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+-- C392008.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.
+--*
+--
+-- OBJECTIVE:
+-- Check that the use of a class-wide formal parameter allows for the
+-- proper dispatching of objects to the appropriate implementation of
+-- a primitive operation. Check this for the case where the root tagged
+-- type is defined in a package and the extended type is defined in a
+-- dependent package.
+--
+-- TEST DESCRIPTION:
+-- Declare a root tagged type, and some associated primitive operations,
+-- in a visible library package.
+-- Extend the root type in another visible library package, and override
+-- one or more primitive operations, inheriting the other primitive
+-- operations from the root type.
+-- Derive from the extended type in yet another visible library package,
+-- again overriding some primitive operations and inheriting others
+-- (including some that the parent inherited).
+-- Define subprograms with class-wide parameters, inside of which is a
+-- call on a dispatching primitive operation. These primitive
+-- operations modify the objects of the specific class passed as actuals
+-- to the class-wide formal parameter (class-wide formal parameter has
+-- mode IN OUT).
+--
+-- The following hierarchy of tagged types and primitive operations is
+-- utilized in this test:
+--
+-- package Bank
+-- type Account (root)
+-- |
+-- | Operations
+-- | proc Deposit
+-- | proc Withdrawal
+-- | func Balance
+-- | proc Service_Charge
+-- | proc Add_Interest
+-- | proc Open
+-- |
+-- package Checking
+-- type Account (extended from Bank.Account)
+-- |
+-- | Operations
+-- | proc Deposit (inherited)
+-- | proc Withdrawal (inherited)
+-- | func Balance (inherited)
+-- | proc Service_Charge (inherited)
+-- | proc Add_Interest (inherited)
+-- | proc Open (overridden)
+-- |
+-- package Interest_Checking
+-- type Account (extended from Checking.Account)
+-- |
+-- | Operations
+-- | proc Deposit (inherited twice - Bank.Acct.)
+-- | proc Withdrawal (inherited twice - Bank.Acct.)
+-- | func Balance (inherited twice - Bank.Acct.)
+-- | proc Service_Charge (inherited twice - Bank.Acct.)
+-- | proc Add_Interest (overridden)
+-- | proc Open (overridden)
+-- |
+--
+-- In this test, we are concerned with the following selection of dispatching
+-- calls, accomplished with the use of a Bank.Account'Class IN OUT formal
+-- parameter :
+--
+-- \ Type
+-- Prim. Op \ Bank.Account Checking.Account Interest_Checking.Account
+-- \---------------------------------------------------------
+
+-- Service_Charge | X X X
+-- Add_Interest | X X X
+-- Open | X X X
+--
+--
+--
+-- The location of the declaration of the root and derivation of extended
+-- types will be varied over a series of tests. Locations of declaration
+-- and derivation for a particular test are marked with an asterisk (*).
+--
+-- Root type:
+--
+-- * Declared in package.
+-- Declared in generic package.
+--
+-- Extended types:
+--
+-- Derived in parent location.
+-- Derived in a nested package.
+-- Derived in a nested subprogram.
+-- Derived in a nested generic package.
+-- * Derived in a separate package.
+-- Derived in a separate visible child package.
+-- Derived in a separate private child package.
+--
+-- Primitive Operations:
+--
+-- * Procedures with same parameter profile.
+-- Procedures with different parameter profile.
+-- Functions with same parameter profile.
+-- Functions with different parameter profile.
+-- Mixture of Procedures and Functions.
+--
+--
+-- TEST FILES:
+-- This test depends on the following foundation code:
+--
+-- C392008_0.A
+--
+--
+-- CHANGE HISTORY:
+-- 06 Dec 94 SAIC ACVC 2.0
+-- 20 Nov 95 SAIC C392B04 became C392008 for ACVC 2.0.1
+--
+--!
+
+----------------------------------------------------------------- C392008_0
+
+package C392008_0 is -- package Bank
+
+ type Dollar_Amount is range -30_000..30_000;
+
+ type Account is tagged
+ record
+ Current_Balance: Dollar_Amount;
+ end record;
+
+ -- Primitive operations.
+
+ procedure Deposit (A : in out Account;
+ X : in Dollar_Amount);
+ procedure Withdrawal (A : in out Account;
+ X : in Dollar_Amount);
+ function Balance (A : in Account) return Dollar_Amount;
+ procedure Service_Charge (A : in out Account);
+ procedure Add_Interest (A : in out Account);
+ procedure Open (A : in out Account);
+
+end C392008_0;
+
+-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
+
+package body C392008_0 is
+
+ -- Primitive operations for type Account.
+
+ procedure Deposit (A : in out Account;
+ X : in Dollar_Amount) is
+ begin
+ A.Current_Balance := A.Current_Balance + X;
+ end Deposit;
+
+ procedure Withdrawal(A : in out Account;
+ X : in Dollar_Amount) is
+ begin
+ A.Current_Balance := A.Current_Balance - X;
+ end Withdrawal;
+
+ function Balance (A : in Account) return Dollar_Amount is
+ begin
+ return (A.Current_Balance);
+ end Balance;
+
+ procedure Service_Charge (A : in out Account) is
+ begin
+ A.Current_Balance := A.Current_Balance - 5_00;
+ end Service_Charge;
+
+ procedure Add_Interest (A : in out Account) is
+ Interest_On_Account : Dollar_Amount := 0_00;
+ begin
+ A.Current_Balance := A.Current_Balance + Interest_On_Account;
+ end Add_Interest;
+
+ procedure Open (A : in out Account) is
+ Initial_Deposit : Dollar_Amount := 10_00;
+ begin
+ A.Current_Balance := Initial_Deposit;
+ end Open;
+
+end C392008_0;
+
+----------------------------------------------------------------- C392008_1
+
+with C392008_0; -- package Bank
+
+package C392008_1 is -- package Checking
+
+ package Bank renames C392008_0;
+
+ type Account is new Bank.Account with
+ record
+ Overdraft_Fee : Bank.Dollar_Amount;
+ end record;
+
+ -- Overridden primitive operation.
+
+ procedure Open (A : in out Account);
+
+ -- Inherited primitive operations.
+ -- procedure Deposit (A : in out Account;
+ -- X : in Bank.Dollar_Amount);
+ -- procedure Withdrawal (A : in out Account;
+ -- X : in Bank.Dollar_Amount);
+ -- function Balance (A : in Account) return Bank.Dollar_Amount;
+ -- procedure Service_Charge (A : in out Account);
+ -- procedure Add_Interest (A : in out Account);
+
+end C392008_1;
+
+-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
+
+package body C392008_1 is
+
+ -- Overridden primitive operation.
+
+ procedure Open (A : in out Account) is
+ Check_Guarantee : Bank.Dollar_Amount := 10_00;
+ Initial_Deposit : Bank.Dollar_Amount := 20_00;
+ begin
+ A.Current_Balance := Initial_Deposit;
+ A.Overdraft_Fee := Check_Guarantee;
+ end Open;
+
+end C392008_1;
+
+----------------------------------------------------------------- C392008_2
+
+with C392008_0; -- with Bank;
+with C392008_1; -- with Checking;
+
+package C392008_2 is -- package Interest_Checking
+
+ package Bank renames C392008_0;
+ package Checking renames C392008_1;
+
+ subtype Interest_Rate is Bank.Dollar_Amount range 0..100; -- was digits 4;
+
+ Current_Rate : Interest_Rate := 0_02;
+
+ type Account is new Checking.Account with
+ record
+ Rate : Interest_Rate;
+ end record;
+
+ -- Overridden primitive operations.
+
+ procedure Add_Interest (A : in out Account);
+ procedure Open (A : in out Account);
+
+ -- "Twice" inherited primitive operations (from Bank.Account)
+ -- procedure Deposit (A : in out Account;
+ -- X : in Bank.Dollar_Amount);
+ -- procedure Withdrawal (A : in out Account;
+ -- X : in Bank.Dollar_Amount);
+ -- function Balance (A : in Account) return Bank.Dollar_Amount;
+ -- procedure Service_Charge (A : in out Account);
+
+end C392008_2;
+
+-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
+
+package body C392008_2 is
+
+ -- Overridden primitive operations.
+
+ procedure Add_Interest (A : in out Account) is
+ Interest_On_Account : Bank.Dollar_Amount
+ := Bank.Dollar_Amount( Bank."*"( A.Current_Balance, A.Rate ));
+ begin
+ A.Current_Balance := Bank."+"( A.Current_Balance, Interest_On_Account);
+ end Add_Interest;
+
+ procedure Open (A : in out Account) is
+ Initial_Deposit : Bank.Dollar_Amount := 30_00;
+ begin
+ Checking.Open (Checking.Account (A));
+ A.Current_Balance := Initial_Deposit;
+ A.Rate := Current_Rate;
+ end Open;
+
+end C392008_2;
+
+------------------------------------------------------------------- C392008
+
+with C392008_0; use C392008_0; -- package Bank
+with C392008_1; use C392008_1; -- package Checking;
+with C392008_2; use C392008_2; -- package Interest_Checking;
+with Report;
+
+procedure C392008 is
+
+ package Bank renames C392008_0;
+ package Checking renames C392008_1;
+ package Interest_Checking renames C392008_2;
+
+ B_Acct : Bank.Account;
+ C_Acct : Checking.Account;
+ IC_Acct : Interest_Checking.Account;
+
+ --
+ -- Define procedures with class-wide formal parameters of mode IN OUT.
+ --
+
+ -- This procedure will perform a dispatching call on the
+ -- overridden primitive operation Open.
+
+ procedure New_Account (Acct : in out Bank.Account'Class) is
+ begin
+ Open (Acct); -- Dispatch according to tag of class-wide parameter.
+ end New_Account;
+
+ -- This procedure will perform a dispatching call on the inherited
+ -- primitive operation (for all types derived from the root Bank.Account)
+ -- Service_Charge.
+
+ procedure Apply_Service_Charge (Acct: in out Bank.Account'Class) is
+ begin
+ Service_Charge (Acct); -- Dispatch according to tag of class-wide parm.
+ end Apply_Service_Charge;
+
+ -- This procedure will perform a dispatching call on the
+ -- inherited/overridden primitive operation Add_Interest.
+
+ procedure Annual_Interest (Acct: in out Bank.Account'Class) is
+ begin
+ Add_Interest (Acct); -- Dispatch according to tag of class-wide parm.
+ end Annual_Interest;
+
+begin
+
+ Report.Test ("C392008", "Check that the use of a class-wide formal " &
+ "parameter allows for the proper dispatching " &
+ "of objects to the appropriate implementation " &
+ "of a primitive operation");
+
+ -- Check the dispatch to primitive operations overridden for each
+ -- extended type.
+ New_Account (B_Acct);
+ New_Account (C_Acct);
+ New_Account (IC_Acct);
+
+ if (B_Acct.Current_Balance /= 10_00) or
+ (C_Acct.Current_Balance /= 20_00) or
+ (IC_Acct.Current_Balance /= 30_00)
+ then
+ Report.Failed ("Failed dispatch to multiply overridden prim. oper.");
+ end if;
+
+
+ Annual_Interest (B_Acct);
+ Annual_Interest (C_Acct);
+ Annual_Interest (IC_Acct); -- Check the dispatch to primitive operation
+ -- overridden from a parent type which inherited
+ -- the operation from the root type.
+ if (B_Acct.Current_Balance /= 10_00) or
+ (C_Acct.Current_Balance /= 20_00) or
+ (IC_Acct.Current_Balance /= 90_00)
+ then
+ Report.Failed ("Failed dispatch to overridden primitive operation");
+ end if;
+
+
+ Apply_Service_Charge (Acct => B_Acct);
+ Apply_Service_Charge (Acct => C_Acct);
+ Apply_Service_Charge (Acct => IC_Acct); -- Check the dispatch to a
+ -- primitive operation twice
+ -- inherited from the root
+ -- tagged type.
+ if (B_Acct.Current_Balance /= 5_00) or
+ (C_Acct.Current_Balance /= 15_00) or
+ (IC_Acct.Current_Balance /= 85_00)
+ then
+ Report.Failed ("Failed dispatch to Apply_Service_Charge");
+ end if;
+
+ Report.Result;
+
+end C392008;