Initial check-in of gcc 4.7.2.

Change-Id: I4a2f5a921c21741a0e18bda986d77e5f1bef0365

1 files changed, 82 insertions, 0 deletions

diff --git a/gcc-4.7/gcc/ada/sinput-p.ads b/gcc-4.7/gcc/ada/sinput-p.ads
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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                             S I N P U T . P                              --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--          Copyright (C) 1992-2010, 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.  See the GNU General Public License --
+-- for  more details.  You should have  received  a copy of the GNU General --
+-- Public License  distributed with GNAT; see file COPYING3.  If not, go to --
+-- http://www.gnu.org/licenses for a complete copy of the license.          --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This child package contains the routines used to actually load a project
+--  file and create entries in the source file table. It also contains two
+--  routines to save and restore a project scan context.
+
+with Scans; use Scans;
+
+package Sinput.P is
+
+   procedure Clear_Source_File_Table;
+   --  This procedure frees memory allocated in the Source_File table (in the
+   --  private part of package Sinput). It should only be used when it is
+   --  guaranteed that all source files that have been loaded so far will not
+   --  be accessed before being reloaded. It is intended for tools that parse
+   --  several times sources, to avoid memory leaks.
+
+   function Load_Project_File (Path : String) return Source_File_Index;
+   --  Load the source of a project source file into memory and initialize the
+   --  Scans state.
+
+   procedure Reset_First;
+   --  Indicate that the next project loaded should be considered as the first
+   --  one, so that Sinput.Main_Source_File is set for this project file. This
+   --  is to get the correct number of lines when error finalization is called.
+
+   function Source_File_Is_Subunit (X : Source_File_Index) return Boolean;
+   --  This function determines if a source file represents a subunit. It works
+   --  by scanning for the first compilation unit token, and returning True if
+   --  it is the token SEPARATE. It will return False otherwise, meaning that
+   --  the file cannot possibly be a legal subunit. This function does NOT do a
+   --  complete parse of the file, or build a tree. It is used in gnatmake and
+   --  gprbuild to decide if a body without a spec in a project file needs to
+   --  be compiled or not. Returns False if X = No_Source_File.
+
+   type Saved_Project_Scan_State is limited private;
+   --  Used to save project scan state in following two routines
+
+   procedure Save_Project_Scan_State
+     (Saved_State : out Saved_Project_Scan_State);
+   pragma Inline (Save_Project_Scan_State);
+   --  Save the Scans state, as well as the values of Source and
+   --  Current_Source_File.
+
+   procedure Restore_Project_Scan_State
+     (Saved_State : Saved_Project_Scan_State);
+   pragma Inline (Restore_Project_Scan_State);
+   --  Restore the Scans state and the values of Source and
+   --  Current_Source_File.
+
+private
+
+   type Saved_Project_Scan_State is record
+      Scan_State          : Saved_Scan_State;
+      Source              : Source_Buffer_Ptr;
+      Current_Source_File : Source_File_Index;
+   end record;
+
+end Sinput.P;