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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT RUN-TIME COMPONENTS --
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4 -- --
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5 -- A D A . F I N A L I Z A T I O N --
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6 -- --
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7 -- S p e c --
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8 -- --
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9 -- Copyright (C) 1992-2017, Free Software Foundation, Inc. --
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10 -- --
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11 -- This specification is derived from the Ada Reference Manual for use with --
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12 -- GNAT. The copyright notice above, and the license provisions that follow --
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13 -- apply solely to the contents of the part following the private keyword. --
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14 -- --
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15 -- GNAT is free software; you can redistribute it and/or modify it under --
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16 -- terms of the GNU General Public License as published by the Free Soft- --
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17 -- ware Foundation; either version 3, or (at your option) any later ver- --
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18 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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19 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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20 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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21 -- --
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22 -- As a special exception under Section 7 of GPL version 3, you are granted --
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23 -- additional permissions described in the GCC Runtime Library Exception, --
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24 -- version 3.1, as published by the Free Software Foundation. --
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25 -- --
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26 -- You should have received a copy of the GNU General Public License and --
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27 -- a copy of the GCC Runtime Library Exception along with this program; --
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28 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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29 -- <http://www.gnu.org/licenses/>. --
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30 -- --
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31 -- GNAT was originally developed by the GNAT team at New York University. --
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32 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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33 -- --
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34 ------------------------------------------------------------------------------
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35
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36 pragma Warnings (Off);
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37 with System.Finalization_Root;
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38 pragma Warnings (On);
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39
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40 package Ada.Finalization is
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41 pragma Pure;
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42
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43 type Controlled is abstract tagged private;
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44 pragma Preelaborable_Initialization (Controlled);
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45
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46 procedure Initialize (Object : in out Controlled) is null;
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47 procedure Adjust (Object : in out Controlled) is null;
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48 procedure Finalize (Object : in out Controlled) is null;
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49
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50 type Limited_Controlled is abstract tagged limited private;
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51 pragma Preelaborable_Initialization (Limited_Controlled);
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52
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53 procedure Initialize (Object : in out Limited_Controlled) is null;
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54 procedure Finalize (Object : in out Limited_Controlled) is null;
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55
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56 private
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57 package SFR renames System.Finalization_Root;
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58
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59 type Controlled is abstract new SFR.Root_Controlled with null record;
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60
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61 -- In order to simplify the implementation, the mechanism in Process_Full_
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62 -- View ensures that the full view is limited even though the parent type
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63 -- is not.
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64
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65 type Limited_Controlled is
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66 abstract new SFR.Root_Controlled with null record;
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67
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68 end Ada.Finalization;
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