gcc/ada/prj-pars.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                              P R J . P A R S                             --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 2000-2011, 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 --  General wrapper for the parsing of project files
  27
  28 with Prj.Tree;
  29
  30 package Prj.Pars is
  31
  32    procedure Set_Verbosity (To : Verbosity);
  33    --  Set the verbosity when parsing the project files
  34
  35    procedure Parse
  36      (In_Tree           : Project_Tree_Ref;
  37       Project           : out Project_Id;
  38       Project_File_Name : String;
  39       Packages_To_Check : String_List_Access;
  40       Reset_Tree        : Boolean := True;
  41       In_Node_Tree      : Prj.Tree.Project_Node_Tree_Ref := null;
  42       Env               : in out Prj.Tree.Environment);
  43    --  Parse and process a project files and all its imported project files, in
  44    --  the project tree In_Tree.
  45    --
  46    --  All the project files are parsed (through Prj.Tree) to create a tree in
  47    --  memory. That tree is then processed (through Prj.Proc) to create a
  48    --  expanded representation of the tree based on the current external
  49    --  references. This function is only a convenient wrapper over other
  50    --  services provided in the Prj.* package hierarchy.
  51    --
  52    --  If parsing is successful, Project is the project ID of the root project
  53    --  file; otherwise, Project_Id is set to No_Project. Project_Node_Tree is
  54    --  set to the tree (unprocessed) representation of the project file. This
  55    --  tree is permanently correct, whereas Project will need to be recomputed
  56    --  if the external references change.
  57    --
  58    --  Packages_To_Check indicates the packages where any unknown attribute
  59    --  produces an error. For other packages, an unknown attribute produces a
  60    --  warning.
  61    --
  62    --  When Reset_Tree is True, all the project data are removed from the
  63    --  project table before processing.
  64    --
  65    --  In_Node_Tree (if given) must have been Initialized. The main reason to
  66    --  pass an existing tree, is to pass the external references that will then
  67    --  be used to process the tree.
  68
  69 end Prj.Pars;