/* Default error handlers for CPP Library.
- Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1998, 1999, 2000,
- 2001, 2002, 2004 Free Software Foundation, Inc.
+ Copyright (C) 1986-2019 Free Software Foundation, Inc.
Written by Per Bothner, 1994.
Based on CCCP program by Paul Rubin, June 1986
Adapted to ANSI C, Richard Stallman, Jan 1987
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
+Free Software Foundation; either version 3, or (at your option) any
later version.
This program is distributed in the hope that it will be useful,
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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+along with this program; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>.
In other words, you are welcome to use, share and improve this program.
You are forbidden to forbid anyone else to use, share and improve
#include "cpplib.h"
#include "internal.h"
-static void print_location (cpp_reader *, source_location, unsigned int);
+/* Print a diagnostic at the given location. */
-/* Print the logical file location (LINE, COL) in preparation for a
- diagnostic. Outputs the #include chain if it has changed. A line
- of zero suppresses the include stack, and outputs the program name
- instead. */
-static void
-print_location (cpp_reader *pfile, source_location line, unsigned int col)
+ATTRIBUTE_FPTR_PRINTF(5,0)
+static bool
+cpp_diagnostic_at (cpp_reader * pfile, enum cpp_diagnostic_level level,
+ enum cpp_warning_reason reason, rich_location *richloc,
+ const char *msgid, va_list *ap)
{
- if (line == 0)
- fprintf (stderr, "%s: ", progname);
- else
- {
- const struct line_map *map;
- unsigned int lin;
-
- map = linemap_lookup (pfile->line_table, line);
- linemap_print_containing_files (pfile->line_table, map);
-
- lin = SOURCE_LINE (map, line);
- if (col == 0)
- {
- col = SOURCE_COLUMN (map, line);
- if (col == 0)
- col = 1;
- }
-
- if (lin == 0)
- fprintf (stderr, "%s:", map->to_file);
- else if (CPP_OPTION (pfile, show_column) == 0)
- fprintf (stderr, "%s:%u:", map->to_file, lin);
- else
- fprintf (stderr, "%s:%u:%u:", map->to_file, lin, col);
+ bool ret;
- fputc (' ', stderr);
- }
+ if (!pfile->cb.diagnostic)
+ abort ();
+ ret = pfile->cb.diagnostic (pfile, level, reason, richloc, _(msgid), ap);
+
+ return ret;
}
-/* Set up for a diagnostic: print the file and line, bump the error
- counter, etc. SRC_LOC is the logical line number; zero means to print
- at the location of the previously lexed token, which tends to be
- the correct place by default. The column number can be specified either
- using COLUMN or (if COLUMN==0) extracting SOURCE_COLUMN from SRC_LOC.
- (This may seem redundant, but is useful when pre-scanning (cleaning) a line,
- when we haven't yet verified whether the current line_map has a
- big enough max_column_hint.)
-
- Returns 0 if the error has been suppressed. */
-int
-_cpp_begin_message (cpp_reader *pfile, int code,
- source_location src_loc, unsigned int column)
+/* Print a diagnostic at the location of the previously lexed token. */
+
+ATTRIBUTE_FPTR_PRINTF(4,0)
+static bool
+cpp_diagnostic (cpp_reader * pfile, enum cpp_diagnostic_level level,
+ enum cpp_warning_reason reason,
+ const char *msgid, va_list *ap)
{
- int level = CPP_DL_EXTRACT (code);
+ location_t src_loc;
- switch (level)
+ if (CPP_OPTION (pfile, traditional))
+ {
+ if (pfile->state.in_directive)
+ src_loc = pfile->directive_line;
+ else
+ src_loc = pfile->line_table->highest_line;
+ }
+ /* We don't want to refer to a token before the beginning of the
+ current run -- that is invalid. */
+ else if (pfile->cur_token == pfile->cur_run->base)
{
- case CPP_DL_WARNING:
- case CPP_DL_PEDWARN:
- if (cpp_in_system_header (pfile)
- && ! CPP_OPTION (pfile, warn_system_headers))
- return 0;
- /* Fall through. */
-
- case CPP_DL_WARNING_SYSHDR:
- if (CPP_OPTION (pfile, warnings_are_errors)
- || (level == CPP_DL_PEDWARN && CPP_OPTION (pfile, pedantic_errors)))
- {
- if (CPP_OPTION (pfile, inhibit_errors))
- return 0;
- level = CPP_DL_ERROR;
- pfile->errors++;
- }
- else if (CPP_OPTION (pfile, inhibit_warnings))
- return 0;
- break;
-
- case CPP_DL_ERROR:
- if (CPP_OPTION (pfile, inhibit_errors))
- return 0;
- /* ICEs cannot be inhibited. */
- case CPP_DL_ICE:
- pfile->errors++;
- break;
+ src_loc = 0;
}
-
- print_location (pfile, src_loc, column);
- if (CPP_DL_WARNING_P (level))
- fputs (_("warning: "), stderr);
- else if (level == CPP_DL_ICE)
- fputs (_("internal error: "), stderr);
else
- fputs (_("error: "), stderr);
+ {
+ src_loc = pfile->cur_token[-1].src_loc;
+ }
+ rich_location richloc (pfile->line_table, src_loc);
+ return cpp_diagnostic_at (pfile, level, reason, &richloc, msgid, ap);
+}
+
+/* Print a warning or error, depending on the value of LEVEL. */
- return 1;
+bool
+cpp_error (cpp_reader * pfile, enum cpp_diagnostic_level level,
+ const char *msgid, ...)
+{
+ va_list ap;
+ bool ret;
+
+ va_start (ap, msgid);
+
+ ret = cpp_diagnostic (pfile, level, CPP_W_NONE, msgid, &ap);
+
+ va_end (ap);
+ return ret;
}
-/* Don't remove the blank before do, as otherwise the exgettext
- script will mistake this as a function definition */
-#define v_message(msgid, ap) \
- do { vfprintf (stderr, _(msgid), ap); putc ('\n', stderr); } while (0)
+/* Print a warning. The warning reason may be given in REASON. */
-/* Exported interface. */
+bool
+cpp_warning (cpp_reader * pfile, enum cpp_warning_reason reason,
+ const char *msgid, ...)
+{
+ va_list ap;
+ bool ret;
+
+ va_start (ap, msgid);
-/* Print an error at the location of the previously lexed token. */
-void
-cpp_error (cpp_reader * pfile, int level, const char *msgid, ...)
+ ret = cpp_diagnostic (pfile, CPP_DL_WARNING, reason, msgid, &ap);
+
+ va_end (ap);
+ return ret;
+}
+
+/* Print a pedantic warning. The warning reason may be given in REASON. */
+
+bool
+cpp_pedwarning (cpp_reader * pfile, enum cpp_warning_reason reason,
+ const char *msgid, ...)
{
- source_location src_loc;
va_list ap;
-
+ bool ret;
+
va_start (ap, msgid);
- if (CPP_OPTION (pfile, client_diagnostic))
- pfile->cb.error (pfile, level, _(msgid), &ap);
- else
- {
- if (CPP_OPTION (pfile, traditional))
- {
- if (pfile->state.in_directive)
- src_loc = pfile->directive_line;
- else
- src_loc = pfile->line_table->highest_line;
- }
- else
- {
- src_loc = pfile->cur_token[-1].src_loc;
- }
+ ret = cpp_diagnostic (pfile, CPP_DL_PEDWARN, reason, msgid, &ap);
- if (_cpp_begin_message (pfile, level, src_loc, 0))
- v_message (msgid, ap);
- }
+ va_end (ap);
+ return ret;
+}
+
+/* Print a warning, including system headers. The warning reason may be
+ given in REASON. */
+
+bool
+cpp_warning_syshdr (cpp_reader * pfile, enum cpp_warning_reason reason,
+ const char *msgid, ...)
+{
+ va_list ap;
+ bool ret;
+
+ va_start (ap, msgid);
+
+ ret = cpp_diagnostic (pfile, CPP_DL_WARNING_SYSHDR, reason, msgid, &ap);
va_end (ap);
+ return ret;
}
-/* Print an error at a specific location. */
-void
-cpp_error_with_line (cpp_reader *pfile, int level,
- source_location src_loc, unsigned int column,
+/* Print a diagnostic at a specific location. */
+
+ATTRIBUTE_FPTR_PRINTF(6,0)
+static bool
+cpp_diagnostic_with_line (cpp_reader * pfile, enum cpp_diagnostic_level level,
+ enum cpp_warning_reason reason,
+ location_t src_loc, unsigned int column,
+ const char *msgid, va_list *ap)
+{
+ bool ret;
+
+ if (!pfile->cb.diagnostic)
+ abort ();
+ rich_location richloc (pfile->line_table, src_loc);
+ if (column)
+ richloc.override_column (column);
+ ret = pfile->cb.diagnostic (pfile, level, reason, &richloc, _(msgid), ap);
+
+ return ret;
+}
+
+/* Print a warning or error, depending on the value of LEVEL. */
+
+bool
+cpp_error_with_line (cpp_reader *pfile, enum cpp_diagnostic_level level,
+ location_t src_loc, unsigned int column,
const char *msgid, ...)
{
va_list ap;
-
+ bool ret;
+
va_start (ap, msgid);
- if (_cpp_begin_message (pfile, level, src_loc, column))
- v_message (msgid, ap);
+ ret = cpp_diagnostic_with_line (pfile, level, CPP_W_NONE, src_loc,
+ column, msgid, &ap);
va_end (ap);
+ return ret;
}
-void
-cpp_errno (cpp_reader *pfile, int level, const char *msgid)
+/* Print a warning. The warning reason may be given in REASON. */
+
+bool
+cpp_warning_with_line (cpp_reader *pfile, enum cpp_warning_reason reason,
+ location_t src_loc, unsigned int column,
+ const char *msgid, ...)
+{
+ va_list ap;
+ bool ret;
+
+ va_start (ap, msgid);
+
+ ret = cpp_diagnostic_with_line (pfile, CPP_DL_WARNING, reason, src_loc,
+ column, msgid, &ap);
+
+ va_end (ap);
+ return ret;
+}
+
+/* Print a pedantic warning. The warning reason may be given in REASON. */
+
+bool
+cpp_pedwarning_with_line (cpp_reader *pfile, enum cpp_warning_reason reason,
+ location_t src_loc, unsigned int column,
+ const char *msgid, ...)
+{
+ va_list ap;
+ bool ret;
+
+ va_start (ap, msgid);
+
+ ret = cpp_diagnostic_with_line (pfile, CPP_DL_PEDWARN, reason, src_loc,
+ column, msgid, &ap);
+
+ va_end (ap);
+ return ret;
+}
+
+/* Print a warning, including system headers. The warning reason may be
+ given in REASON. */
+
+bool
+cpp_warning_with_line_syshdr (cpp_reader *pfile, enum cpp_warning_reason reason,
+ location_t src_loc, unsigned int column,
+ const char *msgid, ...)
+{
+ va_list ap;
+ bool ret;
+
+ va_start (ap, msgid);
+
+ ret = cpp_diagnostic_with_line (pfile, CPP_DL_WARNING_SYSHDR, reason, src_loc,
+ column, msgid, &ap);
+
+ va_end (ap);
+ return ret;
+}
+
+/* As cpp_error, but use SRC_LOC as the location of the error, without
+ a column override. */
+
+bool
+cpp_error_at (cpp_reader * pfile, enum cpp_diagnostic_level level,
+ location_t src_loc, const char *msgid, ...)
+{
+ va_list ap;
+ bool ret;
+
+ va_start (ap, msgid);
+
+ rich_location richloc (pfile->line_table, src_loc);
+ ret = cpp_diagnostic_at (pfile, level, CPP_W_NONE, &richloc,
+ msgid, &ap);
+
+ va_end (ap);
+ return ret;
+}
+
+/* As cpp_error, but use RICHLOC as the location of the error, without
+ a column override. */
+
+bool
+cpp_error_at (cpp_reader * pfile, enum cpp_diagnostic_level level,
+ rich_location *richloc, const char *msgid, ...)
+{
+ va_list ap;
+ bool ret;
+
+ va_start (ap, msgid);
+
+ ret = cpp_diagnostic_at (pfile, level, CPP_W_NONE, richloc,
+ msgid, &ap);
+
+ va_end (ap);
+ return ret;
+}
+
+/* Print a warning or error, depending on the value of LEVEL. Include
+ information from errno. */
+
+bool
+cpp_errno (cpp_reader *pfile, enum cpp_diagnostic_level level,
+ const char *msgid)
+{
+ return cpp_error (pfile, level, "%s: %s", _(msgid), xstrerror (errno));
+}
+
+/* Print a warning or error, depending on the value of LEVEL. Include
+ information from errno. Unlike cpp_errno, the argument is a filename
+ that is not localized, but "" is replaced with localized "stdout". */
+
+bool
+cpp_errno_filename (cpp_reader *pfile, enum cpp_diagnostic_level level,
+ const char *filename,
+ location_t loc)
{
- if (msgid[0] == '\0')
- msgid = _("stdout");
+ if (filename[0] == '\0')
+ filename = _("stdout");
- cpp_error (pfile, level, "%s: %s", msgid, xstrerror (errno));
+ return cpp_error_at (pfile, level, loc, "%s: %s", filename,
+ xstrerror (errno));
}
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