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elsif Source_Instance.all'Tag = Associative_Side then
Navigate (
From => Source_Instance,
Class => Class,
To => Temp_Instance);
if Temp_Instance /= null then
Root_Object.Object_List.Insert (
New_Item => Temp_Instance,
On_To => To );
end if;
--
end if;
Temp_Node := Root_Object.Object_List.Next_Entry_Of (From);
end loop;
end Navigate;
-----------------------------------------------------------------------
procedure Navigate (
From : in Root_Object.Object_Access;
Class : in Ada.Tags.Tag;
To : out Root_Object.Object_Access) is
--
-- navigate from a single to a single
-- valid for:
-- A -> M
-- A -> S
-- M -> S
-- M -> A
--
Temp_Single: Root_Object.Object_Access;
Temp_Associative: Root_Object.Object_Access;
Temp_Multiple: Root_Object.Object_Access;
Found: Boolean;
begin
-- PILOT_0000_1422
-- Defaulting the return parameter ensures that if an attempt
-- is made to navigate this type of one to many associative
-- without having linked it, the correct null parameter is
-- returned. This relationship mechanism relies on the link
-- operation to sort out all the tags. We can't rely on that
-- happening in all cases.
To := null;
if From.all'Tag = Multiple_Side then
--
Check_List_For_Multiple (
Multiple_Instance => From,
Associative_Instance => Temp_Associative,
Single_Instance => Temp_Single,
Multiple_Instance_Found => Found);
if Found then
--
if Class = Single_Side then
To := Temp_Single;
elsif Class = Associative_Side then
To := Temp_Associative;
end if;
--
end if;
--
elsif From.all'Tag = Associative_Side then
Check_List_For_Associative (
Associative_Instance => From,
Multiple_Instance => Temp_Multiple,
Single_Instance => Temp_Single,
Associative_Instance_Found => Found);
if Found then
--
if Class = Single_Side then
To := Temp_Single;
elsif Class = Multiple_Side then
To := Temp_Multiple;