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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- A D A . F I N A L I Z A T I O N . L I S T _ C O N T R O L L E R --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2009, 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 3, 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. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with System.Finalization_Implementation;
package body Ada.Finalization.List_Controller is
package SFI renames System.Finalization_Implementation;
--------------
-- Finalize --
--------------
procedure Finalize (Object : in out List_Controller) is
use type SFR.Finalizable_Ptr;
Last_Ptr : constant SFR.Finalizable_Ptr := Object.Last'Unchecked_Access;
begin
-- First take note of the fact that finalization of this collection has
-- started.
Object.F := SFI.Collection_Finalization_Started;
-- Then finalize all the objects. Note that finalization can call
-- Unchecked_Deallocation on other objects in the same collection,
-- which will cause them to be removed from the list if we have not
-- gotten to them yet. However, allocation in the collection will raise
-- Program_Error, due to the above Collection_Finalization_Started.
while Object.First.Next /= Last_Ptr loop
SFI.Finalize_One (Object.First.Next.all);
end loop;
end Finalize;
procedure Finalize (Object : in out Simple_List_Controller) is
begin
SFI.Finalize_List (Object.F);
Object.F := null;
end Finalize;
----------------
-- Initialize --
----------------
procedure Initialize (Object : in out List_Controller) is
begin
Object.F := Object.First'Unchecked_Access;
Object.First.Next := Object.Last 'Unchecked_Access;
Object.Last.Prev := Object.First'Unchecked_Access;
end Initialize;
end Ada.Finalization.List_Controller;
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