| -- C3900053.AM |
| -- |
| -- 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. |
| --* |
| -- |
| -- OBJECTIVE: |
| -- Check that a private tagged type declared in a package specification |
| -- may be extended with a private extension in a different package |
| -- specification, and that this private extension may in turn be extended |
| -- by a private extension in a third package. |
| -- |
| -- Check that each derivative inherits the user-defined primitive |
| -- subprograms of its parent (including those that its parent inherited), |
| -- that it may override these inherited primitive subprograms, and that it |
| -- may also declare its own primitive subprograms. |
| -- |
| -- Check that type conversion is defined from a type extension to its |
| -- parent, and that this parent itself may be a type extension. |
| -- |
| -- TEST DESCRIPTION: |
| -- Declare a root tagged private type and two associated primitive |
| -- subprograms in a package specification. Declare operations to verify |
| -- the correctness of the components. Declare operations which return |
| -- values of the type's private components, and which will be |
| -- inherited by later derivatives. |
| -- |
| -- Extend the root type with a private extension in a second package |
| -- specification. Declare a new primitive subprogram for the extension, |
| -- and override one of the two inherited subprograms. Within the |
| -- overriding subprogram, utilize type conversion to call the parent's |
| -- implementation of the same subprogram. Also within the overriding |
| -- subprogram, call the new primitive subprogram and each inherited |
| -- subprogram. Declare operations of the private extension which |
| -- override the verification operations of its parent. Declare operations |
| -- of the private extension which return values of the extension's |
| -- private components, and which will be inherited by later derivatives. |
| -- |
| -- Extend the extension with a private extension in a third package |
| -- specification. Declare a new primitive subprogram for this private |
| -- extension, and override one of the three inherited subprograms. |
| -- Within the overriding subprogram, utilize type conversion to call the |
| -- parent's implementation of the same subprogram. Also within the |
| -- overriding subprogram, call the new primitive subprogram and each |
| -- inherited subprogram. Declare operations of the private extension |
| -- which override the verification operations of its parent. |
| -- |
| -- In the main program, declare objects of the root tagged type and |
| -- the two type extensions. For each object, call the overriding |
| -- subprogram, and verify the correctness of the components by calling |
| -- the verification operations. |
| -- |
| -- TEST FILES: |
| -- This test consists of the following files: |
| -- |
| -- C3900050.A |
| -- C3900051.A |
| -- C3900052.A |
| -- => C3900053.AM |
| -- |
| -- |
| -- CHANGE HISTORY: |
| -- 06 Dec 94 SAIC ACVC 2.0 |
| -- 15 May 96 SAIC ACVC 2.1: Modified prologue. |
| -- |
| --! |
| |
| with Report; |
| |
| with C3900050; -- Basic alert abstraction. |
| with C3900051; -- Extended alert abstraction. |
| with C3900052; -- Further extended alert abstraction. |
| |
| use C3900050; -- Primitive operations of Alert_Type directly visible. |
| |
| procedure C3900053 is |
| begin |
| |
| Report.Test ("C390005", "Primitive operation inheritance by type " & |
| "extensions: root type is private; all extensions are " & |
| "private and declared in different packages"); |
| |
| |
| ALERT_SUBTEST: ------------------------------------------------------------- |
| |
| declare |
| Alarm : C3900050.Alert_Type; -- Root tagged private type. |
| begin |
| if not Initial_Values_Okay (Alarm) then |
| Report.Failed ("Wrong initial values for Alert_Type"); |
| end if; |
| |
| Handle (Alarm); |
| |
| if Bad_Final_Values (Alarm) then |
| Report.Failed ("Wrong values for Alert_Type after Handle"); |
| end if; |
| end Alert_Subtest; |
| |
| |
| -- Check intermediate display counts: |
| |
| if C3900050.Display_Count_For (Null_Device) /= 1 or |
| C3900050.Display_Count_For (Teletype) /= 0 or |
| C3900050.Display_Count_For (Console) /= 0 or |
| C3900050.Display_Count_For (Big_Screen) /= 0 |
| then |
| Report.Failed ("Wrong display counts after Alert_Type"); |
| end if; |
| |
| |
| LOW_ALERT_SUBTEST: --------------------------------------------------------- |
| |
| declare |
| Low_Alarm : C3900051.Low_Alert_Type; -- Priv. ext. of tagged type. |
| use C3900051; -- Primitive operations of extension directly visible. |
| begin |
| if not Initial_Values_Okay (Low_Alarm) then |
| Report.Failed ("Wrong initial values for Low_Alert_Type"); |
| end if; |
| |
| Handle (Low_Alarm); |
| |
| if Bad_Final_Values (Low_Alarm) then |
| Report.Failed ("Wrong values for Low_Alert_Type after Handle"); |
| end if; |
| end Low_Alert_Subtest; |
| |
| |
| -- Check intermediate display counts: |
| |
| if C3900050.Display_Count_For /= (Null_Device => 2, |
| Teletype => 1, |
| Console => 0, |
| Big_Screen => 0) |
| then |
| Report.Failed ("Wrong display counts after Low_Alert_Type"); |
| end if; |
| |
| |
| MEDIUM_ALERT_SUBTEST: ------------------------------------------------------ |
| |
| declare |
| Medium_Alarm : C3900052.Medium_Alert_Type; -- Priv. ext. of extension. |
| use C3900052; -- Primitive operations of extension directly visible. |
| begin |
| if not Initial_Values_Okay (Medium_Alarm) then |
| Report.Failed ("Wrong initial values for Medium_Alert_Type"); |
| end if; |
| |
| Handle (Medium_Alarm); |
| |
| if Bad_Final_Values (Medium_Alarm) then |
| Report.Failed ("Wrong values for Medium_Alert_Type after Handle"); |
| end if; |
| end Medium_Alert_Subtest; |
| |
| |
| -- Check final display counts: |
| |
| if C3900050.Display_Count_For /= (Null_Device => 3, |
| Teletype => 2, |
| Console => 1, |
| Big_Screen => 0) |
| then |
| Report.Failed ("Wrong display counts after Medium_Alert_Type"); |
| end if; |
| |
| |
| Report.Result; |
| |
| end C3900053; |
