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-- C851002.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.
--
-- Notice
--
-- The ACAA has created and maintains the Ada Conformity Assessment Test
-- Suite for the purpose of conformity assessments conducted in accordance
-- with the International Standard ISO/IEC 18009 - Ada: Conformity
-- assessment of a language processor. This test suite should not be used
-- to make claims of conformance unless used in accordance with
-- ISO/IEC 18009 and any applicable ACAA procedures.
--*
-- OBJECTIVE:
-- For an object renaming with an anonymous access type, check that the
-- name is resolved if there is only one interpretation with a correct
-- anonymous access type, even if other interpretations exist.
--
-- TEST DESCRIPTION:
-- The test defines a number of record types with identically named
-- components and various overloaded accessor functions. This models
-- all of these record types being placed into containers in the
-- same package. We then try to rename various components, and
-- verify that that succeeds.
--
-- The rule tested by this test was confirmed by AI05-0105-1, in
-- particular the case represented by type Not_Right_3. Note
-- that since it is impossible to qualify an anonymous access type,
-- renames like these are an important way to disambiguate overloaded
-- calls.
--
-- CHANGE HISTORY:
-- 21 Jul 2008 RLB Created test.
--
package C851002_A is
Aux : aliased Integer := 99;
function Double (X : Float) return Float;
type Expected is record -- This is the type we expect to resolve to.
Comp1 : access Integer := Aux'Access;
Comp2 : access function (X : Float) return Float := Double'Access;
-- Other (differently named) components in a real type.
end record;
function Element1 (Cursor : Natural) return Expected;
function Element2 (Cursor : Natural) return Expected;
function Element3 (Cursor : Natural) return Expected;
type Not_Right_1 is record -- This is a type with components with completely
-- different types.
Comp1 : Float := 92.0;
Comp2 : String(1..5) := "12345";
-- Other (differently named) components in a real type.
end record;
function Element1 (Cursor : Natural) return Not_Right_1;
type Not_Right_2 is record -- This is a type with components with access
-- types with the wrong designated type/profile.
Comp1 : access Float;
Comp2 : access function return Natural;
-- Other (differently named) components in a real type.
end record;
function Element2 (Cursor : Natural) return Not_Right_2;
type Int_Ptr is access all Integer;
type Func_Ptr is access function (X : Float) return Float;
type Not_Right_3 is record -- This is a type with components with named
-- access types with the correct characteristics.
Comp1 : Int_Ptr := Aux'Access;
Comp2 : Func_Ptr := Double'Access;
-- Other (differently named) components in a real type.
end record;
function Element3 (Cursor : Natural) return Not_Right_3;
end C851002_A;
with Report;
package body C851002_A is
Auxf : aliased Float := 4.0;
function Double (X : Float) return Float is
begin
return X * 2.0;
end Double;
function Element1 (Cursor : Natural) return Expected is
begin
return (others => <>);
end Element1;
function Element2 (Cursor : Natural) return Expected is
begin
return (others => <>);
end Element2;
function Element3 (Cursor : Natural) return Expected is
begin
return (others => <>);
end Element3;
function Element1 (Cursor : Natural) return Not_Right_1 is
begin
Report.Failed ("Wrong Element1 routine called -" & Natural'Image(Cursor));
return (others => <>);
end Element1;
function Element2 (Cursor : Natural) return Not_Right_2 is
begin
Report.Failed ("Wrong Element2 routine called -" & Natural'Image(Cursor));
return (others => <>);
end Element2;
function Element3 (Cursor : Natural) return Not_Right_3 is
begin
Report.Failed ("Wrong Element3 routine called -" & Natural'Image(Cursor));
return (others => <>);
end Element3;
end C851002_A;
with Report;
with C851002_A; use C851002_A;
procedure C851002 is
procedure Use_It_1 (Obj : access Integer) is
-- Use Obj so that the compiler cannot remove the actual from
-- the program as a dead object.
begin
if Obj = null then
null;
elsif not Report.Equal (Obj.all, Obj.all) then
Report.Comment ("Don't optimize Obj");
end if;
end Use_It_1;
procedure Use_It_2 (Obj : access function (X : Float) return Float) is
-- Use Obj so that the compiler cannot remove the actual from
-- the program as a dead object.
begin
if Obj = null then
null;
elsif Report.Equal (Integer(Obj(2.0)), 0) then
Report.Comment ("Don't optimize Obj");
end if;
end Use_It_2;
begin
Report.Test ("C851002", "For an object renaming with an anonymous " &
"access type, check that the name is resolved " &
"if there is only one interpretation with a " &
"correct anonymous access type, even if other " &
"interpretations exist");
declare
Ren1 : access Integer renames Element1(1).Comp1;
begin
if Ren1.all /= C851002_A.Aux then
Report.Failed ("Wrong value (1)");
end if;
Use_It_1 (Ren1);
end;
declare
Ren2 : access function (X : Float) return Float renames Element1(2).Comp2;
begin
if Ren2.all(2.0) /= 4.0 then
Report.Failed ("Wrong value (2)");
end if;
Use_It_2 (Ren2);
end;
declare
Ren3 : access Integer renames Element2(3).Comp1;
begin
if Ren3.all /= C851002_A.Aux then
Report.Failed ("Wrong value (3)");
end if;
Use_It_1 (Ren3);
end;
declare
Ren4 : access function (X : Float) return Float renames Element2(4).Comp2;
begin
if Ren4.all(2.0) /= 4.0 then
Report.Failed ("Wrong value (4)");
end if;
Use_It_2 (Ren4);
end;
declare
Ren5 : access Integer renames Element3(5).Comp1;
begin
if Ren5.all /= C851002_A.Aux then
Report.Failed ("Wrong value (5)");
end if;
Use_It_1 (Ren5);
end;
declare
Ren6 : access function (X : Float) return Float renames Element3(6).Comp2;
begin
if Ren6.all(2.0) /= 4.0 then
Report.Failed ("Wrong value (6)");
end if;
Use_It_2 (Ren6);
end;
Report.Result;
end C851002;
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