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) 2002-2019, 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
28with Namet; use Namet;
29with Types; use Types;
30
31package 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
69end Prepcomp;
70