| -- CDD2A03.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 default Read and Write attributes for a limited type |
| -- extension are created from the parent type's attribute (which may be |
| -- user-defined) and those for the extension components, if the extension |
| -- components are non-limited or have user-defined attributes. Check that |
| -- such limited type extension attributes are callable (Defect Report |
| -- 8652/0040, as reflected in Technical Corrigendum 1, penultimate sentence |
| -- of 13.13.2(9/1) and 13.13.2(36/1)). |
| -- |
| -- CHANGE HISTORY: |
| -- 1 AUG 2001 PHL Initial version. |
| -- 3 DEC 2001 RLB Reformatted for ACATS. |
| -- |
| --! |
| with Ada.Streams; |
| use Ada.Streams; |
| with FDD2A00; |
| use FDD2A00; |
| with Report; |
| use Report; |
| procedure CDD2A03 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 Lim is limited |
| record |
| C : Int; |
| end record; |
| |
| procedure Read (Stream : access Root_Stream_Type'Class; Item : out Lim); |
| procedure Write (Stream : access Root_Stream_Type'Class; Item : Lim); |
| function Input (Stream : access Root_Stream_Type'Class) return Lim; |
| procedure Output (Stream : access Root_Stream_Type'Class; Item : Lim); |
| |
| for Lim'Read use Read; |
| for Lim'Write use Write; |
| for Lim'Input use Input; |
| for Lim'Output use Output; |
| |
| |
| type Parent (D1, D2 : Int; B : Boolean) is tagged limited |
| 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 Lim) is |
| begin |
| Integer'Read (Stream, Integer (Item.C)); |
| end Actual_Read; |
| |
| procedure Actual_Write |
| (Stream : access Root_Stream_Type'Class; Item : Lim) is |
| begin |
| Integer'Write (Stream, Integer (Item.C)); |
| end Actual_Write; |
| |
| function Actual_Input (Stream : access Root_Stream_Type'Class) return Lim is |
| Result : Lim; |
| begin |
| Result.C := Int (Integer'Input (Stream)); |
| return Result; |
| end Actual_Input; |
| |
| procedure Actual_Output |
| (Stream : access Root_Stream_Type'Class; Item : Lim) is |
| begin |
| Integer'Output (Stream, Integer (Item.C)); |
| 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 Lim_Ops is new Counting_Stream_Ops (T => Lim, |
| 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 Lim) |
| renames Lim_Ops.Read; |
| procedure Write (Stream : access Root_Stream_Type'Class; Item : Lim) |
| renames Lim_Ops.Write; |
| function Input (Stream : access Root_Stream_Type'Class) return Lim |
| renames Lim_Ops.Input; |
| procedure Output (Stream : access Root_Stream_Type'Class; Item : Lim) |
| renames Lim_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 : Lim; |
| end record; |
| |
| begin |
| Test ("CDD2A03", |
| "Check that the default Read and Write attributes for a limited " & |
| "type extension are created from the parent type's " & |
| "attribute (which may be user-defined) and those for the " & |
| "extension components, if the extension components are " & |
| "non-limited or have user-defined attributes; check that such " & |
| "limited type extension attributes are callable"); |
| |
| Test1: |
| declare |
| S : aliased My_Stream (1000); |
| X1 : Derived1 (D1 => Int (Ident_Int (2)), |
| D2 => Int (Ident_Int (5)), |
| B => Ident_Bool (True)); |
| 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; |
| end Test1; |
| |
| Test2: |
| declare |
| S : aliased My_Stream (1000); |
| X1 : Derived2 (D => Int (Ident_Int (7))); |
| X2 : Derived2 (D => Int (Ident_Int (7))); |
| begin |
| X1.S := Str (Ident_Str ("g")); |
| X1.C1 := Ident_Int (4); |
| X1.C3.C := Int (Ident_Int (666)); |
| |
| Derived2'Write (S'Access, X1); |
| if Lim_Ops.Get_Counts /= |
| (Read => 0, Write => 1, 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; |
| |
| Derived2'Read (S'Access, X2); |
| if Lim_Ops.Get_Counts /= |
| (Read => 1, Write => 1, 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; |
| end Test2; |
| |
| Result; |
| end CDD2A03; |
