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|
-- C371002.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 if a discriminant constraint depends on a discriminant,
-- the evaluation of the expressions in the constraint is deferred until
-- an object of the subtype is created. Check for cases of records.
--
-- TEST DESCRIPTION:
-- This transition test defines record types with discriminant components
-- which depend on the discriminants. The discriminants are calculated
-- by function calls. The test verifies that Constraint_Error is raised
-- during the object creations when values of discriminants are
-- incompatible with the subtypes.
--
-- Inspired by C37213A.ADA, C37213C.ADA, C37215A.ADA and C37215C.ADA.
--
--
-- CHANGE HISTORY:
-- 05 Apr 96 SAIC Initial version for ACVC 2.1.
--
--!
with Report;
procedure C371002 is
subtype Small_Int is Integer range 1..10;
type Rec_W_Disc (Disc1, Disc2 : Small_Int) is
record
Str1 : String (1 .. Disc1) := (others => '*');
Str2 : String (1 .. Disc2) := (others => '*');
end record;
type My_Array is array (Small_Int range <>) of Integer;
Func1_Cons : Integer := 0;
---------------------------------------------------------
function Chk (Cons : Integer;
Value : Integer;
Message : String) return Boolean is
begin
if Cons /= Value then
Report.Failed (Message & ": Func1_Cons is " &
Integer'Image(Func1_Cons));
end if;
return True;
end Chk;
---------------------------------------------------------
function Func1 return Integer is
begin
Func1_Cons := Func1_Cons + Report.Ident_Int(1);
return Func1_Cons;
end Func1;
begin
Report.Test ("C371002", "Check that if a discriminant constraint " &
"depends on a discriminant, the evaluation of the " &
"expressions in the constraint is deferred until " &
"object declarations");
---------------------------------------------------------
declare
type Rec1 (D3 : Integer) is
record
C1 : Rec_W_Disc (D3, Func1); -- Func1 evaluated, value 1.
end record;
Chk1 : Boolean := Chk (Func1_Cons, 1,
"Func1 not evaluated for Rec1");
Obj1 : Rec1 (1); -- Func1 not evaluated again.
Obj2 : Rec1 (2); -- Func1 not evaluated again.
Chk2 : Boolean := Chk (Func1_Cons, 1,
"Func1 evaluated too many times");
begin
if Obj1 /= (D3 => 1,
C1 => (Disc1 => 1,
Disc2 => 1,
Str1 => (others => '*'),
Str2 => (others => '*'))) or
Obj2 /= (D3 => 2,
C1 => (Disc1 => 2,
Disc2 => 1,
Str1 => (others => '*'),
Str2 => (others => '*'))) then
Report.Failed ("Obj1 & Obj2 - Discriminant values not correct");
end if;
end;
---------------------------------------------------------
Func1_Cons := -11;
declare
type Rec_Of_Rec_01 (D3 : Integer) is
record
C1 : Rec_W_Disc (D3, Func1); -- Func1 evaluated, value -10.
end record; -- Constraint_Error not raised.
type Rec_Of_MyArr_01 (D3 : Integer) is
record
C1 : My_Array (Func1 .. D3); -- Func1 evaluated, value -9.
end record; -- Constraint_Error not raised.
type Rec_Of_Rec_02 (D3 : Integer) is
record
C1 : Rec_W_Disc (D3, 1);
end record;
type Rec_Of_MyArr_02 (D3 : Integer) is
record
C1 : My_Array (D3 .. 1);
end record;
begin
---------------------------------------------------------
begin
declare
Obj3 : Rec_Of_Rec_01(1); -- Constraint_Error raised.
begin
Report.Failed ("Obj3 - Constraint_Error should be raised");
if Obj3 /= (1, (1, 1, others => (others => '*'))) then
Report.Comment ("Obj3 - Shouldn't get here");
end if;
end;
exception
when Constraint_Error => -- Exception expected.
null;
when others =>
Report.Failed ("Obj3 - others exception raised");
end;
---------------------------------------------------------
begin
declare
subtype Subtype_Rec is Rec_Of_Rec_01(1);
-- No Constraint_Error raised.
begin
declare
Obj4 : Subtype_Rec; -- Constraint_Error raised.
begin
Report.Failed ("Obj4 - Constraint_Error should be raised");
if Obj4 /= (D3 => 1,
C1 => (Disc1 => 1,
Disc2 => 1,
Str1 => (others => '*'),
Str2 => (others => '*'))) then
Report.Comment ("Obj4 - Shouldn't get here");
end if;
end;
exception
when Constraint_Error => -- Exception expected.
null;
when others =>
Report.Failed ("Obj4 - others exception raised");
end;
exception
when Constraint_Error =>
Report.Failed ("Subtype_Rec - Constraint_Error raised");
when others =>
Report.Failed ("Subtype_Rec - others exception raised");
end;
---------------------------------------------------------
begin
declare
type Arr is array (1..5) -- No Constraint_Error raised.
of Rec_Of_Rec_01(1);
begin
declare
Obj5 : Arr; -- Constraint_Error raised.
begin
Report.Failed ("Obj5 - Constraint_Error should be raised");
if Obj5 /= (1..5 => (1, (1, 1, others => (others => '*')))) then
Report.Comment ("Obj5 - Shouldn't get here");
end if;
end;
exception
when Constraint_Error => -- Exception expected.
null;
when others =>
Report.Failed ("Obj5 - others exception raised");
end;
exception
when Constraint_Error =>
Report.Failed ("Arr - Constraint_Error raised");
when others =>
Report.Failed ("Arr - others exception raised");
end;
---------------------------------------------------------
begin
declare
type Rec_Of_Rec_Of_MyArr is
record
C1 : Rec_Of_MyArr_01(1); -- No Constraint_Error raised.
end record;
begin
declare
Obj6 : Rec_Of_Rec_Of_MyArr; -- Constraint_Error raised.
begin
Report.Failed ("Obj6 - Constraint_Error should be raised");
if Obj6 /= (C1 => (1, (1, 1))) then
Report.Comment ("Obj6 - Shouldn't get here");
end if;
end;
exception
when Constraint_Error => -- Exception expected.
null;
when others =>
Report.Failed ("Obj6 - others exception raised");
end;
exception
when Constraint_Error =>
Report.Failed ("Rec_Of_Rec_Of_MyArr - Constraint_Error raised");
when others =>
Report.Failed ("Rec_Of_Rec_Of_MyArr - others exception raised");
end;
---------------------------------------------------------
begin
declare
type New_Rec is
new Rec_Of_MyArr_01(1); -- No Constraint_Error raised.
begin
declare
Obj7 : New_Rec; -- Constraint_Error raised.
begin
Report.Failed ("Obj7 - Constraint_Error should be raised");
if Obj7 /= (1, (1, 1)) then
Report.Comment ("Obj7 - Shouldn't get here");
end if;
end;
exception
when Constraint_Error => -- Exception expected.
null;
when others =>
Report.Failed ("Obj7 - others exception raised");
end;
exception
when Constraint_Error =>
Report.Failed ("New_Rec - Constraint_Error raised");
when others =>
Report.Failed ("New_Rec - others exception raised");
end;
---------------------------------------------------------
begin
declare
type Acc_Rec is
access Rec_Of_Rec_02 (Report.Ident_Int(0));
-- No Constraint_Error raised.
begin
declare
Obj8 : Acc_Rec; -- No Constraint_Error raised.
begin
Obj8 := new Rec_Of_Rec_02 (Report.Ident_Int(0));
-- Constraint_Error raised.
Report.Failed ("Obj8 - Constraint_Error should be raised");
if Obj8.all /= (D3 => 1,
C1 => (Disc1 => 1,
Disc2 => 1,
Str1 => (others => '*'),
Str2 => (others => '*'))) then
Report.Comment ("Obj8 - Shouldn't get here");
end if;
end;
exception
when Constraint_Error => -- Exception expected.
null;
when others =>
Report.Failed ("Obj8 - others exception raised");
end;
exception
when Constraint_Error =>
Report.Failed ("Acc_Rec - Constraint_Error raised");
when others =>
Report.Failed ("Acc_Rec - others exception raised");
end;
---------------------------------------------------------
begin
declare
type Acc_Rec_MyArr is access
Rec_Of_MyArr_02; -- No Constraint_Error
-- raised for either
Obj9 : Acc_Rec_MyArr; -- declaration.
begin
Obj9 := new Rec_Of_MyArr_02 (Report.Ident_Int(0));
-- Constraint_Error raised.
Report.Failed ("Obj9 - Constraint_Error should be raised");
if Obj9.all /= (1, (1, 1)) then
Report.Comment ("Obj9 - Shouldn't get here");
end if;
exception
when Constraint_Error => -- Exception expected.
null;
when others =>
Report.Failed ("Obj9 - others exception raised");
end;
exception
when Constraint_Error =>
Report.Failed ("Acc_Rec_MyArr - Constraint_Error raised");
when others =>
Report.Failed ("Acc_Rec_MyArr - others exception raised");
end;
end;
Report.Result;
exception
when others =>
Report.Failed ("Discriminant value checked too soon");
Report.Result;
end C371002;
|
