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------------------------------------------------------------------------------

--                                                                          --

--                         GNAT COMPILER COMPONENTS                         --

--                                                                          --

--                             P R J . P A R S                              --

--                                                                          --

--                                 B o d y                                  --

--                                                                          --

--          Copyright (C) 2001-2011, 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 3,  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 COPYING3.  If not, go to --

-- http://www.gnu.org/licenses for a complete copy of the license.          --

--                                                                          --

-- GNAT was originally developed  by the GNAT team at  New York University. --

-- Extensive contributions were provided by Ada Core Technologies Inc.      --

--                                                                          --

------------------------------------------------------------------------------

with Ada.Exceptions; use Ada.Exceptions;

with GNAT.Directory_Operations; use GNAT.Directory_Operations;

with Output;   use Output;

with Prj.Conf; use Prj.Conf;

with Prj.Err;  use Prj.Err;

with Prj.Part;

with Prj.Tree; use Prj.Tree;

with Sinput.P;

package body Prj.Pars is

   -----------

   -- Parse --

   -----------

   procedure Parse

     (In_Tree           : Project_Tree_Ref;

      Project           : out Project_Id;

      Project_File_Name : String;

      Packages_To_Check : String_List_Access;

      Reset_Tree        : Boolean := True;

      In_Node_Tree      : Prj.Tree.Project_Node_Tree_Ref := null;

      Env               : in out Prj.Tree.Environment)

   is

      Project_Node            : Project_Node_Id := Empty_Node;

      The_Project             : Project_Id      := No_Project;

      Success                 : Boolean         := True;

      Current_Dir             : constant String := Get_Current_Dir;

      Project_Node_Tree       : Prj.Tree.Project_Node_Tree_Ref := In_Node_Tree;

      Automatically_Generated : Boolean;

      Config_File_Path        : String_Access;

   begin

      if Project_Node_Tree = null then

         Project_Node_Tree := new Project_Node_Tree_Data;

         Prj.Tree.Initialize (Project_Node_Tree);

      end if;

      --  Parse the main project file into a tree

      Sinput.P.Reset_First;

      Prj.Part.Parse

        (In_Tree                => Project_Node_Tree,

         Project                => Project_Node,

         Project_File_Name      => Project_File_Name,

         Errout_Handling        => Prj.Part.Finalize_If_Error,

         Packages_To_Check      => Packages_To_Check,

         Current_Directory      => Current_Dir,

         Env                    => Env,

         Is_Config_File         => False);

      --  If there were no error, process the tree

      if Project_Node /= Empty_Node then

         begin

            --  No config file should be read from the disk for gnatmake.

            --  However, we will simulate one that only contains the

            --  default GNAT naming scheme.

            Process_Project_And_Apply_Config

              (Main_Project               => The_Project,

               User_Project_Node          => Project_Node,

               Config_File_Name           => "",

               Autoconf_Specified         => False,

               Project_Tree               => In_Tree,

               Project_Node_Tree          => Project_Node_Tree,

               Packages_To_Check          => null,

               Allow_Automatic_Generation => False,

               Automatically_Generated    => Automatically_Generated,

               Config_File_Path           => Config_File_Path,

               Env                        => Env,

               Normalized_Hostname        => "",

               On_Load_Config             =>

                 Add_Default_GNAT_Naming_Scheme'Access,

               Reset_Tree                 => Reset_Tree);

            Success := The_Project /= No_Project;

         exception

            when Invalid_Config =>

               Success := False;

         end;

         Prj.Err.Finalize;

         if not Success then

            The_Project := No_Project;

         end if;

      end if;

      Project := The_Project;

      --  ??? Should free the project_node_tree, no longer useful

   exception

      when X : others =>

         --  Internal error

         Write_Line (Exception_Information (X));

         Write_Str  ("Exception ");

         Write_Str  (Exception_Name (X));

         Write_Line (" raised, while processing project file");

         Project := No_Project;

   end Parse;

   -------------------

   -- Set_Verbosity --

   -------------------

   procedure Set_Verbosity (To : Verbosity) is

   begin

      Current_Verbosity := To;

   end Set_Verbosity;

end Prj.Pars;