]> oss.titaniummirror.com Git - msp430-gcc.git/blobdiff - gcc/ada/prj-proc.adb
Imported gcc-4.4.3
[msp430-gcc.git] / gcc / ada / prj-proc.adb
diff --git a/gcc/ada/prj-proc.adb b/gcc/ada/prj-proc.adb
deleted file mode 100644 (file)
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+++ /dev/null
@@ -1,1374 +0,0 @@
-------------------------------------------------------------------------------
---                                                                          --
---                         GNAT COMPILER COMPONENTS                         --
---                                                                          --
---                              P R J . P R O C                             --
---                                                                          --
---                                 B o d y                                  --
---                                                                          --
---                            $Revision: 1.4.10.1 $
---                                                                          --
---             Copyright (C) 2001 Free Software Foundation, Inc.            --
---                                                                          --
--- GNAT is free software;  you can  redistribute it  and/or modify it under --
--- terms of the  GNU General Public License as published  by the Free Soft- --
--- ware  Foundation;  either version 2,  or (at your option) any later ver- --
--- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
--- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
--- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
--- for  more details.  You should have  received  a copy of the GNU General --
--- Public License  distributed with GNAT;  see file COPYING.  If not, write --
--- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
--- MA 02111-1307, USA.                                                      --
---                                                                          --
--- GNAT was originally developed  by the GNAT team at  New York University. --
--- Extensive contributions were provided by Ada Core Technologies Inc.      --
---                                                                          --
-------------------------------------------------------------------------------
-
-with Errout;   use Errout;
-with Namet;    use Namet;
-with Opt;
-with Output;   use Output;
-with Prj.Attr; use Prj.Attr;
-with Prj.Com;  use Prj.Com;
-with Prj.Ext;  use Prj.Ext;
-with Prj.Nmsc; use Prj.Nmsc;
-with Stringt;  use Stringt;
-
-with GNAT.Case_Util;
-with GNAT.HTable;
-
-package body Prj.Proc is
-
-   Error_Report : Put_Line_Access := null;
-
-   package Processed_Projects is new GNAT.HTable.Simple_HTable
-     (Header_Num => Header_Num,
-      Element    => Project_Id,
-      No_Element => No_Project,
-      Key        => Name_Id,
-      Hash       => Hash,
-      Equal      => "=");
-   --  This hash table contains all processed projects
-
-   procedure Add (To_Exp : in out String_Id; Str : String_Id);
-   --  Concatenate two strings and returns another string if both
-   --  arguments are not null string.
-
-   procedure Add_Attributes
-     (Decl     : in out Declarations;
-      First    : Attribute_Node_Id);
-   --  Add all attributes, starting with First, with their default
-   --  values to the package or project with declarations Decl.
-
-   function Expression
-     (Project           : Project_Id;
-      From_Project_Node : Project_Node_Id;
-      Pkg               : Package_Id;
-      First_Term        : Project_Node_Id;
-      Kind              : Variable_Kind)
-      return              Variable_Value;
-   --  From N_Expression project node From_Project_Node, compute the value
-   --  of an expression and return it as a Variable_Value.
-
-   function Imported_Or_Modified_Project_From
-     (Project   : Project_Id;
-      With_Name : Name_Id)
-      return      Project_Id;
-   --  Find an imported or modified project of Project whose name is With_Name.
-
-   function Package_From
-     (Project   : Project_Id;
-      With_Name : Name_Id)
-      return      Package_Id;
-   --  Find the package of Project whose name is With_Name.
-
-   procedure Process_Declarative_Items
-     (Project           : Project_Id;
-      From_Project_Node : Project_Node_Id;
-      Pkg               : Package_Id;
-      Item              : Project_Node_Id);
-   --  Process declarative items starting with From_Project_Node, and put them
-   --  in declarations Decl. This is a recursive procedure; it calls itself for
-   --  a package declaration or a case construction.
-
-   procedure Recursive_Process
-     (Project           : out Project_Id;
-      From_Project_Node : Project_Node_Id;
-      Modified_By       : Project_Id);
-   --  Process project with node From_Project_Node in the tree.
-   --  Do nothing if From_Project_Node is Empty_Node.
-   --  If project has already been processed, simply return its project id.
-   --  Otherwise create a new project id, mark it as processed, call itself
-   --  recursively for all imported projects and a modified project, if any.
-   --  Then process the declarative items of the project.
-
-   procedure Check (Project : in out Project_Id);
-   --  Set all projects to not checked, then call Recursive_Check for
-   --  the main project Project.
-   --  Project is set to No_Project if errors occurred.
-
-   procedure Recursive_Check (Project : Project_Id);
-   --  If Project is marked as not checked, mark it as checked,
-   --  call Check_Naming_Scheme for the project, then call itself
-   --  for a possible modified project and all the imported projects
-   --  of Project.
-
-   ---------
-   -- Add --
-   ---------
-
-   procedure Add (To_Exp : in out String_Id; Str : String_Id) is
-   begin
-      if To_Exp = Types.No_String or else String_Length (To_Exp) = 0 then
-
-         --  To_Exp is nil or empty. The result is Str.
-
-         To_Exp := Str;
-
-      --  If Str is nil, then do not change To_Ext
-
-      elsif Str /= No_String then
-         Start_String (To_Exp);
-         Store_String_Chars (Str);
-         To_Exp := End_String;
-      end if;
-   end Add;
-
-   --------------------
-   -- Add_Attributes --
-   --------------------
-
-   procedure Add_Attributes
-     (Decl           : in out Declarations;
-      First          : Attribute_Node_Id) is
-      The_Attribute  : Attribute_Node_Id := First;
-      Attribute_Data : Attribute_Record;
-
-   begin
-      while The_Attribute /= Empty_Attribute loop
-         Attribute_Data := Attributes.Table (The_Attribute);
-
-         if Attribute_Data.Kind_2 /= Associative_Array then
-            declare
-               New_Attribute : Variable_Value;
-
-            begin
-               case Attribute_Data.Kind_1 is
-
-                  --  Undefined should not happen
-
-                  when Undefined =>
-                     pragma Assert
-                       (False, "attribute with an undefined kind");
-                     raise Program_Error;
-
-                  --  Single attributes have a default value of empty string
-
-                  when Single =>
-                     New_Attribute :=
-                       (Kind     => Single,
-                        Location => No_Location,
-                        Default  => True,
-                        Value    => Empty_String);
-
-                  --  List attributes have a default value of nil list
-
-                  when List =>
-                     New_Attribute :=
-                       (Kind     => List,
-                        Location => No_Location,
-                        Default  => True,
-                        Values   => Nil_String);
-
-               end case;
-
-               Variable_Elements.Increment_Last;
-               Variable_Elements.Table (Variable_Elements.Last) :=
-                 (Next  => Decl.Attributes,
-                  Name  => Attribute_Data.Name,
-                  Value => New_Attribute);
-               Decl.Attributes := Variable_Elements.Last;
-            end;
-         end if;
-
-         The_Attribute := Attributes.Table (The_Attribute).Next;
-      end loop;
-
-   end Add_Attributes;
-
-   -----------
-   -- Check --
-   -----------
-
-   procedure Check (Project : in out Project_Id) is
-   begin
-      --  Make sure that all projects are marked as not checked.
-
-      for Index in 1 .. Projects.Last loop
-         Projects.Table (Index).Checked := False;
-      end loop;
-
-      Recursive_Check (Project);
-
-      if Errout.Errors_Detected > 0 then
-         Project := No_Project;
-      end if;
-
-   end Check;
-
-   ----------------
-   -- Expression --
-   ----------------
-
-   function Expression
-     (Project           : Project_Id;
-      From_Project_Node : Project_Node_Id;
-      Pkg               : Package_Id;
-      First_Term        : Project_Node_Id;
-      Kind              : Variable_Kind)
-      return              Variable_Value
-   is
-      The_Term : Project_Node_Id := First_Term;
-      --  The term in the expression list
-
-      The_Current_Term : Project_Node_Id := Empty_Node;
-      --  The current term node id
-
-      Term_Kind : Variable_Kind;
-      --  The kind of the current term
-
-      Result : Variable_Value (Kind => Kind);
-      --  The returned result
-
-      Last : String_List_Id := Nil_String;
-      --  Reference to the last string elements in Result, when Kind is List.
-
-   begin
-      Result.Location := Location_Of (First_Term);
-
-      --  Process each term of the expression, starting with First_Term
-
-      while The_Term /= Empty_Node loop
-
-         --  We get the term data and kind ...
-
-         Term_Kind := Expression_Kind_Of (The_Term);
-
-         The_Current_Term := Current_Term (The_Term);
-
-         case Kind_Of (The_Current_Term) is
-
-            when N_Literal_String =>
-
-               case Kind is
-
-                  when Undefined =>
-
-                     --  Should never happen
-
-                     pragma Assert (False, "Undefined expression kind");
-                     raise Program_Error;
-
-                  when Single =>
-                     Add (Result.Value, String_Value_Of (The_Current_Term));
-
-                  when List =>
-
-                     String_Elements.Increment_Last;
-
-                     if Last = Nil_String then
-
-                        --  This can happen in an expression such as
-                        --  () & "toto"
-
-                        Result.Values := String_Elements.Last;
-
-                     else
-                        String_Elements.Table (Last).Next :=
-                          String_Elements.Last;
-                     end if;
-
-                     Last := String_Elements.Last;
-                     String_Elements.Table (Last) :=
-                       (Value    => String_Value_Of (The_Current_Term),
-                        Location => Location_Of (The_Current_Term),
-                        Next     => Nil_String);
-
-               end case;
-
-            when N_Literal_String_List =>
-
-               declare
-                  String_Node : Project_Node_Id :=
-                                  First_Expression_In_List (The_Current_Term);
-
-                  Value : Variable_Value;
-
-               begin
-                  if String_Node /= Empty_Node then
-
-                     --  If String_Node is nil, it is an empty list,
-                     --  there is nothing to do
-
-                     Value := Expression
-                       (Project           => Project,
-                        From_Project_Node => From_Project_Node,
-                        Pkg               => Pkg,
-                        First_Term        => Tree.First_Term (String_Node),
-                        Kind              => Single);
-                     String_Elements.Increment_Last;
-
-                     if Result.Values = Nil_String then
-
-                        --  This literal string list is the first term
-                        --  in a string list expression
-
-                        Result.Values := String_Elements.Last;
-
-                     else
-                        String_Elements.Table (Last).Next :=
-                          String_Elements.Last;
-                     end if;
-
-                     Last := String_Elements.Last;
-                     String_Elements.Table (Last) :=
-                       (Value    => Value.Value,
-                        Location => Value.Location,
-                        Next     => Nil_String);
-
-                     loop
-                        --  Add the other element of the literal string list
-                        --  one after the other
-
-                        String_Node :=
-                          Next_Expression_In_List (String_Node);
-
-                        exit when String_Node = Empty_Node;
-
-                        Value :=
-                          Expression
-                          (Project           => Project,
-                           From_Project_Node => From_Project_Node,
-                           Pkg               => Pkg,
-                           First_Term        => Tree.First_Term (String_Node),
-                           Kind              => Single);
-
-                        String_Elements.Increment_Last;
-                        String_Elements.Table (Last).Next :=
-                          String_Elements.Last;
-                        Last := String_Elements.Last;
-                        String_Elements.Table (Last) :=
-                          (Value    => Value.Value,
-                           Location => Value.Location,
-                           Next     => Nil_String);
-                     end loop;
-
-                  end if;
-
-               end;
-
-            when N_Variable_Reference | N_Attribute_Reference =>
-
-               declare
-                  The_Project     : Project_Id  := Project;
-                  The_Package     : Package_Id  := Pkg;
-                  The_Name        : Name_Id     := No_Name;
-                  The_Variable_Id : Variable_Id := No_Variable;
-                  The_Variable    : Variable;
-                  Term_Project    : constant Project_Node_Id :=
-                                      Project_Node_Of (The_Current_Term);
-                  Term_Package    : constant Project_Node_Id :=
-                                      Package_Node_Of (The_Current_Term);
-
-               begin
-                  if Term_Project /= Empty_Node and then
-                     Term_Project /= From_Project_Node
-                  then
-                     --  This variable or attribute comes from another project
-
-                     The_Name := Name_Of (Term_Project);
-                     The_Project := Imported_Or_Modified_Project_From
-                       (Project => Project, With_Name => The_Name);
-                  end if;
-
-                  if Term_Package /= Empty_Node then
-
-                     --  This is an attribute of a package
-
-                     The_Name := Name_Of (Term_Package);
-                     The_Package := Projects.Table (The_Project).Decl.Packages;
-
-                     while The_Package /= No_Package
-                       and then Packages.Table (The_Package).Name /= The_Name
-                     loop
-                        The_Package := Packages.Table (The_Package).Next;
-                     end loop;
-
-                     pragma Assert
-                       (The_Package /= No_Package,
-                        "package not found.");
-
-                  elsif Kind_Of (The_Current_Term) = N_Attribute_Reference then
-                     The_Package := No_Package;
-                  end if;
-
-                  The_Name := Name_Of (The_Current_Term);
-
-                  if The_Package /= No_Package then
-
-                     --  First, if there is a package, look into the package
-
-                     if Kind_Of (The_Current_Term) = N_Variable_Reference then
-                        The_Variable_Id :=
-                          Packages.Table (The_Package).Decl.Variables;
-
-                     else
-                        The_Variable_Id :=
-                          Packages.Table (The_Package).Decl.Attributes;
-                     end if;
-
-                     while The_Variable_Id /= No_Variable
-                       and then
-                         Variable_Elements.Table (The_Variable_Id).Name /=
-                                                                    The_Name
-                     loop
-                        The_Variable_Id :=
-                          Variable_Elements.Table (The_Variable_Id).Next;
-                     end loop;
-
-                  end if;
-
-                  if The_Variable_Id = No_Variable then
-
-                     --  If we have not found it, look into the project
-
-                     if Kind_Of (The_Current_Term) = N_Variable_Reference then
-                        The_Variable_Id :=
-                          Projects.Table (The_Project).Decl.Variables;
-
-                     else
-                        The_Variable_Id :=
-                          Projects.Table (The_Project).Decl.Attributes;
-                     end if;
-
-                     while The_Variable_Id /= No_Variable
-                       and then
-                         Variable_Elements.Table (The_Variable_Id).Name /=
-                                                                     The_Name
-                     loop
-                        The_Variable_Id :=
-                          Variable_Elements.Table (The_Variable_Id).Next;
-                     end loop;
-
-                  end if;
-
-                  pragma Assert (The_Variable_Id /= No_Variable,
-                                 "variable or attribute not found");
-
-                  The_Variable := Variable_Elements.Table (The_Variable_Id);
-
-                  case Kind is
-
-                     when Undefined =>
-
-                        --  Should never happen
-
-                        pragma Assert (False, "undefined expression kind");
-                        null;
-
-                     when Single =>
-
-                        case The_Variable.Value.Kind is
-
-                           when Undefined =>
-                              null;
-
-                           when Single =>
-                              Add (Result.Value, The_Variable.Value.Value);
-
-                           when List =>
-
-                              --  Should never happen
-
-                              pragma Assert
-                                (False,
-                                 "list cannot appear in single " &
-                                 "string expression");
-                              null;
-
-                        end case;
-
-                     when List =>
-                        case The_Variable.Value.Kind is
-
-                           when Undefined =>
-                              null;
-
-                           when Single =>
-                              String_Elements.Increment_Last;
-
-                              if Last = Nil_String then
-
-                                 --  This can happen in an expression such as
-                                 --  () & Var
-
-                                 Result.Values := String_Elements.Last;
-
-                              else
-                                 String_Elements.Table (Last).Next :=
-                                   String_Elements.Last;
-                              end if;
-
-                              Last := String_Elements.Last;
-                              String_Elements.Table (Last) :=
-                                (Value    => The_Variable.Value.Value,
-                                 Location => Location_Of (The_Current_Term),
-                                 Next     => Nil_String);
-
-                           when List =>
-
-                              declare
-                                 The_List : String_List_Id :=
-                                              The_Variable.Value.Values;
-
-                              begin
-                                 while The_List /= Nil_String loop
-                                    String_Elements.Increment_Last;
-
-                                    if Last = Nil_String then
-                                       Result.Values := String_Elements.Last;
-
-                                    else
-                                       String_Elements.Table (Last).Next :=
-                                         String_Elements.Last;
-
-                                    end if;
-
-                                    Last := String_Elements.Last;
-                                    String_Elements.Table (Last) :=
-                                      (Value    =>
-                                         String_Elements.Table
-                                                          (The_List).Value,
-                                       Location => Location_Of
-                                                          (The_Current_Term),
-                                       Next     => Nil_String);
-                                    The_List :=
-                                      String_Elements.Table (The_List).Next;
-
-                                 end loop;
-                              end;
-                        end case;
-                  end case;
-               end;
-
-            when N_External_Value =>
-               String_To_Name_Buffer
-                 (String_Value_Of (External_Reference_Of (The_Current_Term)));
-
-               declare
-                  Name    : constant Name_Id  := Name_Find;
-                  Default : String_Id         := No_String;
-                  Value   : String_Id         := No_String;
-
-                  Default_Node : constant Project_Node_Id :=
-                                   External_Default_Of (The_Current_Term);
-
-               begin
-                  if Default_Node /= Empty_Node then
-                     Default := String_Value_Of (Default_Node);
-                  end if;
-
-                  Value := Prj.Ext.Value_Of (Name, Default);
-
-                  if Value = No_String then
-                     if Error_Report = null then
-                        Error_Msg
-                          ("undefined external reference",
-                           Location_Of (The_Current_Term));
-
-                     else
-                        Error_Report
-                          ("""" & Get_Name_String (Name) &
-                           """ is an undefined external reference");
-                     end if;
-
-                     Value := Empty_String;
-
-                  end if;
-
-                  case Kind is
-
-                     when Undefined =>
-                        null;
-
-                     when Single =>
-                        Add (Result.Value, Value);
-
-                     when List =>
-                        String_Elements.Increment_Last;
-
-                        if Last = Nil_String then
-                           Result.Values := String_Elements.Last;
-
-                        else
-                           String_Elements.Table (Last).Next :=
-                             String_Elements.Last;
-                        end if;
-
-                        Last := String_Elements.Last;
-                        String_Elements.Table (Last) :=
-                          (Value    => Value,
-                           Location => Location_Of (The_Current_Term),
-                           Next     => Nil_String);
-
-                  end case;
-
-               end;
-
-            when others =>
-
-               --  Should never happen
-
-               pragma Assert
-                 (False,
-                  "illegal node kind in an expression");
-               raise Program_Error;
-
-         end case;
-
-         The_Term := Next_Term (The_Term);
-      end loop;
-
-      return Result;
-   end Expression;
-
-   ---------------------------------------
-   -- Imported_Or_Modified_Project_From --
-   ---------------------------------------
-
-   function Imported_Or_Modified_Project_From
-     (Project   : Project_Id;
-      With_Name : Name_Id)
-      return      Project_Id
-   is
-      Data : constant Project_Data := Projects.Table (Project);
-      List : Project_List          := Data.Imported_Projects;
-
-   begin
-      --  First check if it is the name of a modified project
-
-      if Data.Modifies /= No_Project
-        and then Projects.Table (Data.Modifies).Name = With_Name
-      then
-         return Data.Modifies;
-
-      else
-         --  Then check the name of each imported project
-
-         while List /= Empty_Project_List
-           and then
-             Projects.Table
-               (Project_Lists.Table (List).Project).Name /= With_Name
-
-         loop
-            List := Project_Lists.Table (List).Next;
-         end loop;
-
-         pragma Assert
-           (List /= Empty_Project_List,
-           "project not found");
-
-         return Project_Lists.Table (List).Project;
-      end if;
-   end Imported_Or_Modified_Project_From;
-
-   ------------------
-   -- Package_From --
-   ------------------
-
-   function Package_From
-     (Project   : Project_Id;
-      With_Name : Name_Id)
-      return      Package_Id
-   is
-      Data   : constant Project_Data := Projects.Table (Project);
-      Result : Package_Id := Data.Decl.Packages;
-
-   begin
-      --  Check the name of each existing package of Project
-
-      while Result /= No_Package
-        and then
-        Packages.Table (Result).Name /= With_Name
-      loop
-         Result := Packages.Table (Result).Next;
-      end loop;
-
-      if Result = No_Package then
-         --  Should never happen
-         Write_Line ("package """ & Get_Name_String (With_Name) &
-                     """ not found");
-         raise Program_Error;
-
-      else
-         return Result;
-      end if;
-   end Package_From;
-
-   -------------
-   -- Process --
-   -------------
-
-   procedure Process
-     (Project           : out Project_Id;
-      From_Project_Node : Project_Node_Id;
-      Report_Error      : Put_Line_Access)
-   is
-   begin
-      Error_Report := Report_Error;
-
-      --  Make sure there is no projects in the data structure
-
-      Projects.Set_Last (No_Project);
-      Processed_Projects.Reset;
-
-      --  And process the main project and all of the projects it depends on,
-      --  recursively
-
-      Recursive_Process
-        (Project           => Project,
-         From_Project_Node => From_Project_Node,
-         Modified_By       => No_Project);
-
-      if Errout.Errors_Detected > 0 then
-         Project := No_Project;
-      end if;
-
-      if Project /= No_Project then
-         Check (Project);
-      end if;
-
-   end Process;
-
-   -------------------------------
-   -- Process_Declarative_Items --
-   -------------------------------
-
-   procedure Process_Declarative_Items
-     (Project           : Project_Id;
-      From_Project_Node : Project_Node_Id;
-      Pkg               : Package_Id;
-      Item              : Project_Node_Id) is
-
-      Current_Declarative_Item : Project_Node_Id := Item;
-
-      Current_Item : Project_Node_Id := Empty_Node;
-
-   begin
-      --  For each declarative item
-
-      while Current_Declarative_Item /= Empty_Node loop
-
-         --  Get its data
-
-         Current_Item := Current_Item_Node (Current_Declarative_Item);
-
-         --  And set Current_Declarative_Item to the next declarative item
-         --  ready for the next iteration
-
-         Current_Declarative_Item := Next_Declarative_Item
-                                            (Current_Declarative_Item);
-
-         case Kind_Of (Current_Item) is
-
-            when N_Package_Declaration =>
-               Packages.Increment_Last;
-
-               declare
-                  New_Pkg         : constant Package_Id := Packages.Last;
-                  The_New_Package : Package_Element;
-
-                  Project_Of_Renamed_Package : constant Project_Node_Id :=
-                                                 Project_Of_Renamed_Package_Of
-                                                   (Current_Item);
-
-               begin
-                  The_New_Package.Name := Name_Of (Current_Item);
-
-                  if Pkg /= No_Package then
-                     The_New_Package.Next :=
-                       Packages.Table (Pkg).Decl.Packages;
-                     Packages.Table (Pkg).Decl.Packages := New_Pkg;
-                  else
-                     The_New_Package.Next :=
-                       Projects.Table (Project).Decl.Packages;
-                     Projects.Table (Project).Decl.Packages := New_Pkg;
-                  end if;
-
-                  Packages.Table (New_Pkg) := The_New_Package;
-
-                  if Project_Of_Renamed_Package /= Empty_Node then
-
-                     --  Renamed package
-
-                     declare
-                        Project_Name : constant Name_Id :=
-                                         Name_Of
-                                           (Project_Of_Renamed_Package);
-
-                        Renamed_Project : constant Project_Id :=
-                                            Imported_Or_Modified_Project_From
-                                              (Project, Project_Name);
-
-                        Renamed_Package : constant Package_Id :=
-                                            Package_From
-                                              (Renamed_Project,
-                                               Name_Of (Current_Item));
-
-                     begin
-                        Packages.Table (New_Pkg).Decl :=
-                          Packages.Table (Renamed_Package).Decl;
-                     end;
-
-                  else
-                     --  Set the default values of the attributes
-
-                     Add_Attributes
-                       (Packages.Table (New_Pkg).Decl,
-                        Package_Attributes.Table
-                           (Package_Id_Of (Current_Item)).First_Attribute);
-
-                     Process_Declarative_Items
-                       (Project           => Project,
-                        From_Project_Node => From_Project_Node,
-                        Pkg               => New_Pkg,
-                        Item              => First_Declarative_Item_Of
-                                                             (Current_Item));
-                  end if;
-
-               end;
-
-            when N_String_Type_Declaration =>
-
-               --  There is nothing to process
-
-               null;
-
-            when N_Attribute_Declaration      |
-                 N_Typed_Variable_Declaration |
-                 N_Variable_Declaration       =>
-
-                  pragma Assert (Expression_Of (Current_Item) /= Empty_Node,
-                                 "no expression for an object declaration");
-
-               declare
-                  New_Value : constant Variable_Value :=
-                                Expression
-                                  (Project           => Project,
-                                   From_Project_Node => From_Project_Node,
-                                   Pkg               => Pkg,
-                                   First_Term        =>
-                                     Tree.First_Term (Expression_Of
-                                                              (Current_Item)),
-                                   Kind              =>
-                                     Expression_Kind_Of (Current_Item));
-
-                  The_Variable : Variable_Id := No_Variable;
-
-                  Current_Item_Name : constant Name_Id :=
-                                        Name_Of (Current_Item);
-
-               begin
-                  if Kind_Of (Current_Item) = N_Typed_Variable_Declaration then
-
-                     if String_Equal (New_Value.Value, Empty_String) then
-                        Error_Msg_Name_1 := Name_Of (Current_Item);
-
-                        if Error_Report = null then
-                           Error_Msg
-                             ("no value defined for %",
-                              Location_Of (Current_Item));
-
-                        else
-                           Error_Report
-                             ("no value defined for " &
-                              Get_Name_String (Error_Msg_Name_1));
-                        end if;
-
-                     else
-                        declare
-                           Current_String : Project_Node_Id :=
-                                              First_Literal_String
-                                                (String_Type_Of
-                                                  (Current_Item));
-
-                        begin
-                           while Current_String /= Empty_Node
-                             and then not String_Equal
-                                            (String_Value_Of (Current_String),
-                                             New_Value.Value)
-                           loop
-                              Current_String :=
-                                Next_Literal_String (Current_String);
-                           end loop;
-
-                           if Current_String = Empty_Node then
-                              String_To_Name_Buffer (New_Value.Value);
-                              Error_Msg_Name_1 := Name_Find;
-                              Error_Msg_Name_2 := Name_Of (Current_Item);
-
-                              if Error_Report = null then
-                                 Error_Msg
-                                   ("value { is illegal for typed string %",
-                                    Location_Of (Current_Item));
-
-                              else
-                                 Error_Report
-                                   ("value """ &
-                                    Get_Name_String (Error_Msg_Name_1) &
-                                    """ is illegal for typed string """ &
-                                    Get_Name_String (Error_Msg_Name_2) &
-                                    """");
-                              end if;
-                           end if;
-                        end;
-                     end if;
-                  end if;
-
-                  if Kind_Of (Current_Item) /= N_Attribute_Declaration
-                    or else
-                      Associative_Array_Index_Of (Current_Item) = No_String
-                  then
-                     --  Usual case
-
-                     --  Code below really needs more comments ???
-
-                     if Kind_Of (Current_Item) = N_Attribute_Declaration then
-                        if Pkg /= No_Package then
-                           The_Variable :=
-                             Packages.Table (Pkg).Decl.Attributes;
-
-                        else
-                           The_Variable :=
-                             Projects.Table (Project).Decl.Attributes;
-                        end if;
-
-                     else
-                        if Pkg /= No_Package then
-                           The_Variable :=
-                             Packages.Table (Pkg).Decl.Variables;
-
-                        else
-                           The_Variable :=
-                             Projects.Table (Project).Decl.Variables;
-                        end if;
-
-                     end if;
-
-                     while
-                       The_Variable /= No_Variable
-                         and then
-                           Variable_Elements.Table (The_Variable).Name /=
-                                                          Current_Item_Name
-                     loop
-                        The_Variable :=
-                          Variable_Elements.Table (The_Variable).Next;
-                     end loop;
-
-                     if The_Variable = No_Variable then
-                        pragma Assert
-                          (Kind_Of (Current_Item) /= N_Attribute_Declaration,
-                           "illegal attribute declaration");
-
-                        Variable_Elements.Increment_Last;
-                        The_Variable := Variable_Elements.Last;
-
-                        if Pkg /= No_Package then
-                           Variable_Elements.Table (The_Variable) :=
-                             (Next    =>
-                                Packages.Table (Pkg).Decl.Variables,
-                              Name    => Current_Item_Name,
-                              Value   => New_Value);
-                           Packages.Table (Pkg).Decl.Variables := The_Variable;
-
-                        else
-                           Variable_Elements.Table (The_Variable) :=
-                             (Next    =>
-                                Projects.Table (Project).Decl.Variables,
-                              Name    => Current_Item_Name,
-                              Value   => New_Value);
-                           Projects.Table (Project).Decl.Variables :=
-                             The_Variable;
-                        end if;
-
-                     else
-                        Variable_Elements.Table (The_Variable).Value :=
-                          New_Value;
-
-                     end if;
-
-                  else
-                     --  Associative array attribute
-
-                     String_To_Name_Buffer
-                       (Associative_Array_Index_Of (Current_Item));
-
-                     if Case_Insensitive (Current_Item) then
-                        GNAT.Case_Util.To_Lower (Name_Buffer (1 .. Name_Len));
-                     end if;
-
-                     declare
-                        The_Array : Array_Id;
-
-                        The_Array_Element : Array_Element_Id :=
-                                              No_Array_Element;
-
-                        Index_Name : constant Name_Id := Name_Find;
-
-                     begin
-
-                        if Pkg /= No_Package then
-                           The_Array := Packages.Table (Pkg).Decl.Arrays;
-
-                        else
-                           The_Array := Projects.Table (Project).Decl.Arrays;
-                        end if;
-
-                        while
-                          The_Array /= No_Array
-                            and then Arrays.Table (The_Array).Name /=
-                                                           Current_Item_Name
-                        loop
-                           The_Array := Arrays.Table (The_Array).Next;
-                        end loop;
-
-                        if The_Array = No_Array then
-                           Arrays.Increment_Last;
-                           The_Array := Arrays.Last;
-
-                           if Pkg /= No_Package then
-                              Arrays.Table (The_Array) :=
-                                (Name  => Current_Item_Name,
-                                 Value => No_Array_Element,
-                                 Next  => Packages.Table (Pkg).Decl.Arrays);
-                              Packages.Table (Pkg).Decl.Arrays := The_Array;
-
-                           else
-                              Arrays.Table (The_Array) :=
-                                (Name  => Current_Item_Name,
-                                 Value => No_Array_Element,
-                                 Next  =>
-                                   Projects.Table (Project).Decl.Arrays);
-                              Projects.Table (Project).Decl.Arrays :=
-                                The_Array;
-                           end if;
-
-                        else
-                           The_Array_Element := Arrays.Table (The_Array).Value;
-                        end if;
-
-                        while The_Array_Element /= No_Array_Element
-                          and then
-                            Array_Elements.Table (The_Array_Element).Index /=
-                                                                  Index_Name
-                        loop
-                           The_Array_Element :=
-                             Array_Elements.Table (The_Array_Element).Next;
-                        end loop;
-
-                        if The_Array_Element = No_Array_Element then
-                           Array_Elements.Increment_Last;
-                           The_Array_Element := Array_Elements.Last;
-                           Array_Elements.Table (The_Array_Element) :=
-                             (Index  => Index_Name,
-                              Value  => New_Value,
-                              Next   => Arrays.Table (The_Array).Value);
-                           Arrays.Table (The_Array).Value := The_Array_Element;
-
-                        else
-                           Array_Elements.Table (The_Array_Element).Value :=
-                             New_Value;
-                        end if;
-                     end;
-                  end if;
-               end;
-
-            when N_Case_Construction =>
-               declare
-                  The_Project   : Project_Id      := Project;
-                  The_Package   : Package_Id      := Pkg;
-                  The_Variable  : Variable_Value  := Nil_Variable_Value;
-                  Case_Value    : String_Id       := No_String;
-                  Case_Item     : Project_Node_Id := Empty_Node;
-                  Choice_String : Project_Node_Id := Empty_Node;
-                  Decl_Item     : Project_Node_Id := Empty_Node;
-
-               begin
-                  declare
-                     Variable_Node : constant Project_Node_Id :=
-                                       Case_Variable_Reference_Of
-                                         (Current_Item);
-
-                     Var_Id : Variable_Id := No_Variable;
-                     Name   : Name_Id     := No_Name;
-
-                  begin
-                     if Project_Node_Of (Variable_Node) /= Empty_Node then
-                        Name := Name_Of (Project_Node_Of (Variable_Node));
-                        The_Project :=
-                          Imported_Or_Modified_Project_From (Project, Name);
-                     end if;
-
-                     if Package_Node_Of (Variable_Node) /= Empty_Node then
-                        Name := Name_Of (Package_Node_Of (Variable_Node));
-                        The_Package := Package_From (The_Project, Name);
-                     end if;
-
-                     Name := Name_Of (Variable_Node);
-
-                     if The_Package /= No_Package then
-                        Var_Id := Packages.Table (The_Package).Decl.Variables;
-                        Name := Name_Of (Variable_Node);
-                        while Var_Id /= No_Variable
-                          and then
-                            Variable_Elements.Table (Var_Id).Name /= Name
-                        loop
-                           Var_Id := Variable_Elements.Table (Var_Id).Next;
-                        end loop;
-                     end if;
-
-                     if Var_Id = No_Variable
-                       and then Package_Node_Of (Variable_Node) = Empty_Node
-                     then
-                        Var_Id := Projects.Table (The_Project).Decl.Variables;
-                        while Var_Id /= No_Variable
-                          and then
-                            Variable_Elements.Table (Var_Id).Name /= Name
-                        loop
-                           Var_Id := Variable_Elements.Table (Var_Id).Next;
-                        end loop;
-                     end if;
-
-                     if Var_Id = No_Variable then
-
-                        --  Should never happen
-
-                        Write_Line ("variable """ &
-                                    Get_Name_String (Name) &
-                                    """ not found");
-                        raise Program_Error;
-                     end if;
-
-                     The_Variable := Variable_Elements.Table (Var_Id).Value;
-
-                     if The_Variable.Kind /= Single then
-
-                        --  Should never happen
-
-                        Write_Line ("variable""" &
-                                    Get_Name_String (Name) &
-                                    """ is not a single string variable");
-                        raise Program_Error;
-                     end if;
-
-                     Case_Value := The_Variable.Value;
-                  end;
-
-                  Case_Item := First_Case_Item_Of (Current_Item);
-                  Case_Item_Loop :
-                     while Case_Item /= Empty_Node loop
-                        Choice_String := First_Choice_Of (Case_Item);
-
-                        if Choice_String = Empty_Node then
-                           Decl_Item := First_Declarative_Item_Of (Case_Item);
-                           exit Case_Item_Loop;
-                        end if;
-
-                        Choice_Loop :
-                           while Choice_String /= Empty_Node loop
-                              if String_Equal (Case_Value,
-                                               String_Value_Of (Choice_String))
-                              then
-                                 Decl_Item :=
-                                   First_Declarative_Item_Of (Case_Item);
-                                 exit Case_Item_Loop;
-                              end if;
-
-                              Choice_String :=
-                                Next_Literal_String (Choice_String);
-                           end loop Choice_Loop;
-                        Case_Item := Next_Case_Item (Case_Item);
-                     end loop Case_Item_Loop;
-
-                  if Decl_Item /= Empty_Node then
-                     Process_Declarative_Items
-                       (Project           => Project,
-                        From_Project_Node => From_Project_Node,
-                        Pkg               => Pkg,
-                        Item              => Decl_Item);
-                  end if;
-               end;
-
-            when others =>
-
-               --  Should never happen
-
-               Write_Line ("Illegal declarative item: " &
-                           Project_Node_Kind'Image (Kind_Of (Current_Item)));
-               raise Program_Error;
-         end case;
-      end loop;
-   end Process_Declarative_Items;
-
-   ---------------------
-   -- Recursive_Check --
-   ---------------------
-
-   procedure Recursive_Check (Project : Project_Id) is
-      Data                  : Project_Data;
-      Imported_Project_List : Project_List := Empty_Project_List;
-
-   begin
-      --  Do nothing if Project is No_Project, or Project has already
-      --  been marked as checked.
-
-      if Project /= No_Project
-        and then not Projects.Table (Project).Checked
-      then
-         Data := Projects.Table (Project);
-
-         --  Call itself for a possible modified project.
-         --  (if there is no modified project, then nothing happens).
-
-         Recursive_Check (Data.Modifies);
-
-         --  Call itself for all imported projects
-
-         Imported_Project_List := Data.Imported_Projects;
-         while Imported_Project_List /= Empty_Project_List loop
-            Recursive_Check
-              (Project_Lists.Table (Imported_Project_List).Project);
-            Imported_Project_List :=
-              Project_Lists.Table (Imported_Project_List).Next;
-         end loop;
-
-         --  Mark project as checked
-
-         Projects.Table (Project).Checked := True;
-
-         if Opt.Verbose_Mode then
-            Write_Str ("Checking project file """);
-            Write_Str (Get_Name_String (Data.Name));
-            Write_Line ("""");
-         end if;
-
-         Prj.Nmsc.Ada_Check (Project, Error_Report);
-      end if;
-   end Recursive_Check;
-
-   -----------------------
-   -- Recursive_Process --
-   -----------------------
-
-   procedure Recursive_Process
-     (Project           : out Project_Id;
-      From_Project_Node : Project_Node_Id;
-      Modified_By       : Project_Id)
-   is
-      With_Clause : Project_Node_Id;
-
-   begin
-      if From_Project_Node = Empty_Node then
-         Project := No_Project;
-
-      else
-         declare
-            Processed_Data   : Project_Data := Empty_Project;
-            Imported         : Project_List := Empty_Project_List;
-            Declaration_Node : Project_Node_Id := Empty_Node;
-            Name             : constant Name_Id :=
-                                 Name_Of (From_Project_Node);
-
-         begin
-            Project := Processed_Projects.Get (Name);
-
-            if Project /= No_Project then
-               return;
-            end if;
-
-            Projects.Increment_Last;
-            Project := Projects.Last;
-            Processed_Projects.Set (Name, Project);
-            Processed_Data.Name        := Name;
-            Processed_Data.Path_Name   := Path_Name_Of (From_Project_Node);
-            Processed_Data.Location    := Location_Of (From_Project_Node);
-            Processed_Data.Directory   := Directory_Of (From_Project_Node);
-            Processed_Data.Modified_By := Modified_By;
-            Add_Attributes (Processed_Data.Decl, Attribute_First);
-            With_Clause := First_With_Clause_Of (From_Project_Node);
-
-            while With_Clause /= Empty_Node loop
-               declare
-                  New_Project : Project_Id;
-                  New_Data    : Project_Data;
-
-               begin
-                  Recursive_Process
-                    (Project           => New_Project,
-                     From_Project_Node => Project_Node_Of (With_Clause),
-                     Modified_By       => No_Project);
-                  New_Data := Projects.Table (New_Project);
-
-                  --  If we were the first project to import it,
-                  --  set First_Referred_By to us.
-
-                  if New_Data.First_Referred_By = No_Project then
-                     New_Data.First_Referred_By := Project;
-                     Projects.Table (New_Project) := New_Data;
-                  end if;
-
-                  --  Add this project to our list of imported projects
-
-                  Project_Lists.Increment_Last;
-                  Project_Lists.Table (Project_Lists.Last) :=
-                    (Project => New_Project, Next => Empty_Project_List);
-
-                  --  Imported is the id of the last imported project.
-                  --  If it is nil, then this imported project is our first.
-
-                  if Imported = Empty_Project_List then
-                     Processed_Data.Imported_Projects := Project_Lists.Last;
-
-                  else
-                     Project_Lists.Table (Imported).Next := Project_Lists.Last;
-                  end if;
-
-                  Imported := Project_Lists.Last;
-
-                  With_Clause := Next_With_Clause_Of (With_Clause);
-               end;
-            end loop;
-
-            Declaration_Node := Project_Declaration_Of (From_Project_Node);
-
-            Recursive_Process
-              (Project           => Processed_Data.Modifies,
-               From_Project_Node => Modified_Project_Of (Declaration_Node),
-               Modified_By       => Project);
-
-            Projects.Table (Project) := Processed_Data;
-
-            Process_Declarative_Items
-              (Project           => Project,
-               From_Project_Node => From_Project_Node,
-               Pkg               => No_Package,
-               Item              => First_Declarative_Item_Of
-                                      (Declaration_Node));
-
-         end;
-      end if;
-   end Recursive_Process;
-
-end Prj.Proc;