gcc/ada/err_vars.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             E R R _ V A R S                              --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2005 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 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 -- GNAT was originally developed  by the GNAT team at  New York University. --
  23 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  24 --                                                                          --
  25 ------------------------------------------------------------------------------
  26
  27 --  This package contains variables common to error reporting packages
  28 --  including Errout and Prj.Err.
  29
  30 with Types; use Types;
  31 with Uintp; use Uintp;
  32
  33 package Err_Vars is
  34
  35    Serious_Errors_Detected : Nat;
  36    --  This is a count of errors that are serious enough to stop expansion,
  37    --  and hence to prevent generation of an object file even if the
  38    --  switch -gnatQ is set.
  39
  40    Total_Errors_Detected : Nat;
  41    --  Number of errors detected so far. Includes count of serious errors
  42    --  and non-serious errors, so this value is always greater than or
  43    --  equal to the Serious_Errors_Detected value.
  44
  45    Warnings_Detected : Nat;
  46    --  Number of warnings detected
  47
  48    Current_Error_Source_File : Source_File_Index;
  49    --  Id of current messages. Used to post file name when unit changes. This
  50    --  is initialized to Main_Source_File at the start of a compilation, which
  51    --  means that no file names will be output unless there are errors in units
  52    --  other than the main unit. However, if the main unit has a pragma
  53    --  Source_Reference line, then this is initialized to No_Source_File,
  54    --  to force an initial reference to the real source file name.
  55
  56    Raise_Exception_On_Error : Nat := 0;
  57    --  If this value is non-zero, then any attempt to generate an error
  58    --  message raises the exception Error_Msg_Exception, and the error
  59    --  message is not output. This is used for defending against junk
  60    --  resulting from illegalities, and also for substitution of more
  61    --  appropriate error messages from higher semantic levels. It is
  62    --  a counter so that the increment/decrement protocol nests neatly.
  63
  64    Error_Msg_Exception : exception;
  65    --  Exception raised if Raise_Exception_On_Error is true
  66
  67    -----------------------------------------------------
  68    -- Global Values Used for Error Message Insertions --
  69    -----------------------------------------------------
  70
  71    --  The following global variables are essentially additional parameters
  72    --  passed to the error message routine for insertion sequences described
  73    --  above. The reason these are passed globally is that the insertion
  74    --  mechanism is essentially an untyped one in which the appropriate
  75    --  variables are set dependingon the specific insertion characters used.
  76
  77    Error_Msg_Col : Column_Number;
  78    --  Column for @ insertion character in message
  79
  80    Error_Msg_Uint_1 : Uint;
  81    Error_Msg_Uint_2 : Uint;
  82    --  Uint values for ^ insertion characters in message
  83
  84    Error_Msg_Sloc : Source_Ptr;
  85    --  Source location for # insertion character in message
  86
  87    Error_Msg_Name_1 : Name_Id;
  88    Error_Msg_Name_2 : Name_Id;
  89    Error_Msg_Name_3 : Name_Id;
  90    --  Name_Id values for % insertion characters in message
  91
  92    Error_Msg_Unit_1 : Name_Id;
  93    Error_Msg_Unit_2 : Name_Id;
  94    --  Name_Id values for $ insertion characters in message
  95
  96    Error_Msg_Node_1 : Node_Id;
  97    Error_Msg_Node_2 : Node_Id;
  98    --  Node_Id values for & insertion characters in message
  99
 100    Error_Msg_Qual_Level : Int := 0;
 101    --  Number of levels of qualification required for type name (see the
 102    --  description of the } insertion character. Note that this value does
 103    --  note get reset by any Error_Msg call, so the caller is responsible
 104    --  for resetting it.
 105
 106    Error_Msg_Warn : Boolean;
 107    --  Used if current message contains a < insertion character to indicate
 108    --  if the current message is a warning message.
 109
 110    Warn_On_Instance : Boolean := False;
 111    --  Normally if a warning is generated in a generic template from the
 112    --  analysis of the template, then the warning really belongs in the
 113    --  template, and the default value of False for this Boolean achieves
 114    --  that effect. If Warn_On_Instance is set True, then the warnings are
 115    --  generated on the instantiation (referring to the template) rather
 116    --  than on the template itself.
 117
 118 end Err_Vars;