Commit | Line | Data |
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599cee73 PM |
1 | #!/usr/bin/perl |
2 | ||
73f0cc2d GS |
3 | BEGIN { |
4 | push @INC, './lib'; | |
5 | } | |
599cee73 PM |
6 | use strict ; |
7 | ||
8 | sub DEFAULT_ON () { 1 } | |
9 | sub DEFAULT_OFF () { 2 } | |
10 | ||
11 | my $tree = { | |
12 | 'unsafe' => { 'untie' => DEFAULT_OFF, | |
13 | 'substr' => DEFAULT_OFF, | |
14 | 'taint' => DEFAULT_OFF, | |
15 | 'signal' => DEFAULT_OFF, | |
16 | 'closure' => DEFAULT_OFF, | |
627300f0 JH |
17 | 'overflow' => DEFAULT_OFF, |
18 | 'portable' => DEFAULT_OFF, | |
599cee73 PM |
19 | 'utf8' => DEFAULT_OFF, |
20 | } , | |
21 | 'io' => { 'pipe' => DEFAULT_OFF, | |
22 | 'unopened' => DEFAULT_OFF, | |
23 | 'closed' => DEFAULT_OFF, | |
24 | 'newline' => DEFAULT_OFF, | |
25 | 'exec' => DEFAULT_OFF, | |
26 | #'wr in in file'=> DEFAULT_OFF, | |
27 | }, | |
28 | 'syntax' => { 'ambiguous' => DEFAULT_OFF, | |
29 | 'semicolon' => DEFAULT_OFF, | |
30 | 'precedence' => DEFAULT_OFF, | |
31 | 'reserved' => DEFAULT_OFF, | |
32 | 'octal' => DEFAULT_OFF, | |
627300f0 | 33 | 'digit' => DEFAULT_OFF, |
599cee73 PM |
34 | 'parenthesis' => DEFAULT_OFF, |
35 | 'deprecated' => DEFAULT_OFF, | |
36 | 'printf' => DEFAULT_OFF, | |
37 | }, | |
0453d815 PM |
38 | 'severe' => { 'inplace' => DEFAULT_ON, |
39 | 'internal' => DEFAULT_ON, | |
40 | 'debugging' => DEFAULT_ON, | |
41 | }, | |
599cee73 PM |
42 | 'void' => DEFAULT_OFF, |
43 | 'recursion' => DEFAULT_OFF, | |
44 | 'redefine' => DEFAULT_OFF, | |
45 | 'numeric' => DEFAULT_OFF, | |
46 | 'uninitialized'=> DEFAULT_OFF, | |
47 | 'once' => DEFAULT_OFF, | |
48 | 'misc' => DEFAULT_OFF, | |
0453d815 | 49 | #'default' => DEFAULT_ON, |
599cee73 PM |
50 | } ; |
51 | ||
52 | ||
53 | ########################################################################### | |
54 | sub tab { | |
55 | my($l, $t) = @_; | |
56 | $t .= "\t" x ($l - (length($t) + 1) / 8); | |
57 | $t; | |
58 | } | |
59 | ||
60 | ########################################################################### | |
61 | ||
62 | my %list ; | |
63 | my %Value ; | |
64 | my $index = 0 ; | |
65 | ||
66 | sub walk | |
67 | { | |
68 | my $tre = shift ; | |
69 | my @list = () ; | |
70 | my ($k, $v) ; | |
71 | ||
95dfd3ab GS |
72 | foreach $k (sort keys %$tre) { |
73 | $v = $tre->{$k}; | |
599cee73 PM |
74 | die "duplicate key $k\n" if defined $list{$k} ; |
75 | $Value{$index} = uc $k ; | |
76 | push @{ $list{$k} }, $index ++ ; | |
77 | if (ref $v) | |
78 | { push (@{ $list{$k} }, walk ($v)) } | |
79 | push @list, @{ $list{$k} } ; | |
80 | } | |
81 | ||
82 | return @list ; | |
599cee73 PM |
83 | } |
84 | ||
85 | ########################################################################### | |
86 | ||
87 | sub mkRange | |
88 | { | |
89 | my @a = @_ ; | |
90 | my @out = @a ; | |
91 | my $i ; | |
92 | ||
93 | ||
94 | for ($i = 1 ; $i < @a; ++ $i) { | |
95 | $out[$i] = ".." | |
96 | if $a[$i] == $a[$i - 1] + 1 && $a[$i] + 1 == $a[$i + 1] ; | |
97 | } | |
98 | ||
99 | my $out = join(",",@out); | |
100 | ||
101 | $out =~ s/,(\.\.,)+/../g ; | |
102 | return $out; | |
103 | } | |
104 | ||
105 | ########################################################################### | |
106 | ||
107 | sub mkHex | |
108 | { | |
109 | my ($max, @a) = @_ ; | |
110 | my $mask = "\x00" x $max ; | |
111 | my $string = "" ; | |
112 | ||
113 | foreach (@a) { | |
114 | vec($mask, $_, 1) = 1 ; | |
115 | } | |
116 | ||
117 | #$string = unpack("H$max", $mask) ; | |
118 | #$string =~ s/(..)/\x$1/g; | |
119 | foreach (unpack("C*", $mask)) { | |
120 | $string .= '\x' . sprintf("%2.2x", $_) ; | |
121 | } | |
122 | return $string ; | |
123 | } | |
124 | ||
125 | ########################################################################### | |
126 | ||
127 | ||
4438c4b7 JH |
128 | #unlink "warnings.h"; |
129 | #unlink "lib/warnings.pm"; | |
130 | open(WARN, ">warnings.h") || die "Can't create warnings.h: $!\n"; | |
131 | open(PM, ">lib/warnings.pm") || die "Can't create lib/warnings.pm: $!\n"; | |
599cee73 PM |
132 | |
133 | print WARN <<'EOM' ; | |
134 | /* !!!!!!! DO NOT EDIT THIS FILE !!!!!!! | |
4438c4b7 | 135 | This file is built by warnings.pl |
599cee73 PM |
136 | Any changes made here will be lost! |
137 | */ | |
138 | ||
139 | ||
0453d815 PM |
140 | #define Off(x) ((x) / 8) |
141 | #define Bit(x) (1 << ((x) % 8)) | |
599cee73 PM |
142 | #define IsSet(a, x) ((a)[Off(x)] & Bit(x)) |
143 | ||
0453d815 | 144 | |
599cee73 | 145 | #define G_WARN_OFF 0 /* $^W == 0 */ |
0453d815 | 146 | #define G_WARN_ON 1 /* -w flag and $^W != 0 */ |
599cee73 PM |
147 | #define G_WARN_ALL_ON 2 /* -W flag */ |
148 | #define G_WARN_ALL_OFF 4 /* -X flag */ | |
0453d815 | 149 | #define G_WARN_ONCE 8 /* set if 'once' ever enabled */ |
599cee73 PM |
150 | #define G_WARN_ALL_MASK (G_WARN_ALL_ON|G_WARN_ALL_OFF) |
151 | ||
0453d815 | 152 | #define WARN_STD Nullsv |
4438c4b7 JH |
153 | #define WARN_ALL (&PL_sv_yes) /* use warnings 'all' */ |
154 | #define WARN_NONE (&PL_sv_no) /* no warnings 'all' */ | |
599cee73 | 155 | |
0453d815 PM |
156 | #define specialWARN(x) ((x) == WARN_STD || (x) == WARN_ALL || \ |
157 | (x) == WARN_NONE) | |
599cee73 PM |
158 | |
159 | #define ckDEAD(x) \ | |
0453d815 | 160 | ( ! specialWARN(PL_curcop->cop_warnings) && \ |
e24b16f9 | 161 | IsSet(SvPVX(PL_curcop->cop_warnings), 2*x+1)) |
599cee73 PM |
162 | |
163 | #define ckWARN(x) \ | |
0453d815 PM |
164 | ( (PL_curcop->cop_warnings != WARN_STD && \ |
165 | PL_curcop->cop_warnings != WARN_NONE && \ | |
e24b16f9 GS |
166 | (PL_curcop->cop_warnings == WARN_ALL || \ |
167 | IsSet(SvPVX(PL_curcop->cop_warnings), 2*x) ) ) \ | |
0453d815 | 168 | || (PL_curcop->cop_warnings == WARN_STD && PL_dowarn & G_WARN_ON) ) |
599cee73 PM |
169 | |
170 | #define ckWARN2(x,y) \ | |
0453d815 PM |
171 | ( (PL_curcop->cop_warnings != WARN_STD && \ |
172 | PL_curcop->cop_warnings != WARN_NONE && \ | |
e24b16f9 GS |
173 | (PL_curcop->cop_warnings == WARN_ALL || \ |
174 | IsSet(SvPVX(PL_curcop->cop_warnings), 2*x) || \ | |
175 | IsSet(SvPVX(PL_curcop->cop_warnings), 2*y) ) ) \ | |
0453d815 | 176 | || (PL_curcop->cop_warnings == WARN_STD && PL_dowarn & G_WARN_ON) ) |
599cee73 | 177 | |
0453d815 PM |
178 | #define ckWARN_d(x) \ |
179 | (PL_curcop->cop_warnings == WARN_STD || \ | |
180 | PL_curcop->cop_warnings == WARN_ALL || \ | |
181 | (PL_curcop->cop_warnings != WARN_NONE && \ | |
182 | IsSet(SvPVX(PL_curcop->cop_warnings), 2*x) ) ) | |
599cee73 | 183 | |
0453d815 PM |
184 | #define ckWARN2_d(x,y) \ |
185 | (PL_curcop->cop_warnings == WARN_STD || \ | |
186 | PL_curcop->cop_warnings == WARN_ALL || \ | |
187 | (PL_curcop->cop_warnings != WARN_NONE && \ | |
188 | (IsSet(SvPVX(PL_curcop->cop_warnings), 2*x) || \ | |
189 | IsSet(SvPVX(PL_curcop->cop_warnings), 2*y) ) ) ) | |
599cee73 | 190 | |
599cee73 | 191 | |
0453d815 PM |
192 | #define isLEXWARN_on (PL_curcop->cop_warnings != WARN_STD) |
193 | #define isLEXWARN_off (PL_curcop->cop_warnings == WARN_STD) | |
194 | #define isWARN_ONCE (PL_dowarn & (G_WARN_ON|G_WARN_ONCE)) | |
195 | #define isWARN_on(c,x) (IsSet(SvPVX(c), 2*(x))) | |
599cee73 PM |
196 | |
197 | EOM | |
198 | ||
199 | ||
200 | $index = 0 ; | |
201 | @{ $list{"all"} } = walk ($tree) ; | |
202 | ||
203 | $index *= 2 ; | |
204 | my $warn_size = int($index / 8) + ($index % 8 != 0) ; | |
205 | ||
206 | my $k ; | |
207 | foreach $k (sort { $a <=> $b } keys %Value) { | |
208 | print WARN tab(5, "#define WARN_$Value{$k}"), "$k\n" ; | |
209 | } | |
210 | print WARN "\n" ; | |
211 | ||
212 | print WARN tab(5, '#define WARNsize'), "$warn_size\n" ; | |
213 | #print WARN tab(5, '#define WARN_ALLstring'), '"', ('\377' x $warn_size) , "\"\n" ; | |
214 | print WARN tab(5, '#define WARN_ALLstring'), '"', ('\125' x $warn_size) , "\"\n" ; | |
215 | print WARN tab(5, '#define WARN_NONEstring'), '"', ('\0' x $warn_size) , "\"\n" ; | |
216 | ||
217 | print WARN <<'EOM'; | |
218 | ||
4438c4b7 | 219 | /* end of file warnings.h */ |
599cee73 PM |
220 | |
221 | EOM | |
222 | ||
223 | close WARN ; | |
224 | ||
225 | while (<DATA>) { | |
226 | last if /^KEYWORDS$/ ; | |
227 | print PM $_ ; | |
228 | } | |
229 | ||
230 | $list{'all'} = [ 0 .. 8 * ($warn_size/2) - 1 ] ; | |
231 | print PM "%Bits = (\n" ; | |
232 | foreach $k (sort keys %list) { | |
233 | ||
234 | my $v = $list{$k} ; | |
235 | my @list = sort { $a <=> $b } @$v ; | |
236 | ||
237 | print PM tab(4, " '$k'"), '=> "', | |
238 | # mkHex($warn_size, @list), | |
239 | mkHex($warn_size, map $_ * 2 , @list), | |
240 | '", # [', mkRange(@list), "]\n" ; | |
241 | } | |
242 | ||
243 | print PM " );\n\n" ; | |
244 | ||
245 | print PM "%DeadBits = (\n" ; | |
246 | foreach $k (sort keys %list) { | |
247 | ||
248 | my $v = $list{$k} ; | |
249 | my @list = sort { $a <=> $b } @$v ; | |
250 | ||
251 | print PM tab(4, " '$k'"), '=> "', | |
252 | # mkHex($warn_size, @list), | |
253 | mkHex($warn_size, map $_ * 2 + 1 , @list), | |
254 | '", # [', mkRange(@list), "]\n" ; | |
255 | } | |
256 | ||
257 | print PM " );\n\n" ; | |
258 | while (<DATA>) { | |
259 | print PM $_ ; | |
260 | } | |
261 | ||
262 | close PM ; | |
263 | ||
264 | __END__ | |
265 | ||
4438c4b7 | 266 | # This file was created by warnings.pl |
599cee73 PM |
267 | # Any changes made here will be lost. |
268 | # | |
269 | ||
4438c4b7 | 270 | package warnings; |
599cee73 PM |
271 | |
272 | =head1 NAME | |
273 | ||
4438c4b7 | 274 | warnings - Perl pragma to control optional warnings |
599cee73 PM |
275 | |
276 | =head1 SYNOPSIS | |
277 | ||
4438c4b7 JH |
278 | use warnings; |
279 | no warnings; | |
599cee73 | 280 | |
4438c4b7 JH |
281 | use warnings "all"; |
282 | no warnings "all"; | |
599cee73 PM |
283 | |
284 | =head1 DESCRIPTION | |
285 | ||
0453d815 PM |
286 | If no import list is supplied, all possible warnings are either enabled |
287 | or disabled. | |
599cee73 | 288 | |
0453d815 | 289 | See L<perlmod/Pragmatic Modules> and L<perllexwarn>. |
599cee73 PM |
290 | |
291 | ||
292 | =cut | |
293 | ||
294 | use Carp ; | |
295 | ||
296 | KEYWORDS | |
297 | ||
298 | sub bits { | |
299 | my $mask ; | |
300 | my $catmask ; | |
301 | my $fatal = 0 ; | |
302 | foreach my $word (@_) { | |
303 | if ($word eq 'FATAL') | |
304 | { $fatal = 1 } | |
305 | elsif ($catmask = $Bits{$word}) { | |
306 | $mask |= $catmask ; | |
307 | $mask |= $DeadBits{$word} if $fatal ; | |
308 | } | |
309 | else | |
310 | { croak "unknown warning category '$word'" } | |
311 | } | |
312 | ||
313 | return $mask ; | |
314 | } | |
315 | ||
316 | sub import { | |
317 | shift; | |
4438c4b7 | 318 | ${^Warnings} |= bits(@_ ? @_ : 'all') ; |
599cee73 PM |
319 | } |
320 | ||
321 | sub unimport { | |
322 | shift; | |
4438c4b7 | 323 | ${^Warnings} &= ~ bits(@_ ? @_ : 'all') ; |
599cee73 PM |
324 | } |
325 | ||
326 | sub enabled | |
327 | { | |
328 | my $string = shift ; | |
329 | ||
330 | return 1 | |
4438c4b7 | 331 | if $bits{$string} && ${^Warnings} & $bits{$string} ; |
599cee73 PM |
332 | |
333 | return 0 ; | |
334 | } | |
335 | ||
336 | 1; |