gcc/ada/prepcomp.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             P R E P C O M P                              --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 2002-2018, 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 3,  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 COPYING3.  If not, go to --
  19 -- http://www.gnu.org/licenses for a complete copy of the license.          --
  20 --                                                                          --
  21 -- GNAT was originally developed  by the GNAT team at  New York University. --
  22 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  23 --                                                                          --
  24 ------------------------------------------------------------------------------
  25
  26 --  This package stores all preprocessing data for the compiler
  27
  28 with Namet; use Namet;
  29 with Types; use Types;
  30
  31 package Prepcomp is
  32
  33    procedure Add_Dependency (S : Source_File_Index);
  34    --  Add a dependency on a non-source file. This is used internally for the
  35    --  preprocessing data file and the preprocessing definition file, and also
  36    --  externally for non-temporary configuration pragmas files.
  37
  38    procedure Add_Dependencies;
  39    --  Add dependencies on the preprocessing data file and the preprocessing
  40    --  definition files, if any, and the non-temporary configuration pragmas
  41    --  files, if any.
  42
  43    procedure Check_Symbols;
  44    --  Check if there are preprocessing symbols on the command line and set
  45    --  preprocessing if there are some: all files are preprocessed with these
  46    --  symbols. This procedure should not be called if there is a preprocessing
  47    --  data file specified on the command line. Instead a call should be made
  48    --  to Parse_Preprocessing_Data_File.
  49
  50    procedure Parse_Preprocessing_Data_File (N : File_Name_Type);
  51    --  Parse a preprocessing data file, specified with a -gnatep= switch
  52
  53    procedure Prepare_To_Preprocess
  54      (Source               : File_Name_Type;
  55       Preprocessing_Needed : out Boolean);
  56    --  Prepare, if necessary, the preprocessor for a source file. If the source
  57    --  file needs to be preprocessed, Preprocessing_Needed is set to True.
  58    --  Otherwise, Preprocessing_Needed is set to False and no preprocessing
  59    --  needs to be done.
  60
  61    procedure Process_Command_Line_Symbol_Definitions;
  62    --  Check symbol definitions that have been added by calls to procedure
  63    --  Add_Symbol_Definition and stored as pointers to string, and put them in
  64    --  a table. The reason the definitions were stored as pointer to strings is
  65    --  that the name table is not yest initialized when we process the command
  66    --  line switches. These symbol definitions will be later used in
  67    --  the call to Prepare_To_Preprocess.
  68
  69 end Prepcomp;