| 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 | |
| 0d658bf5 |
16 | 'all' => [ 5.008, { |
| 17 | 'io' => [ 5.008, { |
| 18 | 'pipe' => [ 5.008, DEFAULT_OFF], |
| 19 | 'unopened' => [ 5.008, DEFAULT_OFF], |
| 20 | 'closed' => [ 5.008, DEFAULT_OFF], |
| 21 | 'newline' => [ 5.008, DEFAULT_OFF], |
| 22 | 'exec' => [ 5.008, DEFAULT_OFF], |
| 23 | 'layer' => [ 5.008, DEFAULT_OFF], |
| 24 | }], |
| 25 | 'syntax' => [ 5.008, { |
| 26 | 'ambiguous' => [ 5.008, DEFAULT_OFF], |
| 27 | 'semicolon' => [ 5.008, DEFAULT_OFF], |
| 28 | 'precedence' => [ 5.008, DEFAULT_OFF], |
| 29 | 'bareword' => [ 5.008, DEFAULT_OFF], |
| 30 | 'reserved' => [ 5.008, DEFAULT_OFF], |
| 31 | 'digit' => [ 5.008, DEFAULT_OFF], |
| 32 | 'parenthesis' => [ 5.008, DEFAULT_OFF], |
| 33 | 'printf' => [ 5.008, DEFAULT_OFF], |
| 34 | 'prototype' => [ 5.008, DEFAULT_OFF], |
| 35 | 'qw' => [ 5.008, DEFAULT_OFF], |
| 36 | }], |
| 37 | 'severe' => [ 5.008, { |
| 38 | 'inplace' => [ 5.008, DEFAULT_ON], |
| 39 | 'internal' => [ 5.008, DEFAULT_ON], |
| 40 | 'debugging' => [ 5.008, DEFAULT_ON], |
| 41 | 'malloc' => [ 5.008, DEFAULT_ON], |
| 42 | }], |
| 43 | 'deprecated' => [ 5.008, DEFAULT_OFF], |
| 44 | 'void' => [ 5.008, DEFAULT_OFF], |
| 45 | 'recursion' => [ 5.008, DEFAULT_OFF], |
| 46 | 'redefine' => [ 5.008, DEFAULT_OFF], |
| 47 | 'numeric' => [ 5.008, DEFAULT_OFF], |
| 48 | 'uninitialized' => [ 5.008, DEFAULT_OFF], |
| 49 | 'once' => [ 5.008, DEFAULT_OFF], |
| 50 | 'misc' => [ 5.008, DEFAULT_OFF], |
| 51 | 'regexp' => [ 5.008, DEFAULT_OFF], |
| 52 | 'glob' => [ 5.008, DEFAULT_OFF], |
| 53 | 'y2k' => [ 5.008, DEFAULT_OFF], |
| 54 | 'untie' => [ 5.008, DEFAULT_OFF], |
| 55 | 'substr' => [ 5.008, DEFAULT_OFF], |
| 56 | 'taint' => [ 5.008, DEFAULT_OFF], |
| 57 | 'signal' => [ 5.008, DEFAULT_OFF], |
| 58 | 'closure' => [ 5.008, DEFAULT_OFF], |
| 59 | 'overflow' => [ 5.008, DEFAULT_OFF], |
| 60 | 'portable' => [ 5.008, DEFAULT_OFF], |
| 61 | 'utf8' => [ 5.008, DEFAULT_OFF], |
| 62 | 'exiting' => [ 5.008, DEFAULT_OFF], |
| 63 | 'pack' => [ 5.008, DEFAULT_OFF], |
| 64 | 'unpack' => [ 5.008, DEFAULT_OFF], |
| 38875929 |
65 | 'threads' => [ 5.008, DEFAULT_OFF], |
| 8fa7688f |
66 | 'assertions' => [ 5.009, DEFAULT_OFF], |
| 67 | |
| 0d658bf5 |
68 | #'default' => [ 5.008, DEFAULT_ON ], |
| 69 | }], |
| d3a7d8c7 |
70 | } ; |
| 599cee73 |
71 | |
| 599cee73 |
72 | ########################################################################### |
| 73 | sub tab { |
| 74 | my($l, $t) = @_; |
| 75 | $t .= "\t" x ($l - (length($t) + 1) / 8); |
| 76 | $t; |
| 77 | } |
| 78 | |
| 79 | ########################################################################### |
| 80 | |
| 81 | my %list ; |
| 82 | my %Value ; |
| 0d658bf5 |
83 | my %ValueToName ; |
| 84 | my %NameToValue ; |
| d3a7d8c7 |
85 | my $index ; |
| 599cee73 |
86 | |
| 0d658bf5 |
87 | my %v_list = () ; |
| 88 | |
| 89 | sub valueWalk |
| 90 | { |
| 91 | my $tre = shift ; |
| 92 | my @list = () ; |
| 93 | my ($k, $v) ; |
| 94 | |
| 95 | foreach $k (sort keys %$tre) { |
| 96 | $v = $tre->{$k}; |
| 97 | die "duplicate key $k\n" if defined $list{$k} ; |
| 98 | die "Value associated with key '$k' is not an ARRAY reference" |
| 99 | if !ref $v || ref $v ne 'ARRAY' ; |
| 100 | |
| 101 | my ($ver, $rest) = @{ $v } ; |
| 102 | push @{ $v_list{$ver} }, $k; |
| 103 | |
| 104 | if (ref $rest) |
| 105 | { valueWalk ($rest) } |
| 106 | |
| 107 | } |
| 108 | |
| 109 | } |
| 110 | |
| 111 | sub orderValues |
| 112 | { |
| 113 | my $index = 0; |
| 114 | foreach my $ver ( sort { $a <=> $b } keys %v_list ) { |
| 115 | foreach my $name (@{ $v_list{$ver} } ) { |
| 116 | $ValueToName{ $index } = [ uc $name, $ver ] ; |
| 117 | $NameToValue{ uc $name } = $index ++ ; |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | return $index ; |
| 122 | } |
| 123 | |
| 124 | ########################################################################### |
| 125 | |
| 599cee73 |
126 | sub walk |
| 127 | { |
| 128 | my $tre = shift ; |
| 129 | my @list = () ; |
| 130 | my ($k, $v) ; |
| 131 | |
| 95dfd3ab |
132 | foreach $k (sort keys %$tre) { |
| 133 | $v = $tre->{$k}; |
| 599cee73 |
134 | die "duplicate key $k\n" if defined $list{$k} ; |
| 0d658bf5 |
135 | #$Value{$index} = uc $k ; |
| 136 | die "Can't find key '$k'" |
| 137 | if ! defined $NameToValue{uc $k} ; |
| 138 | push @{ $list{$k} }, $NameToValue{uc $k} ; |
| 139 | die "Value associated with key '$k' is not an ARRAY reference" |
| 140 | if !ref $v || ref $v ne 'ARRAY' ; |
| 141 | |
| 142 | my ($ver, $rest) = @{ $v } ; |
| 143 | if (ref $rest) |
| 144 | { push (@{ $list{$k} }, walk ($rest)) } |
| 145 | |
| 599cee73 |
146 | push @list, @{ $list{$k} } ; |
| 147 | } |
| 148 | |
| 149 | return @list ; |
| 599cee73 |
150 | } |
| 151 | |
| 152 | ########################################################################### |
| 153 | |
| 154 | sub mkRange |
| 155 | { |
| 156 | my @a = @_ ; |
| 157 | my @out = @a ; |
| 158 | my $i ; |
| 159 | |
| 160 | |
| 161 | for ($i = 1 ; $i < @a; ++ $i) { |
| 0ca4541c |
162 | $out[$i] = ".." |
| 599cee73 |
163 | if $a[$i] == $a[$i - 1] + 1 && $a[$i] + 1 == $a[$i + 1] ; |
| 164 | } |
| 165 | |
| 166 | my $out = join(",",@out); |
| 167 | |
| 168 | $out =~ s/,(\.\.,)+/../g ; |
| 169 | return $out; |
| 170 | } |
| 171 | |
| 172 | ########################################################################### |
| e476b1b5 |
173 | sub printTree |
| 174 | { |
| 175 | my $tre = shift ; |
| 176 | my $prefix = shift ; |
| e476b1b5 |
177 | my ($k, $v) ; |
| 178 | |
| 179 | my $max = (sort {$a <=> $b} map { length $_ } keys %$tre)[-1] ; |
| 0d658bf5 |
180 | my @keys = sort keys %$tre ; |
| e476b1b5 |
181 | |
| 0d658bf5 |
182 | while ($k = shift @keys) { |
| e476b1b5 |
183 | $v = $tre->{$k}; |
| 0d658bf5 |
184 | die "Value associated with key '$k' is not an ARRAY reference" |
| 185 | if !ref $v || ref $v ne 'ARRAY' ; |
| 186 | |
| 187 | my $offset ; |
| 188 | if ($tre ne $tree) { |
| 189 | print $prefix . "|\n" ; |
| 190 | print $prefix . "+- $k" ; |
| 191 | $offset = ' ' x ($max + 4) ; |
| 192 | } |
| 193 | else { |
| 194 | print $prefix . "$k" ; |
| 195 | $offset = ' ' x ($max + 1) ; |
| 196 | } |
| 197 | |
| 198 | my ($ver, $rest) = @{ $v } ; |
| 199 | if (ref $rest) |
| 0ca4541c |
200 | { |
| 0d658bf5 |
201 | my $bar = @keys ? "|" : " "; |
| 202 | print " -" . "-" x ($max - length $k ) . "+\n" ; |
| 203 | printTree ($rest, $prefix . $bar . $offset ) |
| e476b1b5 |
204 | } |
| 205 | else |
| 206 | { print "\n" } |
| 207 | } |
| 208 | |
| 209 | } |
| 210 | |
| 211 | ########################################################################### |
| 599cee73 |
212 | |
| 317ea90d |
213 | sub mkHexOct |
| 599cee73 |
214 | { |
| 317ea90d |
215 | my ($f, $max, @a) = @_ ; |
| 599cee73 |
216 | my $mask = "\x00" x $max ; |
| 217 | my $string = "" ; |
| 218 | |
| 219 | foreach (@a) { |
| 220 | vec($mask, $_, 1) = 1 ; |
| 221 | } |
| 222 | |
| 599cee73 |
223 | foreach (unpack("C*", $mask)) { |
| 317ea90d |
224 | if ($f eq 'x') { |
| 225 | $string .= '\x' . sprintf("%2.2x", $_) |
| 226 | } |
| 227 | else { |
| 228 | $string .= '\\' . sprintf("%o", $_) |
| 229 | } |
| 599cee73 |
230 | } |
| 231 | return $string ; |
| 232 | } |
| 233 | |
| 317ea90d |
234 | sub mkHex |
| 235 | { |
| 236 | my($max, @a) = @_; |
| 237 | return mkHexOct("x", $max, @a); |
| 238 | } |
| 239 | |
| 240 | sub mkOct |
| 241 | { |
| 242 | my($max, @a) = @_; |
| 243 | return mkHexOct("o", $max, @a); |
| 244 | } |
| 245 | |
| 599cee73 |
246 | ########################################################################### |
| 247 | |
| e476b1b5 |
248 | if (@ARGV && $ARGV[0] eq "tree") |
| 249 | { |
| 0d658bf5 |
250 | printTree($tree, " ") ; |
| e476b1b5 |
251 | exit ; |
| 252 | } |
| 599cee73 |
253 | |
| 918426be |
254 | unlink "warnings.h"; |
| 255 | unlink "lib/warnings.pm"; |
| 4438c4b7 |
256 | open(WARN, ">warnings.h") || die "Can't create warnings.h: $!\n"; |
| 257 | open(PM, ">lib/warnings.pm") || die "Can't create lib/warnings.pm: $!\n"; |
| 599cee73 |
258 | |
| 259 | print WARN <<'EOM' ; |
| 260 | /* !!!!!!! DO NOT EDIT THIS FILE !!!!!!! |
| 4438c4b7 |
261 | This file is built by warnings.pl |
| 599cee73 |
262 | Any changes made here will be lost! |
| 263 | */ |
| 264 | |
| 265 | |
| 0453d815 |
266 | #define Off(x) ((x) / 8) |
| 267 | #define Bit(x) (1 << ((x) % 8)) |
| 599cee73 |
268 | #define IsSet(a, x) ((a)[Off(x)] & Bit(x)) |
| 269 | |
| 0453d815 |
270 | |
| 599cee73 |
271 | #define G_WARN_OFF 0 /* $^W == 0 */ |
| 0453d815 |
272 | #define G_WARN_ON 1 /* -w flag and $^W != 0 */ |
| 599cee73 |
273 | #define G_WARN_ALL_ON 2 /* -W flag */ |
| 274 | #define G_WARN_ALL_OFF 4 /* -X flag */ |
| 0453d815 |
275 | #define G_WARN_ONCE 8 /* set if 'once' ever enabled */ |
| 599cee73 |
276 | #define G_WARN_ALL_MASK (G_WARN_ALL_ON|G_WARN_ALL_OFF) |
| 277 | |
| d3a7d8c7 |
278 | #define pWARN_STD Nullsv |
| 279 | #define pWARN_ALL (Nullsv+1) /* use warnings 'all' */ |
| 280 | #define pWARN_NONE (Nullsv+2) /* no warnings 'all' */ |
| 599cee73 |
281 | |
| d3a7d8c7 |
282 | #define specialWARN(x) ((x) == pWARN_STD || (x) == pWARN_ALL || \ |
| 283 | (x) == pWARN_NONE) |
| 599cee73 |
284 | EOM |
| 285 | |
| d3a7d8c7 |
286 | my $offset = 0 ; |
| 287 | |
| 288 | $index = $offset ; |
| 289 | #@{ $list{"all"} } = walk ($tree) ; |
| 0d658bf5 |
290 | valueWalk ($tree) ; |
| 291 | my $index = orderValues(); |
| 599cee73 |
292 | |
| 12bcd1a6 |
293 | die <<EOM if $index > 255 ; |
| 294 | Too many warnings categories -- max is 255 |
| 295 | rewrite packWARN* & unpackWARN* macros |
| 296 | EOM |
| 599cee73 |
297 | |
| 0d658bf5 |
298 | walk ($tree) ; |
| 299 | |
| 599cee73 |
300 | $index *= 2 ; |
| 301 | my $warn_size = int($index / 8) + ($index % 8 != 0) ; |
| 302 | |
| 303 | my $k ; |
| 0d658bf5 |
304 | my $last_ver = 0; |
| 305 | foreach $k (sort { $a <=> $b } keys %ValueToName) { |
| 306 | my ($name, $version) = @{ $ValueToName{$k} }; |
| 307 | print WARN "\n/* Warnings Categories added in Perl $version */\n\n" |
| 308 | if $last_ver != $version ; |
| 309 | print WARN tab(5, "#define WARN_$name"), "$k\n" ; |
| 310 | $last_ver = $version ; |
| 599cee73 |
311 | } |
| 312 | print WARN "\n" ; |
| 313 | |
| 314 | print WARN tab(5, '#define WARNsize'), "$warn_size\n" ; |
| 315 | #print WARN tab(5, '#define WARN_ALLstring'), '"', ('\377' x $warn_size) , "\"\n" ; |
| 316 | print WARN tab(5, '#define WARN_ALLstring'), '"', ('\125' x $warn_size) , "\"\n" ; |
| 317 | print WARN tab(5, '#define WARN_NONEstring'), '"', ('\0' x $warn_size) , "\"\n" ; |
| 317ea90d |
318 | my $WARN_TAINTstring = mkOct($warn_size, map $_ * 2, @{ $list{'taint'} }); |
| 319 | |
| 320 | print WARN tab(5, '#define WARN_TAINTstring'), qq["$WARN_TAINTstring"\n] ; |
| 599cee73 |
321 | |
| 322 | print WARN <<'EOM'; |
| 323 | |
| d5a71f30 |
324 | #define isLEXWARN_on (PL_curcop->cop_warnings != pWARN_STD) |
| 325 | #define isLEXWARN_off (PL_curcop->cop_warnings == pWARN_STD) |
| 326 | #define isWARN_ONCE (PL_dowarn & (G_WARN_ON|G_WARN_ONCE)) |
| 327 | #define isWARN_on(c,x) (IsSet(SvPVX(c), 2*(x))) |
| 328 | #define isWARNf_on(c,x) (IsSet(SvPVX(c), 2*(x)+1)) |
| 329 | |
| d5a71f30 |
330 | #define ckWARN(x) \ |
| 331 | ( (isLEXWARN_on && PL_curcop->cop_warnings != pWARN_NONE && \ |
| 332 | (PL_curcop->cop_warnings == pWARN_ALL || \ |
| 333 | isWARN_on(PL_curcop->cop_warnings, x) ) ) \ |
| 334 | || (isLEXWARN_off && PL_dowarn & G_WARN_ON) ) |
| 335 | |
| 336 | #define ckWARN2(x,y) \ |
| 337 | ( (isLEXWARN_on && PL_curcop->cop_warnings != pWARN_NONE && \ |
| 338 | (PL_curcop->cop_warnings == pWARN_ALL || \ |
| 339 | isWARN_on(PL_curcop->cop_warnings, x) || \ |
| 340 | isWARN_on(PL_curcop->cop_warnings, y) ) ) \ |
| 341 | || (isLEXWARN_off && PL_dowarn & G_WARN_ON) ) |
| 342 | |
| 12bcd1a6 |
343 | #define ckWARN3(x,y,z) \ |
| 344 | ( (isLEXWARN_on && PL_curcop->cop_warnings != pWARN_NONE && \ |
| 345 | (PL_curcop->cop_warnings == pWARN_ALL || \ |
| 346 | isWARN_on(PL_curcop->cop_warnings, x) || \ |
| 347 | isWARN_on(PL_curcop->cop_warnings, y) || \ |
| 348 | isWARN_on(PL_curcop->cop_warnings, z) ) ) \ |
| 349 | || (isLEXWARN_off && PL_dowarn & G_WARN_ON) ) |
| 350 | |
| 351 | #define ckWARN4(x,y,z,t) \ |
| 352 | ( (isLEXWARN_on && PL_curcop->cop_warnings != pWARN_NONE && \ |
| 353 | (PL_curcop->cop_warnings == pWARN_ALL || \ |
| 354 | isWARN_on(PL_curcop->cop_warnings, x) || \ |
| 355 | isWARN_on(PL_curcop->cop_warnings, y) || \ |
| 356 | isWARN_on(PL_curcop->cop_warnings, z) || \ |
| 357 | isWARN_on(PL_curcop->cop_warnings, t) ) ) \ |
| 358 | || (isLEXWARN_off && PL_dowarn & G_WARN_ON) ) |
| 359 | |
| d5a71f30 |
360 | #define ckWARN_d(x) \ |
| 361 | (isLEXWARN_off || PL_curcop->cop_warnings == pWARN_ALL || \ |
| 362 | (PL_curcop->cop_warnings != pWARN_NONE && \ |
| 363 | isWARN_on(PL_curcop->cop_warnings, x) ) ) |
| 364 | |
| 365 | #define ckWARN2_d(x,y) \ |
| 366 | (isLEXWARN_off || PL_curcop->cop_warnings == pWARN_ALL || \ |
| 367 | (PL_curcop->cop_warnings != pWARN_NONE && \ |
| 368 | (isWARN_on(PL_curcop->cop_warnings, x) || \ |
| 369 | isWARN_on(PL_curcop->cop_warnings, y) ) ) ) |
| 370 | |
| 12bcd1a6 |
371 | #define ckWARN3_d(x,y,z) \ |
| 372 | (isLEXWARN_off || PL_curcop->cop_warnings == pWARN_ALL || \ |
| 373 | (PL_curcop->cop_warnings != pWARN_NONE && \ |
| 374 | (isWARN_on(PL_curcop->cop_warnings, x) || \ |
| 375 | isWARN_on(PL_curcop->cop_warnings, y) || \ |
| 376 | isWARN_on(PL_curcop->cop_warnings, z) ) ) ) |
| 377 | |
| 378 | #define ckWARN4_d(x,y,z,t) \ |
| 379 | (isLEXWARN_off || PL_curcop->cop_warnings == pWARN_ALL || \ |
| 380 | (PL_curcop->cop_warnings != pWARN_NONE && \ |
| 381 | (isWARN_on(PL_curcop->cop_warnings, x) || \ |
| 382 | isWARN_on(PL_curcop->cop_warnings, y) || \ |
| 383 | isWARN_on(PL_curcop->cop_warnings, z) || \ |
| 384 | isWARN_on(PL_curcop->cop_warnings, t) ) ) ) |
| 385 | |
| 386 | #define packWARN(a) (a ) |
| 387 | #define packWARN2(a,b) ((a) | (b)<<8 ) |
| 388 | #define packWARN3(a,b,c) ((a) | (b)<<8 | (c) <<16 ) |
| 389 | #define packWARN4(a,b,c,d) ((a) | (b)<<8 | (c) <<16 | (d) <<24) |
| 390 | |
| 391 | #define unpackWARN1(x) ((x) & 0xFF) |
| 392 | #define unpackWARN2(x) (((x) >>8) & 0xFF) |
| 393 | #define unpackWARN3(x) (((x) >>16) & 0xFF) |
| 394 | #define unpackWARN4(x) (((x) >>24) & 0xFF) |
| 395 | |
| 396 | #define ckDEAD(x) \ |
| 397 | ( ! specialWARN(PL_curcop->cop_warnings) && \ |
| 398 | ( isWARNf_on(PL_curcop->cop_warnings, WARN_ALL) || \ |
| 399 | isWARNf_on(PL_curcop->cop_warnings, unpackWARN1(x)) || \ |
| 400 | isWARNf_on(PL_curcop->cop_warnings, unpackWARN2(x)) || \ |
| 401 | isWARNf_on(PL_curcop->cop_warnings, unpackWARN3(x)) || \ |
| 402 | isWARNf_on(PL_curcop->cop_warnings, unpackWARN4(x)))) |
| 403 | |
| 4438c4b7 |
404 | /* end of file warnings.h */ |
| 599cee73 |
405 | |
| 406 | EOM |
| 407 | |
| 408 | close WARN ; |
| 409 | |
| 410 | while (<DATA>) { |
| 411 | last if /^KEYWORDS$/ ; |
| 412 | print PM $_ ; |
| 413 | } |
| 414 | |
| d3a7d8c7 |
415 | #$list{'all'} = [ $offset .. 8 * ($warn_size/2) - 1 ] ; |
| 416 | |
| 0d658bf5 |
417 | $last_ver = 0; |
| d3a7d8c7 |
418 | print PM "%Offsets = (\n" ; |
| 0d658bf5 |
419 | foreach my $k (sort { $a <=> $b } keys %ValueToName) { |
| 420 | my ($name, $version) = @{ $ValueToName{$k} }; |
| 421 | $name = lc $name; |
| d3a7d8c7 |
422 | $k *= 2 ; |
| 0d658bf5 |
423 | if ( $last_ver != $version ) { |
| 424 | print PM "\n"; |
| 425 | print PM tab(4, " # Warnings Categories added in Perl $version"); |
| 426 | print PM "\n\n"; |
| 427 | } |
| 428 | print PM tab(4, " '$name'"), "=> $k,\n" ; |
| 429 | $last_ver = $version; |
| d3a7d8c7 |
430 | } |
| 431 | |
| 432 | print PM " );\n\n" ; |
| 433 | |
| 599cee73 |
434 | print PM "%Bits = (\n" ; |
| 435 | foreach $k (sort keys %list) { |
| 436 | |
| 437 | my $v = $list{$k} ; |
| 438 | my @list = sort { $a <=> $b } @$v ; |
| 439 | |
| 0ca4541c |
440 | print PM tab(4, " '$k'"), '=> "', |
| 441 | # mkHex($warn_size, @list), |
| 442 | mkHex($warn_size, map $_ * 2 , @list), |
| 599cee73 |
443 | '", # [', mkRange(@list), "]\n" ; |
| 444 | } |
| 445 | |
| 446 | print PM " );\n\n" ; |
| 447 | |
| 448 | print PM "%DeadBits = (\n" ; |
| 449 | foreach $k (sort keys %list) { |
| 450 | |
| 451 | my $v = $list{$k} ; |
| 452 | my @list = sort { $a <=> $b } @$v ; |
| 453 | |
| 0ca4541c |
454 | print PM tab(4, " '$k'"), '=> "', |
| 455 | # mkHex($warn_size, @list), |
| 456 | mkHex($warn_size, map $_ * 2 + 1 , @list), |
| 599cee73 |
457 | '", # [', mkRange(@list), "]\n" ; |
| 458 | } |
| 459 | |
| 460 | print PM " );\n\n" ; |
| d3a7d8c7 |
461 | print PM '$NONE = "', ('\0' x $warn_size) , "\";\n" ; |
| 462 | print PM '$LAST_BIT = ' . "$index ;\n" ; |
| 463 | print PM '$BYTES = ' . "$warn_size ;\n" ; |
| 599cee73 |
464 | while (<DATA>) { |
| 465 | print PM $_ ; |
| 466 | } |
| 467 | |
| 468 | close PM ; |
| 469 | |
| 470 | __END__ |
| 471 | |
| 38875929 |
472 | # !!!!!!! DO NOT EDIT THIS FILE !!!!!!! |
| 4438c4b7 |
473 | # This file was created by warnings.pl |
| 599cee73 |
474 | # Any changes made here will be lost. |
| 475 | # |
| 476 | |
| 4438c4b7 |
477 | package warnings; |
| 599cee73 |
478 | |
| b75c8c73 |
479 | our $VERSION = '1.00'; |
| 480 | |
| 599cee73 |
481 | =head1 NAME |
| 482 | |
| 4438c4b7 |
483 | warnings - Perl pragma to control optional warnings |
| 599cee73 |
484 | |
| 485 | =head1 SYNOPSIS |
| 486 | |
| 4438c4b7 |
487 | use warnings; |
| 488 | no warnings; |
| 599cee73 |
489 | |
| 4438c4b7 |
490 | use warnings "all"; |
| 491 | no warnings "all"; |
| 599cee73 |
492 | |
| d3a7d8c7 |
493 | use warnings::register; |
| 494 | if (warnings::enabled()) { |
| 495 | warnings::warn("some warning"); |
| 496 | } |
| 497 | |
| 498 | if (warnings::enabled("void")) { |
| e476b1b5 |
499 | warnings::warn("void", "some warning"); |
| 500 | } |
| 501 | |
| 7e6d00f8 |
502 | if (warnings::enabled($object)) { |
| 503 | warnings::warn($object, "some warning"); |
| 504 | } |
| 505 | |
| 721f911b |
506 | warnings::warnif("some warning"); |
| 507 | warnings::warnif("void", "some warning"); |
| 508 | warnings::warnif($object, "some warning"); |
| 7e6d00f8 |
509 | |
| 599cee73 |
510 | =head1 DESCRIPTION |
| 511 | |
| 0453d815 |
512 | If no import list is supplied, all possible warnings are either enabled |
| 513 | or disabled. |
| 599cee73 |
514 | |
| 0ca4541c |
515 | A number of functions are provided to assist module authors. |
| e476b1b5 |
516 | |
| 517 | =over 4 |
| 518 | |
| d3a7d8c7 |
519 | =item use warnings::register |
| 520 | |
| 7e6d00f8 |
521 | Creates a new warnings category with the same name as the package where |
| 522 | the call to the pragma is used. |
| 523 | |
| 524 | =item warnings::enabled() |
| 525 | |
| 526 | Use the warnings category with the same name as the current package. |
| 527 | |
| 528 | Return TRUE if that warnings category is enabled in the calling module. |
| 529 | Otherwise returns FALSE. |
| 530 | |
| 531 | =item warnings::enabled($category) |
| 532 | |
| 533 | Return TRUE if the warnings category, C<$category>, is enabled in the |
| 534 | calling module. |
| 535 | Otherwise returns FALSE. |
| 536 | |
| 537 | =item warnings::enabled($object) |
| 538 | |
| 539 | Use the name of the class for the object reference, C<$object>, as the |
| 540 | warnings category. |
| 541 | |
| 542 | Return TRUE if that warnings category is enabled in the first scope |
| 543 | where the object is used. |
| 544 | Otherwise returns FALSE. |
| 545 | |
| 546 | =item warnings::warn($message) |
| 547 | |
| 548 | Print C<$message> to STDERR. |
| 549 | |
| 550 | Use the warnings category with the same name as the current package. |
| 551 | |
| 552 | If that warnings category has been set to "FATAL" in the calling module |
| 553 | then die. Otherwise return. |
| 554 | |
| 555 | =item warnings::warn($category, $message) |
| 556 | |
| 557 | Print C<$message> to STDERR. |
| 558 | |
| 559 | If the warnings category, C<$category>, has been set to "FATAL" in the |
| 560 | calling module then die. Otherwise return. |
| d3a7d8c7 |
561 | |
| 7e6d00f8 |
562 | =item warnings::warn($object, $message) |
| e476b1b5 |
563 | |
| 7e6d00f8 |
564 | Print C<$message> to STDERR. |
| e476b1b5 |
565 | |
| 7e6d00f8 |
566 | Use the name of the class for the object reference, C<$object>, as the |
| 567 | warnings category. |
| e476b1b5 |
568 | |
| 7e6d00f8 |
569 | If that warnings category has been set to "FATAL" in the scope where C<$object> |
| 570 | is first used then die. Otherwise return. |
| 599cee73 |
571 | |
| e476b1b5 |
572 | |
| 7e6d00f8 |
573 | =item warnings::warnif($message) |
| 574 | |
| 575 | Equivalent to: |
| 576 | |
| 577 | if (warnings::enabled()) |
| 578 | { warnings::warn($message) } |
| 579 | |
| 580 | =item warnings::warnif($category, $message) |
| 581 | |
| 582 | Equivalent to: |
| 583 | |
| 584 | if (warnings::enabled($category)) |
| 585 | { warnings::warn($category, $message) } |
| 586 | |
| 587 | =item warnings::warnif($object, $message) |
| 588 | |
| 589 | Equivalent to: |
| 590 | |
| 591 | if (warnings::enabled($object)) |
| 592 | { warnings::warn($object, $message) } |
| d3a7d8c7 |
593 | |
| e476b1b5 |
594 | =back |
| 595 | |
| 749f83fa |
596 | See L<perlmodlib/Pragmatic Modules> and L<perllexwarn>. |
| 599cee73 |
597 | |
| 598 | =cut |
| 599 | |
| 600 | use Carp ; |
| 601 | |
| 602 | KEYWORDS |
| 603 | |
| d3a7d8c7 |
604 | $All = "" ; vec($All, $Offsets{'all'}, 2) = 3 ; |
| 605 | |
| c3186b65 |
606 | sub Croaker |
| 607 | { |
| 608 | delete $Carp::CarpInternal{'warnings'}; |
| f5e3445d |
609 | croak(@_); |
| c3186b65 |
610 | } |
| 611 | |
| 6e9af7e4 |
612 | sub bits |
| 613 | { |
| 614 | # called from B::Deparse.pm |
| 615 | |
| 616 | push @_, 'all' unless @_; |
| 617 | |
| 618 | my $mask; |
| 599cee73 |
619 | my $catmask ; |
| 620 | my $fatal = 0 ; |
| 6e9af7e4 |
621 | my $no_fatal = 0 ; |
| 622 | |
| 623 | foreach my $word ( @_ ) { |
| 624 | if ($word eq 'FATAL') { |
| 327afb7f |
625 | $fatal = 1; |
| 6e9af7e4 |
626 | $no_fatal = 0; |
| 627 | } |
| 628 | elsif ($word eq 'NONFATAL') { |
| 629 | $fatal = 0; |
| 630 | $no_fatal = 1; |
| 327afb7f |
631 | } |
| d3a7d8c7 |
632 | elsif ($catmask = $Bits{$word}) { |
| 633 | $mask |= $catmask ; |
| 634 | $mask |= $DeadBits{$word} if $fatal ; |
| 6e9af7e4 |
635 | $mask &= ~($DeadBits{$word}|$All) if $no_fatal ; |
| 599cee73 |
636 | } |
| d3a7d8c7 |
637 | else |
| c3186b65 |
638 | { Croaker("Unknown warnings category '$word'")} |
| 599cee73 |
639 | } |
| 640 | |
| 641 | return $mask ; |
| 642 | } |
| 643 | |
| 6e9af7e4 |
644 | sub import |
| 645 | { |
| 599cee73 |
646 | shift; |
| 6e9af7e4 |
647 | |
| 648 | my $catmask ; |
| 649 | my $fatal = 0 ; |
| 650 | my $no_fatal = 0 ; |
| 651 | |
| f1f33818 |
652 | my $mask = ${^WARNING_BITS} ; |
| 6e9af7e4 |
653 | |
| f1f33818 |
654 | if (vec($mask, $Offsets{'all'}, 1)) { |
| 655 | $mask |= $Bits{'all'} ; |
| 656 | $mask |= $DeadBits{'all'} if vec($mask, $Offsets{'all'}+1, 1); |
| 657 | } |
| 6e9af7e4 |
658 | |
| 659 | push @_, 'all' unless @_; |
| 660 | |
| 661 | foreach my $word ( @_ ) { |
| 662 | if ($word eq 'FATAL') { |
| 663 | $fatal = 1; |
| 664 | $no_fatal = 0; |
| 665 | } |
| 666 | elsif ($word eq 'NONFATAL') { |
| 667 | $fatal = 0; |
| 668 | $no_fatal = 1; |
| 669 | } |
| 670 | elsif ($catmask = $Bits{$word}) { |
| 671 | $mask |= $catmask ; |
| 672 | $mask |= $DeadBits{$word} if $fatal ; |
| 673 | $mask &= ~($DeadBits{$word}|$All) if $no_fatal ; |
| 674 | } |
| 675 | else |
| 676 | { Croaker("Unknown warnings category '$word'")} |
| 677 | } |
| 678 | |
| 679 | ${^WARNING_BITS} = $mask ; |
| 599cee73 |
680 | } |
| 681 | |
| 6e9af7e4 |
682 | sub unimport |
| 683 | { |
| 599cee73 |
684 | shift; |
| 6e9af7e4 |
685 | |
| 686 | my $catmask ; |
| d3a7d8c7 |
687 | my $mask = ${^WARNING_BITS} ; |
| 6e9af7e4 |
688 | |
| d3a7d8c7 |
689 | if (vec($mask, $Offsets{'all'}, 1)) { |
| f1f33818 |
690 | $mask |= $Bits{'all'} ; |
| d3a7d8c7 |
691 | $mask |= $DeadBits{'all'} if vec($mask, $Offsets{'all'}+1, 1); |
| 692 | } |
| 6e9af7e4 |
693 | |
| 694 | push @_, 'all' unless @_; |
| 695 | |
| 696 | foreach my $word ( @_ ) { |
| 697 | if ($word eq 'FATAL') { |
| 698 | next; |
| 699 | } |
| 700 | elsif ($catmask = $Bits{$word}) { |
| 701 | $mask &= ~($catmask | $DeadBits{$word} | $All); |
| 702 | } |
| 703 | else |
| 704 | { Croaker("Unknown warnings category '$word'")} |
| 705 | } |
| 706 | |
| 707 | ${^WARNING_BITS} = $mask ; |
| 599cee73 |
708 | } |
| 709 | |
| 7e6d00f8 |
710 | sub __chk |
| 599cee73 |
711 | { |
| d3a7d8c7 |
712 | my $category ; |
| 713 | my $offset ; |
| 7e6d00f8 |
714 | my $isobj = 0 ; |
| d3a7d8c7 |
715 | |
| 716 | if (@_) { |
| 717 | # check the category supplied. |
| 718 | $category = shift ; |
| 7e6d00f8 |
719 | if (ref $category) { |
| c3186b65 |
720 | Croaker ("not an object") |
| 3d1a39c8 |
721 | if $category !~ /^([^=]+)=/ ; |
| 7e6d00f8 |
722 | $category = $1 ; |
| 723 | $isobj = 1 ; |
| 724 | } |
| d3a7d8c7 |
725 | $offset = $Offsets{$category}; |
| c3186b65 |
726 | Croaker("Unknown warnings category '$category'") |
| d3a7d8c7 |
727 | unless defined $offset; |
| 728 | } |
| 729 | else { |
| 0ca4541c |
730 | $category = (caller(1))[0] ; |
| d3a7d8c7 |
731 | $offset = $Offsets{$category}; |
| c3186b65 |
732 | Croaker("package '$category' not registered for warnings") |
| d3a7d8c7 |
733 | unless defined $offset ; |
| 734 | } |
| 735 | |
| 0ca4541c |
736 | my $this_pkg = (caller(1))[0] ; |
| 7e6d00f8 |
737 | my $i = 2 ; |
| 738 | my $pkg ; |
| 739 | |
| 740 | if ($isobj) { |
| 741 | while (do { { package DB; $pkg = (caller($i++))[0] } } ) { |
| 742 | last unless @DB::args && $DB::args[0] =~ /^$category=/ ; |
| 743 | } |
| 744 | $i -= 2 ; |
| 745 | } |
| 746 | else { |
| 747 | for ($i = 2 ; $pkg = (caller($i))[0] ; ++ $i) { |
| 748 | last if $pkg ne $this_pkg ; |
| 749 | } |
| 0ca4541c |
750 | $i = 2 |
| 7e6d00f8 |
751 | if !$pkg || $pkg eq $this_pkg ; |
| 752 | } |
| 753 | |
| 0ca4541c |
754 | my $callers_bitmask = (caller($i))[9] ; |
| 7e6d00f8 |
755 | return ($callers_bitmask, $offset, $i) ; |
| 756 | } |
| 757 | |
| 758 | sub enabled |
| 759 | { |
| c3186b65 |
760 | Croaker("Usage: warnings::enabled([category])") |
| 7e6d00f8 |
761 | unless @_ == 1 || @_ == 0 ; |
| 762 | |
| 763 | my ($callers_bitmask, $offset, $i) = __chk(@_) ; |
| 764 | |
| 765 | return 0 unless defined $callers_bitmask ; |
| d3a7d8c7 |
766 | return vec($callers_bitmask, $offset, 1) || |
| 767 | vec($callers_bitmask, $Offsets{'all'}, 1) ; |
| 599cee73 |
768 | } |
| 769 | |
| d3a7d8c7 |
770 | |
| e476b1b5 |
771 | sub warn |
| 772 | { |
| c3186b65 |
773 | Croaker("Usage: warnings::warn([category,] 'message')") |
| d3a7d8c7 |
774 | unless @_ == 2 || @_ == 1 ; |
| d3a7d8c7 |
775 | |
| 7e6d00f8 |
776 | my $message = pop ; |
| 777 | my ($callers_bitmask, $offset, $i) = __chk(@_) ; |
| 0ca4541c |
778 | croak($message) |
| d3a7d8c7 |
779 | if vec($callers_bitmask, $offset+1, 1) || |
| 780 | vec($callers_bitmask, $Offsets{'all'}+1, 1) ; |
| e476b1b5 |
781 | carp($message) ; |
| 782 | } |
| 783 | |
| 7e6d00f8 |
784 | sub warnif |
| 785 | { |
| c3186b65 |
786 | Croaker("Usage: warnings::warnif([category,] 'message')") |
| 7e6d00f8 |
787 | unless @_ == 2 || @_ == 1 ; |
| 788 | |
| 789 | my $message = pop ; |
| 790 | my ($callers_bitmask, $offset, $i) = __chk(@_) ; |
| 7e6d00f8 |
791 | |
| 0ca4541c |
792 | return |
| 7e6d00f8 |
793 | unless defined $callers_bitmask && |
| 794 | (vec($callers_bitmask, $offset, 1) || |
| 795 | vec($callers_bitmask, $Offsets{'all'}, 1)) ; |
| 796 | |
| 0ca4541c |
797 | croak($message) |
| 7e6d00f8 |
798 | if vec($callers_bitmask, $offset+1, 1) || |
| 799 | vec($callers_bitmask, $Offsets{'all'}+1, 1) ; |
| 800 | |
| 801 | carp($message) ; |
| 802 | } |
| 0d658bf5 |
803 | |
| 599cee73 |
804 | 1; |
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