ocarina-backends-utils.adb 125 KB
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------------------------------------------------------------------------------
--                                                                          --
--                           OCARINA COMPONENTS                             --
--                                                                          --
--               O C A R I N A . B A C K E N D S . U T I L S                --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
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--    Copyright (C) 2005-2009 Telecom ParisTech, 2010-2015 ESA & ISAE.      --
--                                                                          --
-- Ocarina  is free software; you can redistribute it and/or modify under   --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
-- sion. Ocarina is distributed in the hope that it will be useful, but     --
-- WITHOUT ANY WARRANTY; without even the implied warranty of               --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.                     --
--                                                                          --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception,   --
-- version 3.1, as published by the Free Software Foundation.               --
--                                                                          --
-- You should have received a copy of the GNU General Public License and    --
-- a copy of the GCC Runtime Library Exception along with this program;     --
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
-- <http://www.gnu.org/licenses/>.                                          --
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--                                                                          --
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--                 Ocarina is maintained by the TASTE project               --
--                      (taste-users@lists.tuxfamily.org)                   --
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--                                                                          --
------------------------------------------------------------------------------

with GNAT.OS_Lib;
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with Ada.Directories;
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with GNAT.Table;

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with Ocarina.Namet;
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with Locations;

with Ocarina.ME_AADL;
with Ocarina.ME_AADL.AADL_Tree.Nodes;
with Ocarina.ME_AADL.AADL_Tree.Nutils;
with Ocarina.ME_AADL.AADL_Tree.Entities.Properties;
with Ocarina.ME_AADL.AADL_Instances.Nodes;
with Ocarina.ME_AADL.AADL_Instances.Nutils;
with Ocarina.ME_AADL.AADL_Instances.Entities;
with Ocarina.Backends.Messages;
with Ocarina.Backends.Ada_Tree.Nodes;
with Ocarina.Backends.Ada_Tree.Nutils;
with Ocarina.Backends.Ada_Values;

package body Ocarina.Backends.Utils is

   package ATN renames Ocarina.ME_AADL.AADL_Tree.Nodes;
   package ATU renames Ocarina.ME_AADL.AADL_Tree.Nutils;
   package AIN renames Ocarina.ME_AADL.AADL_Instances.Nodes;
   package AAU renames Ocarina.ME_AADL.AADL_Instances.Nutils;
   package ADN renames Ocarina.Backends.Ada_Tree.Nodes;
   package ADU renames Ocarina.Backends.Ada_Tree.Nutils;
   package ADV renames Ocarina.Backends.Ada_Values;

   use GNAT.OS_Lib;
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   use Ada.Directories;

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   use Ocarina.Namet;
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   use Locations;
   use Ocarina.ME_AADL;
   use Ocarina.ME_AADL.AADL_Instances.Nodes;
   use Ocarina.ME_AADL.AADL_Instances.Nutils;
   use Ocarina.ME_AADL.AADL_Instances.Entities;
   use Ocarina.Backends.Messages;
   use Ocarina.Backends.Ada_Tree.Nutils;

   --  The entered directories stack

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   package Directories_Stack is new GNAT.Table (Name_Id, Int, 1, 5, 10);
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   function Get_Handling_Internal_Name
     (E          : Node_Id;
      Comparison : Comparison_Kind;
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      Handling   : Handling_Kind) return Name_Id;
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   --  Code factorisation between Set_Handling and Get_Handling. This
   --  function computes an internal name used to store the handling
   --  information.

   function Map_Ada_Subprogram_Status_Name (S : Node_Id) return Name_Id;
   --  Maps an name for the record type corresponding to a hybrid
   --  subprogram.

   function Map_Ada_Call_Seq_Access_Name (S : Node_Id) return Name_Id;
   --  Maps an name for the subprogram access type corresponding to a
   --  hybrid subprogram.

   function Map_Ada_Call_Seq_Subprogram_Name
     (Spg : Node_Id;
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      Seq : Node_Id) return Name_Id;
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   --  Maps an name for the subprogram corresponding to a hybrid
   --  subprogram call sequence.

   type Repository_Entry is record
      E          : Node_Id;
      Comparison : Comparison_Kind;
      Handling   : Handling_Kind;
      A          : Node_Id;
   end record;
   --  One entry of the internal handling repository

   Recording_Requested : Boolean := False;

   package Handling_Repository is new GNAT.Table
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     (Repository_Entry,
      Int,
      1,
      5,
      10);
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   --  The internal handling repository

   procedure May_Be_Append_Handling_Entry
     (E          : Node_Id;
      Comparison : Comparison_Kind;
      Handling   : Handling_Kind;
      A          : Node_Id);
   --  Add a new entry corresponding to the given parameters to the
   --  internal handling repository. The addition is only done in case
   --  the user requested explicitely the recording of handling

   function Bind_Transport_API_Internal_Name (P : Node_Id) return Name_Id;
   --  For code factorization purpose

   ----------------------
   -- Create_Directory --
   ----------------------

   procedure Create_Directory (Dir_Full_Name : Name_Id) is
      Dir_Full_String : constant String := Get_Name_String (Dir_Full_Name);
   begin
      if Is_Regular_File (Dir_Full_String)
        or else Is_Symbolic_Link (Dir_Full_String)
      then
         Display_Error
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           ("Cannot create " &
            Dir_Full_String &
            " because there is a file with the same name",
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            Fatal => True);
         return;
      end if;

      if Is_Directory (Dir_Full_String) then
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         if Dir_Full_String /= "." then
            Display_Error
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              (Dir_Full_String & " already exists",
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               Fatal   => False,
               Warning => True);
         end if;
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         return;
      end if;

      --  The directory name does not clash with anything, create it

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      Create_Directory (Dir_Full_String);
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   end Create_Directory;

   ---------------------
   -- Enter_Directory --
   ---------------------

   procedure Enter_Directory (Dirname : Name_Id) is
      use Directories_Stack;

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      Current_Dir : constant Name_Id := Get_String_Name (Current_Directory);

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   begin
      Increment_Last;
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      Table (Last) := Current_Dir;
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      Display_Debug_Message ("Left    : " & Get_Name_String (Current_Dir));
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      Set_Directory (Get_Name_String (Dirname));
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      Display_Debug_Message ("Entered : " & Get_Name_String (Dirname));
   end Enter_Directory;

   ---------------------
   -- Leave_Directory --
   ---------------------

   procedure Leave_Directory is
      use Directories_Stack;

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      Last_Directory : constant Name_Id := Table (Last);

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   begin
      Decrement_Last;
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      Display_Debug_Message ("Left    : " & Current_Directory);
      Set_Directory (Get_Name_String (Last_Directory));
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      Display_Debug_Message ("Entered : " & Get_Name_String (Last_Directory));
   end Leave_Directory;

   -----------------------------
   -- Add_Directory_Separator --
   -----------------------------

   function Add_Directory_Separator (Path : Name_Id) return Name_Id is
   begin
      Get_Name_String (Path);
      if Name_Buffer (Name_Len) /= Directory_Separator then
         Add_Char_To_Name_Buffer (Directory_Separator);
      end if;
      return Name_Find;
   end Add_Directory_Separator;

   --------------------------------
   -- Remove_Directory_Separator --
   --------------------------------

   function Remove_Directory_Separator (Path : Name_Id) return Name_Id is
   begin
      Get_Name_String (Path);

      if Name_Buffer (Name_Len) = Directory_Separator then
         Name_Len := Name_Len - 1;
      end if;
      return Name_Find;
   end Remove_Directory_Separator;

   ----------------------------------
   -- May_Be_Append_Handling_Entry --
   ----------------------------------

   procedure May_Be_Append_Handling_Entry
     (E          : Node_Id;
      Comparison : Comparison_Kind;
      Handling   : Handling_Kind;
      A          : Node_Id)
   is
      package HR renames Handling_Repository;
      The_Entry : constant Repository_Entry :=
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        Repository_Entry'
          (E => E, Comparison => Comparison, Handling => Handling, A => A);
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   begin
      if Recording_Requested then
         HR.Increment_Last;
         HR.Table (HR.Last) := The_Entry;
      end if;
   end May_Be_Append_Handling_Entry;

   -------------------------------
   -- Start_Recording_Handlings --
   -------------------------------

   procedure Start_Recording_Handlings is
   begin
      if Recording_Requested then
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         raise Program_Error
           with "Consecutive calls to Start_Recording_Handlings are forbidden";
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      else
         Recording_Requested := True;
      end if;
   end Start_Recording_Handlings;

   ------------------------------
   -- Stop_Recording_Handlings --
   ------------------------------

   procedure Stop_Recording_Handlings is
   begin
      Recording_Requested := False;
   end Stop_Recording_Handlings;

   ---------------------
   -- Reset_Handlings --
   ---------------------

   procedure Reset_Handlings is
      package HR renames Handling_Repository;

      Index     : Int := HR.First;
      The_Entry : Repository_Entry;
   begin
      --  Disable the user handling request. It is important to do
      --  this at the beginning to avoid adding new entries when
      --  resetting.

      Recording_Requested := False;

      while Index <= HR.Last loop
         The_Entry := HR.Table (Index);

         --  Reset the handling information

         Set_Handling
           (The_Entry.E,
            The_Entry.Comparison,
            The_Entry.Handling,
            No_Node);

         Index := Index + 1;
      end loop;

      --  Deallocate and reinitialize the repository

      HR.Free;
      HR.Init;
   end Reset_Handlings;

   --------------------
   -- Normalize_Name --
   --------------------

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   function Normalize_Name
     (Name      : Name_Id;
      Ada_Style : Boolean := False) return Name_Id
   is
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      Normalized_Name : Name_Id;
   begin
      --  FIXME: The algorithm does not ensure a bijection between
      --  the input and the output. It should be improved.

      if Name = No_Name then
         Normalized_Name := Name;
      else
         declare
            Initial_Name : constant String := Get_Name_String (Name);
         begin
            Name_Len := 0;

            for Index in Initial_Name'First .. Initial_Name'Last loop
               if Initial_Name (Index) = '.' then
                  Add_Char_To_Name_Buffer ('_');
                  if Ada_Style then
                     Add_Char_To_Name_Buffer ('_');
                  end if;
               elsif Initial_Name (Index) = '-' then
                  Add_Char_To_Name_Buffer ('_');
                  if Ada_Style then
                     Add_Char_To_Name_Buffer ('_');
                  end if;
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               elsif Initial_Name (Index) = ':' then
                  Add_Char_To_Name_Buffer ('_');
                  if Ada_Style then
                     Add_Char_To_Name_Buffer ('_');
                  end if;

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               else
                  Add_Char_To_Name_Buffer (Initial_Name (Index));
               end if;
            end loop;

            Normalized_Name := Name_Find;
         end;
      end if;

      return Normalized_Name;
   end Normalize_Name;

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   -----------------------------------
   -- Fully_Qualified_Instance_Name --
   -----------------------------------

   function Fully_Qualified_Instance_Name (E : Node_Id) return Name_Id is
      Current_Node : Node_Id := Parent_Subcomponent (E);
      Current_Name : Name_Id;

   begin
      Set_Str_To_Name_Buffer ("");
      Get_Name_String (Normalize_Name (Name (Identifier (Current_Node))));
      Current_Name := Name_Find;
      Current_Node := Parent_Component (Current_Node);

      while Present (Current_Node) loop
         exit when No (Parent_Subcomponent (Current_Node));

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         Get_Name_String
           (Normalize_Name
              (Name (Identifier (Parent_Subcomponent (Current_Node)))));
         Set_Str_To_Name_Buffer
           (Get_Name_String (Name_Find) &
            "_" &
            Get_Name_String (Current_Name));
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         Current_Name := Name_Find;

         Current_Node := Parent_Component (Parent_Subcomponent (Current_Node));
      end loop;

      return Current_Name;
   end Fully_Qualified_Instance_Name;

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   ------------------
   -- Is_Namespace --
   ------------------

   function Is_Namespace (N : Node_Id) return Boolean is
   begin
      return Kind (N) = K_Namespace_Instance;
   end Is_Namespace;

   ----------------
   -- Is_Delayed --
   ----------------

   function Is_Delayed (E : Node_Id) return Boolean is
      C : Node_Id;
      S : Node_Id;
   begin
      pragma Assert
        (Kind (E) = K_Port_Spec_Instance and then not Is_Event (E));

      if not AAU.Is_Empty (Sources (E)) then
         C := Extra_Item (First_Node (Sources (E)));

         case AADL_Version is
            when AADL_V1 =>
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               if ATN.Category (Corresponding_Declaration (C)) =
                 Connection_Type'Pos (CT_Data_Delayed)
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               then
                  return True;
               else
                  --  Recurse through the connection path

                  S := Item (First_Node (Sources (E)));

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                  return S /= E
                    and then Kind (S) = K_Port_Spec_Instance
                    and then Is_Delayed (S);
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               end if;

            when AADL_V2 =>
               if Get_Port_Timing (E) = Port_Timing_Delayed then
                  return True;
               else
                  --  Recurse through the connection path

                  S := Item (First_Node (Sources (E)));

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                  return S /= E
                    and then Kind (S) = K_Port_Spec_Instance
                    and then Is_Delayed (S);
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               end if;
         end case;
      end if;

      return False;
   end Is_Delayed;

   -----------------------
   -- Has_In_Parameters --
   -----------------------

   function Has_In_Parameters (E : Node_Id) return Boolean is
      F : Node_Id;
   begin
      if not AAU.Is_Empty (Features (E)) then
         F := First_Node (Features (E));

         while Present (F) loop
            if Kind (F) = K_Parameter_Instance and then Is_In (F) then
               return True;
            end if;

            F := Next_Node (F);
         end loop;
      end if;

      return False;
   end Has_In_Parameters;

   ------------------------
   -- Has_Out_Parameters --
   ------------------------

   function Has_Out_Parameters (E : Node_Id) return Boolean is
      F : Node_Id;
   begin
      if not AAU.Is_Empty (Features (E)) then
         F := First_Node (Features (E));

         while Present (F) loop
            if Kind (F) = K_Parameter_Instance and then Is_Out (F) then
               return True;
            end if;

            F := Next_Node (F);
         end loop;
      end if;

      return False;
   end Has_Out_Parameters;

   ------------------
   -- Has_In_Ports --
   ------------------

   function Has_In_Ports (E : Node_Id) return Boolean is
      F : Node_Id;
   begin
      if not AAU.Is_Empty (Features (E)) then
         F := First_Node (Features (E));

         while Present (F) loop
            if Kind (F) = K_Port_Spec_Instance and then Is_In (F) then
               return True;
            end if;

            F := Next_Node (F);
         end loop;
      end if;

      return False;
   end Has_In_Ports;

   ------------------------
   -- Has_In_Event_Ports --
   ------------------------

   function Has_In_Event_Ports (E : Node_Id) return Boolean is
      F : Node_Id;
   begin
      if not AAU.Is_Empty (Features (E)) then
         F := First_Node (Features (E));

         while Present (F) loop
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            if Kind (F) = K_Port_Spec_Instance
              and then Is_In (F)
              and then Is_Event (F)
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            then
               return True;
            end if;

            F := Next_Node (F);
         end loop;
      end if;

      return False;
   end Has_In_Event_Ports;

   -------------------
   -- Has_Out_Ports --
   -------------------

   function Has_Out_Ports (E : Node_Id) return Boolean is
      F : Node_Id;
   begin
      if not AAU.Is_Empty (Features (E)) then
         F := First_Node (Features (E));

         while Present (F) loop
            if Kind (F) = K_Port_Spec_Instance and then Is_Out (F) then
               return True;
            end if;

            F := Next_Node (F);
         end loop;
      end if;

      return False;
   end Has_Out_Ports;

   -------------------------
   -- Has_Out_Event_Ports --
   -------------------------

   function Has_Out_Event_Ports (E : Node_Id) return Boolean is
      F : Node_Id;
   begin
      if not AAU.Is_Empty (Features (E)) then
         F := First_Node (Features (E));

         while Present (F) loop
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            if Kind (F) = K_Port_Spec_Instance
              and then Is_Out (F)
              and then Is_Event (F)
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            then
               return True;
            end if;

            F := Next_Node (F);
         end loop;
      end if;

      return False;
   end Has_Out_Event_Ports;

   ---------------
   -- Has_Ports --
   ---------------

   function Has_Ports (E : Node_Id) return Boolean is
      F : Node_Id;
   begin
      if not AAU.Is_Empty (Features (E)) then
         F := First_Node (Features (E));

         while Present (F) loop
            if Kind (F) = K_Port_Spec_Instance then
               return True;
            end if;

            F := Next_Node (F);
         end loop;
      end if;

      return False;
   end Has_Ports;

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   ----------------------
   -- Has_Output_Ports --
   ----------------------

   function Has_Output_Ports (E : Node_Id) return Boolean is
      F : Node_Id;
   begin
      if not AAU.Is_Empty (Features (E)) then
         F := First_Node (Features (E));

         while Present (F) loop
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            if Kind (F) = K_Port_Spec_Instance and then Is_Out (F) then
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               return True;
            end if;

            F := Next_Node (F);
         end loop;
      end if;

      return False;
   end Has_Output_Ports;

   ---------------------
   -- Has_Input_Ports --
   ---------------------

   function Has_Input_Ports (E : Node_Id) return Boolean is
      F : Node_Id;
   begin
      if not AAU.Is_Empty (Features (E)) then
         F := First_Node (Features (E));

         while Present (F) loop
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            if Kind (F) = K_Port_Spec_Instance and then Is_In (F) then
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               return True;
            end if;

            F := Next_Node (F);
         end loop;
      end if;

      return False;
   end Has_Input_Ports;

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   ---------------
   -- Has_Modes --
   ---------------

   function Has_Modes (E : Node_Id) return Boolean is
   begin
      pragma Assert (Kind (E) = K_Component_Instance);

      return not AAU.Is_Empty (Modes (E));
   end Has_Modes;

   ----------------------
   -- Get_Source_Ports --
   ----------------------

   function Get_Source_Ports (P : Node_Id) return List_Id is
      function Rec_Get_Source_Ports
        (P : Node_Id;
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         B : Node_Id := No_Node) return List_Id;
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      --  Recursive internal routine

      --------------------------
      -- Rec_Get_Source_Ports --
      --------------------------

      function Rec_Get_Source_Ports
        (P : Node_Id;
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         B : Node_Id := No_Node) return List_Id
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      is
         Result : constant List_Id := New_List (K_List_Id, No_Location);
         C      : Node_Id;
         S      : Node_Id;
         Bus    : Node_Id;
      begin
         if AAU.Is_Empty (Sources (P)) then
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            AAU.Append_Node_To_List (Make_Node_Container (P, B), Result);
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692
         end if;

         S := First_Node (Sources (P));

         while Present (S) loop
            if Kind (Item (S)) = K_Port_Spec_Instance
              and then Parent_Component (Item (S)) /= No_Node
              and then Is_Thread (Parent_Component (Item (S)))
            then
               --  We reached our end point, append it to the result list

               AAU.Append_Node_To_List
693
694
                 (Make_Node_Container (Item (S), B),
                  Result);
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            elsif Kind (Item (S)) = K_Port_Spec_Instance
              and then Parent_Component (Item (S)) /= No_Node
              and then (Is_Process_Or_Device (Parent_Component (Item (S))))
            then

               if Is_In (Item (S)) then
                  --  See whether the connection to the process is
                  --  bound to a bus.

                  C := Extra_Item (S);

                  if No (C) then
                     --  There has been definitly a bug while
                     --  expanding connections.

                     raise Program_Error with "Wrong expansion of connections";
                  end if;

                  --  Get the bus of the connection

                  Bus := Get_Bound_Bus (C, False);
               else
                  Bus := No_Node;
               end if;

               if Present (B) and then Present (Bus) and then B /= Bus then
                  Display_Located_Error
                    (Loc (C),
723
724
                     "This connection is involved in a data flow" &
                     " mapped to several different buses",
725
726
727
728
729
730
                     Fatal => True);
               end if;

               --  Fetch recursively all the sources of S

               AAU.Append_Node_To_List
731
732
                 (First_Node (Rec_Get_Source_Ports (Item (S), Bus)),
                  Result);
733
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            else
               Display_Located_Error
                 (Loc (P),
                  "This port has a source of a non supported kind",
                  Fatal => True);
            end if;

            S := Next_Node (S);
         end loop;

         return Result;
      end Rec_Get_Source_Ports;

   begin
      if AAU.Is_Empty (Sources (P)) then
         return No_List;
      else
         return Rec_Get_Source_Ports (P, No_Node);
      end if;
   end Get_Source_Ports;

   ---------------------------
   -- Get_Destination_Ports --
   ---------------------------

758
   function Get_Destination_Ports
759
760
761
     (P             : Node_Id;
      Custom_Parent : Node_Id := No_Node) return List_Id
   is
762
763

      function Rec_Get_Destination_Ports
764
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766
        (P             : Node_Id;
         B             : Node_Id := No_Node;
         Custom_Parent : Node_Id := No_Node) return List_Id;
767
768
769
770
771
772
773
      --  Recursive internal routine

      -------------------------------
      -- Rec_Get_Destination_Ports --
      -------------------------------

      function Rec_Get_Destination_Ports
774
775
776
        (P             : Node_Id;
         B             : Node_Id := No_Node;
         Custom_Parent : Node_Id := No_Node) return List_Id
777
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781
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783
784
785
786
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789
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      is
         Result : constant List_Id := New_List (K_List_Id, No_Location);
         C      : Node_Id;
         D      : Node_Id;
         Bus    : Node_Id;
      begin
         D := First_Node (Destinations (P));

         while Present (D) loop
            if Kind (Item (D)) = K_Port_Spec_Instance
              and then Parent_Component (Item (D)) /= No_Node
              and then Is_Thread (Parent_Component (Item (D)))
            then
               --  We reached our end point, append it to the result list

               AAU.Append_Node_To_List
793
794
                 (Make_Node_Container (Item (D), B),
                  Result);
795
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822

            elsif Kind (Item (D)) = K_Port_Spec_Instance
              and then Parent_Component (Item (D)) /= No_Node
              and then Is_Process (Parent_Component (Item (D)))
            then
               if Is_In (Item (D)) then
                  --  See whether the connection to the process is
                  --  bound to a bus.

                  C := Extra_Item (D);

                  if No (C) then
                     --  There has been definitly a bug while
                     --  expanding connections.

                     raise Program_Error with "Wrong expansion of connections";
                  end if;

                  --  Get the bus of the connection

                  Bus := Get_Bound_Bus (C, False);
               else
                  Bus := No_Node;
               end if;

               if Present (B) and then Present (Bus) and then B /= Bus then
                  Display_Located_Error
                    (Loc (C),
823
824
                     "This connection is involved in a data flow" &
                     " mapped to several different buses",
825
826
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828
829
830
                     Fatal => True);
               end if;

               --  Fetch recursively all the destinations of D

               AAU.Append_Node_To_List
831
832
                 (First_Node (Rec_Get_Destination_Ports (Item (D), Bus)),
                  Result);
833
834
835
836
837
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839
840

            elsif Kind (Item (D)) = K_Port_Spec_Instance
              and then Parent_Component (Item (D)) /= No_Node
              and then Is_Device (Parent_Component (Item (D)))
            then
               --  We reached our end point, append it to the result list

               AAU.Append_Node_To_List
841
842
843
844
845
846
                 (Make_Node_Container (Item (D), B),
                  Result);
            elsif Custom_Parent /= No_Node
              and then Is_Device (Custom_Parent)
              and then Get_Port_By_Name (P, Custom_Parent) /= No_Node
            then
847

848
849
               AAU.Append_Node_To_List
                 (First_Node
850
851
852
853
                    (Rec_Get_Destination_Ports
                       (Get_Port_By_Name (P, Custom_Parent),
                        B,
                        No_Node)),
854
                  Result);
855
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860
861
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863
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865
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867
            else
               Display_Located_Error
                 (Loc (P),
                  "This port has a destination of a non supported kind",
                  Fatal => True);
            end if;

            D := Next_Node (D);
         end loop;

         return Result;
      end Rec_Get_Destination_Ports;
   begin
868
      return Rec_Get_Destination_Ports (P, No_Node, Custom_Parent);
869
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903
904
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   end Get_Destination_Ports;

   ----------------------
   -- Get_Actual_Owner --
   ----------------------

   function Get_Actual_Owner (Spg_Call : Node_Id) return Node_Id is
      Spg            : constant Node_Id := Corresponding_Instance (Spg_Call);
      Data_Component : Node_Id;
      F              : Node_Id;
   begin
      --  If the subprogram call is not a method return No_Node

      if AAU.Is_Empty (Path (Spg_Call)) then
         return No_Node;
      end if;

      Data_Component := Item (First_Node (Path (Spg_Call)));

      --  Traverse all the required access of the subprogram instance
      --  and find the one corresponding to the owner data component.

      if not AAU.Is_Empty (Features (Spg)) then
         F := First_Node (Features (Spg));

         while Present (F) loop
            if Kind (F) = K_Subcomponent_Access_Instance then
               --  FIXME: We stop at the first met feature that
               --  corresponds to our criteria.

               --  The corresponding declaration of Data_Component is
               --  always a component type and not a component
               --  implementation. However the type of the feature F
               --  may be a component type as well as a component
               --  implementation. We test both cases.

               declare
                  Dcl_Data_Component : constant Node_Id :=
                    Corresponding_Declaration (Data_Component);
908
                  Dcl_F : constant Node_Id :=
909
910
911
912
913
                    Corresponding_Declaration (Corresponding_Instance (F));

                  use Ocarina.ME_AADL.AADL_Tree.Nodes;
               begin
                  exit when
914
915
                    (ATN.Kind (Dcl_F) = K_Component_Type
                     and then Dcl_F = Dcl_Data_Component)
916
                    or else
917
918
919
920
921
                    (ATN.Kind (Dcl_F) = K_Component_Implementation
                     and then
                       ATN.Corresponding_Entity
                         (ATN.Component_Type_Identifier (Dcl_F)) =
                       Dcl_Data_Component);
922
923
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931
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934
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937
938
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941
942
943
944
945
946
               end;
            end if;

            F := Next_Node (F);
         end loop;
      end if;

      --  If no feature matched, raise an error

      if AAU.Is_Empty (Features (Spg)) or else No (F) then
         Display_Located_Error
           (Loc (Spg),
            "Feature subprogram has not access to its owner component",
            Fatal => True);
      end if;

      return Get_Subcomponent_Access_Source (F);
   end Get_Actual_Owner;

   ---------------------------
   -- Get_Container_Process --
   ---------------------------

   function Get_Container_Process (E : Node_Id) return Node_Id is
      pragma Assert (Present (E));
947
   begin
948
949
950
951
952
953
954
955
      case Kind (E) is
         when K_Call_Instance =>
            return Get_Container_Process (Parent_Sequence (E));

         when K_Call_Sequence_Instance | K_Subcomponent_Instance =>
            return Get_Container_Process (Parent_Component (E));

         when others =>
956
957
            if Is_Thread (E)
              or else Is_Subprogram (E)
958
959
              or else AAU.Is_Data (E)
            then
960
               return Get_Container_Process (Parent_Subcomponent (E));
961

962
963
            elsif Is_Process (E) or else Is_Device (E) then
               return Parent_Subcomponent (E);
964

965
966
967
968
969
970
971
972
            elsif Is_Abstract (E) then
               --  It is allowed for a thread to be part of an
               --  abstract component (e.g. a device driver). In this
               --  case, we cannot retrieve the corresponding process
               --  instance.

               return No_Node;

973
            else
974
975
976
977
978
979
               raise Program_Error
                 with "Wrong node kind in " &
                 "Get_Container_Process: " &
                 Kind (E)'Img &
                 " " &
                 Get_Category_Of_Component (E)'Img;
980
981
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989
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992
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994
995
996
997
998
999
1000
1001

            end if;
      end case;
   end Get_Container_Process;

   --------------------------
   -- Get_Container_Thread --
   --------------------------

   function Get_Container_Thread (E : Node_Id) return Node_Id is
   begin
      case Kind (E) is
         when K_Call_Instance =>
            return Get_Container_Thread (Parent_Sequence (E));

         when K_Call_Sequence_Instance =>
            return Parent_Component (E);

         when others =>
            if Is_Subprogram (E) then
               return Get_Container_Thread (Parent_Subcomponent (E));
            else
1002
1003
1004
1005
               raise Program_Error
                 with "Wrong node kind in " &
                 "Get_Container_Thread: " &
                 Kind (E)'Img;
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
            end if;
      end case;
   end Get_Container_Thread;

   --------------------------------
   -- Get_Handling_Internal_Name --
   --------------------------------

   function Get_Handling_Internal_Name
     (E          : Node_Id;
      Comparison : Comparison_Kind;
1017
      Handling   : Handling_Kind) return Name_Id
1018
1019
1020
1021
   is
   begin
      case Comparison is
         when By_Name =>
1022
            Get_Name_String (Map_Ada_Defining_Identifier (E));
1023
         --  Get_Name_String (Compute_Full_Name_Of_Instance (E));
1024

1025
1026
1027
1028
1029
         when By_Node =>
            Set_Nat_To_Name_Buffer (Nat (E));
      end case;

      Add_Str_To_Name_Buffer ("%Handling%" & Handling'Img);
1030

1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
      return Name_Find;
   end Get_Handling_Internal_Name;

   ------------------
   -- Set_Handling --
   ------------------

   procedure Set_Handling
     (E          : Node_Id;
      Comparison : Comparison_Kind;
      Handling   : Handling_Kind;
      A          : Node_Id)
   is
1044
1045
      Internal_Name : constant Name_Id :=
        Get_Handling_Internal_Name (E, Comparison, Handling);
1046

1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
   begin
      Set_Name_Table_Info (Internal_Name, Nat (A));
      May_Be_Append_Handling_Entry (E, Comparison, Handling, A);
   end Set_Handling;

   ------------------
   -- Get_Handling --
   ------------------

   function Get_Handling
     (E          : Node_Id;
      Comparison : Comparison_Kind;
1059
      Handling   : Handling_Kind) return Node_Id
1060
   is
1061
1062
      Internal_Name : constant Name_Id :=
        Get_Handling_Internal_Name (E, Comparison, Handling);
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
   begin
      return Node_Id (Get_Name_Table_Info (Internal_Name));
   end Get_Handling;

   --------------------
   -- Bind_Two_Nodes --
   --------------------

   function Bind_Two_Nodes (N_1 : Node_Id; N_2 : Node_Id) return Node_Id is
      function Get_Binding_Internal_Name
        (N_1 : Node_Id;
1074
         N_2 : Node_Id) return Name_Id;
1075
1076
1077
1078
1079
1080
1081
1082
      --  Return an internal name id useful for the binding

      -------------------------------
      -- Get_Binding_Internal_Name --
      -------------------------------

      function Get_Binding_Internal_Name
        (N_1 : Node_Id;
1083
         N_2 : Node_Id) return Name_Id
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
      is
      begin
         Set_Nat_To_Name_Buffer (Nat (N_1));
         Add_Str_To_Name_Buffer ("%Binding%");
         Add_Nat_To_Name_Buffer (Nat (N_2));
         return Name_Find;
      end Get_Binding_Internal_Name;

      I_Name : constant Name_Id := Get_Binding_Internal_Name (N_1, N_2);
      N      : Node_Id;
   begin
      --  If the Bind_Two_Nodes has already been called on N_1 and
      --  N_1, return the result of the first call.

      if Get_Name_Table_Info (I_Name) /= 0 then
         return Node_Id (Get_Name_Table_Info (I_Name));
      end if;

      --  Otherwise, create a new binding node

1104
      N := Make_Identifier (No_Location, No_Name, No_Name, No_Node);
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
      Set_Name_Table_Info (I_Name, Int (N));

      return N;
   end Bind_Two_Nodes;

   --------------------------------------
   -- Bind_Transport_API_Internal_Name --
   --------------------------------------

   function Bind_Transport_API_Internal_Name (P : Node_Id) return Name_Id is
   begin
      pragma Assert (Is_Process (P));

      Set_Nat_To_Name_Buffer (Nat (P));
      Add_Str_To_Name_Buffer ("%transport%layer%binding%");
      return Name_Find;
   end Bind_Transport_API_Internal_Name;

   ------------------------
   -- Bind_Transport_API --
   ------------------------

1127
   procedure Bind_Transport_API (P : Node_Id; T : Supported_Transport_APIs) is
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
      I_Name : constant Name_Id := Bind_Transport_API_Internal_Name (P);
   begin
      Set_Name_Table_Byte (I_Name, Supported_Transport_APIs'Pos (T));
   end Bind_Transport_API;

   -------------------------
   -- Fetch_Transport_API --
   -------------------------

   function Fetch_Transport_API
1138
     (P : Node_Id) return Supported_Transport_APIs
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
   is
      I_Name : constant Name_Id := Bind_Transport_API_Internal_Name (P);
   begin
      return Supported_Transport_APIs'Val (Get_Name_Table_Byte (I_Name));
   end Fetch_Transport_API;

   -------------------------------
   -- Map_Ada_Full_Feature_Name --
   -------------------------------

   function Map_Ada_Full_Feature_Name
     (E      : Node_Id;
1151
      Suffix : Character := ASCII.NUL) return Name_Id
1152
1153
   is
   begin
1154
1155
1156
1157
1158
      Get_Name_String
        (Compute_Full_Name_Of_Instance
           (Instance         => E,
            Display_Name     => True,
            Keep_Root_System => False));
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
      Get_Name_String (ADU.To_Ada_Name (Name_Find));

      if Suffix /= ASCII.NUL then
         Add_Str_To_Name_Buffer ('_' & Suffix);
      end if;

      return Name_Find;
   end Map_Ada_Full_Feature_Name;

   ----------------------------------
   -- Map_Ada_Data_Type_Designator --
   ----------------------------------

   function Map_Ada_Data_Type_Designator (E : Node_Id) return Node_Id is
      pragma Assert (AAU.Is_Data (E));

1175
   begin
1176
      return ADU.Extract_Designator
1177
          (ADN.Type_Definition_Node (Backend_Node (Identifier (E))));
1178
1179
1180
1181
1182
1183
1184
1185
1186
   end Map_Ada_Data_Type_Designator;

   ---------------------------------
   -- Map_Ada_Full_Parameter_Name --
   ---------------------------------

   function Map_Ada_Full_Parameter_Name
     (Spg    : Node_Id;
      P      : Node_Id;
1187
      Suffix : Character := ASCII.NUL) return Name_Id
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
   is
   begin
      pragma Assert (Kind (P) = K_Parameter_Instance);

      if Kind (Spg) = K_Component_Instance and then Is_Subprogram (Spg) then
         Get_Name_String (Compute_Full_Name_Of_Instance (Spg, True));
      elsif Kind (Spg) = K_Call_Instance then
         Get_Name_String (Display_Name (Identifier (Spg)));
      else
         raise Program_Error with "Wrong subprogram kind";
      end if;

      Add_Char_To_Name_Buffer ('_');
      Get_Name_String_And_Append (Display_Name (Identifier (P)));

      --  Convert the name to a valid Ada identifier name

      Get_Name_String (ADU.To_Ada_Name (Name_Find));

      if Suffix /= ASCII.NUL then
         Add_Str_To_Name_Buffer ('_' & Suffix);
      end if;

      return Name_Find;
   end Map_Ada_Full_Parameter_Name;

   -----------------------------
   -- Map_Ada_Enumerator_Name --
   -----------------------------

   function Map_Ada_Enumerator_Name
     (E      : Node_Id;
1220
      Server : Boolean := False) return Name_Id
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
   is
      Ada_Name_1 : Name_Id;
      Ada_Name_2 : Name_Id;
   begin
      pragma Assert
        (Is_Subprogram (E) or else Kind (E) = K_Subcomponent_Instance);

      if Is_Subprogram (E)
        or else Is_Process (Corresponding_Instance (E))
        or else Is_Device (Corresponding_Instance (E))
      then
         --  For subprograms and processes, the enumerator name is
         --  mapped from the entity name.

         Get_Name_String (ADU.To_Ada_Name (Display_Name (Identifier (E))));
         Add_Str_To_Name_Buffer ("_K");

      elsif Is_Thread (Corresponding_Instance (E)) then
         --  For threads, the enumerator name is mapped from the
         --  containing process or abstract component name and the
         --  thread subcomponent name.

         --  Verifiy that the thread is a subcomponent of a process,
         --  or an abstract component (in the case of threads that
         --  belong to a device driver).

1247
1248
1249
         pragma Assert
           (Is_Process (Parent_Component (E))
            or else Is_Abstract (Parent_Component (E)));
1250
1251

         if Is_Process (Parent_Component (E)) then
1252
1253
1254
1255
            Ada_Name_1 :=
              ADU.To_Ada_Name
                (Display_Name
                   (Identifier (Parent_Subcomponent (Parent_Component (E)))));
1256
1257

         elsif Is_Abstract (Parent_Component (E)) then
1258
1259
1260
            Ada_Name_1 :=
              ADU.To_Ada_Name
                (Display_Name (Identifier (Parent_Component (E))));
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270

         end if;

         Ada_Name_2 := ADU.To_Ada_Name (Display_Name (Identifier (E)));

         Get_Name_String (Ada_Name_1);
         Add_Char_To_Name_Buffer ('_');
         Get_Name_String_And_Append (Ada_Name_2);
         Add_Str_To_Name_Buffer ("_K");
      else
1271
1272
         raise Program_Error
           with "Wrong node kind for Map_Ada_Enumerator_Name " & Kind (E)'Img;
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
      end if;

      if Server then
         Add_Str_To_Name_Buffer ("_Server");
      end if;

      return Name_Find;
   end Map_Ada_Enumerator_Name;

   ---------------------------------
   -- Map_Ada_Defining_Identifier --
   ---------------------------------

   function Map_Ada_Defining_Identifier
     (A      : Node_Id;
1288
      Suffix : String := "") return Name_Id
1289
   is
1290
1291
1292
      I         : Node_Id := A;
      N         : Node_Id := No_Node;
      J         : Node_Id;
1293
1294
1295
1296
1297
1298
1299
1300
      Name_List : List_Id;
   begin
      if Kind (A) /= K_Identifier then
         I := Identifier (A);
      end if;

      if Kind (A) = K_Component_Instance then
         N := Namespace (A);
1301

1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
      elsif Kind (A) = K_Subcomponent_Instance then
         if Present (Parent_Component (A)) then
            N := Namespace (Parent_Component (A));
         end if;
      end if;

      if N /= No_Node
        and then Display_Name (Identifier (N)) /= No_Name
        and then Get_Category_Of_Component (A) /= CC_Data
      then
         --  Use both namespace and identifier to build the Ada
         --  defining identifier, to avoid collisions in the Ada
         --  namespace.

         --  XXX Note: we do not handle data component types for now,
         --  as their mapping is unclear for now, see Code generation
         --  annex for more details.

         Name_List := AAU.Split_Name (N);

         J := First_Node (Name_List);

         if Present (J) then
            Get_Name_String (To_Ada_Name (Display_Name (J)));
            J := Next_Node (J);

            while Present (J) loop
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               Add_Str_To_Name_Buffer
                 ("_" & Get_Name_String (Display_Name (J)));
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               J := Next_Node (J);
            end loop;
         end if;
         Add_Str_To_Name_Buffer ("_" & Get_Name_String (Display_Name (I)));

      else
         Get_Name_String (To_Ada_Name (Display_Name (I)));
      end if;

      if Suffix /= "" then
         Add_Str_To_Name_Buffer ("_" & Suffix);
      end if;

      return Name_Find;
   end Map_Ada_Defining_Identifier;

   function Map_Ada_Defining_Identifier
     (A      : Node_Id;
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      Suffix : String := "") return Node_Id
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   is
   begin
      return Make_Defining_Identifier
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          (Map_Ada_Defining_Identifier (A, Suffix));
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   end Map_Ada_Defining_Identifier;

   ----------------------------
   -- Map_Ada_Component_Name --
   ----------------------------

   function Map_Ada_Component_Name (F : Node_Id) return Name_Id is
   begin
      Get_Name_String (To_Ada_Name (Display_Name (Identifier (F))));
      Add_Str_To_Name_Buffer ("_DATA");
      return Name_Find;
   end Map_Ada_Component_Name;

   --------------------------------------------
   -- Map_Ada_Protected_Aggregate_Identifier --
   --------------------------------------------

   function Map_Ada_Protected_Aggregate_Identifier
     (S : Node_Id;
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      A : Node_Id) return Node_Id
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   is
      S_Name : Name_Id;
      A_Name : Name_Id;
   begin
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      pragma Assert
        (Kind (S) = K_Subcomponent_Access_Instance
         and then Kind (A) = K_Subcomponent_Instance);
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      S_Name := To_Ada_Name (Display_Name (Identifier (S)));
      A_Name := To_Ada_Name (Display_Name (Identifier (A)));

      Get_Name_String (S_Name);
      Add_Char_To_Name_Buffer ('_');
      Get_Name_String_And_Append (A_Name);

      return Make_Defining_Identifier (Name_Find);
   end Map_Ada_Protected_Aggregate_Identifier;

   --------------------------------------
   -- Map_Ada_Default_Value_Identifier --
   --------------------------------------

   function Map_Ada_Default_Value_Identifier (D : Node_Id) return Node_Id is
      I : Node_Id;
   begin
      if Kind (D) /= K_Identifier then
         I := Identifier (D);
      end if;

      Get_Name_String (To_Ada_Name (Display_Name (I)));
      Add_Str_To_Name_Buffer ("_Default_Value");
      return Make_Defining_Identifier (Name_Find);
   end Map_Ada_Default_Value_Identifier;

   --------------------------------
   -- Map_Ada_Package_Identifier --
   --------------------------------

   function Map_Ada_Package_Identifier (E : Node_Id) return Node_Id is
      Port_Name   : Name_Id;
      Thread_Name : Name_Id;
   begin
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      pragma Assert (AAU.Is_Data (E) or else Kind (E) = K_Port_Spec_Instance);
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      if AAU.Is_Data (E) then
         Get_Name_String (To_Ada_Name (Display_Name (Identifier (E))));
      else
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         Port_Name   := To_Ada_Name (Display_Name (Identifier (E)));
         Thread_Name :=
           To_Ada_Name
             (Display_Name
                (Identifier (Parent_Subcomponent (Parent_Component (E)))));
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         Get_Name_String (Thread_Name);
         Add_Char_To_Name_Buffer ('_');
         Get_Name_String_And_Append (Port_Name);
      end if;

      Add_Str_To_Name_Buffer ("_Pkg");

      return Make_Defining_Identifier (Name_Find);
   end Map_Ada_Package_Identifier;

   -----------------------------------
   -- Map_Ada_Subprogram_Identifier --
   -----------------------------------

   function Map_Ada_Subprogram_Identifier (E : Node_Id) return Node_Id is
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      pragma Assert
        (Is_Thread (E)
         or else Is_Subprogram (E)
         or else Kind (E) = K_Port_Spec_Instance);
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      Spg_Name : Name_Id;

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   begin
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      if Is_Subprogram (E)
        and then Get_Source_Language (E) /= Language_Ada_95
      then
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         Display_Located_Error
           (Loc (E),
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            "This is not an Ada subprogram",
            Fatal => True);
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      end if;

      --  Get the subprogram name

      if Is_Subprogram (E) then
         Spg_Name := Get_Source_Name (E);
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      elsif Is_Thread (E) then
         Spg_Name := Get_Thread_Compute_Entrypoint (E);
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      else
         Spg_Name := Get_Port_Compute_Entrypoint (E);
      end if;

      return Map_Ada_Subprogram_Identifier (Spg_Name);
   end Map_Ada_Subprogram_Identifier;

   -----------------------------------
   -- Map_Ada_Subprogram_Identifier --
   -----------------------------------

   function Map_Ada_Subprogram_Identifier (N : Name_Id) return Node_Id is
      P_Name : Name_Id;
      Result : Node_Id;
      D      : Node_Id;
   begin
      --  Get the package implementation and add the 'with' clause

      P_Name := Unit_Name (N);

      if P_Name = No_Name then
         Display_Error
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           ("You must give the subprogram implementation name",
            Fatal => True);
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      end if;

      D := Make_Designator (P_Name);
      ADN.Set_Corresponding_Node
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        (ADN.Defining_Identifier (D),
         New_Node (ADN.K_Package_Specification));
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      Add_With_Package (D);

      --  Get the full implementation name

      Get_Name_String (Local_Name (N));
      Result := Make_Defining_Identifier (Name_Find);
      Set_Homogeneous_Parent_Unit_Name (Result, D);
      return Result;
   end Map_Ada_Subprogram_Identifier;

   -----------------------------
   -- Map_Ada_Subprogram_Spec --
   -----------------------------

   function Map_Ada_Subprogram_Spec (S : Node_Id) return Node_Id is
      Profile : constant List_Id := ADU.New_List (ADN.K_Parameter_Profile);
      Param   : Node_Id;
      Mode    : Mode_Id;
      F       : Node_Id;
      N       : Node_Id;
      D       : Node_Id;
      Field   : Node_Id;
   begin
      pragma Assert (Is_Subprogram (S));

      --  We build the parameter profile of the subprogram instance by
      --  adding:

      --  First, the parameter features mapping

      if not AAU.Is_Empty (Features (S)) then
         F := First_Node (Features (S));

         while Present (F) loop
            if Kind (F) = K_Parameter_Instance then
               if Is_In (F) and then Is_Out (F) then
                  Mode := Mode_Inout;
               elsif Is_Out (F) then
                  Mode := Mode_Out;
               elsif Is_In (F) then
                  Mode := Mode_In;
               else
                  Display_Located_Error
                    (Loc (F),
                     "Unspecified parameter mode",
                     Fatal => True);
               end if;

               D := Corresponding_Instance (F);

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               Param :=
                 ADU.Make_Parameter_Specification
                   (Map_Ada_Defining_Identifier (F),
                    Map_Ada_Data_Type_Designator (D),
                    Mode);
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               ADU.Append_Node_To_List (Param, Profile);
            end if;

            F := Next_Node (F);
         end loop;
      end if;

      --  Second, the data access mapping. The data accesses are not
      --  mapped in the case of pure call sequence subprogram because
      --  they are used only to close the access chain.

      if Get_Subprogram_Kind (S) /= Subprogram_Pure_Call_Sequence then
         if not AAU.Is_Empty (Features (S)) then
            F := First_Node (Features (S));

            while Present (F) loop
               if Kind (F) = K_Subcomponent_Access_Instance then
                  case Get_Required_Data_Access (Corresponding_Instance (F)) is
                     when Access_Read_Only =>
                        Mode := Mode_In;
                     when Access_Write_Only =>
                        Mode := Mode_Out;
                     when Access_Read_Write =>
                        Mode := Mode_Inout;
                     when Access_None =>
                        --  By default, we allow read/write access

                        Mode := Mode_Inout;
                     when others =>
                        Display_Located_Error
                          (Loc (F),
                           "Unsupported required access",
                           Fatal => True);
                  end case;

                  D := Corresponding_Instance (F);

                  case Get_Data_Representation (D) is
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                     when Data_Integer     |
                       Data_Boolean        |
                       Data_Float          |
                       Data_Fixed          |
                       Data_String         |
                       Data_Wide_String    |
                       Data_Character      |
                       Data_Wide_Character |
                       Data_Array          =>
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                        --  If the data component is a simple data
                        --  component (not a structure), we simply add a
                        --  parameter with the computed mode and with a
                        --  type mapped from the data component.

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                        Param :=
                          ADU.Make_Parameter_Specification
                            (Map_Ada_Defining_Identifier (F),
                             Map_Ada_Data_Type_Designator (D),
                             Mode);
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                        ADU.Append_Node_To_List (Param, Profile);

                     when Data_Struct | Data_With_Accessors =>
                        --  If the data component is a complex data
                        --  component (which has subcomponents), we add a
                        --  parameter with the computed mode and with a
                        --  type mapped from each subcomponent type.

                        Field := First_Node (Subcomponents (D));

                        while Present (Field) loop
                           --  The parameter name is mapped from the
                           --  container data component and the data
                           --  subcomponent.

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                           if AAU.Is_Data (Corresponding_Instance (Field)) then
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                              Param :=
                                ADU.Make_Parameter_Specification
                                  (Map_Ada_Protected_Aggregate_Identifier
                                     (F,
                                      Field),
                                   Map_Ada_Data_Type_Designator
                                     (Corresponding_Instance (Field)),
                                   Mode);
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                              ADU.Append_Node_To_List (Param, Profile);
                           end if;
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                           Field := Next_Node (Field);
                        end loop;

                     when others =>
                        Display_Located_Error
                          (Loc (F),
                           "Unsupported data type",
                           Fatal => True);
                  end case;
               end if;

               F := Next_Node (F);
            end loop;
         end if;
      end if;

      --  Last, if the subprogram has OUT ports, we add an additional
      --  Status parameter.

      if Has_Out_Ports (S) then
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         Param :=
           ADU.Make_Parameter_Specification
             (Make_Defining_Identifier (PN (P_Status)),
              Extract_Designator
                (ADN.Type_Definition_Node (Backend_Node (Identifier (S)))),
              Mode_Inout);
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         ADU.Append_Node_To_List (Param, Profile);
      end if;

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      N :=
        ADU.Make_Subprogram_Specification
          (Map_Ada_Defining_Identifier (S),
           Profile,
           No_Node);
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      --  If the program is an Opaque_C, we add the pragma Import
      --  instruction in the private part of the current package

      if Get_Subprogram_Kind (S) = Subprogram_Opaque_C then
         declare
            use ADN;

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            P : constant Node_Id :=
              Make_Pragma_Statement
                (Pragma_Import,
                 Make_List_Id
                   (Make_Defining_Identifier (PN (P_C)),
                    Map_Ada_Defining_Identifier (S),
                    Make_Literal
                      (ADV.New_String_Value (Get_Source_Name (S)))));
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         begin
            --  We must ensure that we are inside the scope of a
            --  package spec before inserting the pragma. In fact,
            --  Map_Ada_Subprogram_Spec is called also when we build
            --  the body of the subprogram, and we do not want to
            --  insert the pragma when building the body.

            if ADN.Kind (Current_Package) = K_Package_Specification then
               ADU.Append_Node_To_List (P, Private_Part (Current_Package));
            end if;
         end;
      end if;
      return N;
   end Map_Ada_Subprogram_Spec;

   -----------------------------
   -- Map_Ada_Subprogram_Body --
   -----------------------------

   function Map_Ada_Subprogram_Body (S : Node_Id) return Node_Id is
      Spec         : constant Node_Id := Map_Ada_Subprogram_Spec (S);
      Declarations : constant List_Id := New_List (ADN.K_Declaration_List);
      Statements   : constant List_Id := New_List (ADN.K_Statement_List);

      Profile  : List_Id;
      N        : Node_Id;
      F        : Node_Id;
      Call_Seq : Node_Id;
   begin
      case Get_Subprogram_Kind (S) is
         when Subprogram_Empty =>
            --  An empty AADL subprogram is mapped into an Ada
            --  subprogram that raises an exception to warn the user.

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            N :=
              Make_Exception_Declaration
                (Make_Defining_Identifier (EN (E_NYI)));
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            ADU.Append_Node_To_List (N, Declarations);

            N := Make_Raise_Statement (Make_Defining_Identifier (EN (E_NYI)));
            ADU.Append_Node_To_List (N, Statements);

            return Make_Subprogram_Implementation
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                (Spec,
                 Declarations,
                 Statements);
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         when Subprogram_Opaque_C =>
            --  An opaque C AADL subprogram is a subprogram which is
            --  implemented by a C subprogram. We perform the mapping
            --  between the two subprograms using the Ada `Import'
            --  pragma in the specification. Therefore, we have
            --  nothing to do in the body.

            return No_Node;

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         when Subprogram_Opaque_Ada_95 | Subprogram_Default =>
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            --  An opaque Ada AADL subprogram is a subprogram which is
            --  implemented by an Ada subprogram. We perform the
            --  mapping between the two subprograms using the Ada
            --  renaming facility.

            --  Add the proper `with' clause

            N := Make_Designator (Unit_Name (Get_Source_Name (S)));
            Add_With_Package (N);

            --  Perform the renaming

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            N :=
              Make_Designator
                (Local_Name (Get_Source_Name (S)),
                 Unit_Name (Get_Source_Name (S)));
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            ADN.Set_Renamed_Entity (Spec, N);
            return Spec;

         when Subprogram_Opaque_Ada_95_Transfo =>
            --  Same as above, but does not with the package, because
            --  it is actually an instanciated generic package

            --  Perform the renaming

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            N :=
              Make_Designator
                (Local_Name (Get_Transfo_Source_Name (S)),
                 Unit_Name (Get_Transfo_Source_Name (S)));
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            ADN.Set_Renamed_Entity (Spec, N);
            return Spec;

         when Subprogram_Pure_Call_Sequence =>
            --  A pure call sequence subprogram is a subprogram that
            --  has exactly one call sequence. The behaviour of this
            --  subprogram is simply the call to the subprograms
            --  present in its call list.

            Handle_Call_Sequence
              (S,
               Make_Defining_Identifier (PN (P_Status)),
               First_Node (Calls (S)),
               Declarations,
               Statements);
            return ADU.Make_Subprogram_Implementation
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                (Spec,
                 Declarations,
                 Statements);
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         when Subprogram_Hybrid_Ada_95 =>
            --  Hybrid subprograms are subprograms that contain more
            --  that one call sequence.

            --  Declare the Status local variable

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            N :=
              Make_Object_Declaration
                (Defining_Identifier =>
                   Make_Defining_Identifier (PN (P_Status)),
                 Object_Definition =>
                   Make_Defining_Identifier
                     (Map_Ada_Subprogram_Status_Name (S)));
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            ADU.Append_Node_To_List (N, Declarations);

            --  Initialise the record fields that correspond to IN
            --  parameters.

            if not AAU.Is_Empty (Features (S)) then
               F := First_Node (Features (S));

               while Present (F) loop
                  if Kind (F) = K_Parameter_Instance and then Is_In (F) then
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                     N :=
                       Make_Assignment_Statement
                         (Make_Designator
                            (To_Ada_Name (Display_Name (Identifier (F))),
                             PN (P_Status)),
                          Make_Designator
                            (To_Ada_Name (Display_Name (Identifier (F)))));
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                     ADU.Append_Node_To_List (N, Statements);
                  end if;

                  F := Next_Node (F);
               end loop;
            end if;

            Profile := New_List (ADN.K_Parameter_Profile);

            --  Append the 'Status' variable to the call profile

            N := Make_Defining_Identifier (PN (P_Status));
            ADU.Append_Node_To_List (N, Profile);

            --  For each call sequence, we add the subprogram that
            --  handles it.

            Call_Seq := First_Node (Calls (S));

            while Present (Call_Seq) loop
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               N :=
                 Make_Attribute_Designator
                   (Make_Defining_Identifier
                      (Map_Ada_Call_Seq_Subprogram_Name (S, Call_Seq)),
                    A_Access);
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               ADU.Append_Node_To_List (N, Profile);

               Call_Seq := Next_Node (Call_Seq);
            end loop;

            --  Call the implementation subprogram

            --  Add the proper `with' clause

            N := Make_Designator (Unit_Name (Get_Source_Name (S)));
            Add_With_Package (N);

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            N :=
              Make_Designator
                (Local_Name (Get_Source_Name (S)),
                 Unit_Name (Get_Source_Name (S)));
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            N := Make_Subprogram_Call (ADN.Defining_Identifier (N), Profile);
            ADU.Append_Node_To_List (N, Statements);

            --  Update the OUT parameters from the corresponding
            --  record fields.

            if not AAU.Is_Empty (Features (S)) then
               F := First_Node (Features (S));

               while Present (F) loop
                  if Kind (F) = K_Parameter_Instance and then Is_Out (F) then
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                     N :=
                       Make_Assignment_Statement
                         (Make_Designator
                            (To_Ada_Name (Display_Name (Identifier (F)))),
                          Make_Designator
                            (To_Ada_Name (Display_Name (Identifier (F))),
                             PN (P_Status)));
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                     ADU.Append_Node_To_List (N, Statements);
                  end if;

                  F := Next_Node (F);
               end loop;
            end if;

            return Make_Subprogram_Implementation
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                (Spec,
                 Declarations,
                 Statements);
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         when Subprogram_Lustre =>
            --  In PolyORB-HI-Ada, a Lustre subprogram is mapped onto an Ada
            --  subprogram that raises an exception to warn the user.

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            N :=
              Make_Exception_Declaration
                (Make_Defining_Identifier (EN (E_NYI)));
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            ADU.Append_Node_To_List (N, Declarations);

            N := Make_Raise_Statement (Make_Defining_Identifier (EN (E_NYI)));
            ADU.Append_Node_To_List (N, Statements);

            return Make_Subprogram_Implementation
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                (Spec,
                 Declarations,
                 Statements);
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         when others =>
            Display_Located_Error
              (Loc (S),
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               "This kind of subprogram is not supported: " &
               Get_Subprogram_Kind (S)'Img,
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               Fatal => True);
            return No_Node;
      end case;
   end Map_Ada_Subprogram_Body;

   --------------------------------------
   -- Map_Ada_Call_Seq_Subprogram_Spec --
   --------------------------------------

   function Map_Ada_Call_Seq_Subprogram_Spec
     (Spg : Node_Id;
1927
      Seq : Node_Id) return Node_Id
1928
1929
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1931
   is
      Profile : constant List_Id := New_List (ADN.K_Parameter_Profile);
      N       : Node_Id;
   begin
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      N :=
        Make_Parameter_Specification
          (Make_Defining_Identifier (PN (P_Status)),
           Make_Defining_Identifier (Map_Ada_Subprogram_Status_Name (Spg)),
           Mode_Inout);
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      ADU.Append_Node_To_List (N, Profile);

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      N :=
        Make_Subprogram_Specification
          (Make_Defining_Identifier
             (Map_Ada_Call_Seq_Subprogram_Name (Spg, Seq)),
           Profile);
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      return N;
   end Map_Ada_Call_Seq_Subprogram_Spec;

   --------------------------------------
   -- Map_Ada_Call_Seq_Subprogram_Body --
   --------------------------------------

   function Map_Ada_Call_Seq_Subprogram_Body
     (Spg : Node_Id;
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      Seq : Node_Id) return Node_Id
1954