X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/e141f4d4bb6584bfbf13003047a2e48e9a6eab6a..0fe9720964da510a2b359af390a3053aace65f9f:/src/complain.c diff --git a/src/complain.c b/src/complain.c index f7900af4..984b1361 100644 --- a/src/complain.c +++ b/src/complain.c @@ -1,6 +1,6 @@ /* Declaration for error-reporting function for Bison. - Copyright (C) 2000-2002, 2004-2006, 2009-2010 Free Software + Copyright (C) 2000-2002, 2004-2006, 2009-2012 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify @@ -23,40 +23,79 @@ #include "system.h" #include +#include #include "complain.h" #include "files.h" #include "getargs.h" -bool complaint_issued; +warnings warnings_flag = + Wconflicts_sr | Wconflicts_rr | Wdeprecated | Wother; + +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) pos += location_print (stderr, *loc); else - pos += fprintf(stderr, "%s", current_file ? current_file : program_name); - pos += fprintf(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) @@ -68,123 +107,85 @@ error_message (location *loc, fprintf (stderr, "%s: ", prefix); vfprintf (stderr, message, 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); \ - va_end (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, ...) -{ - set_warning_issued (); - ERROR_MESSAGE (&loc, _("warning"), message); -} - -void -warn_at_indent (location loc, unsigned *indent, - const char *message, ...) -{ - set_warning_issued (); - indent_ptr = indent; - ERROR_MESSAGE (&loc, _("warning"), message); -} - -void -warn (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 (NULL, _("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); } - -/*-----------------------------------------------------------. -| An error has occurred, but we can proceed, and die later. | -`-----------------------------------------------------------*/ - void -complain_at (location loc, const char *message, ...) +complain (location const *loc, warnings flags, const char *message, ...) { - ERROR_MESSAGE (&loc, NULL, message); - complaint_issued = true; + va_list args; + va_start (args, message); + complains (loc, flags, message, args); + va_end (args); } void -complain_at_indent (location loc, unsigned *indent, - const char *message, ...) +complain_indent (location const *loc, warnings flags, unsigned *indent, + const char *message, ...) { + va_list args; indent_ptr = indent; - ERROR_MESSAGE (&loc, NULL, message); - complaint_issued = true; -} - -void -complain (const char *message, ...) -{ - ERROR_MESSAGE (NULL, NULL, message); - complaint_issued = true; -} - - -/*--------------------------------------------------------------. -| An incompatibility with POSIX Yacc: mapped either to warn* or | -| complain* depending on yacc_flag. | -`--------------------------------------------------------------*/ - -void -yacc_at (location loc, const char *message, ...) -{ - if (yacc_flag) - { - ERROR_MESSAGE (&loc, NULL, message); - complaint_issued = true; - } - else if (warnings_flag & warnings_yacc) - { - set_warning_issued (); - ERROR_MESSAGE (&loc, _("warning"), message); - } -} - - -/*-------------------------------------------------. -| 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); + va_start (args, message); + complains (loc, flags, message, args); + va_end (args); } void -fatal (const char *message, ...) +complain_args (location const *loc, warnings w, unsigned *indent, + int argc, char *argv[]) { - ERROR_MESSAGE (NULL, _("fatal error"), message); - exit (EXIT_FAILURE); + 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; + } }