warnings: be ready to print warnings categories

[bison.git] / src / complain.h

diff --git a/src/complain.h b/src/complain.h
index 0e527c4527e1dbdab1b6a44f212ab0c23f5d00a3..e8c26d16ae1440a087f32f8afdca6e59bee698d5 100644 (file)
--- a/src/complain.h
+++ b/src/complain.h
@@ -1,10 +1,12 @@
 /* Declaration for error-reporting function for Bison.
-   Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the
-   Free Software Foundation; either version 2, or (at your option) any
-   later version.
+   Copyright (C) 2000-2002, 2006, 2009-2012 Free Software Foundation,
+   Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,53 +14,67 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-   USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef COMPLAIN_H_
 # define COMPLAIN_H_ 1
 
 # include "location.h"
 
-# ifdef        __cplusplus
+# ifdef __cplusplus
 extern "C" {
 # endif
 
-/* Informative messages, but we proceed. */
-
-void warn (const char *format, ...)
-  __attribute__ ((__format__ (__printf__, 1, 2)));
-
-void warn_at (location_t location, const char *format, ...)
-  __attribute__ ((__format__ (__printf__, 2, 3)));
-
-/* Something bad happen, but let's continue and die later. */
-
-void complain (const char *format, ...)
-  __attribute__ ((__format__ (__printf__, 1, 2)));
-
-void complain_at (location_t location, const char *format, ...)
+/*-------------.
+| --warnings.  |
+`-------------*/
+
+typedef enum
+  {
+    Wnone             = 0,       /**< Issue no warnings.  */
+    Wmidrule_values   = 1 << 0,  /**< Unset or unused midrule values.  */
+    Wyacc             = 1 << 1,  /**< POSIXME.  */
+    Wconflicts_sr     = 1 << 2,  /**< S/R conflicts.  */
+    Wconflicts_rr     = 1 << 3,  /**< R/R conflicts.  */
+    Wother            = 1 << 4,  /**< All other warnings.  */
+
+    Werror            = 1 << 10, /**< Warnings are treated as errors.  */
+    complaint         = 1 << 11, /**< All complaints.  */
+    fatal             = 1 << 12, /**< All fatal errors.  */
+    silent            = 1 << 13, /**< Do not display the warning type.  */
+    Wall              = ~Werror  /**< All above warnings.  */
+  } warnings;
+
+/** What warnings are issued.  */
+extern warnings warnings_flag;
+
+/** Display a "[-Wyacc]" like message on stderr.  */
+void warnings_print_categories (warnings warn_flags);
+
+/** Record that a warning is about to be issued, and treat it as an
+    error if <tt>warnings_flag & Werror</tt>.  This is exported
+    only for the sake of Yacc-compatible conflict reports in conflicts.c.
+    All other warnings should be implemented in complain.c and should use
+    the normal warning format.  */
+void set_warning_issued (void);
+
+/** Make a complaint, but don't specify any location.  */
+void complain (warnings flags, char const *message, ...)
   __attribute__ ((__format__ (__printf__, 2, 3)));
 
-/* Something bad happen and we die now. */
-
-void fatal (const char *format, ...)
-  __attribute__ ((__noreturn__, __format__ (__printf__, 1, 2)));
-
-void fatal_at (location_t location, const char *format, ...)
-  __attribute__ ((__noreturn__, __format__ (__printf__, 2, 3)));
-
-/* Position in the current input file. */
-extern char *infile;
+/** Make a complaint with location.  */
+void complain_at (location loc, warnings flags, char const *message, ...)
+  __attribute__ ((__format__ (__printf__, 3, 4)));
 
-/* This variable is set each time `warn' is called.  */
-extern bool warning_issued;
+/** Make a complaint with location and some indentation.  */
+void complain_at_indent (location loc, warnings flags, unsigned *indent,
+                         char const *message, ...)
+  __attribute__ ((__format__ (__printf__, 4, 5)));
 
-/* This variable is set each time `complain' is called.  */
+/** Whether an error was reported.  */
 extern bool complaint_issued;
 
-# ifdef        __cplusplus
+# ifdef __cplusplus
 }
 # endif