1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 2000-2007, Free Software Foundation, Inc. --
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. --
21 -- GNAT was originally developed by the GNAT team at New York University. --
22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
24 ------------------------------------------------------------------------------
26 -- Implements the parsing of project files into a tree
28 with Prj.Tree; use Prj.Tree;
33 (In_Tree : Project_Node_Tree_Ref;
34 Project : out Project_Node_Id;
35 Project_File_Name : String;
36 Always_Errout_Finalize : Boolean;
37 Packages_To_Check : String_List_Access := All_Packages;
38 Store_Comments : Boolean := False;
39 Current_Directory : String := "");
40 -- Parse project file and all its imported project files and create a tree.
41 -- Return the node for the project (or Empty_Node if parsing failed). If
42 -- Always_Errout_Finalize is True, Errout.Finalize is called in all cases,
43 -- Otherwise, Errout.Finalize is only called if there are errors (but not
44 -- if there are only warnings). Packages_To_Check indicates the packages
45 -- where any unknown attribute produces an error. For other packages, an
46 -- unknown attribute produces a warning. When Store_Comments is True,
47 -- comments are stored in the parse tree.
49 -- Current_Directory is used for optimization purposes only, avoiding extra
52 type Extension_Origin is (None, Extending_Simple, Extending_All);
53 -- Type of parameter From_Extended for procedures Parse_Single_Project and
54 -- Post_Parse_Context_Clause. Extending_All means that we are parsing the
55 -- tree rooted at an extending all project.
57 procedure Parse_Single_Project
58 (In_Tree : Project_Node_Tree_Ref;
59 Project : out Project_Node_Id;
60 Extends_All : out Boolean;
63 From_Extended : Extension_Origin;
65 Packages_To_Check : String_List_Access;
67 Current_Dir : String);
68 -- Parse a project file.
69 -- Recursive procedure: it calls itself for imported and extended
70 -- projects. When From_Extended is not None, if the project has already
71 -- been parsed and is an extended project A, return the ultimate
72 -- (not extended) project that extends A. When In_Limited is True,
73 -- the importing path includes at least one "limited with".
74 -- When parsing configuration projects, do not allow a depth > 1.