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

--                                                                          --

--                         GNAT COMPILER COMPONENTS                         --

--                                                                          --

--                             S I N P U T . D                              --

--                                                                          --

--                                 B o d y                                  --

--                                                                          --

--          Copyright (C) 2002-2007, 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.      --

--                                                                          --

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

with Osint;   use Osint;

with Osint.C; use Osint.C;

package body Sinput.D is

   Dfile : Source_File_Index;

   --  Index of currently active debug source file

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

   -- Close_Debug_Source --

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

   procedure Close_Debug_Source is

      S    : Source_File_Record renames Source_File.Table (Dfile);

      Src  : Source_Buffer_Ptr;

      pragma Warnings (Off, S);

   begin

      Trim_Lines_Table (Dfile);

      Close_Debug_File;

      --  Now we need to read the file that we wrote and store it in memory for

      --  subsequent access.

      Read_Source_File

        (S.Full_Debug_Name, S.Source_First, S.Source_Last, Src);

      S.Source_Text := Src;

   end Close_Debug_Source;

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

   -- Create_Debug_Source --

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

   procedure Create_Debug_Source

     (Source : Source_File_Index;

      Loc    : out Source_Ptr)

   is

   begin

      Loc := Source_File.Table (Source_File.Last).Source_Last + 1;

      Source_File.Append (Source_File.Table (Source));

      Dfile := Source_File.Last;

      declare

         S : Source_File_Record renames Source_File.Table (Dfile);

      begin

         S.Full_Debug_Name   := Create_Debug_File (S.File_Name);

         S.Debug_Source_Name := Strip_Directory (S.Full_Debug_Name);

         S.Source_First      := Loc;

         S.Source_Last       := Loc;

         S.Lines_Table       := null;

         S.Last_Source_Line  := 1;

         --  Allocate lines table, guess that it needs to be three times bigger

         --  than the original source (in number of lines).

         Alloc_Line_Tables

           (S, Int (Source_File.Table (Source).Last_Source_Line * 3));

         S.Lines_Table (1) := Loc;

      end;

   end Create_Debug_Source;

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

   -- Write_Debug_Line --

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

   procedure Write_Debug_Line (Str : String; Loc : in out Source_Ptr) is

      S : Source_File_Record renames Source_File.Table (Dfile);

   begin

      --  Ignore write request if null line at start of file

      if Str'Length = 0 and then Loc = S.Source_First then

         return;

      --  Here we write the line, compute the source location for the following

      --  line, allocate its table entry, and update the source record entry.

      else

         Write_Debug_Info (Str (Str'First .. Str'Last - 1));

         Loc := Loc - 1 + Source_Ptr (Str'Length + Debug_File_Eol_Length);

         Add_Line_Tables_Entry (S, Loc);

         S.Source_Last := Loc;

         Set_Source_File_Index_Table (Dfile);

      end if;

   end Write_Debug_Line;

end Sinput.D;