| -- C393007.A |
| -- |
| -- Grant of Unlimited Rights |
| -- |
| -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, |
| -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained |
| -- unlimited rights in the software and documentation contained herein. |
| -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making |
| -- this public release, the Government intends to confer upon all |
| -- recipients unlimited rights equal to those held by the Government. |
| -- These rights include rights to use, duplicate, release or disclose the |
| -- released technical data and computer software in whole or in part, in |
| -- any manner and for any purpose whatsoever, and to have or permit others |
| -- to do so. |
| -- |
| -- DISCLAIMER |
| -- |
| -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR |
| -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED |
| -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE |
| -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE |
| -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A |
| -- PARTICULAR PURPOSE OF SAID MATERIAL. |
| --* |
| -- |
| -- TEST OBJECTIVE: |
| -- Check that an extended type can be derived from an abstract type, |
| -- where the abstract type is defined in a package, and the type derived |
| -- from it is defined in a distinct library package. |
| -- |
| -- TEST DESCRIPTION: |
| -- Declare an private (abstract) type; declare two primitive operations |
| -- of the type that are explicitly abstract. |
| -- Derive an extended type from the (private) abstract type, overriding |
| -- both of the primitive operations. |
| -- This test also checks to see that name overloading between abstract |
| -- and non-abstract functions is resolved correctly. |
| -- |
| -- |
| -- CHANGE HISTORY: |
| -- 06 Dec 94 SAIC ACVC 2.0 |
| -- |
| --! |
| |
| package C393007_0 is |
| -- Alert_System |
| |
| type DT_Type is new Integer; |
| |
| type Alert_Type is abstract tagged record |
| Time_Of_Arrival : DT_Type; |
| end record; |
| |
| type Log_File_Type is range 0 .. 100; |
| |
| Procedure Handle (A : in out Alert_type) is abstract; |
| |
| procedure Log (A : Alert_Type; |
| L : in out Log_File_Type) is abstract; |
| |
| procedure Set_Time (A : in out Alert_Type); |
| |
| function Correct_Time_Stamp (A : Alert_Type) return Boolean; |
| |
| Day_Time : DT_Type := 100; |
| |
| end C393007_0; |
| -- Alert_System; |
| |
| --=======================================================================-- |
| |
| package body C393007_0 is |
| -- Alert_System |
| |
| function Time_Stamp return DT_Type is |
| begin |
| Day_Time := Day_Time + 1; |
| return Day_Time; |
| end Time_Stamp; |
| |
| procedure Set_Time (A : in out Alert_Type) is |
| begin |
| A.Time_Of_Arrival := Time_Stamp; |
| end Set_time; |
| |
| function Correct_Time_Stamp ( A : Alert_Type) return Boolean is |
| begin |
| return (A.Time_Of_Arrival = Day_Time); |
| end Correct_Time_Stamp; |
| |
| end C393007_0; |
| -- Alert_System; |
| |
| --=======================================================================-- |
| |
| with Report; |
| with C393007_0; |
| -- Alert_system; |
| |
| package C393007_1 is |
| |
| type Normal_Alert_Type is |
| new C393007_0.Alert_Type |
| with null record; |
| |
| Log_File: C393007_0.Log_File_Type := C393007_0.Log_File_Type'First; |
| |
| procedure Handle (A : in out Normal_Alert_Type); -- Override is required |
| |
| procedure Log (A : Normal_Alert_Type; -- Override is required |
| L : in out C393007_0.Log_File_Type); |
| end C393007_1; |
| |
| package body C393007_1 is |
| use type C393007_0.Log_File_Type; |
| |
| procedure Handle (A : in out Normal_Alert_Type) is |
| begin |
| Set_Time (A); |
| Log (A, Log_File); |
| end Handle; |
| |
| procedure Log (A : Normal_Alert_Type; |
| L : in out C393007_0.Log_File_Type) is |
| begin |
| L := C393007_0."+"(L, 1); |
| end Log; |
| |
| end C393007_1; |
| |
| with Report; |
| with C393007_0; |
| with C393007_1; |
| -- Alert_system; |
| |
| procedure C393007 is |
| use C393007_0; |
| use C393007_1; |
| |
| Alert_One : C393007_1.Normal_Alert_Type; |
| |
| begin |
| Report.Test ("C393007", "Check that an extended type can be derived " & |
| "from an abstract type"); |
| |
| Handle (Alert_One); |
| if not Correct_Time_Stamp (Alert_One) then |
| Report.Failed ("Wrong results from procedure Handle"); |
| end if; |
| |
| if Log_File /=1 then |
| Report.Failed ("Wrong results"); |
| end if; |
| |
| Report.Result; |
| |
| end C393007; |