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|
-- C380004.A
--
-- Grant of Unlimited Rights
--
-- The Ada Conformity Assessment Authority (ACAA) holds unlimited
-- rights in the software and documentation contained herein. Unlimited
-- rights are the same as those granted by the U.S. Government for older
-- parts of the Ada Conformity Assessment Test Suite, and are defined
-- in DFAR 252.227-7013(a)(19). By making this public release, the ACAA
-- intends to confer upon all recipients unlimited rights equal to those
-- held by the ACAA. 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 ACAA 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 per-object expressions are evaluated as specified for entry
-- families and protected components. (Defect Report 8652/0002,
-- as reflected in Technical Corrigendum 1, RM95 3.6(22/1), 3.8(18/1), and
-- 9.5.2(22/1)).
--
-- CHANGE HISTORY:
-- 9 FEB 2001 PHL Initial version.
-- 29 JUN 2002 RLB Readied for release.
--
--!
with Report;
use Report;
procedure C380004 is
type Rec (D1, D2 : Positive) is
record
null;
end record;
F1_Poe : Integer;
function Chk (Poe : Integer; Value : Integer; Message : String)
return Boolean is
begin
if Poe /= Value then
Failed (Message & ": Poe is " & Integer'Image (Poe));
end if;
return True;
end Chk;
function F1 return Integer is
begin
F1_Poe := F1_Poe - Ident_Int (1);
return F1_Poe;
end F1;
generic
type T is limited private;
with function Is_Ok (X : T;
Param1 : Integer;
Param2 : Integer;
Param3 : Integer) return Boolean;
procedure Check;
procedure Check is
begin
declare
type Poe is new T;
Chk1 : Boolean := Chk (F1_Poe, 17, "F1 evaluated");
X : Poe; -- F1 evaluated
Y : Poe; -- F1 evaluated
Chk2 : Boolean := Chk (F1_Poe, 15, "F1 not evaluated");
begin
if not Is_Ok (T (X), 16, 16, 17) or
not Is_Ok (T (Y), 15, 15, 17) then
Failed ("Discriminant values not correct - 0");
end if;
end;
declare
type Poe is new T;
begin
begin
declare
X : Poe;
begin
if not Is_Ok (T (X), 14, 14, 17) then
Failed ("Discriminant values not correct - 1");
end if;
end;
exception
when others =>
Failed ("Unexpected exception - 1");
end;
declare
type Acc_Poe is access Poe;
X : Acc_Poe;
begin
X := new Poe;
begin
if not Is_Ok (T (X.all), 13, 13, 17) then
Failed ("Discriminant values not correct - 2");
end if;
end;
exception
when others =>
Failed ("Unexpected exception raised - 2");
end;
declare
subtype Spoe is Poe;
X : Spoe;
begin
if not Is_Ok (T (X), 12, 12, 17) then
Failed ("Discriminant values not correct - 3");
end if;
exception
when others =>
Failed ("Unexpected exception raised - 3");
end;
declare
type Arr is array (1 .. 2) of Poe;
X : Arr;
begin
if Is_Ok (T (X (1)), 11, 11, 17) and then
Is_Ok (T (X (2)), 10, 10, 17) then
null;
elsif Is_Ok (T (X (2)), 11, 11, 17) and then
Is_Ok (T (X (1)), 10, 10, 17) then
null;
else
Failed ("Discriminant values not correct - 4");
end if;
exception
when others =>
Failed ("Unexpected exception raised - 4");
end;
declare
type Nrec is
record
C1, C2 : Poe;
end record;
X : Nrec;
begin
if Is_Ok (T (X.C1), 8, 8, 17) and then
Is_Ok (T (X.C2), 9, 9, 17) then
null;
elsif Is_Ok (T (X.C2), 8, 8, 17) and then
Is_Ok (T (X.C1), 9, 9, 17) then
null;
else
Failed ("Discriminant values not correct - 5");
end if;
exception
when others =>
Failed ("Unexpected exception raised - 5");
end;
declare
type Drec is new Poe;
X : Drec;
begin
if not Is_Ok (T (X), 7, 7, 17) then
Failed ("Discriminant values not correct - 6");
end if;
exception
when others =>
Failed ("Unexpected exception raised - 6");
end;
end;
end Check;
begin
Test ("C380004",
"Check evaluation of discriminant expressions " &
"when the constraint depends on a discriminant, " &
"and the discriminants have defaults - discriminant-dependent" &
"entry families and protected components");
Comment ("Discriminant-dependent entry families for task types");
F1_Poe := 18;
declare
task type Poe (D3 : Positive := F1) is
entry E (D3 .. F1); -- F1 evaluated
entry Is_Ok (D3 : Integer;
E_First : Integer;
E_Last : Integer;
Ok : out Boolean);
end Poe;
task body Poe is
begin
loop
select
accept Is_Ok (D3 : Integer;
E_First : Integer;
E_Last : Integer;
Ok : out Boolean) do
declare
Cnt : Natural;
begin
if Poe.D3 = D3 then
-- Can't think of a better way to check the
-- bounds of the entry family.
begin
Cnt := E (E_First)'Count;
Cnt := E (E_Last)'Count;
exception
when Constraint_Error =>
Ok := False;
return;
end;
begin
Cnt := E (E_First - 1)'Count;
Ok := False;
return;
exception
when Constraint_Error =>
null;
when others =>
Ok := False;
return;
end;
begin
Cnt := E (E_Last + 1)'Count;
Ok := False;
return;
exception
when Constraint_Error =>
null;
when others =>
Ok := False;
return;
end;
Ok := True;
else
Ok := False;
return;
end if;
end;
end Is_Ok;
or
terminate;
end select;
end loop;
end Poe;
function Is_Ok
(C : Poe; D3 : Integer; E_First : Integer; E_Last : Integer)
return Boolean is
Ok : Boolean;
begin
C.Is_Ok (D3, E_First, E_Last, Ok);
return Ok;
end Is_Ok;
procedure Chk is new Check (Poe, Is_Ok);
begin
Chk;
end;
Comment ("Discriminant-dependent entry families for protected types");
F1_Poe := 18;
declare
protected type Poe (D3 : Integer := F1) is
entry E (D3 .. F1); -- F1 evaluated
function Is_Ok (D3 : Integer; E_First : Integer; E_Last : Integer)
return Boolean;
end Poe;
protected body Poe is
entry E (for I in D3 .. F1) when True is
begin
null;
end E;
function Is_Ok (D3 : Integer; E_First : Integer; E_Last : Integer)
return Boolean is
Cnt : Natural;
begin
if Poe.D3 = D3 then
-- Can't think of a better way to check the
-- bounds of the entry family.
begin
Cnt := E (E_First)'Count;
Cnt := E (E_Last)'Count;
exception
when Constraint_Error =>
return False;
end;
begin
Cnt := E (E_First - 1)'Count;
return False;
exception
when Constraint_Error =>
null;
when others =>
return False;
end;
begin
Cnt := E (E_Last + 1)'Count;
return False;
exception
when Constraint_Error =>
null;
when others =>
return False;
end;
return True;
else
return False;
end if;
end Is_Ok;
end Poe;
function Is_Ok
(C : Poe; D3 : Integer; E_First : Integer; E_Last : Integer)
return Boolean is
begin
return C.Is_Ok (D3, E_First, E_Last);
end Is_Ok;
procedure Chk is new Check (Poe, Is_Ok);
begin
Chk;
end;
Comment ("Protected components");
F1_Poe := 18;
declare
protected type Poe (D3 : Integer := F1) is
function C1_D1 return Integer;
function C1_D2 return Integer;
private
C1 : Rec (D3, F1); -- F1 evaluated
end Poe;
protected body Poe is
function C1_D1 return Integer is
begin
return C1.D1;
end C1_D1;
function C1_D2 return Integer is
begin
return C1.D2;
end C1_D2;
end Poe;
function Is_Ok (C : Poe; D3 : Integer; C1_D1 : Integer; C1_D2 : Integer)
return Boolean is
begin
return C.D3 = D3 and C.C1_D1 = C1_D1 and C.C1_D2 = C1_D2;
end Is_Ok;
procedure Chk is new Check (Poe, Is_Ok);
begin
Chk;
end;
Result;
exception
when others =>
Failed ("Unexpected exception");
Result;
end C380004;
|
