--  EDIF utils.
--  Copyright (C) 2019 Tristan Gingold
--
--  GHDL is free software; you can redistribute it and/or modify it under
--  the terms of the GNU General Public License as published by the Free
--  Software Foundation; either version 2, or (at your option) any later
--  version.
--
--  GHDL 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 GHDL; see the file COPYING.  If not, write to the Free
--  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
--  02111-1307, USA.

with Edif.Nodes; use Edif.Nodes;

package Edif.Nutils is
   type Constr_Type is limited private;

   procedure Init_Constr (Constr : out Constr_Type);
   procedure Append_Node (Constr : in out Constr_Type; N : Node);
   function Get_Constr_Chain (Constr : Constr_Type) return Node;

private
   type Constr_Type is record
      First : Node;
      Last : Node;
   end record;
end Edif.Nutils;