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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;