/* Declaration for error-reporting function for Bison.
- Copyright (C) 2000-2002, 2006, 2009-2013 Free Software Foundation,
+ Copyright (C) 2000-2002, 2006, 2009-2015 Free Software Foundation,
Inc.
This program is free software: you can redistribute it and/or modify
warning_yacc, /**< POSIXME. */
warning_conflicts_sr, /**< S/R conflicts. */
warning_conflicts_rr, /**< R/R conflicts. */
+ warning_empty_rule, /**< Implicitly empty rules. */
warning_deprecated, /**< Obsolete constructs. */
warning_precedence, /**< Useless precedence and associativity. */
warning_other, /**< All other warnings. */
Wconflicts_sr = 1 << warning_conflicts_sr,
Wconflicts_rr = 1 << warning_conflicts_rr,
Wdeprecated = 1 << warning_deprecated,
+ Wempty_rule = 1 << warning_empty_rule,
Wprecedence = 1 << warning_precedence,
Wother = 1 << warning_other,
no_caret = 1 << 14, /**< Do not display caret location. */
/**< All above warnings. */
- Wall = ~complaint & ~fatal & ~silent
+ Weverything = ~complaint & ~fatal & ~silent,
+ Wall = Weverything & ~Wyacc
} warnings;
+/** Whether the warnings of \a flags are all unset.
+ (Never enabled, never disabled). */
+bool warning_is_unset (warnings flags);
/** Make a complaint, with maybe a location. */
void complain (location const *loc, warnings flags, char const *message, ...)
void deprecated_directive (location const *loc,
char const *obsolete, char const *updated);
-/** Warnings treated as errors shouldn't stop the execution as regular errors
- should (because due to their nature, it is safe to go on). Thus, there are
- three possible execution statuses. */
+/** Report a repeated directive for a rule. */
+void duplicate_directive (char const *directive,
+ location first, location second);
+
+/** Warnings treated as errors shouldn't stop the execution as regular
+ errors should (because due to their nature, it is safe to go
+ on). Thus, there are three possible execution statuses. */
typedef enum
{
- status_none,
- status_warning_as_error,
- status_complaint
+ status_none, /**< No diagnostic issued so far. */
+ status_warning_as_error, /**< A warning was issued (but no error). */
+ status_complaint /**< An error was issued. */
} err_status;
/** Whether an error was reported. */