2 Copyright (C) 2000-2017 Free Software Foundation, Inc.
3 Contributed by Andy Vaught & Niels Kristian Bech Jensen
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 3, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
21 /* Handle the inevitable errors. A major catch here is that things
22 flagged as errors in one match subroutine can conceivably be legal
23 elsewhere. This means that error messages are recorded and saved
24 for possible use later. If a line does not match a legal
25 construction, then the saved error message is reported. */
29 #include "coretypes.h"
33 #include "diagnostic.h"
34 #include "diagnostic-color.h"
35 #include "tree-diagnostic.h" /* tree_diagnostics_defaults */
37 static int suppress_errors
= 0;
39 static bool warnings_not_errors
= false;
41 static int terminal_width
;
43 /* True if the error/warnings should be buffered. */
44 static bool buffered_p
;
46 static gfc_error_buffer error_buffer
;
47 /* These are always buffered buffers (.flush_p == false) to be used by
48 the pretty-printer. */
49 static output_buffer
*pp_error_buffer
, *pp_warning_buffer
;
50 static int warningcount_buffered
, werrorcount_buffered
;
52 /* Return true if there output_buffer is empty. */
55 gfc_output_buffer_empty_p (const output_buffer
* buf
)
57 return output_buffer_last_position_in_text (buf
) == NULL
;
60 /* Go one level deeper suppressing errors. */
63 gfc_push_suppress_errors (void)
65 gcc_assert (suppress_errors
>= 0);
70 gfc_error_opt (int opt
, const char *gmsgid
, va_list ap
) ATTRIBUTE_GCC_GFC(2,0);
73 gfc_warning (int opt
, const char *gmsgid
, va_list ap
) ATTRIBUTE_GCC_GFC(2,0);
76 /* Leave one level of error suppressing. */
79 gfc_pop_suppress_errors (void)
81 gcc_assert (suppress_errors
> 0);
86 /* Determine terminal width (for trimming source lines in output). */
89 gfc_get_terminal_width (void)
91 return isatty (STDERR_FILENO
) ? get_terminal_width () : INT_MAX
;
95 /* Per-file error initialization. */
98 gfc_error_init_1 (void)
100 terminal_width
= gfc_get_terminal_width ();
101 gfc_buffer_error (false);
105 /* Set the flag for buffering errors or not. */
108 gfc_buffer_error (bool flag
)
114 /* Add a single character to the error buffer or output depending on
120 /* FIXME: Unused function to be removed in a subsequent patch. */
124 /* Copy a string to wherever it needs to go. */
127 error_string (const char *p
)
134 /* Print a formatted integer to the error buffer or output. */
139 error_uinteger (unsigned long int i
)
141 char *p
, int_buf
[IBUF_LEN
];
143 p
= int_buf
+ IBUF_LEN
- 1;
155 error_string (p
+ 1);
159 error_integer (long int i
)
165 u
= (unsigned long int) -i
;
176 gfc_widechar_display_length (gfc_char_t c
)
178 if (gfc_wide_is_printable (c
) || c
== '\t')
179 /* Printable ASCII character, or tabulation (output as a space). */
181 else if (c
< ((gfc_char_t
) 1 << 8))
182 /* Displayed as \x?? */
184 else if (c
< ((gfc_char_t
) 1 << 16))
185 /* Displayed as \u???? */
188 /* Displayed as \U???????? */
193 /* Length of the ASCII representation of the wide string, escaping wide
194 characters as print_wide_char_into_buffer() does. */
197 gfc_wide_display_length (const gfc_char_t
*str
)
201 for (i
= 0, len
= 0; str
[i
]; i
++)
202 len
+= gfc_widechar_display_length (str
[i
]);
208 print_wide_char_into_buffer (gfc_char_t c
, char *buf
)
210 static const char xdigit
[16] = { '0', '1', '2', '3', '4', '5', '6',
211 '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
213 if (gfc_wide_is_printable (c
) || c
== '\t')
216 /* Tabulation is output as a space. */
217 buf
[0] = (unsigned char) (c
== '\t' ? ' ' : c
);
220 else if (c
< ((gfc_char_t
) 1 << 8))
223 buf
[3] = xdigit
[c
& 0x0F];
225 buf
[2] = xdigit
[c
& 0x0F];
231 else if (c
< ((gfc_char_t
) 1 << 16))
234 buf
[5] = xdigit
[c
& 0x0F];
236 buf
[4] = xdigit
[c
& 0x0F];
238 buf
[3] = xdigit
[c
& 0x0F];
240 buf
[2] = xdigit
[c
& 0x0F];
249 buf
[9] = xdigit
[c
& 0x0F];
251 buf
[8] = xdigit
[c
& 0x0F];
253 buf
[7] = xdigit
[c
& 0x0F];
255 buf
[6] = xdigit
[c
& 0x0F];
257 buf
[5] = xdigit
[c
& 0x0F];
259 buf
[4] = xdigit
[c
& 0x0F];
261 buf
[3] = xdigit
[c
& 0x0F];
263 buf
[2] = xdigit
[c
& 0x0F];
271 static char wide_char_print_buffer
[11];
274 gfc_print_wide_char (gfc_char_t c
)
276 print_wide_char_into_buffer (c
, wide_char_print_buffer
);
277 return wide_char_print_buffer
;
281 /* Show the file, where it was included, and the source line, give a
282 locus. Calls error_printf() recursively, but the recursion is at
283 most one level deep. */
285 static void error_printf (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
288 show_locus (locus
*loc
, int c1
, int c2
)
295 /* TODO: Either limit the total length and number of included files
296 displayed or add buffering of arbitrary number of characters in
299 /* Write out the error header line, giving the source file and error
300 location (in GNU standard "[file]:[line].[column]:" format),
301 followed by an "included by" stack and a blank line. This header
302 format is matched by a testsuite parser defined in
303 lib/gfortran-dg.exp. */
308 error_string (f
->filename
);
311 error_integer (LOCATION_LINE (lb
->location
));
313 if ((c1
> 0) || (c2
> 0))
319 if ((c1
> 0) && (c2
> 0))
330 i
= f
->inclusion_line
;
333 if (f
== NULL
) break;
335 error_printf (" Included at %s:%d:", f
->filename
, i
);
340 /* Calculate an appropriate horizontal offset of the source line in
341 order to get the error locus within the visible portion of the
342 line. Note that if the margin of 5 here is changed, the
343 corresponding margin of 10 in show_loci should be changed. */
347 /* If the two loci would appear in the same column, we shift
348 '2' one column to the right, so as to print '12' rather than
349 just '1'. We do this here so it will be accounted for in the
350 margin calculations. */
355 cmax
= (c1
< c2
) ? c2
: c1
;
356 if (cmax
> terminal_width
- 5)
357 offset
= cmax
- terminal_width
+ 5;
359 /* Show the line itself, taking care not to print more than what can
360 show up on the terminal. Tabs are converted to spaces, and
361 nonprintable characters are converted to a "\xNN" sequence. */
363 p
= &(lb
->line
[offset
]);
364 i
= gfc_wide_display_length (p
);
365 if (i
> terminal_width
)
366 i
= terminal_width
- 1;
370 static char buffer
[11];
371 i
-= print_wide_char_into_buffer (*p
++, buffer
);
372 error_string (buffer
);
377 /* Show the '1' and/or '2' corresponding to the column of the error
378 locus. Note that a value of -1 for c1 or c2 will simply cause
379 the relevant number not to be printed. */
385 p
= &(lb
->line
[offset
]);
386 for (i
= 0; i
< cmax
; i
++)
389 spaces
= gfc_widechar_display_length (*p
++);
392 error_char ('1'), spaces
--;
394 error_char ('2'), spaces
--;
396 for (j
= 0; j
< spaces
; j
++)
410 /* As part of printing an error, we show the source lines that caused
411 the problem. We show at least one, and possibly two loci; the two
412 loci may or may not be on the same source line. */
415 show_loci (locus
*l1
, locus
*l2
)
419 if (l1
== NULL
|| l1
->lb
== NULL
)
421 error_printf ("<During initialization>\n");
425 /* While calculating parameters for printing the loci, we consider possible
426 reasons for printing one per line. If appropriate, print the loci
427 individually; otherwise we print them both on the same line. */
429 c1
= l1
->nextc
- l1
->lb
->line
;
432 show_locus (l1
, c1
, -1);
436 c2
= l2
->nextc
- l2
->lb
->line
;
443 /* Note that the margin value of 10 here needs to be less than the
444 margin of 5 used in the calculation of offset in show_locus. */
446 if (l1
->lb
!= l2
->lb
|| m
> terminal_width
- 10)
448 show_locus (l1
, c1
, -1);
449 show_locus (l2
, -1, c2
);
453 show_locus (l1
, c1
, c2
);
459 /* Workhorse for the error printing subroutines. This subroutine is
460 inspired by g77's error handling and is similar to printf() with
461 the following %-codes:
463 %c Character, %d or %i Integer, %s String, %% Percent
464 %L Takes locus argument
465 %C Current locus (no argument)
467 If a locus pointer is given, the actual source line is printed out
468 and the column is indicated. Since we want the error message at
469 the bottom of any source file information, we must scan the
470 argument list twice -- once to determine whether the loci are
471 present and record this for printing, and once to print the error
472 message after and loci have been printed. A maximum of two locus
473 arguments are permitted.
475 This function is also called (recursively) by show_locus in the
476 case of included files; however, as show_locus does not resupply
477 any loci, the recursion is at most one level deep. */
481 static void ATTRIBUTE_GCC_GFC(2,0)
482 error_print (const char *type
, const char *format0
, va_list argp
)
484 enum { TYPE_CURRENTLOC
, TYPE_LOCUS
, TYPE_INTEGER
, TYPE_UINTEGER
,
485 TYPE_LONGINT
, TYPE_ULONGINT
, TYPE_CHAR
, TYPE_STRING
,
494 unsigned int uintval
;
496 unsigned long int ulongintval
;
498 const char * stringval
;
500 } arg
[MAX_ARGS
], spec
[MAX_ARGS
];
501 /* spec is the array of specifiers, in the same order as they
502 appear in the format string. arg is the array of arguments,
503 in the same order as they appear in the va_list. */
506 int i
, n
, have_l1
, pos
, maxpos
;
507 locus
*l1
, *l2
, *loc
;
510 loc
= l1
= l2
= NULL
;
519 for (i
= 0; i
< MAX_ARGS
; i
++)
521 arg
[i
].type
= NOTYPE
;
525 /* First parse the format string for position specifiers. */
538 if (ISDIGIT (*format
))
540 /* This is a position specifier. For example, the number
541 12 in the format string "%12$d", which specifies the third
542 argument of the va_list, formatted in %d format.
543 For details, see "man 3 printf". */
544 pos
= atoi(format
) - 1;
545 gcc_assert (pos
>= 0);
546 while (ISDIGIT(*format
))
548 gcc_assert (*format
== '$');
562 arg
[pos
].type
= TYPE_CURRENTLOC
;
566 arg
[pos
].type
= TYPE_LOCUS
;
571 arg
[pos
].type
= TYPE_INTEGER
;
575 arg
[pos
].type
= TYPE_UINTEGER
;
581 arg
[pos
].type
= TYPE_ULONGINT
;
582 else if (c
== 'i' || c
== 'd')
583 arg
[pos
].type
= TYPE_LONGINT
;
589 arg
[pos
].type
= TYPE_CHAR
;
593 arg
[pos
].type
= TYPE_STRING
;
603 /* Then convert the values for each %-style argument. */
604 for (pos
= 0; pos
<= maxpos
; pos
++)
606 gcc_assert (arg
[pos
].type
!= NOTYPE
);
607 switch (arg
[pos
].type
)
609 case TYPE_CURRENTLOC
:
610 loc
= &gfc_current_locus
;
614 if (arg
[pos
].type
== TYPE_LOCUS
)
615 loc
= va_arg (argp
, locus
*);
620 arg
[pos
].u
.stringval
= "(2)";
626 arg
[pos
].u
.stringval
= "(1)";
631 arg
[pos
].u
.intval
= va_arg (argp
, int);
635 arg
[pos
].u
.uintval
= va_arg (argp
, unsigned int);
639 arg
[pos
].u
.longintval
= va_arg (argp
, long int);
643 arg
[pos
].u
.ulongintval
= va_arg (argp
, unsigned long int);
647 arg
[pos
].u
.charval
= (char) va_arg (argp
, int);
651 arg
[pos
].u
.stringval
= (const char *) va_arg (argp
, char *);
659 for (n
= 0; spec
[n
].pos
>= 0; n
++)
660 spec
[n
].u
= arg
[spec
[n
].pos
].u
;
662 /* Show the current loci if we have to. */
676 for (; *format
; format
++)
680 error_char (*format
);
685 if (ISDIGIT (*format
))
687 /* This is a position specifier. See comment above. */
688 while (ISDIGIT (*format
))
691 /* Skip over the dollar sign. */
702 error_char (spec
[n
++].u
.charval
);
706 case 'C': /* Current locus */
707 case 'L': /* Specified locus */
708 error_string (spec
[n
++].u
.stringval
);
713 error_integer (spec
[n
++].u
.intval
);
717 error_uinteger (spec
[n
++].u
.uintval
);
723 error_uinteger (spec
[n
++].u
.ulongintval
);
725 error_integer (spec
[n
++].u
.longintval
);
735 /* Wrapper for error_print(). */
738 error_printf (const char *gmsgid
, ...)
742 va_start (argp
, gmsgid
);
743 error_print ("", _(gmsgid
), argp
);
748 /* Clear any output buffered in a pretty-print output_buffer. */
751 gfc_clear_pp_buffer (output_buffer
*this_buffer
)
753 pretty_printer
*pp
= global_dc
->printer
;
754 output_buffer
*tmp_buffer
= pp
->buffer
;
755 pp
->buffer
= this_buffer
;
756 pp_clear_output_area (pp
);
757 pp
->buffer
= tmp_buffer
;
758 /* We need to reset last_location, otherwise we may skip caret lines
759 when we actually give a diagnostic. */
760 global_dc
->last_location
= UNKNOWN_LOCATION
;
764 /* This is just a helper function to avoid duplicating the logic of
768 gfc_warning (int opt
, const char *gmsgid
, va_list ap
)
773 diagnostic_info diagnostic
;
774 rich_location
rich_loc (line_table
, UNKNOWN_LOCATION
);
775 bool fatal_errors
= global_dc
->fatal_errors
;
776 pretty_printer
*pp
= global_dc
->printer
;
777 output_buffer
*tmp_buffer
= pp
->buffer
;
779 gfc_clear_pp_buffer (pp_warning_buffer
);
783 pp
->buffer
= pp_warning_buffer
;
784 global_dc
->fatal_errors
= false;
785 /* To prevent -fmax-errors= triggering. */
789 diagnostic_set_info (&diagnostic
, gmsgid
, &argp
, &rich_loc
,
791 diagnostic
.option_index
= opt
;
792 bool ret
= report_diagnostic (&diagnostic
);
796 pp
->buffer
= tmp_buffer
;
797 global_dc
->fatal_errors
= fatal_errors
;
799 warningcount_buffered
= 0;
800 werrorcount_buffered
= 0;
801 /* Undo the above --werrorcount if not Werror, otherwise
802 werrorcount is correct already. */
805 else if (diagnostic
.kind
== DK_ERROR
)
806 ++werrorcount_buffered
;
808 ++werrorcount
, --warningcount
, ++warningcount_buffered
;
815 /* Issue a warning. */
818 gfc_warning (int opt
, const char *gmsgid
, ...)
822 va_start (argp
, gmsgid
);
823 bool ret
= gfc_warning (opt
, gmsgid
, argp
);
829 /* Whether, for a feature included in a given standard set (GFC_STD_*),
830 we should issue an error or a warning, or be quiet. */
833 gfc_notification_std (int std
)
837 warning
= ((gfc_option
.warn_std
& std
) != 0) && !inhibit_warnings
;
838 if ((gfc_option
.allow_std
& std
) != 0 && !warning
)
841 return warning
? WARNING
: ERROR
;
845 /* Possibly issue a warning/error about use of a nonstandard (or deleted)
846 feature. An error/warning will be issued if the currently selected
847 standard does not contain the requested bits. Return false if
848 an error is generated. */
851 gfc_notify_std (int std
, const char *gmsgid
, ...)
855 const char *msg
, *msg2
;
858 warning
= ((gfc_option
.warn_std
& std
) != 0) && !inhibit_warnings
;
859 if ((gfc_option
.allow_std
& std
) != 0 && !warning
)
863 return warning
? true : false;
867 case GFC_STD_F2008_TS
:
868 msg
= "TS 29113/TS 18508:";
870 case GFC_STD_F2008_OBS
:
871 msg
= _("Fortran 2008 obsolescent feature:");
874 msg
= "Fortran 2008:";
877 msg
= "Fortran 2003:";
880 msg
= _("GNU Extension:");
883 msg
= _("Legacy Extension:");
885 case GFC_STD_F95_OBS
:
886 msg
= _("Obsolescent feature:");
888 case GFC_STD_F95_DEL
:
889 msg
= _("Deleted feature:");
896 buffer
= (char *) alloca (strlen (msg
) + strlen (msg2
) + 2);
897 strcpy (buffer
, msg
);
898 strcat (buffer
, " ");
899 strcat (buffer
, msg2
);
901 va_start (argp
, gmsgid
);
903 gfc_warning (0, buffer
, argp
);
905 gfc_error_opt (0, buffer
, argp
);
908 return (warning
&& !warnings_are_errors
) ? true : false;
912 /* Called from output_format -- during diagnostic message processing
913 to handle Fortran specific format specifiers with the following meanings:
915 %C Current locus (no argument)
916 %L Takes locus argument
919 gfc_format_decoder (pretty_printer
*pp
,
920 text_info
*text
, const char *spec
,
921 int precision ATTRIBUTE_UNUSED
, bool wide ATTRIBUTE_UNUSED
,
922 bool plus ATTRIBUTE_UNUSED
, bool hash ATTRIBUTE_UNUSED
)
929 static const char *result
[2] = { "(1)", "(2)" };
932 loc
= &gfc_current_locus
;
934 loc
= va_arg (*text
->args_ptr
, locus
*);
935 gcc_assert (loc
->nextc
- loc
->lb
->line
>= 0);
936 unsigned int offset
= loc
->nextc
- loc
->lb
->line
;
937 /* If location[0] != UNKNOWN_LOCATION means that we already
938 processed one of %C/%L. */
939 int loc_num
= text
->get_location (0) == UNKNOWN_LOCATION
? 0 : 1;
941 = linemap_position_for_loc_and_offset (line_table
,
944 text
->set_location (loc_num
, src_loc
, true);
945 pp_string (pp
, result
[loc_num
]);
953 /* Return a malloc'd string describing the kind of diagnostic. The
954 caller is responsible for freeing the memory. */
956 gfc_diagnostic_build_kind_prefix (diagnostic_context
*context
,
957 const diagnostic_info
*diagnostic
)
959 static const char *const diagnostic_kind_text
[] = {
960 #define DEFINE_DIAGNOSTIC_KIND(K, T, C) (T),
961 #include "gfc-diagnostic.def"
962 #undef DEFINE_DIAGNOSTIC_KIND
965 static const char *const diagnostic_kind_color
[] = {
966 #define DEFINE_DIAGNOSTIC_KIND(K, T, C) (C),
967 #include "gfc-diagnostic.def"
968 #undef DEFINE_DIAGNOSTIC_KIND
971 gcc_assert (diagnostic
->kind
< DK_LAST_DIAGNOSTIC_KIND
);
972 const char *text
= _(diagnostic_kind_text
[diagnostic
->kind
]);
973 const char *text_cs
= "", *text_ce
= "";
974 pretty_printer
*pp
= context
->printer
;
976 if (diagnostic_kind_color
[diagnostic
->kind
])
978 text_cs
= colorize_start (pp_show_color (pp
),
979 diagnostic_kind_color
[diagnostic
->kind
]);
980 text_ce
= colorize_stop (pp_show_color (pp
));
982 return build_message_string ("%s%s:%s ", text_cs
, text
, text_ce
);
985 /* Return a malloc'd string describing a location. The caller is
986 responsible for freeing the memory. */
988 gfc_diagnostic_build_locus_prefix (diagnostic_context
*context
,
991 pretty_printer
*pp
= context
->printer
;
992 const char *locus_cs
= colorize_start (pp_show_color (pp
), "locus");
993 const char *locus_ce
= colorize_stop (pp_show_color (pp
));
994 return (s
.file
== NULL
995 ? build_message_string ("%s%s:%s", locus_cs
, progname
, locus_ce
)
996 : !strcmp (s
.file
, N_("<built-in>"))
997 ? build_message_string ("%s%s:%s", locus_cs
, s
.file
, locus_ce
)
998 : context
->show_column
999 ? build_message_string ("%s%s:%d:%d:%s", locus_cs
, s
.file
, s
.line
,
1001 : build_message_string ("%s%s:%d:%s", locus_cs
, s
.file
, s
.line
, locus_ce
));
1004 /* Return a malloc'd string describing two locations. The caller is
1005 responsible for freeing the memory. */
1007 gfc_diagnostic_build_locus_prefix (diagnostic_context
*context
,
1008 expanded_location s
, expanded_location s2
)
1010 pretty_printer
*pp
= context
->printer
;
1011 const char *locus_cs
= colorize_start (pp_show_color (pp
), "locus");
1012 const char *locus_ce
= colorize_stop (pp_show_color (pp
));
1014 return (s
.file
== NULL
1015 ? build_message_string ("%s%s:%s", locus_cs
, progname
, locus_ce
)
1016 : !strcmp (s
.file
, N_("<built-in>"))
1017 ? build_message_string ("%s%s:%s", locus_cs
, s
.file
, locus_ce
)
1018 : context
->show_column
1019 ? build_message_string ("%s%s:%d:%d-%d:%s", locus_cs
, s
.file
, s
.line
,
1020 MIN (s
.column
, s2
.column
),
1021 MAX (s
.column
, s2
.column
), locus_ce
)
1022 : build_message_string ("%s%s:%d:%s", locus_cs
, s
.file
, s
.line
,
1026 /* This function prints the locus (file:line:column), the diagnostic kind
1027 (Error, Warning) and (optionally) the relevant lines of code with
1028 annotation lines with '1' and/or '2' below them.
1030 With -fdiagnostic-show-caret (the default) it prints:
1032 [locus of primary range]:
1036 Error: Some error at (1)
1038 With -fno-diagnostic-show-caret or if the primary range is not
1041 [locus of primary range]: Error: Some error at (1) and (2)
1044 gfc_diagnostic_starter (diagnostic_context
*context
,
1045 diagnostic_info
*diagnostic
)
1047 char * kind_prefix
= gfc_diagnostic_build_kind_prefix (context
, diagnostic
);
1049 expanded_location s1
= diagnostic_expand_location (diagnostic
);
1050 expanded_location s2
;
1051 bool one_locus
= diagnostic
->richloc
->get_num_locations () < 2;
1052 bool same_locus
= false;
1056 s2
= diagnostic_expand_location (diagnostic
, 1);
1057 same_locus
= diagnostic_same_line (context
, s1
, s2
);
1060 char * locus_prefix
= (one_locus
|| !same_locus
)
1061 ? gfc_diagnostic_build_locus_prefix (context
, s1
)
1062 : gfc_diagnostic_build_locus_prefix (context
, s1
, s2
);
1064 if (!context
->show_caret
1065 || diagnostic_location (diagnostic
, 0) <= BUILTINS_LOCATION
1066 || diagnostic_location (diagnostic
, 0) == context
->last_location
)
1068 pp_set_prefix (context
->printer
,
1069 concat (locus_prefix
, " ", kind_prefix
, NULL
));
1070 free (locus_prefix
);
1072 if (one_locus
|| same_locus
)
1077 /* In this case, we print the previous locus and prefix as:
1079 [locus]:[prefix]: (1)
1081 and we flush with a new line before setting the new prefix. */
1082 pp_string (context
->printer
, "(1)");
1083 pp_newline (context
->printer
);
1084 locus_prefix
= gfc_diagnostic_build_locus_prefix (context
, s2
);
1085 pp_set_prefix (context
->printer
,
1086 concat (locus_prefix
, " ", kind_prefix
, NULL
));
1088 free (locus_prefix
);
1092 pp_verbatim (context
->printer
, "%s", locus_prefix
);
1093 free (locus_prefix
);
1094 /* Fortran uses an empty line between locus and caret line. */
1095 pp_newline (context
->printer
);
1096 diagnostic_show_locus (context
, diagnostic
->richloc
, diagnostic
->kind
);
1097 /* If the caret line was shown, the prefix does not contain the
1099 pp_set_prefix (context
->printer
, kind_prefix
);
1104 gfc_diagnostic_start_span (diagnostic_context
*context
,
1105 expanded_location exploc
)
1108 locus_prefix
= gfc_diagnostic_build_locus_prefix (context
, exploc
);
1109 pp_verbatim (context
->printer
, "%s", locus_prefix
);
1110 free (locus_prefix
);
1111 pp_newline (context
->printer
);
1112 /* Fortran uses an empty line between locus and caret line. */
1113 pp_newline (context
->printer
);
1118 gfc_diagnostic_finalizer (diagnostic_context
*context
,
1119 diagnostic_info
*diagnostic ATTRIBUTE_UNUSED
)
1121 pp_destroy_prefix (context
->printer
);
1122 pp_newline_and_flush (context
->printer
);
1125 /* Immediate warning (i.e. do not buffer the warning) with an explicit
1129 gfc_warning_now_at (location_t loc
, int opt
, const char *gmsgid
, ...)
1132 diagnostic_info diagnostic
;
1133 rich_location
rich_loc (line_table
, loc
);
1136 va_start (argp
, gmsgid
);
1137 diagnostic_set_info (&diagnostic
, gmsgid
, &argp
, &rich_loc
, DK_WARNING
);
1138 diagnostic
.option_index
= opt
;
1139 ret
= report_diagnostic (&diagnostic
);
1144 /* Immediate warning (i.e. do not buffer the warning). */
1147 gfc_warning_now (int opt
, const char *gmsgid
, ...)
1150 diagnostic_info diagnostic
;
1151 rich_location
rich_loc (line_table
, UNKNOWN_LOCATION
);
1154 va_start (argp
, gmsgid
);
1155 diagnostic_set_info (&diagnostic
, gmsgid
, &argp
, &rich_loc
,
1157 diagnostic
.option_index
= opt
;
1158 ret
= report_diagnostic (&diagnostic
);
1163 /* Internal warning, do not buffer. */
1166 gfc_warning_internal (int opt
, const char *gmsgid
, ...)
1169 diagnostic_info diagnostic
;
1170 rich_location
rich_loc (line_table
, UNKNOWN_LOCATION
);
1173 va_start (argp
, gmsgid
);
1174 diagnostic_set_info (&diagnostic
, gmsgid
, &argp
, &rich_loc
,
1176 diagnostic
.option_index
= opt
;
1177 ret
= report_diagnostic (&diagnostic
);
1182 /* Immediate error (i.e. do not buffer). */
1185 gfc_error_now (const char *gmsgid
, ...)
1188 diagnostic_info diagnostic
;
1189 rich_location
rich_loc (line_table
, UNKNOWN_LOCATION
);
1191 error_buffer
.flag
= true;
1193 va_start (argp
, gmsgid
);
1194 diagnostic_set_info (&diagnostic
, gmsgid
, &argp
, &rich_loc
, DK_ERROR
);
1195 report_diagnostic (&diagnostic
);
1200 /* Fatal error, never returns. */
1203 gfc_fatal_error (const char *gmsgid
, ...)
1206 diagnostic_info diagnostic
;
1207 rich_location
rich_loc (line_table
, UNKNOWN_LOCATION
);
1209 va_start (argp
, gmsgid
);
1210 diagnostic_set_info (&diagnostic
, gmsgid
, &argp
, &rich_loc
, DK_FATAL
);
1211 report_diagnostic (&diagnostic
);
1217 /* Clear the warning flag. */
1220 gfc_clear_warning (void)
1222 gfc_clear_pp_buffer (pp_warning_buffer
);
1223 warningcount_buffered
= 0;
1224 werrorcount_buffered
= 0;
1228 /* Check to see if any warnings have been saved.
1229 If so, print the warning. */
1232 gfc_warning_check (void)
1234 if (! gfc_output_buffer_empty_p (pp_warning_buffer
))
1236 pretty_printer
*pp
= global_dc
->printer
;
1237 output_buffer
*tmp_buffer
= pp
->buffer
;
1238 pp
->buffer
= pp_warning_buffer
;
1239 pp_really_flush (pp
);
1240 warningcount
+= warningcount_buffered
;
1241 werrorcount
+= werrorcount_buffered
;
1242 gcc_assert (warningcount_buffered
+ werrorcount_buffered
== 1);
1243 pp
->buffer
= tmp_buffer
;
1244 diagnostic_action_after_output (global_dc
,
1245 warningcount_buffered
1246 ? DK_WARNING
: DK_ERROR
);
1247 diagnostic_check_max_errors (global_dc
, true);
1252 /* Issue an error. */
1255 gfc_error_opt (int opt
, const char *gmsgid
, va_list ap
)
1259 bool saved_abort_on_error
= false;
1261 if (warnings_not_errors
)
1263 gfc_warning (opt
, gmsgid
, argp
);
1268 if (suppress_errors
)
1274 diagnostic_info diagnostic
;
1275 rich_location
richloc (line_table
, UNKNOWN_LOCATION
);
1276 bool fatal_errors
= global_dc
->fatal_errors
;
1277 pretty_printer
*pp
= global_dc
->printer
;
1278 output_buffer
*tmp_buffer
= pp
->buffer
;
1280 gfc_clear_pp_buffer (pp_error_buffer
);
1284 /* To prevent -dH from triggering an abort on a buffered error,
1285 save abort_on_error and restore it below. */
1286 saved_abort_on_error
= global_dc
->abort_on_error
;
1287 global_dc
->abort_on_error
= false;
1288 pp
->buffer
= pp_error_buffer
;
1289 global_dc
->fatal_errors
= false;
1290 /* To prevent -fmax-errors= triggering, we decrease it before
1291 report_diagnostic increases it. */
1295 diagnostic_set_info (&diagnostic
, gmsgid
, &argp
, &richloc
, DK_ERROR
);
1296 report_diagnostic (&diagnostic
);
1300 pp
->buffer
= tmp_buffer
;
1301 global_dc
->fatal_errors
= fatal_errors
;
1302 global_dc
->abort_on_error
= saved_abort_on_error
;
1311 gfc_error_opt (int opt
, const char *gmsgid
, ...)
1314 va_start (argp
, gmsgid
);
1315 gfc_error_opt (opt
, gmsgid
, argp
);
1321 gfc_error (const char *gmsgid
, ...)
1324 va_start (argp
, gmsgid
);
1325 gfc_error_opt (0, gmsgid
, argp
);
1330 /* This shouldn't happen... but sometimes does. */
1333 gfc_internal_error (const char *gmsgid
, ...)
1337 diagnostic_info diagnostic
;
1338 rich_location
rich_loc (line_table
, UNKNOWN_LOCATION
);
1340 gfc_get_errors (&w
, &e
);
1344 va_start (argp
, gmsgid
);
1345 diagnostic_set_info (&diagnostic
, gmsgid
, &argp
, &rich_loc
, DK_ICE
);
1346 report_diagnostic (&diagnostic
);
1353 /* Clear the error flag when we start to compile a source line. */
1356 gfc_clear_error (void)
1358 error_buffer
.flag
= 0;
1359 warnings_not_errors
= false;
1360 gfc_clear_pp_buffer (pp_error_buffer
);
1364 /* Tests the state of error_flag. */
1367 gfc_error_flag_test (void)
1369 return error_buffer
.flag
1370 || !gfc_output_buffer_empty_p (pp_error_buffer
);
1374 /* Check to see if any errors have been saved.
1375 If so, print the error. Returns the state of error_flag. */
1378 gfc_error_check (void)
1380 if (error_buffer
.flag
1381 || ! gfc_output_buffer_empty_p (pp_error_buffer
))
1383 error_buffer
.flag
= false;
1384 pretty_printer
*pp
= global_dc
->printer
;
1385 output_buffer
*tmp_buffer
= pp
->buffer
;
1386 pp
->buffer
= pp_error_buffer
;
1387 pp_really_flush (pp
);
1389 gcc_assert (gfc_output_buffer_empty_p (pp_error_buffer
));
1390 pp
->buffer
= tmp_buffer
;
1391 diagnostic_action_after_output (global_dc
, DK_ERROR
);
1392 diagnostic_check_max_errors (global_dc
, true);
1399 /* Move the text buffered from FROM to TO, then clear
1400 FROM. Independently if there was text in FROM, TO is also
1404 gfc_move_error_buffer_from_to (gfc_error_buffer
* buffer_from
,
1405 gfc_error_buffer
* buffer_to
)
1407 output_buffer
* from
= &(buffer_from
->buffer
);
1408 output_buffer
* to
= &(buffer_to
->buffer
);
1410 buffer_to
->flag
= buffer_from
->flag
;
1411 buffer_from
->flag
= false;
1413 gfc_clear_pp_buffer (to
);
1414 /* We make sure this is always buffered. */
1415 to
->flush_p
= false;
1417 if (! gfc_output_buffer_empty_p (from
))
1419 const char *str
= output_buffer_formatted_text (from
);
1420 output_buffer_append_r (to
, str
, strlen (str
));
1421 gfc_clear_pp_buffer (from
);
1425 /* Save the existing error state. */
1428 gfc_push_error (gfc_error_buffer
*err
)
1430 gfc_move_error_buffer_from_to (&error_buffer
, err
);
1434 /* Restore a previous pushed error state. */
1437 gfc_pop_error (gfc_error_buffer
*err
)
1439 gfc_move_error_buffer_from_to (err
, &error_buffer
);
1443 /* Free a pushed error state, but keep the current error state. */
1446 gfc_free_error (gfc_error_buffer
*err
)
1448 gfc_clear_pp_buffer (&(err
->buffer
));
1452 /* Report the number of warnings and errors that occurred to the caller. */
1455 gfc_get_errors (int *w
, int *e
)
1458 *w
= warningcount
+ werrorcount
;
1460 *e
= errorcount
+ sorrycount
+ werrorcount
;
1464 /* Switch errors into warnings. */
1467 gfc_errors_to_warnings (bool f
)
1469 warnings_not_errors
= f
;
1473 gfc_diagnostics_init (void)
1475 diagnostic_starter (global_dc
) = gfc_diagnostic_starter
;
1476 global_dc
->start_span
= gfc_diagnostic_start_span
;
1477 diagnostic_finalizer (global_dc
) = gfc_diagnostic_finalizer
;
1478 diagnostic_format_decoder (global_dc
) = gfc_format_decoder
;
1479 global_dc
->caret_chars
[0] = '1';
1480 global_dc
->caret_chars
[1] = '2';
1481 pp_warning_buffer
= new (XNEW (output_buffer
)) output_buffer ();
1482 pp_warning_buffer
->flush_p
= false;
1483 /* pp_error_buffer is statically allocated. This simplifies memory
1484 management when using gfc_push/pop_error. */
1485 pp_error_buffer
= &(error_buffer
.buffer
);
1486 pp_error_buffer
->flush_p
= false;
1490 gfc_diagnostics_finish (void)
1492 tree_diagnostics_defaults (global_dc
);
1493 /* We still want to use the gfc starter and finalizer, not the tree
1495 diagnostic_starter (global_dc
) = gfc_diagnostic_starter
;
1496 diagnostic_finalizer (global_dc
) = gfc_diagnostic_finalizer
;
1497 global_dc
->caret_chars
[0] = '^';
1498 global_dc
->caret_chars
[1] = '^';