gcc/ada/fmap.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                                 F M A P                                  --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --            Copyright (C) 2001-2003, 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,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, 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 --  This package keeps two mappings: from unit names to file names,
  28 --  and from file names to path names.
  29
  30 with Types; use Types;
  31
  32 package Fmap is
  33
  34    procedure Initialize (File_Name : String);
  35    --  Initialize the mappings from the mapping file File_Name.
  36    --  If the mapping file is incorrect (non existent file, truncated file,
  37    --  duplicate entries), output a warning and do not initialize the mappings.
  38    --  Record the state of the mapping tables in case Update is called
  39    --  later on.
  40
  41    function Mapped_Path_Name (File : File_Name_Type) return File_Name_Type;
  42    --  Return the path name mapped to the file name File.
  43    --  Return No_File if File is not mapped.
  44
  45    function Mapped_File_Name (Unit : Unit_Name_Type) return File_Name_Type;
  46    --  Return the file name mapped to the unit name Unit.
  47    --  Return No_File if Unit is not mapped.
  48    --  Return Error_Name if it is forbidden.
  49
  50    procedure Add_To_File_Map
  51      (Unit_Name : Unit_Name_Type;
  52       File_Name : File_Name_Type;
  53       Path_Name : File_Name_Type);
  54    --  Add mapping of Unit_Name to File_Name and of File_Name to Path_Name
  55
  56    procedure Update_Mapping_File (File_Name : String);
  57    --  If Add_To_File_Map has been called (after Initialize or any time
  58    --  if Initialize has not been called), append the new entries to the
  59    --  mapping file whose file name is File_Name.
  60
  61    procedure Reset_Tables;
  62    --  Initialize all the internal data structures. This procedure is used
  63    --  when several compilations are performed by the same process (by GNSA
  64    --  for ASIS, for example) to remove any existing mappings from a previous
  65    --  compilation.
  66
  67    procedure Add_Forbidden_File_Name (Name : Name_Id);
  68    --  Indicate that a source file name is forbidden.
  69    --  This is used by gnatmake when there are Locally_Removed_Files in
  70    --  extending projects.
  71
  72    procedure Remove_Forbidden_File_Name (Name : Name_Id);
  73    --  Indicate that a source file name that was forbidden is no longer
  74    --  forbidden. Used by gnatmake when a locally removed file is redefined
  75    --  in another extending project.
  76
  77 end Fmap;