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------------------------------------------------------------------------------
--                                                                          --
--                         GNAT COMPILER COMPONENTS                         --
--                                                                          --
--                              I T Y P E S                                 --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
--          Copyright (C) 1992-2005 Free Software Foundation, Inc.          --
--                                                                          --
-- GNAT is free software;  you can  redistribute it  and/or modify it under --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 2,  or (at your option) any later ver- --
-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT 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  distributed with GNAT;  see file COPYING.  If not, write --
-- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
-- Boston, MA 02110-1301, USA.                                              --
--                                                                          --
-- GNAT was originally developed  by the GNAT team at  New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc.      --
--                                                                          --
------------------------------------------------------------------------------
 
with Atree;    use Atree;
with Opt;      use Opt;
with Sem;      use Sem;
with Sinfo;    use Sinfo;
with Stand;    use Stand;
 
package body Itypes is
 
   ------------------
   -- Create_Itype --
   ------------------
 
   function Create_Itype
     (Ekind        : Entity_Kind;
      Related_Nod  : Node_Id;
      Related_Id   : Entity_Id := Empty;
      Suffix       : Character := ' ';
      Suffix_Index : Nat       := 0;
      Scope_Id     : Entity_Id := Current_Scope)
      return         Entity_Id
   is
      Typ : Entity_Id;
 
   begin
      if Related_Id = Empty then
         Typ := New_Internal_Entity (Ekind, Scope_Id, Sloc (Related_Nod), 'T');
         Set_Public_Status (Typ);
 
      else
         Typ := New_External_Entity
           (Ekind, Scope_Id, Sloc (Related_Nod), Related_Id, Suffix,
               Suffix_Index, 'T');
      end if;
 
      Init_Size_Align (Typ);
      Set_Etype (Typ, Any_Type);
      Set_Is_Itype (Typ);
      Set_Associated_Node_For_Itype (Typ, Related_Nod);
 
      if In_Deleted_Code
        and then not ASIS_Mode
      then
         Set_Is_Frozen (Typ);
      end if;
 
      return Typ;
   end Create_Itype;
 
   ---------------------------------
   -- Create_Null_Excluding_Itype --
   ---------------------------------
 
   function Create_Null_Excluding_Itype
      (T           : Entity_Id;
       Related_Nod : Node_Id;
       Scope_Id    : Entity_Id := Current_Scope) return Entity_Id
   is
      I_Typ        : Entity_Id;
 
   begin
      pragma Assert (Is_Access_Type (T));
 
      I_Typ := Create_Itype (Ekind       => E_Access_Subtype,
                             Related_Nod => Related_Nod,
                             Scope_Id    => Scope_Id);
 
      Set_Directly_Designated_Type (I_Typ,
         Directly_Designated_Type (T));
      Set_Etype              (I_Typ, T);
      Init_Size_Align        (I_Typ);
      Set_Depends_On_Private (I_Typ, Depends_On_Private (T));
      Set_Is_Public          (I_Typ, Is_Public (T));
      Set_From_With_Type     (I_Typ, From_With_Type (T));
      Set_Is_Access_Constant (I_Typ, Is_Access_Constant (T));
      Set_Is_Generic_Type    (I_Typ, Is_Generic_Type (T));
      Set_Is_Volatile        (I_Typ, Is_Volatile (T));
      Set_Treat_As_Volatile  (I_Typ, Treat_As_Volatile (T));
      Set_Is_Atomic          (I_Typ, Is_Atomic (T));
      Set_Is_Ada_2005        (I_Typ, Is_Ada_2005 (T));
      Set_Can_Never_Be_Null  (I_Typ);
 
      return I_Typ;
   end Create_Null_Excluding_Itype;
 
end Itypes;