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jeremybenn |
-- C761011.A
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--
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-- Grant of Unlimited Rights
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--
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-- The Ada Conformity Assessment Authority (ACAA) holds unlimited
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-- rights in the software and documentation contained herein. Unlimited
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-- rights are the same as those granted by the U.S. Government for older
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-- parts of the Ada Conformity Assessment Test Suite, and are defined
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-- in DFAR 252.227-7013(a)(19). By making this public release, the ACAA
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-- intends to confer upon all recipients unlimited rights equal to those
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-- held by the ACAA. These rights include rights to use, duplicate,
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-- release or disclose the released technical data and computer software
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-- in whole or in part, in any manner and for any purpose whatsoever, and
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-- to have or permit others to do so.
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--
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-- DISCLAIMER
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--
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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--
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-- OBJECTIVE:
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-- Check that if a Finalize propagates an exception, other Finalizes due
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-- to be performed are performed.
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-- Case 1: A Finalize invoked due to the end of execution of
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-- a master. (Defect Report 8652/0023, as reflected in Technical
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-- Corrigendum 1).
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-- Case 2: A Finalize invoked due to finalization of an anonymous
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-- object. (Defect Report 8652/0023, as reflected in Technical
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-- Corrigendum 1).
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-- Case 3: A Finalize invoked due to the transfer of control
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-- due to an exit statement.
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-- Case 4: A Finalize invoked due to the transfer of control
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-- due to a goto statement.
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-- Case 5: A Finalize invoked due to the transfer of control
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-- due to a return statement.
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-- Case 6: A Finalize invoked due to the transfer of control
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-- due to raises an exception.
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--
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--
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-- CHANGE HISTORY:
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-- 29 JAN 2001 PHL Initial version
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-- 15 MAR 2001 RLB Readied for release; added optimization blockers.
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-- Added test cases for paragraphs 18 and 19 of the
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-- standard (the previous tests were withdrawn).
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--
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--!
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with Ada.Finalization;
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use Ada.Finalization;
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package C761011_0 is
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type Ctrl (D : Boolean) is new Ada.Finalization.Controlled with
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record
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Finalized : Boolean := False;
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case D is
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when False =>
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C1 : Integer;
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when True =>
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C2 : Float;
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end case;
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end record;
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function Create (Id : Integer) return Ctrl;
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procedure Finalize (Obj : in out Ctrl);
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function Was_Finalized (Id : Integer) return Boolean;
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procedure Use_It (Obj : in Ctrl);
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-- Use Obj to prevent optimization.
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end C761011_0;
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with Report;
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use Report;
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package body C761011_0 is
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User_Error : exception;
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Finalize_Called : array (0 .. 50) of Boolean := (others => False);
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function Create (Id : Integer) return Ctrl is
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Obj : Ctrl (Boolean'Val (Id mod Ident_Int (2)));
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begin
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case Obj.D is
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when False =>
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Obj.C1 := Ident_Int (Id);
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when True =>
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Obj.C2 := Float (Ident_Int (Id + Ident_Int (Id)));
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end case;
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return Obj;
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end Create;
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procedure Finalize (Obj : in out Ctrl) is
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begin
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if not Obj.Finalized then
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Obj.Finalized := True;
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if Obj.D then
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if Integer (Obj.C2 / 2.0) mod Ident_Int (10) =
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Ident_Int (3) then
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raise User_Error;
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else
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Finalize_Called (Integer (Obj.C2) / 2) := True;
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end if;
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else
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if Obj.C1 mod Ident_Int (10) = Ident_Int (0) then
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raise Tasking_Error;
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else
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Finalize_Called (Obj.C1) := True;
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end if;
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end if;
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end if;
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end Finalize;
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function Was_Finalized (Id : Integer) return Boolean is
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begin
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return Finalize_Called (Ident_Int (Id));
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end Was_Finalized;
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procedure Use_It (Obj : in Ctrl) is
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-- Use Obj to prevent optimization.
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begin
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case Obj.D is
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when True =>
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if not Equal (Boolean'Pos(Obj.Finalized),
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Boolean'Pos(Obj.Finalized)) then
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Failed ("Identity check - 1");
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end if;
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when False =>
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if not Equal (Obj.C1, Obj.C1) then
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Failed ("Identity check - 2");
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end if;
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end case;
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end Use_It;
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end C761011_0;
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with Ada.Exceptions;
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use Ada.Exceptions;
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with Ada.Finalization;
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with C761011_0;
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use C761011_0;
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with Report;
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use Report;
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procedure C761011 is
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begin
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Test
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("C761011",
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" Check that if a finalize propagates an exception, other finalizes " &
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"due to be performed are performed");
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Normal: -- Case 1
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begin
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declare
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Obj1 : Ctrl := Create (Ident_Int (1));
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Obj2 : constant Ctrl := (Ada.Finalization.Controlled with
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D => False,
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Finalized => Ident_Bool (False),
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C1 => Ident_Int (2));
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Obj3 : Ctrl :=
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(Ada.Finalization.Controlled with
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D => True,
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Finalized => Ident_Bool (False),
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C2 => 2.0 * Float (Ident_Int
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(3))); -- Finalization: User_Error
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Obj4 : Ctrl := Create (Ident_Int (4));
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begin
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Comment ("Finalization of normal object");
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Use_It (Obj1); -- Prevent optimization of Objects.
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Use_It (Obj2); -- (Critical if AI-147 is adopted.)
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Use_It (Obj3);
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Use_It (Obj4);
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end;
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Failed ("No exception raised by finalization of normal object");
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exception
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when Program_Error =>
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if not Was_Finalized (Ident_Int (1)) or
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not Was_Finalized (Ident_Int (2)) or
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not Was_Finalized (Ident_Int (4)) then
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Failed ("Missing finalizations - 1");
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end if;
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when E: others =>
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Failed ("Exception " & Exception_Name (E) &
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" raised - " & Exception_Message (E) & " - 1");
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end Normal;
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Anon: -- Case 2
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begin
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declare
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Obj1 : Ctrl := (Ada.Finalization.Controlled with
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D => True,
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Finalized => Ident_Bool (False),
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C2 => 2.0 * Float (Ident_Int (5)));
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Obj2 : constant Ctrl := (Ada.Finalization.Controlled with
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D => False,
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Finalized => Ident_Bool (False),
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C1 => Ident_Int (6));
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Obj3 : Ctrl := (Ada.Finalization.Controlled with
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D => True,
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Finalized => Ident_Bool (False),
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C2 => 2.0 * Float (Ident_Int (7)));
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Obj4 : Ctrl := Create (Ident_Int (8));
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begin
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Comment ("Finalization of anonymous object");
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-- The finalization of the anonymous object below will raise
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-- Tasking_Error.
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if Create (Ident_Int (10)).C1 /= Ident_Int (10) then
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Failed ("Incorrect construction of an anonymous object");
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end if;
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Failed ("Anonymous object not finalized at the end of the " &
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"enclosing statement");
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Use_It (Obj1); -- Prevent optimization of Objects.
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Use_It (Obj2); -- (Critical if AI-147 is adopted.)
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Use_It (Obj3);
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Use_It (Obj4);
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end;
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Failed ("No exception raised by finalization of an anonymous " &
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"object of a function");
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exception
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when Program_Error =>
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if not Was_Finalized (Ident_Int (5)) or
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not Was_Finalized (Ident_Int (6)) or
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not Was_Finalized (Ident_Int (7)) or
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not Was_Finalized (Ident_Int (8)) then
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Failed ("Missing finalizations - 2");
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end if;
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when E: others =>
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Failed ("Exception " & Exception_Name (E) &
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" raised - " & Exception_Message (E) & " - 2");
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end Anon;
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An_Exit: -- Case 3
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begin
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for Counter in 1 .. 4 loop
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declare
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Obj1 : Ctrl := Create (Ident_Int (11));
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Obj2 : constant Ctrl := (Ada.Finalization.Controlled with
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D => False,
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Finalized => Ident_Bool (False),
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C1 => Ident_Int (12));
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Obj3 : Ctrl :=
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(Ada.Finalization.Controlled with
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D => True,
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Finalized => Ident_Bool (False),
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C2 => 2.0 * Float (
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Ident_Int(13))); -- Finalization: User_Error
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Obj4 : Ctrl := Create (Ident_Int (14));
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begin
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Comment ("Finalization because of exit of loop");
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Use_It (Obj1); -- Prevent optimization of Objects.
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Use_It (Obj2); -- (Critical if AI-147 is adopted.)
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Use_It (Obj3);
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Use_It (Obj4);
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exit when not Ident_Bool (Obj2.D);
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Failed ("Exit not taken");
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end;
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end loop;
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Failed ("No exception raised by finalization on exit");
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exception
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when Program_Error =>
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if not Was_Finalized (Ident_Int (11)) or
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not Was_Finalized (Ident_Int (12)) or
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not Was_Finalized (Ident_Int (14)) then
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Failed ("Missing finalizations - 3");
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end if;
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when E: others =>
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Failed ("Exception " & Exception_Name (E) &
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" raised - " & Exception_Message (E) & " - 3");
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end An_Exit;
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A_Goto: -- Case 4
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begin
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declare
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Obj1 : Ctrl := Create (Ident_Int (15));
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Obj2 : constant Ctrl := (Ada.Finalization.Controlled with
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D => False,
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Finalized => Ident_Bool (False),
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C1 => Ident_Int (0));
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-- Finalization: Tasking_Error
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Obj3 : Ctrl := Create (Ident_Int (16));
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Obj4 : Ctrl := (Ada.Finalization.Controlled with
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287 |
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D => True,
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288 |
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Finalized => Ident_Bool (False),
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C2 => 2.0 * Float (Ident_Int (17)));
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begin
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Comment ("Finalization because of goto statement");
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292 |
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Use_It (Obj1); -- Prevent optimization of Objects.
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294 |
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Use_It (Obj2); -- (Critical if AI-147 is adopted.)
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Use_It (Obj3);
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Use_It (Obj4);
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297 |
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298 |
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if Ident_Bool (Obj4.D) then
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goto Continue;
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300 |
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end if;
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301 |
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302 |
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Failed ("Goto not taken");
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end;
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304 |
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<>
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305 |
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Failed ("No exception raised by finalization on goto");
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306 |
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exception
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307 |
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when Program_Error =>
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308 |
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if not Was_Finalized (Ident_Int (15)) or
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309 |
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not Was_Finalized (Ident_Int (16)) or
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310 |
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not Was_Finalized (Ident_Int (17)) then
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311 |
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Failed ("Missing finalizations - 4");
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312 |
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end if;
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313 |
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when E: others =>
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314 |
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Failed ("Exception " & Exception_Name (E) &
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315 |
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" raised - " & Exception_Message (E) & " - 4");
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316 |
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end A_Goto;
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317 |
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318 |
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A_Return: -- Case 5
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319 |
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declare
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320 |
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procedure Do_Something is
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321 |
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Obj1 : Ctrl := Create (Ident_Int (18));
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322 |
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Obj2 : Ctrl := (Ada.Finalization.Controlled with
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323 |
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D => True,
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324 |
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Finalized => Ident_Bool (False),
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325 |
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C2 => 2.0 * Float (Ident_Int (19)));
|
326 |
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Obj3 : constant Ctrl := (Ada.Finalization.Controlled with
|
327 |
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D => False,
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328 |
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Finalized => Ident_Bool (False),
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329 |
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C1 => Ident_Int (20));
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330 |
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-- Finalization: Tasking_Error
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331 |
|
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begin
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332 |
|
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Comment ("Finalization because of return statement");
|
333 |
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|
334 |
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Use_It (Obj1); -- Prevent optimization of Objects.
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335 |
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Use_It (Obj2); -- (Critical if AI-147 is adopted.)
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336 |
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Use_It (Obj3);
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337 |
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|
338 |
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if not Ident_Bool (Obj3.D) then
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339 |
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return;
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340 |
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end if;
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341 |
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342 |
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Failed ("Return not taken");
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343 |
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end Do_Something;
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344 |
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begin
|
345 |
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Do_Something;
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346 |
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Failed ("No exception raised by finalization on return statement");
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347 |
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exception
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348 |
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when Program_Error =>
|
349 |
|
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if not Was_Finalized (Ident_Int (18)) or
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350 |
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not Was_Finalized (Ident_Int (19)) then
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351 |
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Failed ("Missing finalizations - 5");
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352 |
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end if;
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353 |
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when E: others =>
|
354 |
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Failed ("Exception " & Exception_Name (E) &
|
355 |
|
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" raised - " & Exception_Message (E) & " - 5");
|
356 |
|
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end A_Return;
|
357 |
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358 |
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Except: -- Case 6
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359 |
|
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declare
|
360 |
|
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Funky_Error : exception;
|
361 |
|
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|
362 |
|
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procedure Do_Something is
|
363 |
|
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Obj1 : Ctrl :=
|
364 |
|
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(Ada.Finalization.Controlled with
|
365 |
|
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D => True,
|
366 |
|
|
Finalized => Ident_Bool (False),
|
367 |
|
|
C2 => 2.0 * Float (
|
368 |
|
|
Ident_Int(23))); -- Finalization: User_Error
|
369 |
|
|
Obj2 : Ctrl := Create (Ident_Int (24));
|
370 |
|
|
Obj3 : Ctrl := Create (Ident_Int (25));
|
371 |
|
|
Obj4 : constant Ctrl := (Ada.Finalization.Controlled with
|
372 |
|
|
D => False,
|
373 |
|
|
Finalized => Ident_Bool (False),
|
374 |
|
|
C1 => Ident_Int (26));
|
375 |
|
|
begin
|
376 |
|
|
Comment ("Finalization because of exception propagation");
|
377 |
|
|
|
378 |
|
|
Use_It (Obj1); -- Prevent optimization of Objects.
|
379 |
|
|
Use_It (Obj2); -- (Critical if AI-147 is adopted.)
|
380 |
|
|
Use_It (Obj3);
|
381 |
|
|
Use_It (Obj4);
|
382 |
|
|
|
383 |
|
|
if not Ident_Bool (Obj4.D) then
|
384 |
|
|
raise Funky_Error;
|
385 |
|
|
end if;
|
386 |
|
|
|
387 |
|
|
Failed ("Exception not raised");
|
388 |
|
|
end Do_Something;
|
389 |
|
|
begin
|
390 |
|
|
Do_Something;
|
391 |
|
|
Failed ("No exception raised by finalization on exception " &
|
392 |
|
|
"propagation");
|
393 |
|
|
exception
|
394 |
|
|
when Program_Error =>
|
395 |
|
|
if not Was_Finalized (Ident_Int (24)) or
|
396 |
|
|
not Was_Finalized (Ident_Int (25)) or
|
397 |
|
|
not Was_Finalized (Ident_Int (26)) then
|
398 |
|
|
Failed ("Missing finalizations - 6");
|
399 |
|
|
end if;
|
400 |
|
|
when Funky_Error =>
|
401 |
|
|
Failed ("Wrong exception propagated");
|
402 |
|
|
-- Should be Program_Error (7.6.1(19)).
|
403 |
|
|
when E: others =>
|
404 |
|
|
Failed ("Exception " & Exception_Name (E) &
|
405 |
|
|
" raised - " & Exception_Message (E) & " - 6");
|
406 |
|
|
end Except;
|
407 |
|
|
|
408 |
|
|
Result;
|
409 |
|
|
end C761011;
|
410 |
|
|
|