gcc/testsuite/gnat.dg/opt57.ads

   1 -- { dg-do compile }
   2 -- { dg-options "-O3" }
   3
   4 with Ada.Finalization; use Ada.Finalization;
   5 with Opt57_Pkg; use Opt57_Pkg;
   6
   7 package Opt57 is
   8
   9    procedure Update;
  10
  11    procedure Init;
  12
  13    type Module_Factory is abstract new Limited_Controlled with private;
  14
  15    type Root_Module_Rec (Language : access Module_Factory'Class)
  16    is abstract new GC_Pool with null record;
  17
  18    type List is tagged limited private;
  19    type Linkable is abstract new Root_Module_Rec with private;
  20    type Linkable_Ptr is access all Linkable'Class;
  21
  22 private
  23
  24    type Link is access all List'Class;
  25    type Link_Constant is access constant List'Class;
  26    type List is tagged limited record
  27       Next : Link;
  28    end record;
  29
  30    type Links_Type (Container : access Linkable) is new List with null record;
  31
  32    type Linkable is abstract new Root_Module_Rec with record
  33       On_List : Link_Constant;
  34       Links   : aliased Links_Type (Linkable'Access);
  35    end record;
  36
  37    type Module_Rec (Language : access Module_Factory'Class)
  38    is abstract new Linkable (Language) with null record;
  39    type Module_Ptr is access all Module_Rec'Class;
  40
  41    type Private_Module_Factory;
  42    type Private_Module_Factory_Ptr is access Private_Module_Factory;
  43
  44    type Module_Factory is abstract new Limited_Controlled with record
  45       Priv : Private_Module_Factory_Ptr;
  46    end record;
  47
  48    type Module_Factory_Ptr is access all Module_Factory'Class;
  49
  50 end Opt57;