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|
-- CDD2A01.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 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 Read and Write attributes for a type extension are created
-- from the parent type's attribute (which may be user-defined) and those
-- for the extension components. Also check that the default Input and
-- Output attributes are used for a type extension, even if the parent
-- type's attribute is user-defined. (Defect Report 8652/0040,
-- as reflected in Technical Corrigendum 1, penultimate sentence of
-- 13.13.2(9/1) and 13.13.2(25/1)).
--
-- CHANGE HISTORY:
-- 30 JUL 2001 PHL Initial version.
-- 5 DEC 2001 RLB Reformatted for ACATS.
--
--!
with Ada.Streams;
use Ada.Streams;
with FDD2A00;
use FDD2A00;
with Report;
use Report;
procedure CDD2A01 is
Input_Output_Error : exception;
type Int is range 1 .. 1000;
type Str is array (Int range <>) of Character;
procedure Read (Stream : access Root_Stream_Type'Class;
Item : out Int'Base);
procedure Write (Stream : access Root_Stream_Type'Class; Item : Int'Base);
function Input (Stream : access Root_Stream_Type'Class) return Int'Base;
procedure Output (Stream : access Root_Stream_Type'Class; Item : Int'Base);
for Int'Read use Read;
for Int'Write use Write;
for Int'Input use Input;
for Int'Output use Output;
type Parent (D1, D2 : Int; B : Boolean) is tagged
record
S : Str (D1 .. D2);
case B is
when False =>
C1 : Integer;
when True =>
C2 : Float;
end case;
end record;
procedure Read (Stream : access Root_Stream_Type'Class; Item : out Parent);
procedure Write (Stream : access Root_Stream_Type'Class; Item : Parent);
function Input (Stream : access Root_Stream_Type'Class) return Parent;
procedure Output (Stream : access Root_Stream_Type'Class; Item : Parent);
for Parent'Read use Read;
for Parent'Write use Write;
for Parent'Input use Input;
for Parent'Output use Output;
procedure Actual_Read
(Stream : access Root_Stream_Type'Class; Item : out Int) is
begin
Integer'Read (Stream, Integer (Item));
end Actual_Read;
procedure Actual_Write
(Stream : access Root_Stream_Type'Class; Item : Int) is
begin
Integer'Write (Stream, Integer (Item));
end Actual_Write;
function Actual_Input (Stream : access Root_Stream_Type'Class) return Int is
begin
return Int (Integer'Input (Stream));
end Actual_Input;
procedure Actual_Output
(Stream : access Root_Stream_Type'Class; Item : Int) is
begin
Integer'Output (Stream, Integer (Item));
end Actual_Output;
procedure Actual_Read
(Stream : access Root_Stream_Type'Class; Item : out Parent) is
begin
case Item.B is
when False =>
Item.C1 := 7;
when True =>
Float'Read (Stream, Item.C2);
end case;
Str'Read (Stream, Item.S);
end Actual_Read;
procedure Actual_Write
(Stream : access Root_Stream_Type'Class; Item : Parent) is
begin
case Item.B is
when False =>
null; -- Don't write C1
when True =>
Float'Write (Stream, Item.C2);
end case;
Str'Write (Stream, Item.S);
end Actual_Write;
function Actual_Input
(Stream : access Root_Stream_Type'Class) return Parent is
X : Parent (1, 1, True);
begin
raise Input_Output_Error;
return X;
end Actual_Input;
procedure Actual_Output
(Stream : access Root_Stream_Type'Class; Item : Parent) is
begin
raise Input_Output_Error;
end Actual_Output;
package Int_Ops is new Counting_Stream_Ops (T => Int'Base,
Actual_Write => Actual_Write,
Actual_Input => Actual_Input,
Actual_Read => Actual_Read,
Actual_Output => Actual_Output);
package Parent_Ops is
new Counting_Stream_Ops (T => Parent,
Actual_Write => Actual_Write,
Actual_Input => Actual_Input,
Actual_Read => Actual_Read,
Actual_Output => Actual_Output);
procedure Read (Stream : access Root_Stream_Type'Class; Item : out Int'Base)
renames Int_Ops.Read;
procedure Write (Stream : access Root_Stream_Type'Class; Item : Int'Base)
renames Int_Ops.Write;
function Input (Stream : access Root_Stream_Type'Class) return Int'Base
renames Int_Ops.Input;
procedure Output (Stream : access Root_Stream_Type'Class; Item : Int'Base)
renames Int_Ops.Output;
procedure Read (Stream : access Root_Stream_Type'Class; Item : out Parent)
renames Parent_Ops.Read;
procedure Write (Stream : access Root_Stream_Type'Class; Item : Parent)
renames Parent_Ops.Write;
function Input (Stream : access Root_Stream_Type'Class) return Parent
renames Parent_Ops.Input;
procedure Output (Stream : access Root_Stream_Type'Class; Item : Parent)
renames Parent_Ops.Output;
type Derived1 is new Parent with
record
C3 : Int;
end record;
type Derived2 (D : Int) is new Parent (D1 => D,
D2 => D,
B => False) with
record
C3 : Int;
end record;
begin
Test ("CDD2A01",
"Check that the Read and Write attributes for a type " &
"extension are created from the parent type's " &
"attribute (which may be user-defined) and those for the " &
"extension components; also check that the default input " &
"and output attributes are used for a type extension, even " &
"if the parent type's attribute is user-defined");
Test1:
declare
S : aliased My_Stream (1000);
X1 : Derived1 (D1 => Int (Ident_Int (2)),
D2 => Int (Ident_Int (5)),
B => Ident_Bool (True));
Y1 : Derived1 := (D1 => 3,
D2 => 6,
B => False,
S => Str (Ident_Str ("3456")),
C1 => Ident_Int (100),
C3 => Int (Ident_Int (88)));
X2 : Derived1 (D1 => Int (Ident_Int (2)),
D2 => Int (Ident_Int (5)),
B => Ident_Bool (True));
begin
X1.S := Str (Ident_Str ("bcde"));
X1.C2 := Float (Ident_Int (4));
X1.C3 := Int (Ident_Int (99));
Derived1'Write (S'Access, X1);
if Int_Ops.Get_Counts /=
(Read => 0, Write => 1, Input => 0, Output => 0) then
Failed ("Error writing extension components - 1");
end if;
if Parent_Ops.Get_Counts /=
(Read => 0, Write => 1, Input => 0, Output => 0) then
Failed ("Didn't call parent type's Write - 1");
end if;
Derived1'Read (S'Access, X2);
if Int_Ops.Get_Counts /=
(Read => 1, Write => 1, Input => 0, Output => 0) then
Failed ("Error reading extension components - 1");
end if;
if Parent_Ops.Get_Counts /=
(Read => 1, Write => 1, Input => 0, Output => 0) then
Failed ("Didn't call inherited Read - 1");
end if;
if X2 /= (D1 => 2,
D2 => 5,
B => True,
S => Str (Ident_Str ("bcde")),
C2 => Float (Ident_Int (4)),
C3 => Int (Ident_Int (99))) then
Failed
("Inherited Read and Write are not inverses of each other - 1");
end if;
begin
Derived1'Output (S'Access, Y1);
if Int_Ops.Get_Counts /=
(Read => 1, Write => 4, Input => 0, Output => 0) then
Failed ("Error writing extension components - 2");
end if;
if Parent_Ops.Get_Counts /=
(Read => 1, Write => 2, Input => 0, Output => 0) then
Failed ("Didn't call inherited Write - 2");
end if;
exception
when Input_Output_Error =>
Failed ("Did call inherited Output - 2");
end;
begin
declare
Y2 : Derived1 := Derived1'Input (S'Access);
begin
if Int_Ops.Get_Counts /=
(Read => 4, Write => 4, Input => 0, Output => 0) then
Failed ("Error reading extension components - 2");
end if;
if Parent_Ops.Get_Counts /=
(Read => 2, Write => 2, Input => 0, Output => 0) then
Failed ("Didn't call inherited Read - 2");
end if;
if Y2 /= (D1 => 3,
D2 => 6,
B => False,
S => Str (Ident_Str ("3456")),
C1 => Ident_Int (7),
C3 => Int (Ident_Int (88))) then
Failed
("Input and Output are not inverses of each other - 2");
end if;
end;
exception
when Input_Output_Error =>
Failed ("Did call inherited Input - 2");
end;
end Test1;
Test2:
declare
S : aliased My_Stream (1000);
X1 : Derived2 (D => Int (Ident_Int (7)));
Y1 : Derived2 := (D => 8,
S => Str (Ident_Str ("8")),
C1 => Ident_Int (200),
C3 => Int (Ident_Int (77)));
X2 : Derived2 (D => Int (Ident_Int (7)));
begin
X1.S := Str (Ident_Str ("g"));
X1.C1 := Ident_Int (4);
X1.C3 := Int (Ident_Int (666));
Derived2'Write (S'Access, X1);
if Int_Ops.Get_Counts /=
(Read => 4, Write => 5, Input => 0, Output => 0) then
Failed ("Error writing extension components - 3");
end if;
if Parent_Ops.Get_Counts /=
(Read => 2, Write => 3, Input => 0, Output => 0) then
Failed ("Didn't call inherited Write - 3");
end if;
Derived2'Read (S'Access, X2);
if Int_Ops.Get_Counts /=
(Read => 5, Write => 5, Input => 0, Output => 0) then
Failed ("Error reading extension components - 3");
end if;
if Parent_Ops.Get_Counts /=
(Read => 3, Write => 3, Input => 0, Output => 0) then
Failed ("Didn't call inherited Read - 3");
end if;
if X2 /= (D => 7,
S => Str (Ident_Str ("g")),
C1 => Ident_Int (7),
C3 => Int (Ident_Int (666))) then
Failed ("Read and Write are not inverses of each other - 3");
end if;
begin
Derived2'Output (S'Access, Y1);
if Int_Ops.Get_Counts /=
(Read => 5, Write => 7, Input => 0, Output => 0) then
Failed ("Error writing extension components - 4");
end if;
if Parent_Ops.Get_Counts /=
(Read => 3, Write => 4, Input => 0, Output => 0) then
Failed ("Didn't call inherited Write - 4");
end if;
exception
when Input_Output_Error =>
Failed ("Did call inherited Output - 4");
end;
begin
declare
Y2 : Derived2 := Derived2'Input (S'Access);
begin
if Int_Ops.Get_Counts /=
(Read => 7, Write => 7, Input => 0, Output => 0) then
Failed ("Error reading extension components - 4");
end if;
if Parent_Ops.Get_Counts /=
(Read => 4, Write => 4, Input => 0, Output => 0) then
Failed ("Didn't call inherited Read - 4");
end if;
if Y2 /= (D => 8,
S => Str (Ident_Str ("8")),
C1 => Ident_Int (7),
C3 => Int (Ident_Int (77))) then
Failed
("Input and Output are not inverses of each other - 4");
end if;
end;
exception
when Input_Output_Error =>
Failed ("Did call inherited Input - 4");
end;
end Test2;
Result;
end CDD2A01;
|
