gcc/ada/a-finali.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --                     A D A . F I N A L I Z A T I O N                      --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --                                                                          --
  10 --          Copyright (C) 1992-1997 Free Software Foundation, Inc.          --
  11 --                                                                          --
  12 -- This specification is derived from the Ada Reference Manual for use with --
  13 -- GNAT. The copyright notice above, and the license provisions that follow --
  14 -- apply solely to the  contents of the part following the private keyword. --
  15 --                                                                          --
  16 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  17 -- terms of the  GNU General Public License as published  by the Free Soft- --
  18 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  19 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  20 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  21 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  22 -- for  more details.  You should have  received  a copy of the GNU General --
  23 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  24 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  25 -- MA 02111-1307, USA.                                                      --
  26 --                                                                          --
  27 -- As a special exception,  if other files  instantiate  generics from this --
  28 -- unit, or you link  this unit with other files  to produce an executable, --
  29 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  30 -- covered  by the  GNU  General  Public  License.  This exception does not --
  31 -- however invalidate  any other reasons why  the executable file  might be --
  32 -- covered by the  GNU Public License.                                      --
  33 --                                                                          --
  34 -- GNAT was originally developed  by the GNAT team at  New York University. --
  35 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  36 --                                                                          --
  37 ------------------------------------------------------------------------------
  38
  39 with System.Finalization_Root;
  40
  41 package Ada.Finalization is
  42 pragma Preelaborate (Finalization);
  43
  44    type Controlled is abstract tagged private;
  45
  46    procedure Initialize (Object : in out Controlled);
  47    procedure Adjust     (Object : in out Controlled);
  48    procedure Finalize   (Object : in out Controlled);
  49
  50    type Limited_Controlled is abstract tagged limited private;
  51
  52    procedure Initialize (Object : in out Limited_Controlled);
  53    procedure Finalize   (Object : in out Limited_Controlled);
  54
  55 private
  56    package SFR renames System.Finalization_Root;
  57
  58    type Controlled is abstract new SFR.Root_Controlled with null record;
  59
  60    function "=" (A, B : Controlled) return Boolean;
  61    --  Need to be defined explictly because we don't want to compare the
  62    --  hidden pointers
  63
  64    type Limited_Controlled is
  65      abstract new SFR.Root_Controlled with null record;
  66
  67 end Ada.Finalization;