-- --
-- S p e c --
-- --
--- Copyright (C) 1992-2009, Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2020, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- All of these variables are set when needed, so they do not need to be
-- initialized. However, there is code that saves and restores existing
-- values, which may malfunction in -gnatVa mode if the variable has never
- -- been iniitalized, so we initialize some variables to avoid exceptions
+ -- been initialized, so we initialize some variables to avoid exceptions
-- from invalid values in such cases.
- ------------------
- -- Error Counts --
- ------------------
-
- Serious_Errors_Detected : Nat := 0;
- -- This is a count of errors that are serious enough to stop expansion,
- -- and hence to prevent generation of an object file even if the
- -- switch -gnatQ is set. Initialized to zero at the start of compilation.
- -- Initialized for -gnatVa use, see comment above.
-
- Total_Errors_Detected : Nat := 0;
- -- Number of errors detected so far. Includes count of serious errors and
- -- non-serious errors, so this value is always greater than or equal to the
- -- Serious_Errors_Detected value. Initialized to zero at the start of
- -- compilation. Initialized for -gnatVa use, see comment above.
-
- Warnings_Detected : Nat := 0;
- -- Number of warnings detected. Initialized to zero at the start of
- -- compilation. Initialized for -gnatVa use, see comment above.
+ -- Note on error counts (Serious_Errors_Detected, Total_Errors_Detected,
+ -- Warnings_Detected, Warning_Info_Messages, Report_Info_Messages). These
+ -- counts might more logically appear in this unit, but we place them
+ -- instead in atree.ads, because of licensing issues. We need to be able
+ -- to access these counts from units that have the more general licensing
+ -- conditions.
----------------------------------
-- Error Message Mode Variables --
-- variables are not reset by calls to the error message routines, so the
-- caller is responsible for resetting the default behavior after use.
- Error_Msg_Qual_Level : Int;
+ Error_Msg_Qual_Level : Nat := 0;
-- Number of levels of qualification required for type name (see the
-- description of the } insertion character. Note that this value does
- -- note get reset by any Error_Msg call, so the caller is responsible
+ -- not get reset by any Error_Msg call, so the caller is responsible
-- for resetting it.
Warn_On_Instance : Boolean := False;
Error_Msg_Exception : exception;
-- Exception raised if Raise_Exception_On_Error is true
- Current_Error_Source_File : Source_File_Index := Internal_Source_File;
+ Current_Error_Source_File : Source_File_Index := No_Source_File;
-- Id of current messages. Used to post file name when unit changes. This
-- is initialized to Main_Source_File at the start of a compilation, which
-- means that no file names will be output unless there are errors in units
-- Source_Reference line, then this is initialized to No_Source_File,
-- to force an initial reference to the real source file name.
+ Warning_Doc_Switch : Boolean := False;
+ -- If this is set True, then the ??/?x?/?x? sequences in error messages
+ -- are active (see errout.ads for details). If this switch is False, then
+ -- these sequences are ignored (i.e. simply equivalent to a single ?). The
+ -- -gnatw.d switch sets this flag True, -gnatw.D sets this flag False.
+
----------------------------------------
-- Error Message Insertion Parameters --
----------------------------------------
Error_Msg_Uint_2 : Uint;
-- Uint values for ^ insertion characters in message
+ -- WARNING: There is a matching C declaration of these variables in fe.h
+
Error_Msg_Sloc : Source_Ptr;
-- Source location for # insertion character in message
Error_Msg_Warn : Boolean;
-- Used if current message contains a < insertion character to indicate
- -- if the current message is a warning message.
+ -- if the current message is a warning message. Must be set appropriately
+ -- before any call to Error_Msg_xxx with a < insertion character present.
+ -- Setting is irrelevant if no < insertion character is present. Note
+ -- that it is not necessary to reset this after using it, since the proper
+ -- procedure is always to set it before issuing such a message. Note that
+ -- the warning documentation tag is always [enabled by default] in the
+ -- case where this flag is True.
Error_Msg_String : String (1 .. 4096);
Error_Msg_Strlen : Natural;
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