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) 1992-2002 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, 59 Temple Place - Suite 330, Boston, -- 20-- MA 02111-1307, 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 30with Types; use Types; 31with Uintp; use Uintp; 32 33package 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 Warn_On_Instance : Boolean := False; 107 -- Normally if a warning is generated in a generic template from the 108 -- analysis of the template, then the warning really belongs in the 109 -- template, and the default value of False for this Boolean achieves 110 -- that effect. If Warn_On_Instance is set True, then the warnings are 111 -- generated on the instantiation (referring to the template) rather 112 -- than on the template itself. 113 114end Err_Vars; 115