gcc/ada/g-souinf.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --                     G N A T . S O U R C E _ I N F O                      --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --                     Copyright (C) 2000-2005 AdaCore                      --
  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 2,  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 COPYING.  If not, write --
  19 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, USA.                                              --
  21 --                                                                          --
  22 -- As a special exception,  if other files  instantiate  generics from this --
  23 -- unit, or you link  this unit with other files  to produce an executable, --
  24 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  25 -- covered  by the  GNU  General  Public  License.  This exception does not --
  26 -- however invalidate  any other reasons why  the executable file  might be --
  27 -- covered by the  GNU Public License.                                      --
  28 --                                                                          --
  29 -- GNAT was originally developed  by the GNAT team at  New York University. --
  30 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  34 --  This package provides some useful utility subprograms that provide access
  35 --  to source code information known at compile time. These subprograms are
  36 --  intrinsic operations that provide information known to the compiler in
  37 --  a form that can be embedded into the source program for identification
  38 --  and logging purposes. For example, an exception handler can print out
  39 --  the name of the source file in which the exception is handled.
  40
  41 package GNAT.Source_Info is
  42    pragma Pure;
  43
  44    function File return String;
  45    --  Return the name of the current file, not including the path information.
  46    --  The result is considered to be a static string constant.
  47
  48    function Line return Positive;
  49    --  Return the current input line number. The result is considered to be a
  50    --  static expression.
  51
  52    function Source_Location return String;
  53    --  Return a string literal of the form "name:line", where name is the
  54    --  current source file name without path information, and line is the
  55    --  current line number. In the event that instantiations are involved,
  56    --  additional suffixes of the same form are appended after the separating
  57    --  string " instantiated at ". The result is considered to be a static
  58    --  string constant.
  59
  60    function Enclosing_Entity return String;
  61    --  Return the name of the current subprogram, package, task, entry or
  62    --  protected subprogram. The string is in exactly the form used for the
  63    --  declaration of the entity (casing and encoding conventions), and is
  64    --  considered to be a static string constant. The name is fully qualified
  65    --  using periods where possible (this is not always possible, notably in
  66    --  the case of entities appearing in unnamed block statements.)
  67    --
  68    --  Note: if this function is used at the outer level of a generic package,
  69    --  the string returned will be the name of the instance, not the generic
  70    --  package itself. This is useful in identifying and logging information
  71    --  from within generic templates.
  72
  73 private
  74    pragma Import (Intrinsic, File);
  75    pragma Import (Intrinsic, Line);
  76    pragma Import (Intrinsic, Source_Location);
  77    pragma Import (Intrinsic, Enclosing_Entity);
  78 end GNAT.Source_Info;