]> www.ginac.de Git - ginac.git/blobdiff - ginac/registrar.h
Happy New Year!
[ginac.git] / ginac / registrar.h
index fd237fbcbfa92e1fd990f35882b253bb77cd8df2..c6cdc412aa55eba4eb22917f61da392ddc1d41aa 100644 (file)
@@ -3,7 +3,7 @@
  *  GiNaC's class registrar (for class basic and all classes derived from it). */
 
 /*
- *  GiNaC Copyright (C) 1999-2004 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2019 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
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#ifndef __GINAC_REGISTRAR_H__
-#define __GINAC_REGISTRAR_H__
-
-#include <string>
-#include <list>
-#include <vector>
+#ifndef GINAC_REGISTRAR_H
+#define GINAC_REGISTRAR_H
 
 #include "class_info.h"
 #include "print.h"
 
+#include <list>
+#include <string>
+#include <typeinfo>
+#include <vector>
+
 namespace GiNaC {
 
 class ex;
 class archive_node;
 
-template <template <class> class> class container;
+template <template <class T, class = std::allocator<T>> class> class container;
 typedef container<std::list> lst;
 
+/** To distinguish between different kinds of non-commutative objects */
+struct return_type_t
+{
+       /// to distinguish between non-commutative objects of different type.
+       std::type_info const* tinfo; 
+       /// to distinguish between non-commutative objects of the same type.
+       /// Think of gamma matrices with different representation labels.
+       unsigned rl;
+
+       /// Strict weak ordering (so one can put return_type_t's into
+       /// a STL container).
+       inline bool operator<(const return_type_t& other) const
+       {
+               if (tinfo->before(*other.tinfo))
+                       return true;
+               return rl < other.rl;
+       }
+       inline bool operator==(const return_type_t& other) const
+       {
+               if (*tinfo != *(other.tinfo))
+                       return false;
+               return rl == other.rl;
+       }
+       inline bool operator!=(const return_type_t& other) const
+       {
+               return ! (operator==(other));
+       }
+};
 
-/** Unarchiving function (static member function of every GiNaC class). */
-typedef ex (*unarch_func)(const archive_node &n, lst &sym_lst);
-
+template<typename T> inline return_type_t make_return_type_t(const unsigned rl = 0)
+{
+       return_type_t ret;
+       ret.rl = rl;
+       ret.tinfo = &typeid(T);
+       return ret;
+}
 
 /** 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) {}
+       registered_class_options(const char *n, const char *p, 
+                                const std::type_info& ti)
+        : name(n), parent_name(p), tinfo_key(&ti) { }
 
        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; }
+       std::type_info const* get_id() const { return tinfo_key; }
        const std::vector<print_functor> &get_print_dispatch_table() const { return print_dispatch_table; }
 
        template <class Ctx, class T, class C>
@@ -86,71 +119,76 @@ public:
 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. */
+       std::type_info const* tinfo_key;        /**< Type information key. */
        std::vector<print_functor> print_dispatch_table; /**< Method table for print() dispatch */
 };
 
 typedef class_info<registered_class_options> registered_class_info;
 
-
-/** Primary macro for inclusion in the declaration of each registered class. */
-#define GINAC_DECLARE_REGISTERED_CLASS_NO_CTORS(classname, supername) \
-public: \
-       typedef supername inherited; \
+/** Common part of GINAC_DECLARE_REGISTERED_CLASS_NO_CTORS and GINAC_DECLARE_REGISTERED_CLASS. */
+#define GINAC_DECLARE_REGISTERED_CLASS_COMMON(classname)       \
 private: \
        static GiNaC::registered_class_info reg_info; \
 public: \
        static GiNaC::registered_class_info &get_class_info_static() { return reg_info; } \
-       virtual const GiNaC::registered_class_info &get_class_info() const { return classname::get_class_info_static(); } \
-       virtual GiNaC::registered_class_info &get_class_info() { return classname::get_class_info_static(); } \
-       virtual const char *class_name() const { return classname::get_class_info_static().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; \
+               virtual ~visitor() {}; \
        };
 
+/** Primary macro for inclusion in the declaration of each registered class. */
+#define GINAC_DECLARE_REGISTERED_CLASS_NO_CTORS(classname, supername) \
+       GINAC_DECLARE_REGISTERED_CLASS_COMMON(classname) \
+       typedef supername inherited; \
+       virtual const GiNaC::registered_class_info &get_class_info() const { return classname::get_class_info_static(); } \
+       virtual GiNaC::registered_class_info &get_class_info() { return classname::get_class_info_static(); } \
+       virtual const char *class_name() const { return classname::get_class_info_static().options.get_name(); } \
+private:
+
 /** 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: \
+       GINAC_DECLARE_REGISTERED_CLASS_COMMON(classname) \
+       template<class B, typename... Args> friend B & dynallocate(Args &&... args); \
+       typedef supername inherited; \
        classname(); \
-       virtual classname * duplicate() const { return new classname(*this); } \
+       classname * duplicate() const override { \
+               classname * bp = new classname(*this); \
+               bp->setflag(GiNaC::status_flags::dynallocated); \
+               return bp; \
+       } \
        \
-       virtual void accept(GiNaC::visitor & v) const \
+       void accept(GiNaC::visitor & v) const override \
        { \
                if (visitor *p = dynamic_cast<visitor *>(&v)) \
                        p->visit(*this); \
                else \
                        inherited::accept(v); \
        } \
+       const GiNaC::registered_class_info &get_class_info() const override { return classname::get_class_info_static(); } \
+       GiNaC::registered_class_info &get_class_info() override { return classname::get_class_info_static(); } \
+       const char *class_name() const override { return classname::get_class_info_static().options.get_name(); } \
 protected: \
-       virtual int compare_same_type(const GiNaC::basic & other) const; \
+       int compare_same_type(const GiNaC::basic & other) const override; \
 private:
 
+
 /** Macro for inclusion in the implementation of each registered class. */
 #define GINAC_IMPLEMENT_REGISTERED_CLASS(classname, supername) \
-       GiNaC::registered_class_info classname::reg_info = GiNaC::registered_class_info(GiNaC::registered_class_options(#classname, #supername, TINFO_##classname, &classname::unarchive));
+       GiNaC::registered_class_info classname::reg_info = GiNaC::registered_class_info(GiNaC::registered_class_options(#classname, #supername, typeid(classname))); 
 
 /** 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 find_tinfo_key(const std::string &class_name);
+       GiNaC::registered_class_info classname::reg_info = GiNaC::registered_class_info(GiNaC::registered_class_options(#classname, #supername, typeid(classname)).options);
 
-/** Find unarchiving function by class name. */
-extern unarch_func find_unarch_func(const std::string &class_name);
+/** Macro for inclusion in the implementation of each registered class.
+ *  Additional options can be specified. */
+#define GINAC_IMPLEMENT_REGISTERED_CLASS_OPT_T(classname, supername, options) \
+       GiNaC::registered_class_info classname::reg_info = GiNaC::registered_class_info(GiNaC::registered_class_options(#classname, #supername, typeid(classname)).options);
 
 
 /** Add or replace a print method. */
@@ -170,4 +208,4 @@ extern void set_print_func(void (T::*f)(const C &, unsigned))
 
 } // namespace GiNaC
 
-#endif // ndef __GINAC_REGISTRAR_H__
+#endif // ndef GINAC_REGISTRAR_H