* GiNaC's class registrar (for class basic and all classes derived from it). */
/*
- * GiNaC Copyright (C) 1999-2006 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2008 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
#include <string>
#include <list>
#include <vector>
+#include <typeinfo>
#include "class_info.h"
#include "print.h"
template <template <class T, class = std::allocator<T> > class> class container;
typedef container<std::list> lst;
-/** Definitions for the tinfo mechanism. */
-typedef const void * tinfo_t;
-struct tinfo_static_t {};
-
-/** Unarchiving function (static member function of every GiNaC class). */
-typedef ex (*unarch_func)(const archive_node &n, lst &sym_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 represenation 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));
+ }
+};
+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, tinfo_t 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; }
- tinfo_t 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>
private:
const char *name; /**< Class name. */
const char *parent_name; /**< Name of superclass. */
- tinfo_t tinfo_key; /**< Type information 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 */
};
#define GINAC_DECLARE_REGISTERED_CLASS_NO_CTORS(classname, supername) \
public: \
typedef supername inherited; \
- static const GiNaC::tinfo_static_t tinfo_static; \
private: \
static GiNaC::registered_class_info reg_info; \
public: \
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; \
/** 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, &classname::tinfo_static, &classname::unarchive)); \
- const GiNaC::tinfo_static_t classname::tinfo_static = {};
+ 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, &classname::tinfo_static, &classname::unarchive).options); \
- const GiNaC::tinfo_static_t classname::tinfo_static = {};
+ GiNaC::registered_class_info classname::reg_info = GiNaC::registered_class_info(GiNaC::registered_class_options(#classname, #supername, typeid(classname)).options);
/** 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, &classname::tinfo_static, &classname::unarchive).options); \
- template<> const GiNaC::tinfo_static_t classname::tinfo_static = {};
-
-
-/** Find type information key by class name. */
-extern tinfo_t 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);
+ 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. */
git://www.ginac.de / ginac.git / blobdiff