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|
-- C371003.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 where the component containing the constraint is present
-- in the subtype.
--
-- 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. Also check for cases, where the
-- component is absent.
--
-- Inspired by C37213E.ADA, C37213G.ADA, C37215E.ADA, and C37215G.ADA.
--
--
-- CHANGE HISTORY:
-- 10 Apr 96 SAIC Initial version for ACVC 2.1.
-- 14 Jul 96 SAIC Modified test description. Added exception handler
-- for VObj_10 assignment.
-- 26 Oct 96 SAIC Added LM references.
--
--!
with Report;
procedure C371003 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 ("C371003", "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 VRec_01 (D3 : Integer) is
record
case D3 is
when -5..10 =>
C1 : Rec_W_Disc (D3, Func1); -- Func1 evaluated, value 1.
when others =>
C2 : Integer := Report.Ident_Int(0);
end case;
end record;
Chk1 : Boolean := Chk (Func1_Cons, 1,
"Func1 not evaluated for VRec_01");
VObj_1 : VRec_01(1); -- Func1 not evaluated again
VObj_2 : VRec_01(2); -- Func1 not evaluated again
Chk2 : Boolean := Chk (Func1_Cons, 1,
"Func1 evaluated too many times");
begin
if VObj_1 /= (D3 => 1,
C1 => (Disc1 => 1,
Disc2 => 1,
Str1 => (others => '*'),
Str2 => (others => '*'))) or
VObj_2 /= (D3 => 2,
C1 => (Disc1 => 2,
Disc2 => 1,
Str1 => (others => '*'),
Str2 => (others => '*'))) then
Report.Failed ("VObj_1 & VObj_2 - Discriminant values not correct");
end if;
end;
---------------------------------------------------------
Func1_Cons := -11;
declare
type VRec_Of_VRec_01 (D3 : Integer) is
record
case D3 is
when -5..10 =>
C1 : Rec_W_Disc (Func1, D3); -- Func1 evaluated, value -10.
when others => -- Constraint_Error not raised.
C2 : Integer := Report.Ident_Int(0);
end case;
end record;
type VRec_Of_VRec_02 (D3 : Integer) is
record
case D3 is
when -5..10 =>
C1 : Rec_W_Disc (1, D3);
when others =>
C2 : Integer := Report.Ident_Int(0);
end case;
end record;
type VRec_Of_MyArr_01 (D3 : Integer) is
record
case D3 is
when -5..10 =>
C1 : My_Array (Func1..D3); -- Func1 evaluated, value -9.
when others => -- Constraint_Error not raised.
C2 : Integer := Report.Ident_Int(0);
end case;
end record;
type VRec_Of_MyArr_02 (D3 : Integer) is
record
case D3 is
when -5..10 =>
C1 : My_Array (D3..1);
when others =>
C2 : Integer := Report.Ident_Int(0);
end case;
end record;
begin
---------------------------------------------------------
-- Component containing the constraint is present.
begin
declare
VObj_3 : VRec_Of_VRec_01(1); -- Constraint_Error raised.
begin
Report.Failed ("VObj_3 - Constraint_Error should be raised");
if VObj_3 /= (1, (1, 1, others => (others => '*'))) then
Report.Comment ("VObj_3 - Shouldn't get here");
end if;
end;
exception
when Constraint_Error => -- Exception expected.
null;
when others =>
Report.Failed ("VObj_3 - unexpected exception raised");
end;
---------------------------------------------------------
-- Component containing the constraint is present.
begin
declare
subtype Subtype_VRec is -- No Constraint_Error raised.
VRec_Of_VRec_01(Report.Ident_Int(1));
begin
declare
VObj_4 : Subtype_VRec; -- Constraint_Error raised.
begin
Report.Failed ("VObj_4 - Constraint_Error should be raised");
if VObj_4 /= (D3 => 1,
C1 => (Disc1 => 1,
Disc2 => 1,
Str1 => (others => '*'),
Str2 => (others => '*'))) then
Report.Comment ("VObj_4 - Shouldn't get here");
end if;
end;
exception
when Constraint_Error => -- Exception expected.
null;
when others =>
Report.Failed ("VObj_4 - unexpected exception raised");
end;
exception
when Constraint_Error =>
Report.Failed ("Subtype_VRec - Constraint_Error raised");
when others =>
Report.Failed ("Subtype_VRec - unexpected exception raised");
end;
---------------------------------------------------------
-- Component containing the constraint is absent.
begin
declare
type Arr is array (1..5) of
VRec_Of_VRec_01(Report.Ident_Int(-6)); -- No Constraint_Error
VObj_5 : Arr; -- for either declaration.
begin
if VObj_5 /= (1 .. 5 => (-6, 0)) then
Report.Comment ("VObj_5 - wrong values");
end if;
end;
exception
when others =>
Report.Failed ("Arr - unexpected exception raised");
end;
---------------------------------------------------------
-- Component containing the constraint is present.
begin
declare
type Rec_Of_Rec_Of_MyArr is
record
C1 : VRec_Of_MyArr_01(1); -- No Constraint_Error raised.
end record;
begin
declare
Obj_6 : Rec_Of_Rec_Of_MyArr; -- Constraint_Error raised.
begin
Report.Failed ("Obj_6 - Constraint_Error should be raised");
if Obj_6 /= (C1 => (1, (1, 1))) then
Report.Comment ("Obj_6 - Shouldn't get here");
end if;
end;
exception
when Constraint_Error => -- Exception expected.
null;
when others =>
Report.Failed ("Obj_6 - unexpected 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 - unexpected exception " &
"raised");
end;
---------------------------------------------------------
-- Component containing the constraint is absent.
begin
declare
type New_VRec_Arr is
new VRec_Of_MyArr_01(11); -- No Constraint_Error raised
Obj_7 : New_VRec_Arr; -- for either declaration.
begin
if Obj_7 /= (11, 0) then
Report.Failed ("Obj_7 - value incorrect");
end if;
end;
exception
when others =>
Report.Failed ("New_VRec_Arr - unexpected exception raised");
end;
---------------------------------------------------------
-- Component containing the constraint is present.
begin
declare
type New_VRec is new
VRec_Of_VRec_02(Report.Ident_Int(0)); -- No Constraint_Error
-- raised.
begin
declare
VObj_8 : New_VRec; -- Constraint_Error raised.
begin
Report.Failed ("VObj_8 - Constraint_Error should be raised");
if VObj_8 /= (1, (1, 1, others => (others => '*'))) then
Report.Comment ("VObj_8 - Shouldn't get here");
end if;
end;
exception
when Constraint_Error => -- Exception expected.
null;
when others =>
Report.Failed ("VObj_8 - unexpected exception raised");
end;
exception
when Constraint_Error =>
Report.Failed ("New_VRec - Constraint_Error raised");
when others =>
Report.Failed ("New_VRec - unexpected exception raised");
end;
---------------------------------------------------------
-- Component containing the constraint is absent.
begin
declare
subtype Sub_VRec is
VRec_Of_VRec_02(Report.Ident_Int(11)); -- No Constraint_Error
VObj_9 : Sub_VRec; -- raised for either
-- declaration.
begin
if VObj_9 /= (11, 0) then
Report.Comment ("VObj_9 - wrong values");
end if;
end;
exception
when others =>
Report.Failed ("Sub_VRec - unexpected exception raised");
end;
---------------------------------------------------------
-- Component containing the constraint is present.
begin
declare
type Acc_VRec_01 is access
VRec_Of_VRec_02(Report.Ident_Int(0)); -- No Constraint_Error
-- raised.
begin
declare
VObj_10 : Acc_VRec_01; -- No Constraint_Error
-- raised.
begin
VObj_10 := new VRec_Of_VRec_02
(Report.Ident_Int(0)); -- Constraint_Error
-- raised.
Report.Failed ("VObj_10 - Constraint_Error should be raised");
if VObj_10.all /= (1, (1, 1, others => (others => '*'))) then
Report.Comment ("VObj_10 - Shouldn't get here");
end if;
exception
when Constraint_Error => -- Exception expected.
null;
when others =>
Report.Failed ("VObj_10 - unexpected exception raised");
end;
exception
when Constraint_Error =>
Report.Failed ("VObj_10 - Constraint_Error exception raised");
when others =>
Report.Failed ("VObj_10 - unexpected exception raised at " &
"declaration");
end;
exception
when Constraint_Error =>
Report.Failed ("Acc_VRec_01 - Constraint_Error raised");
when others =>
Report.Failed ("Acc_VRec_01 - unexpected exception raised");
end;
---------------------------------------------------------
-- Component containing the constraint is absent.
begin
declare
type Acc_VRec_02 is access
VRec_Of_VRec_02(11); -- No Constraint_Error
-- raised for either
VObj_11 : Acc_VRec_02; -- declaration.
begin
VObj_11 := new VRec_Of_VRec_02(11);
if VObj_11.all /= (11, 0) then
Report.Comment ("VObj_11 - wrong values");
end if;
end;
exception
when others =>
Report.Failed ("Acc_VRec_02 - unexpected exception raised");
end;
---------------------------------------------------------
-- Component containing the constraint is present.
begin
declare
type Acc_VRec_03 is access
VRec_Of_MyArr_02; -- No Constraint_Error
-- raised for either
VObj_12 : Acc_VRec_03; -- declaration.
begin
VObj_12 := new VRec_Of_MyArr_02
(Report.Ident_Int(0)); -- Constraint_Error raised.
Report.Failed ("VObj_12 - Constraint_Error should be raised");
if VObj_12.all /= (1, (1, 1)) then
Report.Comment ("VObj_12 - Shouldn't get here");
end if;
exception
when Constraint_Error => -- Exception expected.
null;
when others =>
Report.Failed ("VObj_12 - unexpected exception raised");
end;
exception
when Constraint_Error =>
Report.Failed ("Acc_VRec_03 - Constraint_Error raised");
when others =>
Report.Failed ("Acc_VRec_03 - unexpected exception raised");
end;
---------------------------------------------------------
-- Component containing the constraint is absent.
begin
declare
type Acc_VRec_04 is access
VRec_Of_MyArr_02(11); -- No Constraint_Error
-- raised for either
VObj_13 : Acc_VRec_04; -- declaration.
begin
VObj_13 := new VRec_Of_MyArr_02(11);
if VObj_13.all /= (11, 0) then
Report.Comment ("VObj_13 - wrong values");
end if;
end;
exception
when others =>
Report.Failed ("Acc_VRec_04 - unexpected exception raised");
end;
end;
Report.Result;
exception
when others =>
Report.Failed ("Discriminant value checked too soon");
Report.Result;
end C371003;
|
