1-- C3900052.A 2-- 3-- Grant of Unlimited Rights 4-- 5-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, 6-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 7-- unlimited rights in the software and documentation contained herein. 8-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making 9-- this public release, the Government intends to confer upon all 10-- recipients unlimited rights equal to those held by the Government. 11-- These rights include rights to use, duplicate, release or disclose the 12-- released technical data and computer software in whole or in part, in 13-- any manner and for any purpose whatsoever, and to have or permit others 14-- to do so. 15-- 16-- DISCLAIMER 17-- 18-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR 19-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 20-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE 21-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 22-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A 23-- PARTICULAR PURPOSE OF SAID MATERIAL. 24--* 25-- 26-- OBJECTIVE: 27-- See C3900053.AM. 28-- 29-- TEST DESCRIPTION: 30-- See C3900053.AM. 31-- 32-- TEST FILES: 33-- This test consists of the following files: 34-- 35-- C3900050.A 36-- C3900051.A 37-- => C3900052.A 38-- C3900053.AM 39-- 40-- CHANGE HISTORY: 41-- 06 Dec 94 SAIC ACVC 2.0 42-- 15 May 96 SAIC ACVC 2.1: Modified prologue. Added pragma Elaborate 43-- for Ada.Calendar. 44-- 45--! 46 47with C3900051; -- Extended alert system abstraction. 48package C3900052 is -- Further extended alert system abstraction. 49 50 51 -- Declarations used by component Action_Officer; 52 53 type Person_Enum is (Nobody, Duty_Officer, 54 Watch_Commander, Commanding_Officer); 55 56 57 type Medium_Alert_Type is new C3900051.Low_Alert_Type 58 with private; -- Private extension of 59 -- private extension. 60 61 -- Inherits (inherited) procedure Display from Low_Alert_Type. 62 -- Inherits function Level_Of from Low_Alert_Type. 63 64 procedure Handle (MA : in out Medium_Alert_Type); -- Override parent's 65 -- primitive subprog. 66 67 procedure Assign_Officer (MA : in out Medium_Alert_Type; 68 To : in Person_Enum); 69 70 71 -- The following functions are needed to verify the values of the 72 -- extension's private components. 73 74 function Initial_Values_Okay (MA : in Medium_Alert_Type) 75 return Boolean; -- Override parent's 76 -- primitive subprog. 77 78 function Bad_Final_Values (MA: in Medium_Alert_Type) -- Override parent's 79 return Boolean; -- primitive subprog. 80 81private 82 83 type Medium_Alert_Type is new C3900051.Low_Alert_Type with record 84 Action_Officer : Person_Enum := Nobody; 85 end record; 86 87end C3900052; 88 89 90 --==================================================================-- 91 92 93with C3900050; -- Basic alert abstraction. 94with Ada.Calendar; 95pragma Elaborate (Ada.Calendar); 96 97package body C3900052 is -- Further extended alert system abstraction. 98 99 use C3900050; -- Enumeration values directly visible. 100 use C3900051; -- Extended alert system abstraction. 101 102 103 procedure Assign_Officer (MA : in out Medium_Alert_Type; 104 To : in Person_Enum) is 105 begin 106 MA.Action_Officer := To; 107 end Assign_Officer; 108 109 110 procedure Handle (MA : in out Medium_Alert_Type) is 111 begin 112 Handle (Low_Alert_Type (MA)); -- Call parent's op (type conversion). 113 Set_Level (MA, 2); -- Call inherited operation. 114 Assign_Officer (MA, Duty_Officer); -- Call newly declared operation. 115 Set_Display (MA, Console); -- Call inherited operation. 116 Display (MA); -- Call doubly inherited operation. 117 end Handle; 118 119 120 function Initial_Values_Okay (MA : in Medium_Alert_Type) return Boolean is 121 begin 122 -- Call parent's operation (type conversion). 123 return (Initial_Values_Okay (Low_Alert_Type (MA)) and 124 MA.Action_Officer = Nobody); 125 end Initial_Values_Okay; 126 127 128 function Bad_Final_Values (MA : in Medium_Alert_Type) return Boolean is 129 use type Ada.Calendar.Time; 130 begin 131 return (Get_Time(MA) /= Alert_Time or 132 Get_Display(MA) /= Console or 133 Get_Level(MA) /= 2 or 134 MA.Action_Officer /= Duty_Officer); 135 end Bad_Final_Values; 136 137 138end C3900052; 139