gcc/ada/a-filico.adb

   1 -----------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                S Y S T E M . L I S T _ F I N A L I Z A T I O N           --
   6 --                                                                          --
   7 --                                B o d y                                   --
   8 --                                                                          --
   9 --                                                                          --
  10 --          Copyright (C) 1992-2001 Free Software Foundation, Inc.          --
  11 --                                                                          --
  12 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  13 -- terms of the  GNU General Public License as published  by the Free Soft- --
  14 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  15 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  16 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  17 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  18 -- for  more details.  You should have  received  a copy of the GNU General --
  19 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  20 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  21 -- MA 02111-1307, USA.                                                      --
  22 --                                                                          --
  23 -- As a special exception,  if other files  instantiate  generics from this --
  24 -- unit, or you link  this unit with other files  to produce an executable, --
  25 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  26 -- covered  by the  GNU  General  Public  License.  This exception does not --
  27 -- however invalidate  any other reasons why  the executable file  might be --
  28 -- covered by the  GNU Public License.                                      --
  29 --                                                                          --
  30 -- GNAT was originally developed  by the GNAT team at  New York University. --
  31 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  32 --                                                                          --
  33 ------------------------------------------------------------------------------
  34
  35 with System.Finalization_Implementation;
  36 package body Ada.Finalization.List_Controller is
  37
  38    package SFI renames System.Finalization_Implementation;
  39
  40    --------------
  41    -- Finalize --
  42    --------------
  43
  44    procedure Finalize (Object : in out List_Controller) is
  45       use type SFR.Finalizable_Ptr;
  46
  47       Last_Ptr : constant SFR.Finalizable_Ptr := Object.Last'Unchecked_Access;
  48
  49    begin
  50       while Object.First.Next /= Last_Ptr loop
  51          SFI.Finalize_One (Object.First.Next.all);
  52       end loop;
  53    end Finalize;
  54
  55    procedure Finalize (Object : in out Simple_List_Controller) is
  56    begin
  57       SFI.Finalize_List (Object.F);
  58       Object.F := null;
  59    end Finalize;
  60
  61    ----------------
  62    -- Initialize --
  63    ----------------
  64
  65    procedure Initialize (Object : in out List_Controller) is
  66    begin
  67       Object.F          := Object.First'Unchecked_Access;
  68       Object.First.Next := Object.Last 'Unchecked_Access;
  69       Object.Last.Prev  := Object.First'Unchecked_Access;
  70    end Initialize;
  71
  72 end Ada.Finalization.List_Controller;