#ifndef IVL_ivl_target_priv_H
#define IVL_ivl_target_priv_H
/*
 * Copyright (c) 2008-2019 Stephen Williams (steve@icarus.com)
 *
 *    This source code is free software; you can redistribute it
 *    and/or modify it in source code form under the terms of the GNU
 *    General Public License as published by the Free Software
 *    Foundation; either version 2 of the License, or (at your option)
 *    any later version.
 *
 *    This program 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 this program; if not, write to the Free Software
 *    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

# include  "ivl_target.h"
# include  <inttypes.h>
# include  <map>
# include  <vector>
# include  <ostream>
# include  <valarray>

class NetScope;

/*
* This header has declarations related to the ivl_target.h API that
* are not to be exported outside of the core via the ivl_target.h
* interface.
*
* (NOTE: A lot of similar definitions exist in the t-dll.h header
* file. That is a legacy from an earlier time before the
* ivl_target_priv.h header file was started, and those definitions
* should gradually be moved over to this header file.)
*/

/*
 * This is the root of a design, from the ivl_target point of few. The
 * ivl_target API uses this as the root for getting at everything else
 * in the design.
 */
struct ivl_design_s {

      int time_precision;

      ivl_process_t threads_;

	// Keep arrays of root scopes.
      std::vector<ivl_scope_t> packages;
      std::vector<ivl_scope_t> roots;

	// This is used to implement the ivl_design_roots function.
      std::vector<ivl_scope_t> root_scope_list;

	// Keep an array of constants objects.
      std::vector<ivl_net_const_t> consts;

	// Keep a handy array of all of the disciplines in the design.
      std::valarray<ivl_discipline_t> disciplines;

      const class Design*self;
};

/*
 * A branch is a pair of terminals. The elaborator assures that the
 * terminals have compatible disciplines.
 */
struct ivl_branch_s {
      ivl_nexus_t pins[2];
      ivl_island_t island;
};

/*
* Information about islands. Connected branches within a net are
* collected into islands. Branches that are purely ddiscrete do not
* have disciplines and do not belong to islands.
*/

struct ivl_island_s {
      ivl_discipline_t discipline;
	// user accessible flags. They are initially false, always.
      std::vector<bool> flags;
};

extern std::ostream& operator << (std::ostream&o, ivl_drive_t str);

#endif /* IVL_ivl_target_priv_H */