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------------------------------------------------------------------------------

--                                                                          --

--                         GNAT COMPILER COMPONENTS                         --

--                                                                          --

--                                F N A M E                                 --

--                                                                          --

--                                 S p e c                                  --

--                                                                          --

--          Copyright (C) 1992-2009, Free Software Foundation, Inc.         --

--                                                                          --

-- GNAT is free software;  you can  redistribute it  and/or modify it under --

-- terms of the  GNU General Public License as published  by the Free Soft- --

-- ware  Foundation;  either version 3,  or (at your option) any later ver- --

-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --

-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --

-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --

--                                                                          --

-- As a special exception under Section 7 of GPL version 3, you are granted --

-- additional permissions described in the GCC Runtime Library Exception,   --

-- version 3.1, as published by the Free Software Foundation.               --

--                                                                          --

-- You should have received a copy of the GNU General Public License and    --

-- a copy of the GCC Runtime Library Exception along with this program;     --

-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --

-- <http://www.gnu.org/licenses/>.                                          --

--                                                                          --

-- GNAT was originally developed  by the GNAT team at  New York University. --

-- Extensive contributions were provided by Ada Core Technologies Inc.      --

--                                                                          --

------------------------------------------------------------------------------

--  This package, together with its child package Fname.UF define the

--  association between source file names and unit names as defined

--  (see package Uname for definition of format of unit names).

with Namet; use Namet;

package Fname is

   --  Note: this package spec does not depend on the Uname spec in the Ada

   --  sense, but the comments and description of the semantics do depend on

   --  the conventions established by Uname.

   ---------------------------

   -- File Name Conventions --

   ---------------------------

   --  GNAT requires that there be a one to one correspondence between source

   --  file names (as used in the Osint package interface) and unit names as

   --  defined by the Uname package. This correspondence is defined by the

   --  two subprograms defined here in the Fname package.

   --   For full rules of file naming, see GNAT User's Guide. Note that the

   --   naming rules are affected by the presence of Source_File_Name pragmas

   --   that have been previously processed.

   --  Note that the file name does *not* include the directory name. The

   --  management of directories is provided by Osint, and full file names

   --  are used only for error message purposes within GNAT itself.

   -----------------

   -- Subprograms --

   -----------------

   function Is_Predefined_File_Name

     (Fname              : File_Name_Type;

      Renamings_Included : Boolean := True) return Boolean;

   --  This function determines if the given file name (which must be a simple

   --  file name with no directory information) is the file name for one of the

   --  predefined library units (i.e. part of the Ada, System, or Interface

   --  hierarchies). Note that units in the GNAT hierarchy are not considered

   --  predefined (see Is_Internal_File_Name below). On return, Name_Buffer

   --  contains the file name. The Renamings_Included parameter indicates

   --  whether annex J renamings such as Text_IO are to be considered as

   --  predefined. If Renamings_Included is True, then Text_IO will return

   --  True, otherwise only children of Ada, Interfaces and System return True.

   function Is_Predefined_File_Name

     (Renamings_Included : Boolean := True) return Boolean;

   --  This version is called with the file name already in Name_Buffer

   function Is_Internal_File_Name

     (Fname              : File_Name_Type;

      Renamings_Included : Boolean := True) return Boolean;

   --  Similar to Is_Predefined_File_Name. The internal file set is a superset

   --  of the predefined file set including children of GNAT, and also children

   --  of DEC for the VMS case.

   procedure Tree_Read;

   --  Dummy procedure (reads dummy table values from tree file)

   procedure Tree_Write;

   --  Writes out internal tables to current tree file using Tree_Write

   --  This is actually a dummy routine, since the relevant table is

   --  no longer used, but we retain it for now, to avoid a tree file

   --  incompatibility with the 3.13 compiler. Should be removed for

   --  the 3.14a release ???

end Fname;