gcc/ada/prj-ext.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                              P R J . E X T                               --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --             Copyright (C) 2000-2004 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 2,  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 COPYING.  If not, write --
  19 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  20 -- MA 02111-1307, USA.                                                      --
  21 --                                                                          --
  22 -- GNAT was originally developed  by the GNAT team at  New York University. --
  23 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  24 --                                                                          --
  25 ------------------------------------------------------------------------------
  26
  27 --  Subprograms to set, get and cache external references, to be used as
  28 --  External functions in project files.
  29
  30 with Types; use Types;
  31
  32 package Prj.Ext is
  33
  34    function Project_Path return String;
  35    --  Return the current value of the project path, either the value set
  36    --  during elaboration of the package or, if procedure Set_Project_Path has
  37    --  been called, the value set by the last call to Set_Project_Path.
  38
  39    procedure Set_Project_Path (New_Path : String);
  40    --  Give a new value to the project path. The new value New_Path should
  41    --  always start with the current directory (".") and the path separators
  42    --  should be the correct ones for the platform.
  43
  44    procedure Add
  45      (External_Name : String;
  46       Value         : String);
  47    --  Add an external reference (or modify an existing one).
  48
  49    function Value_Of
  50      (External_Name : Name_Id;
  51       With_Default  : Name_Id := No_Name)
  52       return          Name_Id;
  53    --  Get the value of an external reference, and cache it for future uses.
  54
  55    function Check (Declaration : String) return Boolean;
  56    --  Check that an external declaration <external>=<value> is correct.
  57    --  If it is correct, the external reference is Added.
  58
  59    procedure Reset;
  60    --  Clear the internal data structure that stores the external references
  61    --  and free any allocated memory.
  62
  63 end Prj.Ext;