* GiNaC's class registrar (for class basic and all classes derived from it). */
/*
- * GiNaC Copyright (C) 1999-2003 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
*
* 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__
#include <string>
#include <list>
+#include <vector>
#include "class_info.h"
+#include "print.h"
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 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;
+}
+
+/** 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);
/** 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)
+ 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) {}
const char *get_name() const { return name; }
const char *get_parent_name() const { return parent_name; }
- unsigned get_id() const { return tinfo_key; }
+ tinfo_t get_id() const { return tinfo_key; }
unarch_func get_unarch_func() const { return unarchive; }
+ const std::vector<print_functor> &get_print_dispatch_table() const { return print_dispatch_table; }
+
+ template <class Ctx, class T, class C>
+ registered_class_options & print_func(void f(const T &, const C & c, unsigned))
+ {
+ set_print_func(Ctx::get_class_info_static().options.get_id(), f);
+ return *this;
+ }
+
+ template <class Ctx, class T, class C>
+ registered_class_options & print_func(void (T::*f)(const C &, unsigned))
+ {
+ set_print_func(Ctx::get_class_info_static().options.get_id(), f);
+ return *this;
+ }
+
+ template <class Ctx>
+ registered_class_options & print_func(const print_functor & f)
+ {
+ set_print_func(Ctx::get_class_info_static().options.get_id(), f);
+ return *this;
+ }
+
+ void set_print_func(unsigned id, const print_functor & f)
+ {
+ if (id >= print_dispatch_table.size())
+ print_dispatch_table.resize(id + 1);
+ print_dispatch_table[id] = f;
+ }
private:
const char *name; /**< Class name. */
const char *parent_name; /**< Name of superclass. */
- unsigned tinfo_key; /**< TINFO_* key. */
+ tinfo_t tinfo_key; /**< Type information key. */
unarch_func unarchive; /**< Pointer to unarchiving function. */
+ std::vector<print_functor> print_dispatch_table; /**< Method table for print() dispatch */
};
typedef class_info<registered_class_options> registered_class_info;
#define GINAC_DECLARE_REGISTERED_CLASS_NO_CTORS(classname, supername) \
public: \
typedef supername inherited; \
- template <class isexaclass> friend bool is_exactly_a(const GiNaC::basic &obj); \
+ 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 reg_info; } \
- virtual const char *class_name() const { return reg_info.options.get_name(); } \
+ 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; \
class visitor { \
public: \
virtual void visit(const classname &) = 0; \
+ virtual ~visitor() {}; \
};
/** Macro for inclusion in the declaration of each registered class.
GINAC_DECLARE_REGISTERED_CLASS_NO_CTORS(classname, supername) \
public: \
classname(); \
- classname * duplicate() const { return new classname(*this); } \
+ virtual classname * duplicate() const { return new classname(*this); } \
\
- void accept(GiNaC::visitor & v) const \
+ virtual void accept(GiNaC::visitor & v) const \
{ \
if (visitor *p = dynamic_cast<visitor *>(&v)) \
p->visit(*this); \
inherited::accept(v); \
} \
protected: \
- int compare_same_type(const GiNaC::basic & other) const; \
+ virtual 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) \
- 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, &classname::tinfo_static, &classname::unarchive)); \
+ const GiNaC::tinfo_static_t classname::tinfo_static = {};
/** 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);
+ 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 = {};
+
+/** 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 TINFO_* key by class name. */
-extern unsigned find_tinfo_key(const std::string &class_name);
+/** 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);
+/** Add or replace a print method. */
+template <class Alg, class Ctx, class T, class C>
+extern void set_print_func(void f(const T &, const C & c, unsigned))
+{
+ Alg::get_class_info_static().options.set_print_func(Ctx::get_class_info_static().options.get_id(), f);
+}
+
+/** Add or replace a print method. */
+template <class Alg, class Ctx, class T, class C>
+extern void set_print_func(void (T::*f)(const C &, unsigned))
+{
+ Alg::get_class_info_static().options.set_print_func(Ctx::get_class_info_static().options.get_id(), f);
+}
+
+
} // namespace GiNaC
#endif // ndef __GINAC_REGISTRAR_H__
git://www.ginac.de / ginac.git / blobdiff