername, TINFO_##classname, &classname::unarchive));
+
+/** Macro for inclusion in the implementation of each registered class.
+ * Additional options can be specified. */
+#define GINAC_IMPLEMENT_REGISTERED_CLASS_OPT(classname, supername, options) \
+ GiNaC::registered_class_info classname::reg_info = GiNaC::registered_class_info(GiNaC::registered_class_options(#classname, #supername, TINFO_##classname, &classname::unarchive).options);
/** Find TINFO_* key by class name. */
-extern unsigned int find_tinfo_key(const std::string &class_name);
+extern unsigned find_tinfo_key(const std::string &class_name);
/** Find unarchiving function by class name. */
extern unarch_func find_unarch_func(const std::string &class_name);
-#ifndef NO_NAMESPACE_GINAC
} // namespace GiNaC
-#endif // ndef NO_NAMESPACE_GINAC
#endif // ndef __GINAC_REGISTRAR_H__
git://www.ginac.de / ginac.git / blobdiff