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-- { dg-do run }
with Ada.Text_IO, Ada.Tags;
procedure Test_Iface_Aggr is
package Pkg is
type Iface is interface;
function Constructor (S: Iface) return Iface'Class is abstract;
procedure Do_Test (It : Iface'class);
type Root is abstract tagged record
Comp_1 : Natural := 0;
end record;
type DT_1 is new Root and Iface with record
Comp_2, Comp_3 : Natural := 0;
end record;
function Constructor (S: DT_1) return Iface'Class;
type DT_2 is new DT_1 with null record; -- Test
function Constructor (S: DT_2) return Iface'Class;
end;
package body Pkg is
procedure Do_Test (It: in Iface'Class) is
Obj : Iface'Class := Constructor (It);
S : String := Ada.Tags.External_Tag (Obj'Tag);
begin
null;
end;
function Constructor (S: DT_1) return Iface'Class is
begin
return Iface'Class(DT_1'(others => <>));
end;
function Constructor (S: DT_2) return Iface'Class is
Result : DT_2;
begin
return Iface'Class(DT_2'(others => <>)); -- Test
end;
end;
use Pkg;
Obj: DT_2;
begin
Do_Test (Obj);
end;
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