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jeremybenn |
-- C761003.A
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--
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-- Grant of Unlimited Rights
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--
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-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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-- unlimited rights in the software and documentation contained herein.
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-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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-- this public release, the Government intends to confer upon all
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-- recipients unlimited rights equal to those held by the Government.
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-- These rights include rights to use, duplicate, release or disclose the
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-- released technical data and computer software in whole or in part, in
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-- any manner and for any purpose whatsoever, and to have or permit others
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-- 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 an object of a controlled type is finalized when the
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-- enclosing master is complete.
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-- Check this for controlled types where the derived type has a
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-- discriminant.
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-- Check this for subprograms of abstract types derived from the
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-- types in Ada.Finalization.
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--
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-- Check that finalization of controlled objects is
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-- performed in the correct order. In particular, check that if
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-- multiple objects of controlled types are declared immediately
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-- within the same declarative part then type are finalized in the
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-- reverse order of their creation.
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--
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-- TEST DESCRIPTION:
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-- This test checks these conditions for subprograms and
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-- block statements; both variables and constants of controlled
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-- types; cases of a controlled component of a record type, as
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-- well as an array with controlled components.
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--
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-- The base controlled types used for the test are defined
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-- with a character discriminant. The initialize procedure for
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-- the types will record the order of creation in a globally
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-- accessible array, the finalize procedure for the types will call
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-- TCTouch with that tag character. The test can then check that
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-- the order of finalization is indeed the reverse of the order of
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-- creation (assuming that the implementation calls Initialize in
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-- the order that the objects are created).
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--
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--
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-- CHANGE HISTORY:
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-- 06 Dec 94 SAIC ACVC 2.0
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-- 02 Nov 95 SAIC ACVC 2.0.1
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--
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--!
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------------------------------------------------------------ C761003_Support
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package C761003_Support is
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function Pick_Char return Character;
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-- successive calls to Pick_Char return distinct characters which may
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-- be assigned to objects to track an order sequence. These characters
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-- are then used in calls to TCTouch.Touch.
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procedure Validate(Initcount : Natural;
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Testnumber : Natural;
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Check_Order : Boolean := True);
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-- does a little extra processing prior to calling TCTouch.Validate,
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-- specifically, it reverses the stored string of characters, and checks
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-- for a correct count.
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Inits_Order : String(1..255);
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Inits_Called : Natural := 0;
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end C761003_Support;
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-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
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with Report;
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with TCTouch;
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package body C761003_Support is
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type Pick_Rotation is mod 52;
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type Pick_String is array(Pick_Rotation) of Character;
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From : constant Pick_String := "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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& "abcdefghijklmnopqrstuvwxyz";
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Recent_Pick : Pick_Rotation := Pick_Rotation'Last;
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function Pick_Char return Character is
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begin
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Recent_Pick := Recent_Pick +1;
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return From(Recent_Pick);
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end Pick_Char;
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function Invert(S:String) return String is
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T: String(1..S'Length);
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begin
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for SI in reverse S'Range loop
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T(S'Last - SI + 1) := S(SI);
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end loop;
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return T;
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end Invert;
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procedure Validate(Initcount : Natural;
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Testnumber : Natural;
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Check_Order : Boolean := True) is
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Number : constant String := Natural'Image(Testnumber);
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begin
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if Inits_Called /= Initcount then
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Report.Failed("Got" & Natural'Image(Inits_Called) & " inits, expected"
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& Natural'Image(Initcount) & ", Subtest " & Number);
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TCTouch.Flush;
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else
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TCTouch.Validate(
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Invert(Inits_Order(1..Inits_Called)),
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"Subtest " & Number, Order_Meaningful => Check_Order );
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end if;
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Inits_Called := 0; -- reset for the next batch
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end Validate;
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end C761003_Support;
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------------------------------------------------------------------ C761003_0
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with Ada.Finalization;
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package C761003_0 is
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type Global(Tag: Character) is new Ada.Finalization.Controlled
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with null record;
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procedure Initialize( It: in out Global );
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procedure Finalize ( It: in out Global );
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Null_Global : Global('1') := (Ada.Finalization.Controlled with Tag => '1');
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type Second(Tag: Character) is new Ada.Finalization.Limited_Controlled
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with null record;
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procedure Initialize( It: in out Second );
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procedure Finalize ( It: in out Second );
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end C761003_0;
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------------------------------------------------------------------ C761003_1
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with Ada.Finalization;
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package C761003_1 is
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type Global is abstract new Ada.Finalization.Controlled with record
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Tag: Character;
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end record;
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procedure Initialize( It: in out Global );
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procedure Finalize ( It: in out Global );
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type Second is abstract new Ada.Finalization.Limited_Controlled with record
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Tag: Character;
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end record;
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procedure Initialize( It: in out Second );
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procedure Finalize ( It: in out Second );
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end C761003_1;
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------------------------------------------------------------------ C761003_2
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with C761003_1;
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package C761003_2 is
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type Global is new C761003_1.Global with null record;
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-- inherits Initialize and Finalize
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type Second is new C761003_1.Second with null record;
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-- inherits Initialize and Finalize
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end C761003_2;
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-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- C761003_0
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with TCTouch;
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with C761003_Support;
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package body C761003_0 is
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package Sup renames C761003_Support;
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procedure Initialize( It: in out Global ) is
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begin
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Sup.Inits_Called := Sup.Inits_Called +1;
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Sup.Inits_Order(Sup.Inits_Called) := It.Tag;
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end Initialize;
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procedure Finalize( It: in out Global ) is
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begin
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TCTouch.Touch(It.Tag); --------------------------------------------- Tag
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end Finalize;
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procedure Initialize( It: in out Second ) is
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begin
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Sup.Inits_Called := Sup.Inits_Called +1;
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Sup.Inits_Order(Sup.Inits_Called) := It.Tag;
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end Initialize;
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procedure Finalize( It: in out Second ) is
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begin
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TCTouch.Touch(It.Tag); --------------------------------------------- Tag
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end Finalize;
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end C761003_0;
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-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- C761003_1
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with TCTouch;
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with C761003_Support;
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package body C761003_1 is
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package Sup renames C761003_Support;
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procedure Initialize( It: in out Global ) is
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begin
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Sup.Inits_Called := Sup.Inits_Called +1;
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It.Tag := Sup.Pick_Char;
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Sup.Inits_Order(Sup.Inits_Called) := It.Tag;
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end Initialize;
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procedure Finalize( It: in out Global ) is
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begin
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TCTouch.Touch(It.Tag); --------------------------------------------- Tag
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end Finalize;
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procedure Initialize( It: in out Second ) is
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begin
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Sup.Inits_Called := Sup.Inits_Called +1;
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It.Tag := Sup.Pick_Char;
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Sup.Inits_Order(Sup.Inits_Called) := It.Tag;
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end Initialize;
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procedure Finalize( It: in out Second ) is
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begin
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TCTouch.Touch(It.Tag); --------------------------------------------- Tag
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end Finalize;
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end C761003_1;
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-------------------------------------------------------------------- C761003
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with Report;
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with TCTouch;
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with C761003_0;
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with C761003_2;
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with C761003_Support;
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procedure C761003 is
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package Sup renames C761003_Support;
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---------------------------------------------------------------- Subtest_1
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Subtest_1_Inits_Expected : constant := 5; -- includes 1 previous
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procedure Subtest_1 is
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-- the constant will take its constraint from the value.
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-- must be declared first to be finalized last (and take the
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-- initialize from before calling subtest_1)
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Item_1 : constant C761003_0.Global := C761003_0.Null_Global;
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-- Item_2, declared second, should be finalized second to last.
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Item_2 : C761003_0.Global(Sup.Pick_Char);
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-- Item_3 and Item_4 will be created in the order of the
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-- list.
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Item_3, Item_4 : C761003_0.Global(Sup.Pick_Char);
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-- Item_5 will be finalized first.
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Item_5 : C761003_0.Second(Sup.Pick_Char);
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begin
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if Item_3.Tag >= Item_4.Tag then
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Report.Failed("Controlled objects created by list in wrong order");
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end if;
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-- check that nothing has happened yet!
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TCTouch.Validate("","Subtest 1 body");
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end Subtest_1;
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---------------------------------------------------------------- Subtest_2
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-- These declarations should cause calls to initialize and
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-- finalize. The expected operations are the subprograms associated
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-- with the abstract types. Note that for these objects, the
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-- Initialize and Finalize are visible only by inheritance.
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Subtest_2_Inits_Expected : constant := 4;
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procedure Subtest_2 is
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Item_1 : C761003_2.Global;
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Item_2, Item_3 : C761003_2.Global;
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Item_4 : C761003_2.Second;
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begin
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-- check that nothing has happened yet!
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TCTouch.Validate("","Subtest 2 body");
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end Subtest_2;
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---------------------------------------------------------------- Subtest_3
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-- Test for controlled objects embedded in arrays. Using structures
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-- that will cause a checkable order.
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Subtest_3_Inits_Expected : constant := 8;
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procedure Subtest_3 is
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type Global_List is array(Natural range <>)
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of C761003_0.Global(Sup.Pick_Char);
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Items : Global_List(1..4); -- components have the same tag
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type Second_List is array(Natural range <>)
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of C761003_0.Second(Sup.Pick_Char);
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Second_Items : Second_List(1..4); -- components have the same tag,
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-- distinct from the tag used in Items
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begin
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-- check that nothing has happened yet!
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TCTouch.Validate("","Subtest 3 body");
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end Subtest_3;
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---------------------------------------------------------------- Subtest_4
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-- These declarations should cause dispatching calls to initialize and
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-- finalize. The expected operations are the subprograms associated
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-- with the abstract types.
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Subtest_4_Inits_Expected : constant := 2;
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procedure Subtest_4 is
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type Global_Rec is record
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Item1: C761003_0.Global(Sup.Pick_Char);
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end record;
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type Second_Rec is record
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Item2: C761003_2.Second;
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end record;
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G : Global_Rec;
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S : Second_Rec;
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begin
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-- check that nothing has happened yet!
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TCTouch.Validate("","Subtest 4 body");
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end Subtest_4;
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---------------------------------------------------------------- Subtest_5
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-- Test for controlled objects embedded in arrays. In these cases, the
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-- order of the finalization of the components is not defined by the
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-- language.
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Subtest_5_Inits_Expected : constant := 8;
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procedure Subtest_5 is
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type Another_Global_List is array(Natural range <>)
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of C761003_2.Global;
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374 |
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|
|
375 |
|
|
More_Items : Another_Global_List(1..4);
|
376 |
|
|
|
377 |
|
|
type Another_Second_List is array(Natural range <>)
|
378 |
|
|
of C761003_2.Second;
|
379 |
|
|
|
380 |
|
|
Second_More_Items : Another_Second_List(1..4);
|
381 |
|
|
|
382 |
|
|
begin
|
383 |
|
|
-- check that nothing has happened yet!
|
384 |
|
|
TCTouch.Validate("","Subtest 5 body");
|
385 |
|
|
end Subtest_5;
|
386 |
|
|
|
387 |
|
|
---------------------------------------------------------------- Subtest_6
|
388 |
|
|
|
389 |
|
|
-- These declarations should cause dispatching calls to initialize and
|
390 |
|
|
-- finalize. The expected operations are the subprograms associated
|
391 |
|
|
-- with the abstract types.
|
392 |
|
|
|
393 |
|
|
Subtest_6_Inits_Expected : constant := 2;
|
394 |
|
|
|
395 |
|
|
procedure Subtest_6 is
|
396 |
|
|
|
397 |
|
|
type Global_Rec is record
|
398 |
|
|
Item2: C761003_2.Global;
|
399 |
|
|
end record;
|
400 |
|
|
|
401 |
|
|
type Second_Rec is record
|
402 |
|
|
Item1: C761003_0.Second(Sup.Pick_Char);
|
403 |
|
|
end record;
|
404 |
|
|
|
405 |
|
|
G : Global_Rec;
|
406 |
|
|
S : Second_Rec;
|
407 |
|
|
|
408 |
|
|
begin
|
409 |
|
|
-- check that nothing has happened yet!
|
410 |
|
|
TCTouch.Validate("","Subtest 6 body");
|
411 |
|
|
end Subtest_6;
|
412 |
|
|
|
413 |
|
|
begin -- Main test procedure.
|
414 |
|
|
|
415 |
|
|
Report.Test ("C761003", "Check that an object of a controlled type "
|
416 |
|
|
& "is finalized when the enclosing master is "
|
417 |
|
|
& "complete, left by a transfer of control, "
|
418 |
|
|
& "and performed in the correct order" );
|
419 |
|
|
|
420 |
|
|
-- adjust for optional adjusts and initializes for C761003_0.Null_Global
|
421 |
|
|
TCTouch.Flush; -- clear the optional adjust
|
422 |
|
|
if Sup.Inits_Called /= 1 then
|
423 |
|
|
-- C761003_0.Null_Global did not get "initialized"
|
424 |
|
|
C761003_0.Initialize(C761003_0.Null_Global); -- prime the pump
|
425 |
|
|
end if;
|
426 |
|
|
|
427 |
|
|
Subtest_1;
|
428 |
|
|
Sup.Validate(Subtest_1_Inits_Expected, 1);
|
429 |
|
|
|
430 |
|
|
Subtest_2;
|
431 |
|
|
Sup.Validate(Subtest_2_Inits_Expected, 2);
|
432 |
|
|
|
433 |
|
|
Subtest_3;
|
434 |
|
|
Sup.Validate(Subtest_3_Inits_Expected, 3);
|
435 |
|
|
|
436 |
|
|
Subtest_4;
|
437 |
|
|
Sup.Validate(Subtest_4_Inits_Expected, 4);
|
438 |
|
|
|
439 |
|
|
Subtest_5;
|
440 |
|
|
Sup.Validate(Subtest_5_Inits_Expected, 5, Check_Order => False);
|
441 |
|
|
|
442 |
|
|
Subtest_6;
|
443 |
|
|
Sup.Validate(Subtest_6_Inits_Expected, 6);
|
444 |
|
|
|
445 |
|
|
Report.Result;
|
446 |
|
|
|
447 |
|
|
end C761003;
|