--  Meta description of nodes.
--  Copyright (C) 2015 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 Types; use Types;
with PSL.Nodes; use PSL.Nodes;

package PSL.Nodes_Meta is
   --  The enumeration of all possible types in the nodes.
   type Types_Enum is
     (
      --  TYPES
     );

   --  The enumeration of all fields defined in iirs.
   type Fields_Enum is
     (
      --  FIELDS
     );
   pragma Discard_Names (Fields_Enum);

   --  Return the type of field F.
   function Get_Field_Type (F : Fields_Enum) return Types_Enum;

   --  Get the name of a field.
   function Get_Field_Image (F : Fields_Enum) return String;

   --  Get the name of a kind.
   function Get_Nkind_Image (K : Nkind) return String;

   --  Possible attributes of a field.
   type Field_Attribute is
     (
      Attr_None,
      Attr_Ref, Attr_Maybe_Ref, Attr_Of_Ref,
      Attr_Chain, Attr_Chain_Next
     );

   --  Get the attribute of a field.
   function Get_Field_Attribute (F : Fields_Enum) return Field_Attribute;

   type Fields_Array is array (Natural range <>) of Fields_Enum;

   --  Return the list of fields for node K.  The fields are sorted: first
   --  the non nodes/list of nodes, then the nodes/lists that aren't reference,
   --  and then the reference.
   function Get_Fields (K : Nkind) return Fields_Array;

   --  Get/Set a field.
   --  FUNCS
end PSL.Nodes_Meta;