gcc/ada/prj-pars.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             P R J . P A R S                              --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --          Copyright (C) 2001-2011, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 3,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT; see file COPYING3.  If not, go to --
  19 -- http://www.gnu.org/licenses for a complete copy of the license.          --
  20 --                                                                          --
  21 -- GNAT was originally developed  by the GNAT team at  New York University. --
  22 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  23 --                                                                          --
  24 ------------------------------------------------------------------------------
  25
  26 with Ada.Exceptions; use Ada.Exceptions;
  27 with GNAT.Directory_Operations; use GNAT.Directory_Operations;
  28
  29 with Output;   use Output;
  30 with Prj.Conf; use Prj.Conf;
  31 with Prj.Err;  use Prj.Err;
  32 with Prj.Part;
  33 with Prj.Tree; use Prj.Tree;
  34 with Sinput.P;
  35
  36 package body Prj.Pars is
  37
  38    -----------
  39    -- Parse --
  40    -----------
  41
  42    procedure Parse
  43      (In_Tree           : Project_Tree_Ref;
  44       Project           : out Project_Id;
  45       Project_File_Name : String;
  46       Packages_To_Check : String_List_Access;
  47       Reset_Tree        : Boolean := True;
  48       In_Node_Tree      : Prj.Tree.Project_Node_Tree_Ref := null;
  49       Env               : in out Prj.Tree.Environment)
  50    is
  51       Project_Node            : Project_Node_Id := Empty_Node;
  52       The_Project             : Project_Id      := No_Project;
  53       Success                 : Boolean         := True;
  54       Current_Dir             : constant String := Get_Current_Dir;
  55       Project_Node_Tree       : Prj.Tree.Project_Node_Tree_Ref := In_Node_Tree;
  56       Automatically_Generated : Boolean;
  57       Config_File_Path        : String_Access;
  58
  59    begin
  60       if Project_Node_Tree = null then
  61          Project_Node_Tree := new Project_Node_Tree_Data;
  62          Prj.Tree.Initialize (Project_Node_Tree);
  63       end if;
  64
  65       --  Parse the main project file into a tree
  66
  67       Sinput.P.Reset_First;
  68       Prj.Part.Parse
  69         (In_Tree                => Project_Node_Tree,
  70          Project                => Project_Node,
  71          Project_File_Name      => Project_File_Name,
  72          Errout_Handling        => Prj.Part.Finalize_If_Error,
  73          Packages_To_Check      => Packages_To_Check,
  74          Current_Directory      => Current_Dir,
  75          Env                    => Env,
  76          Is_Config_File         => False);
  77
  78       --  If there were no error, process the tree
  79
  80       if Project_Node /= Empty_Node then
  81          begin
  82             --  No config file should be read from the disk for gnatmake.
  83             --  However, we will simulate one that only contains the
  84             --  default GNAT naming scheme.
  85
  86             Process_Project_And_Apply_Config
  87               (Main_Project               => The_Project,
  88                User_Project_Node          => Project_Node,
  89                Config_File_Name           => "",
  90                Autoconf_Specified         => False,
  91                Project_Tree               => In_Tree,
  92                Project_Node_Tree          => Project_Node_Tree,
  93                Packages_To_Check          => null,
  94                Allow_Automatic_Generation => False,
  95                Automatically_Generated    => Automatically_Generated,
  96                Config_File_Path           => Config_File_Path,
  97                Env                        => Env,
  98                Normalized_Hostname        => "",
  99                On_Load_Config             =>
 100                  Add_Default_GNAT_Naming_Scheme'Access,
 101                Reset_Tree                 => Reset_Tree);
 102
 103             Success := The_Project /= No_Project;
 104
 105          exception
 106             when Invalid_Config =>
 107                Success := False;
 108          end;
 109
 110          Prj.Err.Finalize;
 111
 112          if not Success then
 113             The_Project := No_Project;
 114          end if;
 115       end if;
 116
 117       Project := The_Project;
 118
 119       --  ??? Should free the project_node_tree, no longer useful
 120
 121    exception
 122       when X : others =>
 123
 124          --  Internal error
 125
 126          Write_Line (Exception_Information (X));
 127          Write_Str  ("Exception ");
 128          Write_Str  (Exception_Name (X));
 129          Write_Line (" raised, while processing project file");
 130          Project := No_Project;
 131    end Parse;
 132
 133    -------------------
 134    -- Set_Verbosity --
 135    -------------------
 136
 137    procedure Set_Verbosity (To : Verbosity) is
 138    begin
 139       Current_Verbosity := To;
 140    end Set_Verbosity;
 141
 142 end Prj.Pars;