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2009-07-13 Emmanuel Briot <briot@adacore.com>
[pf3gnuchains/gcc-fork.git] / 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) 2001-2009, 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 := All_Packages;
47       When_No_Sources   : Error_Warning := Error;
48       Report_Error      : Put_Line_Access := null;
49       Reset_Tree        : Boolean := True)
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;
56       Automatically_Generated : Boolean;
57       Config_File_Path        : String_Access;
58    begin
59       Project_Node_Tree := new Project_Node_Tree_Data;
60       Prj.Tree.Initialize (Project_Node_Tree);
61
62       --  Parse the main project file into a tree
63
64       Sinput.P.Reset_First;
65       Prj.Part.Parse
66         (In_Tree                => Project_Node_Tree,
67          Project                => Project_Node,
68          Project_File_Name      => Project_File_Name,
69          Always_Errout_Finalize => False,
70          Packages_To_Check      => Packages_To_Check,
71          Current_Directory      => Current_Dir,
72          Is_Config_File         => False);
73
74       --  If there were no error, process the tree
75
76       if Project_Node /= Empty_Node then
77          begin
78             --  No config file should be read from the disk for gnatmake.
79             --  However, we will simulate one that only contains the
80             --  default GNAT naming scheme.
81
82             Process_Project_And_Apply_Config
83               (Main_Project               => The_Project,
84                User_Project_Node          => Project_Node,
85                Config_File_Name           => "",
86                Autoconf_Specified         => False,
87                Project_Tree               => In_Tree,
88                Project_Node_Tree          => Project_Node_Tree,
89                Packages_To_Check          => null,
90                Allow_Automatic_Generation => False,
91                Automatically_Generated    => Automatically_Generated,
92                Config_File_Path           => Config_File_Path,
93                Report_Error               => Report_Error,
94                Normalized_Hostname        => "",
95                Compiler_Driver_Mandatory  => False,
96                Allow_Duplicate_Basenames  => False,
97                On_Load_Config             =>
98                  Add_Default_GNAT_Naming_Scheme'Access,
99                Reset_Tree                 => Reset_Tree,
100                When_No_Sources            => When_No_Sources);
101
102             Success := The_Project /= No_Project;
103
104          exception
105             when Invalid_Config =>
106                Success := False;
107          end;
108
109          Prj.Err.Finalize;
110
111          if not Success then
112             The_Project := No_Project;
113          end if;
114       end if;
115
116       Project := The_Project;
117
118       --  ??? Should free the project_node_tree, no longer useful
119
120    exception
121       when X : others =>
122
123          --  Internal error
124
125          Write_Line (Exception_Information (X));
126          Write_Str  ("Exception ");
127          Write_Str  (Exception_Name (X));
128          Write_Line (" raised, while processing project file");
129          Project := No_Project;
130    end Parse;
131
132    -------------------
133    -- Set_Verbosity --
134    -------------------
135
136    procedure Set_Verbosity (To : Verbosity) is
137    begin
138       Current_Verbosity := To;
139    end Set_Verbosity;
140
141 end Prj.Pars;