/* Declaration for error-reporting function for Bison.
- Copyright (C) 2000, 2001, 2002, 2004, 2005, 2006
- Free Software Foundation, Inc.
+ Copyright (C) 2000-2002, 2004-2006, 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
#include "system.h"
#include <stdarg.h>
+#include <progname.h>
#include "complain.h"
#include "files.h"
#include "getargs.h"
+#include "quote.h"
-bool complaint_issued;
+warnings warnings_flag =
+ Wconflicts_sr | Wconflicts_rr | Wdeprecated | Wother;
-\f
+warnings errors_flag;
+
+err_status complaint_status = status_none;
+static unsigned *indent_ptr = 0;
+
+void
+warnings_print_categories (warnings warn_flags)
+{
+ if (! (warn_flags & silent))
+ {
+ char const *warn_names[] =
+ {
+ "midrule-values",
+ "yacc",
+ "conflicts-sr",
+ "conflicts-rr",
+ "deprecated",
+ "other"
+ };
+
+ bool any = false;
+ int i;
+ for (i = 0; i < ARRAY_CARDINALITY (warn_names); ++i)
+ if (warn_flags & 1 << i)
+ {
+ bool err = warn_flags & errors_flag;
+ fprintf (stderr, "%s-W", any ? ", " : " [");
+ fprintf (stderr, "%s%s", err ? "error=" : "" , warn_names[i]);
+ any = true;
+ }
+ if (any)
+ fprintf (stderr, "]");
+ }
+}
/** Report an error message.
*
* \param loc the location, defaulting to the current file,
* or the program name.
+ * \param flags the category for this message.
* \param prefix put before the message (e.g., "warning").
- * \param message the error message, a printf format string.
+ * \param message the error message, a printf format string. Iff it
+ * ends with ": ", then no trailing newline is printed,
+ * and the caller should print the remaining
+ * newline-terminated message to stderr.
* \param args the arguments of the format string.
*/
static
void
-error_message (location *loc,
- const char *prefix,
- const char *message, va_list args)
+error_message (const location *loc, warnings flags, const char *prefix,
+ const char *message, va_list args)
{
+ unsigned pos = 0;
+
if (loc)
- location_print (stderr, *loc);
+ pos += location_print (stderr, *loc);
else
- fputs (current_file ? current_file : program_name, stderr);
- fputs (": ", stderr);
+ pos += fprintf (stderr, "%s", current_file ? current_file : program_name);
+ pos += fprintf (stderr, ": ");
+
+ if (indent_ptr)
+ {
+ if (*indent_ptr)
+ prefix = NULL;
+ if (!*indent_ptr)
+ *indent_ptr = pos;
+ else if (*indent_ptr > pos)
+ fprintf (stderr, "%*s", *indent_ptr - pos, "");
+ indent_ptr = 0;
+ }
if (prefix)
fprintf (stderr, "%s: ", prefix);
vfprintf (stderr, message, args);
- va_end (args);
- putc ('\n', stderr);
+ warnings_print_categories (flags);
+ {
+ size_t l = strlen (message);
+ if (l < 2 || message[l - 2] != ':' || message[l - 1] != ' ')
+ {
+ putc ('\n', stderr);
+ fflush (stderr);
+ if (loc && feature_flag & feature_caret && !(flags & no_caret))
+ location_caret (stderr, *loc);
+ }
+ }
fflush (stderr);
}
-/** Wrap error_message() with varargs handling. */
-#define ERROR_MESSAGE(Loc, Prefix, Message) \
-{ \
- va_list args; \
- va_start (args, Message); \
- error_message (Loc, Prefix, Message, args); \
-}
-
-
-/*--------------------------------.
-| Report a warning, and proceed. |
-`--------------------------------*/
-
-static void
-set_warning_issued (void)
-{
- static bool warning_issued = false;
- if (!warning_issued && (warnings_flag & warnings_error))
- {
- fprintf (stderr, "%s: warnings being treated as errors\n", program_name);
- complaint_issued = true;
- }
- warning_issued = true;
-}
-
-void
-warn_at (location loc, const char *message, ...)
+/** Raise a complaint. That can be a fatal error, a complaint or just a
+ warning. */
+static inline void
+complains (const location *loc, warnings flags, const char *message,
+ va_list args)
{
- set_warning_issued ();
- ERROR_MESSAGE (&loc, _("warning"), message);
+ const char* prefix =
+ flags & fatal ? _("fatal error")
+ : flags & (errors_flag | complaint) ? _("error")
+ : _("warning");
+
+ if ((flags & complaint) && complaint_status < status_complaint)
+ complaint_status = status_complaint;
+ else if ((flags & (warnings_flag & errors_flag)) && ! complaint_status)
+ complaint_status = status_warning_as_error;
+ if (flags & (warnings_flag | fatal | complaint))
+ error_message (loc, flags, prefix, message, args);
+ if (flags & fatal)
+ exit (EXIT_FAILURE);
}
void
-warn (const char *message, ...)
+complain (location const *loc, warnings flags, const char *message, ...)
{
- set_warning_issued ();
- ERROR_MESSAGE (NULL, _("warning"), message);
+ va_list args;
+ va_start (args, message);
+ complains (loc, flags, message, args);
+ va_end (args);
}
-
-/*-----------------------------------------------------------.
-| An error has occurred, but we can proceed, and die later. |
-`-----------------------------------------------------------*/
-
void
-complain_at (location loc, const char *message, ...)
+complain_indent (location const *loc, warnings flags, unsigned *indent,
+ const char *message, ...)
{
- ERROR_MESSAGE (&loc, NULL, message);
- complaint_issued = true;
+ va_list args;
+ indent_ptr = indent;
+ va_start (args, message);
+ complains (loc, flags, message, args);
+ va_end (args);
}
void
-complain (const char *message, ...)
+complain_args (location const *loc, warnings w, unsigned *indent,
+ int argc, char *argv[])
{
- ERROR_MESSAGE (NULL, NULL, message);
- complaint_issued = true;
-}
-
+ switch (argc)
+ {
+ case 1:
+ complain_indent (loc, w, indent, "%s", _(argv[0]));
+ break;
+ case 2:
+ complain_indent (loc, w, indent, _(argv[0]), argv[1]);
+ break;
+ case 3:
+ complain_indent (loc, w, indent, _(argv[0]), argv[1], argv[2]);
+ break;
+ case 4:
+ complain_indent (loc, w, indent, _(argv[0]), argv[1], argv[2], argv[3]);
+ break;
+ case 5:
+ complain_indent (loc, w, indent, _(argv[0]), argv[1], argv[2], argv[3],
+ argv[4]);
+ break;
+ default:
+ complain (loc, fatal, "too many arguments for complains");
+ break;
+ }
-/*-------------------------------------------------.
-| A severe error has occurred, we cannot proceed. |
-`-------------------------------------------------*/
-
-void
-fatal_at (location loc, const char *message, ...)
-{
- ERROR_MESSAGE (&loc, _("fatal error"), message);
- exit (EXIT_FAILURE);
}
void
-fatal (const char *message, ...)
+deprecated_directive (location const *loc, char const *old, char const *upd)
{
- ERROR_MESSAGE (NULL, _("fatal error"), message);
- exit (EXIT_FAILURE);
+ if (feature_flag & feature_caret)
+ complain (loc, Wdeprecated,
+ _("deprecated directive, use %s"),
+ quote_n (1, upd));
+ else
+ complain (loc, Wdeprecated,
+ _("deprecated directive: %s, use %s"),
+ quote (old), quote_n (1, upd));
}
projects / bison.git / blobdiff