Commit | Line | Data |
599cee73 |
1 | #!/usr/bin/perl |
2 | |
0ca4541c |
3 | |
4 | $VERSION = '1.00'; |
b75c8c73 |
5 | |
73f0cc2d |
6 | BEGIN { |
7 | push @INC, './lib'; |
8 | } |
599cee73 |
9 | use strict ; |
10 | |
11 | sub DEFAULT_ON () { 1 } |
12 | sub DEFAULT_OFF () { 2 } |
13 | |
14 | my $tree = { |
d3a7d8c7 |
15 | |
16 | 'all' => { |
e476b1b5 |
17 | 'io' => { 'pipe' => DEFAULT_OFF, |
599cee73 |
18 | 'unopened' => DEFAULT_OFF, |
19 | 'closed' => DEFAULT_OFF, |
20 | 'newline' => DEFAULT_OFF, |
21 | 'exec' => DEFAULT_OFF, |
599cee73 |
22 | }, |
e476b1b5 |
23 | 'syntax' => { 'ambiguous' => DEFAULT_OFF, |
599cee73 |
24 | 'semicolon' => DEFAULT_OFF, |
e476b1b5 |
25 | 'precedence' => DEFAULT_OFF, |
4673fc70 |
26 | 'bareword' => DEFAULT_OFF, |
599cee73 |
27 | 'reserved' => DEFAULT_OFF, |
627300f0 |
28 | 'digit' => DEFAULT_OFF, |
599cee73 |
29 | 'parenthesis' => DEFAULT_OFF, |
30 | 'deprecated' => DEFAULT_OFF, |
31 | 'printf' => DEFAULT_OFF, |
e476b1b5 |
32 | 'prototype' => DEFAULT_OFF, |
33 | 'qw' => DEFAULT_OFF, |
599cee73 |
34 | }, |
e476b1b5 |
35 | 'severe' => { 'inplace' => DEFAULT_ON, |
0453d815 |
36 | 'internal' => DEFAULT_ON, |
37 | 'debugging' => DEFAULT_ON, |
e476b1b5 |
38 | 'malloc' => DEFAULT_ON, |
0453d815 |
39 | }, |
e476b1b5 |
40 | 'void' => DEFAULT_OFF, |
41 | 'recursion' => DEFAULT_OFF, |
42 | 'redefine' => DEFAULT_OFF, |
43 | 'numeric' => DEFAULT_OFF, |
44 | 'uninitialized' => DEFAULT_OFF, |
45 | 'once' => DEFAULT_OFF, |
46 | 'misc' => DEFAULT_OFF, |
47 | 'regexp' => DEFAULT_OFF, |
48 | 'glob' => DEFAULT_OFF, |
49 | 'y2k' => DEFAULT_OFF, |
e476b1b5 |
50 | 'untie' => DEFAULT_OFF, |
51 | 'substr' => DEFAULT_OFF, |
52 | 'taint' => DEFAULT_OFF, |
53 | 'signal' => DEFAULT_OFF, |
54 | 'closure' => DEFAULT_OFF, |
55 | 'overflow' => DEFAULT_OFF, |
56 | 'portable' => DEFAULT_OFF, |
57 | 'utf8' => DEFAULT_OFF, |
58 | 'exiting' => DEFAULT_OFF, |
59 | 'pack' => DEFAULT_OFF, |
60 | 'unpack' => DEFAULT_OFF, |
0453d815 |
61 | #'default' => DEFAULT_ON, |
d3a7d8c7 |
62 | } |
63 | } ; |
599cee73 |
64 | |
65 | |
66 | ########################################################################### |
67 | sub tab { |
68 | my($l, $t) = @_; |
69 | $t .= "\t" x ($l - (length($t) + 1) / 8); |
70 | $t; |
71 | } |
72 | |
73 | ########################################################################### |
74 | |
75 | my %list ; |
76 | my %Value ; |
d3a7d8c7 |
77 | my $index ; |
599cee73 |
78 | |
79 | sub walk |
80 | { |
81 | my $tre = shift ; |
82 | my @list = () ; |
83 | my ($k, $v) ; |
84 | |
95dfd3ab |
85 | foreach $k (sort keys %$tre) { |
86 | $v = $tre->{$k}; |
599cee73 |
87 | die "duplicate key $k\n" if defined $list{$k} ; |
88 | $Value{$index} = uc $k ; |
89 | push @{ $list{$k} }, $index ++ ; |
90 | if (ref $v) |
91 | { push (@{ $list{$k} }, walk ($v)) } |
92 | push @list, @{ $list{$k} } ; |
93 | } |
94 | |
95 | return @list ; |
599cee73 |
96 | } |
97 | |
98 | ########################################################################### |
99 | |
100 | sub mkRange |
101 | { |
102 | my @a = @_ ; |
103 | my @out = @a ; |
104 | my $i ; |
105 | |
106 | |
107 | for ($i = 1 ; $i < @a; ++ $i) { |
0ca4541c |
108 | $out[$i] = ".." |
599cee73 |
109 | if $a[$i] == $a[$i - 1] + 1 && $a[$i] + 1 == $a[$i + 1] ; |
110 | } |
111 | |
112 | my $out = join(",",@out); |
113 | |
114 | $out =~ s/,(\.\.,)+/../g ; |
115 | return $out; |
116 | } |
117 | |
118 | ########################################################################### |
e476b1b5 |
119 | sub printTree |
120 | { |
121 | my $tre = shift ; |
122 | my $prefix = shift ; |
123 | my $indent = shift ; |
124 | my ($k, $v) ; |
125 | |
126 | my $max = (sort {$a <=> $b} map { length $_ } keys %$tre)[-1] ; |
127 | |
128 | $prefix .= " " x $indent ; |
129 | foreach $k (sort keys %$tre) { |
130 | $v = $tre->{$k}; |
131 | print $prefix . "|\n" ; |
132 | print $prefix . "+- $k" ; |
133 | if (ref $v) |
0ca4541c |
134 | { |
e476b1b5 |
135 | print " " . "-" x ($max - length $k ) . "+\n" ; |
0ca4541c |
136 | printTree ($v, $prefix . "|" , $max + $indent - 1) |
e476b1b5 |
137 | } |
138 | else |
139 | { print "\n" } |
140 | } |
141 | |
142 | } |
143 | |
144 | ########################################################################### |
599cee73 |
145 | |
317ea90d |
146 | sub mkHexOct |
599cee73 |
147 | { |
317ea90d |
148 | my ($f, $max, @a) = @_ ; |
599cee73 |
149 | my $mask = "\x00" x $max ; |
150 | my $string = "" ; |
151 | |
152 | foreach (@a) { |
153 | vec($mask, $_, 1) = 1 ; |
154 | } |
155 | |
599cee73 |
156 | foreach (unpack("C*", $mask)) { |
317ea90d |
157 | if ($f eq 'x') { |
158 | $string .= '\x' . sprintf("%2.2x", $_) |
159 | } |
160 | else { |
161 | $string .= '\\' . sprintf("%o", $_) |
162 | } |
599cee73 |
163 | } |
164 | return $string ; |
165 | } |
166 | |
317ea90d |
167 | sub mkHex |
168 | { |
169 | my($max, @a) = @_; |
170 | return mkHexOct("x", $max, @a); |
171 | } |
172 | |
173 | sub mkOct |
174 | { |
175 | my($max, @a) = @_; |
176 | return mkHexOct("o", $max, @a); |
177 | } |
178 | |
599cee73 |
179 | ########################################################################### |
180 | |
e476b1b5 |
181 | if (@ARGV && $ARGV[0] eq "tree") |
182 | { |
d3a7d8c7 |
183 | #print " all -+\n" ; |
e476b1b5 |
184 | printTree($tree, " ", 4) ; |
185 | exit ; |
186 | } |
599cee73 |
187 | |
918426be |
188 | unlink "warnings.h"; |
189 | unlink "lib/warnings.pm"; |
4438c4b7 |
190 | open(WARN, ">warnings.h") || die "Can't create warnings.h: $!\n"; |
191 | open(PM, ">lib/warnings.pm") || die "Can't create lib/warnings.pm: $!\n"; |
599cee73 |
192 | |
193 | print WARN <<'EOM' ; |
194 | /* !!!!!!! DO NOT EDIT THIS FILE !!!!!!! |
4438c4b7 |
195 | This file is built by warnings.pl |
599cee73 |
196 | Any changes made here will be lost! |
197 | */ |
198 | |
199 | |
0453d815 |
200 | #define Off(x) ((x) / 8) |
201 | #define Bit(x) (1 << ((x) % 8)) |
599cee73 |
202 | #define IsSet(a, x) ((a)[Off(x)] & Bit(x)) |
203 | |
0453d815 |
204 | |
599cee73 |
205 | #define G_WARN_OFF 0 /* $^W == 0 */ |
0453d815 |
206 | #define G_WARN_ON 1 /* -w flag and $^W != 0 */ |
599cee73 |
207 | #define G_WARN_ALL_ON 2 /* -W flag */ |
208 | #define G_WARN_ALL_OFF 4 /* -X flag */ |
0453d815 |
209 | #define G_WARN_ONCE 8 /* set if 'once' ever enabled */ |
599cee73 |
210 | #define G_WARN_ALL_MASK (G_WARN_ALL_ON|G_WARN_ALL_OFF) |
211 | |
d3a7d8c7 |
212 | #define pWARN_STD Nullsv |
213 | #define pWARN_ALL (Nullsv+1) /* use warnings 'all' */ |
214 | #define pWARN_NONE (Nullsv+2) /* no warnings 'all' */ |
599cee73 |
215 | |
d3a7d8c7 |
216 | #define specialWARN(x) ((x) == pWARN_STD || (x) == pWARN_ALL || \ |
217 | (x) == pWARN_NONE) |
599cee73 |
218 | EOM |
219 | |
d3a7d8c7 |
220 | my $offset = 0 ; |
221 | |
222 | $index = $offset ; |
223 | #@{ $list{"all"} } = walk ($tree) ; |
224 | walk ($tree) ; |
599cee73 |
225 | |
599cee73 |
226 | |
227 | $index *= 2 ; |
228 | my $warn_size = int($index / 8) + ($index % 8 != 0) ; |
229 | |
230 | my $k ; |
231 | foreach $k (sort { $a <=> $b } keys %Value) { |
232 | print WARN tab(5, "#define WARN_$Value{$k}"), "$k\n" ; |
233 | } |
234 | print WARN "\n" ; |
235 | |
236 | print WARN tab(5, '#define WARNsize'), "$warn_size\n" ; |
237 | #print WARN tab(5, '#define WARN_ALLstring'), '"', ('\377' x $warn_size) , "\"\n" ; |
238 | print WARN tab(5, '#define WARN_ALLstring'), '"', ('\125' x $warn_size) , "\"\n" ; |
239 | print WARN tab(5, '#define WARN_NONEstring'), '"', ('\0' x $warn_size) , "\"\n" ; |
317ea90d |
240 | my $WARN_TAINTstring = mkOct($warn_size, map $_ * 2, @{ $list{'taint'} }); |
241 | |
242 | print WARN tab(5, '#define WARN_TAINTstring'), qq["$WARN_TAINTstring"\n] ; |
599cee73 |
243 | |
244 | print WARN <<'EOM'; |
245 | |
d5a71f30 |
246 | #define isLEXWARN_on (PL_curcop->cop_warnings != pWARN_STD) |
247 | #define isLEXWARN_off (PL_curcop->cop_warnings == pWARN_STD) |
248 | #define isWARN_ONCE (PL_dowarn & (G_WARN_ON|G_WARN_ONCE)) |
249 | #define isWARN_on(c,x) (IsSet(SvPVX(c), 2*(x))) |
250 | #define isWARNf_on(c,x) (IsSet(SvPVX(c), 2*(x)+1)) |
251 | |
252 | #define ckDEAD(x) \ |
253 | ( ! specialWARN(PL_curcop->cop_warnings) && \ |
254 | ( isWARNf_on(PL_curcop->cop_warnings, WARN_ALL) || \ |
255 | isWARNf_on(PL_curcop->cop_warnings, x))) |
256 | |
257 | #define ckWARN(x) \ |
258 | ( (isLEXWARN_on && PL_curcop->cop_warnings != pWARN_NONE && \ |
259 | (PL_curcop->cop_warnings == pWARN_ALL || \ |
260 | isWARN_on(PL_curcop->cop_warnings, x) ) ) \ |
261 | || (isLEXWARN_off && PL_dowarn & G_WARN_ON) ) |
262 | |
263 | #define ckWARN2(x,y) \ |
264 | ( (isLEXWARN_on && PL_curcop->cop_warnings != pWARN_NONE && \ |
265 | (PL_curcop->cop_warnings == pWARN_ALL || \ |
266 | isWARN_on(PL_curcop->cop_warnings, x) || \ |
267 | isWARN_on(PL_curcop->cop_warnings, y) ) ) \ |
268 | || (isLEXWARN_off && PL_dowarn & G_WARN_ON) ) |
269 | |
270 | #define ckWARN_d(x) \ |
271 | (isLEXWARN_off || PL_curcop->cop_warnings == pWARN_ALL || \ |
272 | (PL_curcop->cop_warnings != pWARN_NONE && \ |
273 | isWARN_on(PL_curcop->cop_warnings, x) ) ) |
274 | |
275 | #define ckWARN2_d(x,y) \ |
276 | (isLEXWARN_off || PL_curcop->cop_warnings == pWARN_ALL || \ |
277 | (PL_curcop->cop_warnings != pWARN_NONE && \ |
278 | (isWARN_on(PL_curcop->cop_warnings, x) || \ |
279 | isWARN_on(PL_curcop->cop_warnings, y) ) ) ) |
280 | |
4438c4b7 |
281 | /* end of file warnings.h */ |
599cee73 |
282 | |
283 | EOM |
284 | |
285 | close WARN ; |
286 | |
287 | while (<DATA>) { |
288 | last if /^KEYWORDS$/ ; |
289 | print PM $_ ; |
290 | } |
291 | |
d3a7d8c7 |
292 | #$list{'all'} = [ $offset .. 8 * ($warn_size/2) - 1 ] ; |
293 | |
294 | #my %Keys = map {lc $Value{$_}, $_} keys %Value ; |
295 | |
296 | print PM "%Offsets = (\n" ; |
297 | foreach my $k (sort { $a <=> $b } keys %Value) { |
298 | my $v = lc $Value{$k} ; |
299 | $k *= 2 ; |
300 | print PM tab(4, " '$v'"), "=> $k,\n" ; |
301 | } |
302 | |
303 | print PM " );\n\n" ; |
304 | |
599cee73 |
305 | print PM "%Bits = (\n" ; |
306 | foreach $k (sort keys %list) { |
307 | |
308 | my $v = $list{$k} ; |
309 | my @list = sort { $a <=> $b } @$v ; |
310 | |
0ca4541c |
311 | print PM tab(4, " '$k'"), '=> "', |
312 | # mkHex($warn_size, @list), |
313 | mkHex($warn_size, map $_ * 2 , @list), |
599cee73 |
314 | '", # [', mkRange(@list), "]\n" ; |
315 | } |
316 | |
317 | print PM " );\n\n" ; |
318 | |
319 | print PM "%DeadBits = (\n" ; |
320 | foreach $k (sort keys %list) { |
321 | |
322 | my $v = $list{$k} ; |
323 | my @list = sort { $a <=> $b } @$v ; |
324 | |
0ca4541c |
325 | print PM tab(4, " '$k'"), '=> "', |
326 | # mkHex($warn_size, @list), |
327 | mkHex($warn_size, map $_ * 2 + 1 , @list), |
599cee73 |
328 | '", # [', mkRange(@list), "]\n" ; |
329 | } |
330 | |
331 | print PM " );\n\n" ; |
d3a7d8c7 |
332 | print PM '$NONE = "', ('\0' x $warn_size) , "\";\n" ; |
333 | print PM '$LAST_BIT = ' . "$index ;\n" ; |
334 | print PM '$BYTES = ' . "$warn_size ;\n" ; |
599cee73 |
335 | while (<DATA>) { |
336 | print PM $_ ; |
337 | } |
338 | |
339 | close PM ; |
340 | |
341 | __END__ |
342 | |
4438c4b7 |
343 | # This file was created by warnings.pl |
599cee73 |
344 | # Any changes made here will be lost. |
345 | # |
346 | |
4438c4b7 |
347 | package warnings; |
599cee73 |
348 | |
b75c8c73 |
349 | our $VERSION = '1.00'; |
350 | |
599cee73 |
351 | =head1 NAME |
352 | |
4438c4b7 |
353 | warnings - Perl pragma to control optional warnings |
599cee73 |
354 | |
355 | =head1 SYNOPSIS |
356 | |
4438c4b7 |
357 | use warnings; |
358 | no warnings; |
599cee73 |
359 | |
4438c4b7 |
360 | use warnings "all"; |
361 | no warnings "all"; |
599cee73 |
362 | |
d3a7d8c7 |
363 | use warnings::register; |
364 | if (warnings::enabled()) { |
365 | warnings::warn("some warning"); |
366 | } |
367 | |
368 | if (warnings::enabled("void")) { |
e476b1b5 |
369 | warnings::warn("void", "some warning"); |
370 | } |
371 | |
7e6d00f8 |
372 | if (warnings::enabled($object)) { |
373 | warnings::warn($object, "some warning"); |
374 | } |
375 | |
376 | warnif("some warning"); |
377 | warnif("void", "some warning"); |
378 | warnif($object, "some warning"); |
379 | |
599cee73 |
380 | =head1 DESCRIPTION |
381 | |
0453d815 |
382 | If no import list is supplied, all possible warnings are either enabled |
383 | or disabled. |
599cee73 |
384 | |
0ca4541c |
385 | A number of functions are provided to assist module authors. |
e476b1b5 |
386 | |
387 | =over 4 |
388 | |
d3a7d8c7 |
389 | =item use warnings::register |
390 | |
7e6d00f8 |
391 | Creates a new warnings category with the same name as the package where |
392 | the call to the pragma is used. |
393 | |
394 | =item warnings::enabled() |
395 | |
396 | Use the warnings category with the same name as the current package. |
397 | |
398 | Return TRUE if that warnings category is enabled in the calling module. |
399 | Otherwise returns FALSE. |
400 | |
401 | =item warnings::enabled($category) |
402 | |
403 | Return TRUE if the warnings category, C<$category>, is enabled in the |
404 | calling module. |
405 | Otherwise returns FALSE. |
406 | |
407 | =item warnings::enabled($object) |
408 | |
409 | Use the name of the class for the object reference, C<$object>, as the |
410 | warnings category. |
411 | |
412 | Return TRUE if that warnings category is enabled in the first scope |
413 | where the object is used. |
414 | Otherwise returns FALSE. |
415 | |
416 | =item warnings::warn($message) |
417 | |
418 | Print C<$message> to STDERR. |
419 | |
420 | Use the warnings category with the same name as the current package. |
421 | |
422 | If that warnings category has been set to "FATAL" in the calling module |
423 | then die. Otherwise return. |
424 | |
425 | =item warnings::warn($category, $message) |
426 | |
427 | Print C<$message> to STDERR. |
428 | |
429 | If the warnings category, C<$category>, has been set to "FATAL" in the |
430 | calling module then die. Otherwise return. |
d3a7d8c7 |
431 | |
7e6d00f8 |
432 | =item warnings::warn($object, $message) |
e476b1b5 |
433 | |
7e6d00f8 |
434 | Print C<$message> to STDERR. |
e476b1b5 |
435 | |
7e6d00f8 |
436 | Use the name of the class for the object reference, C<$object>, as the |
437 | warnings category. |
e476b1b5 |
438 | |
7e6d00f8 |
439 | If that warnings category has been set to "FATAL" in the scope where C<$object> |
440 | is first used then die. Otherwise return. |
599cee73 |
441 | |
e476b1b5 |
442 | |
7e6d00f8 |
443 | =item warnings::warnif($message) |
444 | |
445 | Equivalent to: |
446 | |
447 | if (warnings::enabled()) |
448 | { warnings::warn($message) } |
449 | |
450 | =item warnings::warnif($category, $message) |
451 | |
452 | Equivalent to: |
453 | |
454 | if (warnings::enabled($category)) |
455 | { warnings::warn($category, $message) } |
456 | |
457 | =item warnings::warnif($object, $message) |
458 | |
459 | Equivalent to: |
460 | |
461 | if (warnings::enabled($object)) |
462 | { warnings::warn($object, $message) } |
d3a7d8c7 |
463 | |
e476b1b5 |
464 | =back |
465 | |
749f83fa |
466 | See L<perlmodlib/Pragmatic Modules> and L<perllexwarn>. |
599cee73 |
467 | |
468 | =cut |
469 | |
470 | use Carp ; |
471 | |
472 | KEYWORDS |
473 | |
d3a7d8c7 |
474 | $All = "" ; vec($All, $Offsets{'all'}, 2) = 3 ; |
475 | |
599cee73 |
476 | sub bits { |
477 | my $mask ; |
478 | my $catmask ; |
479 | my $fatal = 0 ; |
480 | foreach my $word (@_) { |
327afb7f |
481 | if ($word eq 'FATAL') { |
482 | $fatal = 1; |
483 | } |
d3a7d8c7 |
484 | elsif ($catmask = $Bits{$word}) { |
485 | $mask |= $catmask ; |
486 | $mask |= $DeadBits{$word} if $fatal ; |
599cee73 |
487 | } |
d3a7d8c7 |
488 | else |
3d1a39c8 |
489 | { croak("Unknown warnings category '$word'")} |
599cee73 |
490 | } |
491 | |
492 | return $mask ; |
493 | } |
494 | |
495 | sub import { |
496 | shift; |
f1f33818 |
497 | my $mask = ${^WARNING_BITS} ; |
498 | if (vec($mask, $Offsets{'all'}, 1)) { |
499 | $mask |= $Bits{'all'} ; |
500 | $mask |= $DeadBits{'all'} if vec($mask, $Offsets{'all'}+1, 1); |
501 | } |
502 | ${^WARNING_BITS} = $mask | bits(@_ ? @_ : 'all') ; |
599cee73 |
503 | } |
504 | |
505 | sub unimport { |
506 | shift; |
d3a7d8c7 |
507 | my $mask = ${^WARNING_BITS} ; |
508 | if (vec($mask, $Offsets{'all'}, 1)) { |
f1f33818 |
509 | $mask |= $Bits{'all'} ; |
d3a7d8c7 |
510 | $mask |= $DeadBits{'all'} if vec($mask, $Offsets{'all'}+1, 1); |
511 | } |
08540116 |
512 | ${^WARNING_BITS} = $mask & ~ (bits('FATAL' => (@_ ? @_ : 'all')) | $All) ; |
599cee73 |
513 | } |
514 | |
7e6d00f8 |
515 | sub __chk |
599cee73 |
516 | { |
d3a7d8c7 |
517 | my $category ; |
518 | my $offset ; |
7e6d00f8 |
519 | my $isobj = 0 ; |
d3a7d8c7 |
520 | |
521 | if (@_) { |
522 | # check the category supplied. |
523 | $category = shift ; |
7e6d00f8 |
524 | if (ref $category) { |
525 | croak ("not an object") |
3d1a39c8 |
526 | if $category !~ /^([^=]+)=/ ; |
7e6d00f8 |
527 | $category = $1 ; |
528 | $isobj = 1 ; |
529 | } |
d3a7d8c7 |
530 | $offset = $Offsets{$category}; |
3d1a39c8 |
531 | croak("Unknown warnings category '$category'") |
d3a7d8c7 |
532 | unless defined $offset; |
533 | } |
534 | else { |
0ca4541c |
535 | $category = (caller(1))[0] ; |
d3a7d8c7 |
536 | $offset = $Offsets{$category}; |
537 | croak("package '$category' not registered for warnings") |
538 | unless defined $offset ; |
539 | } |
540 | |
0ca4541c |
541 | my $this_pkg = (caller(1))[0] ; |
7e6d00f8 |
542 | my $i = 2 ; |
543 | my $pkg ; |
544 | |
545 | if ($isobj) { |
546 | while (do { { package DB; $pkg = (caller($i++))[0] } } ) { |
547 | last unless @DB::args && $DB::args[0] =~ /^$category=/ ; |
548 | } |
549 | $i -= 2 ; |
550 | } |
551 | else { |
552 | for ($i = 2 ; $pkg = (caller($i))[0] ; ++ $i) { |
553 | last if $pkg ne $this_pkg ; |
554 | } |
0ca4541c |
555 | $i = 2 |
7e6d00f8 |
556 | if !$pkg || $pkg eq $this_pkg ; |
557 | } |
558 | |
0ca4541c |
559 | my $callers_bitmask = (caller($i))[9] ; |
7e6d00f8 |
560 | return ($callers_bitmask, $offset, $i) ; |
561 | } |
562 | |
563 | sub enabled |
564 | { |
565 | croak("Usage: warnings::enabled([category])") |
566 | unless @_ == 1 || @_ == 0 ; |
567 | |
568 | my ($callers_bitmask, $offset, $i) = __chk(@_) ; |
569 | |
570 | return 0 unless defined $callers_bitmask ; |
d3a7d8c7 |
571 | return vec($callers_bitmask, $offset, 1) || |
572 | vec($callers_bitmask, $Offsets{'all'}, 1) ; |
599cee73 |
573 | } |
574 | |
d3a7d8c7 |
575 | |
e476b1b5 |
576 | sub warn |
577 | { |
d3a7d8c7 |
578 | croak("Usage: warnings::warn([category,] 'message')") |
579 | unless @_ == 2 || @_ == 1 ; |
d3a7d8c7 |
580 | |
7e6d00f8 |
581 | my $message = pop ; |
582 | my ($callers_bitmask, $offset, $i) = __chk(@_) ; |
583 | local $Carp::CarpLevel = $i ; |
0ca4541c |
584 | croak($message) |
d3a7d8c7 |
585 | if vec($callers_bitmask, $offset+1, 1) || |
586 | vec($callers_bitmask, $Offsets{'all'}+1, 1) ; |
e476b1b5 |
587 | carp($message) ; |
588 | } |
589 | |
7e6d00f8 |
590 | sub warnif |
591 | { |
592 | croak("Usage: warnings::warnif([category,] 'message')") |
593 | unless @_ == 2 || @_ == 1 ; |
594 | |
595 | my $message = pop ; |
596 | my ($callers_bitmask, $offset, $i) = __chk(@_) ; |
597 | local $Carp::CarpLevel = $i ; |
598 | |
0ca4541c |
599 | return |
7e6d00f8 |
600 | unless defined $callers_bitmask && |
601 | (vec($callers_bitmask, $offset, 1) || |
602 | vec($callers_bitmask, $Offsets{'all'}, 1)) ; |
603 | |
0ca4541c |
604 | croak($message) |
7e6d00f8 |
605 | if vec($callers_bitmask, $offset+1, 1) || |
606 | vec($callers_bitmask, $Offsets{'all'}+1, 1) ; |
607 | |
608 | carp($message) ; |
609 | } |
599cee73 |
610 | 1; |