/*------------------------------------------------------------\
|                                                             |
| Tool    :                  systemcass                       |
|                                                             |
| File    :                 sc_object.cc                      |
|                                                             |
| Author  :                 Buchmann Richard                  |
|                                                             |
| Date    :                   09_07_2004                      |
|                                                             |
\------------------------------------------------------------*/

/* 
 * This file is part of the Disydent Project
 * Copyright (C) Laboratoire LIP6 - Département ASIM
 * Universite Pierre et Marie Curie
 * 
 * Home page          : http://www-asim.lip6.fr/disydent
 * E-mail             : mailto:richard.buchmann@lip6.fr
 * 
 * This library is free software; you  can redistribute it and/or modify it
 * under the terms  of the GNU Library General Public  License as published
 * by the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 * 
 * Disydent is distributed  in the hope  that it  will be
 * useful, but WITHOUT  ANY WARRANTY; without even the  implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
 * Public License for more details.
 * 
 * You should have received a copy  of the GNU General Public License along
 * with the GNU C Library; see the  file COPYING. If not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */


#include <stdio.h>
#include <string>
#include <map>

#include "assert.h"
#include "sc_object.h"
//#include "sc_port.h"
#include "internal.h"
#include "sc_signal.h"
#include "module_hierarchy.h"

using namespace std;

namespace sc_core {

static void
gen_name (const char *prefix, string &s)
{
  s = prefix;
  static int i = 0;
  char ic[10];
  sprintf (ic,"%d",i++);
  s += ic;
}
// ----------------------------------------------------------------------------
static void
build_complete_name (const char *name, string &out)
{
	out = "";
  module_name_stack_t::const_iterator i;
  for (i = module_name_stack.begin (); i != module_name_stack.end (); ++i) {
    const string &module_name = *i;
    out += (module_name + ".");
//    out += ".";
  }
//  ASSERT(name != NULL);
  if (name)
    out += name;
  else
    out[out.length ()-1] = '\0';
#if 0
  cerr << "complete_name = " << out << endl;
#endif
}

#if 0
static
void
build_full_name_r (string &out, const sc_object *obj)
{
  if (obj == NULL)
  {
    out = "";
  } else {
    const sc_object *parent = obj->get_parent_object ();
    build_full_name_r (out, parent);
    out += obj->basename ();
    out += ".";
  }
}

static
void
build_full_name (string &out, const sc_object &obj)
{
  const sc_object *parent = obj.get_parent_object ();
  build_full_name_r (out, parent);
  out += obj.basename ();
  cerr << "build_full_name = " << out << endl;
}
#endif

typedef std::map<const sc_object* const,string> object2name_t;
static object2name_t object2basename;
static object2name_t object2fullname;

struct object_infos_t {
	const char *kind_string;
};
typedef std::map<const sc_object* const,object_infos_t> object2infos_t;
static object2infos_t object2infos;

// We initialize SC_BIND_PROXY_NIL there to make sure object2infos,
// object2fullname, and object2basename are already initialized.
// SC_BIND_PROXY_NIL should be declared into sc_module.cc but it prevents us
// to force the initialization order.
const char *SC_BIND_PROXY_NIL_string = "SC_BIND_PROXY_NIL";
sc_bind_proxy SC_BIND_PROXY_NIL (SC_BIND_PROXY_NIL_string,NULL);

// ----------------------------------------------------------------------------
//  FUNCTION : sc_gen_unique_name
//                                               
// ----------------------------------------------------------------------------

const char *
sc_gen_unique_name (const char *basename_)
{
	string s;
	gen_name (basename_,s);
	return strdup (s.c_str ());
}

// ----------------------------------------------------------------------------
//  CLASS : sc_object
//                                               
// ----------------------------------------------------------------------------

const char* const sc_object::kind_string = "sc_object";

void
sc_object::set_kind (const char *k)
{
	object2infos[this].kind_string = k;
}

void
sc_object::init ()
{
	set_kind ("sc_object");
  add_child (*this);
}

sc_object::sc_object()
{
	string noname;
 	gen_name ("noname_",noname);
#if 0
  cerr << "object2basename[this] = " << noname << "\n"; 
#endif
  object2basename[this] = noname;
  build_complete_name (noname.c_str(),object2fullname[this]);
	init ();
}

sc_object::sc_object(const char *name_)
{
  const char *temp;
  if (name_ == NULL) {
    if (module_name_stack.empty())
    {
      cerr << "Internal error : module_name_stack is empty.";
      exit (21092005);
    }
    string &module_name = module_name_stack.back ();
    temp = module_name.c_str ();
  } else {
    temp = name_;
  }
#if 0
  cerr << "object2basename[this] = " << temp << "\n"; 
  cerr << "name temp = " << temp << endl;
#endif
  object2basename[this] = temp;
  build_complete_name (name_,object2fullname[this]);
	init ();
}

const char *
sc_object::basename () const
{
  return object2basename[this].c_str ();
}

const char *
sc_object::name () const
{
	object2name_t::iterator i = object2fullname.find (this);
#ifdef DEBUG
	if (i == object2fullname.end ()) {
		cerr << "Internal error : can't find name of " << this << "\n";
		exit (90);
	}
#endif
  return i->second.c_str ();
}
  
void
sc_object::rename (const char* newname) const
{
/*
	object2name_t::iterator i = object2fullname.find (this);
#ifdef DEBUG
	if (i == object2fullname.end ()) {
		cerr << "Internal error : can't find name of " << this << "\n";
		exit (90);
	}
#endif
  i->second = newname;
  object2basename[this] = newname;
*/
  object2basename[this] = newname;
  build_complete_name (newname,object2fullname[this]);
/*
  const std::vector<sc_object*>& childs = get_child_objects();
  std::vector<sc_object*>::const_iterator it;
  for (it = childs.begin (); it != childs.end (); ++it)
  {
    string     out;
    sc_object* obj = *it;
    ASSERT(obj != NULL);
    build_full_name (out, *obj);
  }
*/
}
const char *sc_object::kind () const
{
	object2infos_t::iterator i = object2infos.find (this);
#ifdef DEBUG
	if (i == object2infos.end ()) {
		cerr << "Internal error : can't find kind of " << this << "\n";
		exit (90);
	}
#endif
  return i->second.kind_string;
}

sc_object::~sc_object ()
{
  if (save_on_exit)
  {
    sc_save_simulation (save_on_exit);
    save_on_exit = NULL;
  }
  object2fullname.erase (this);
  object2basename.erase (this);
  object2infos.erase    (this);
}

std::ostream& 
operator << (std::ostream& os, const sc_object& obj)
{
	return os << obj.name ();
}

/* virtual */ 
const std::vector<sc_object*>& 
sc_object::get_child_objects() const
{
  return sc_core::get_child_objects (*this);
}

sc_object*
sc_object::get_parent_object () const
{
  return sc_core::get_parent_object (*this);
}

} // end of sc_core namespace