Filename | /home/s1/perl5/perlbrew/perls/perl-5.22.0/lib/5.22.0/feature.pm |
Statements | Executed 86 statements in 119µs |
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1 | 1 | 1 | 66µs | 66µs | __common | feature::
1 | 1 | 1 | 17µs | 83µs | import | feature::
0 | 0 | 0 | 0s | 0s | croak | feature::
0 | 0 | 0 | 0s | 0s | unimport | feature::
0 | 0 | 0 | 0s | 0s | unknown_feature | feature::
0 | 0 | 0 | 0s | 0s | unknown_feature_bundle | feature::
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1 | # -*- buffer-read-only: t -*- | ||||
2 | # !!!!!!! DO NOT EDIT THIS FILE !!!!!!! | ||||
3 | # This file is built by regen/feature.pl. | ||||
4 | # Any changes made here will be lost! | ||||
5 | |||||
6 | package feature; | ||||
7 | |||||
8 | 1 | 700ns | our $VERSION = '1.40'; | ||
9 | |||||
10 | 1 | 8µs | our %feature = ( | ||
11 | fc => 'feature_fc', | ||||
12 | say => 'feature_say', | ||||
13 | state => 'feature_state', | ||||
14 | switch => 'feature_switch', | ||||
15 | bitwise => 'feature_bitwise', | ||||
16 | evalbytes => 'feature_evalbytes', | ||||
17 | postderef => 'feature_postderef', | ||||
18 | array_base => 'feature_arybase', | ||||
19 | signatures => 'feature_signatures', | ||||
20 | current_sub => 'feature___SUB__', | ||||
21 | refaliasing => 'feature_refaliasing', | ||||
22 | lexical_subs => 'feature_lexsubs', | ||||
23 | postderef_qq => 'feature_postderef_qq', | ||||
24 | unicode_eval => 'feature_unieval', | ||||
25 | unicode_strings => 'feature_unicode', | ||||
26 | ); | ||||
27 | |||||
28 | 1 | 6µs | our %feature_bundle = ( | ||
29 | "5.10" => [qw(array_base say state switch)], | ||||
30 | "5.11" => [qw(array_base say state switch unicode_strings)], | ||||
31 | "5.15" => [qw(current_sub evalbytes fc say state switch unicode_eval unicode_strings)], | ||||
32 | "all" => [qw(array_base bitwise current_sub evalbytes fc lexical_subs postderef postderef_qq refaliasing say signatures state switch unicode_eval unicode_strings)], | ||||
33 | "default" => [qw(array_base)], | ||||
34 | ); | ||||
35 | |||||
36 | 1 | 1µs | $feature_bundle{"5.12"} = $feature_bundle{"5.11"}; | ||
37 | 1 | 200ns | $feature_bundle{"5.13"} = $feature_bundle{"5.11"}; | ||
38 | 1 | 600ns | $feature_bundle{"5.14"} = $feature_bundle{"5.11"}; | ||
39 | 1 | 200ns | $feature_bundle{"5.16"} = $feature_bundle{"5.15"}; | ||
40 | 1 | 200ns | $feature_bundle{"5.17"} = $feature_bundle{"5.15"}; | ||
41 | 1 | 200ns | $feature_bundle{"5.18"} = $feature_bundle{"5.15"}; | ||
42 | 1 | 200ns | $feature_bundle{"5.19"} = $feature_bundle{"5.15"}; | ||
43 | 1 | 200ns | $feature_bundle{"5.20"} = $feature_bundle{"5.15"}; | ||
44 | 1 | 200ns | $feature_bundle{"5.21"} = $feature_bundle{"5.15"}; | ||
45 | 1 | 300ns | $feature_bundle{"5.22"} = $feature_bundle{"5.15"}; | ||
46 | 1 | 700ns | $feature_bundle{"5.9.5"} = $feature_bundle{"5.10"}; | ||
47 | |||||
48 | 1 | 300ns | our $hint_shift = 26; | ||
49 | 1 | 200ns | our $hint_mask = 0x1c000000; | ||
50 | 1 | 1µs | our @hint_bundles = qw( default 5.10 5.11 5.15 ); | ||
51 | |||||
52 | # This gets set (for now) in $^H as well as in %^H, | ||||
53 | # for runtime speed of the uc/lc/ucfirst/lcfirst functions. | ||||
54 | # See HINT_UNI_8_BIT in perl.h. | ||||
55 | 1 | 200ns | our $hint_uni8bit = 0x00000800; | ||
56 | |||||
57 | # TODO: | ||||
58 | # - think about versioned features (use feature switch => 2) | ||||
59 | |||||
60 | =head1 NAME | ||||
61 | |||||
62 | feature - Perl pragma to enable new features | ||||
63 | |||||
64 | =head1 SYNOPSIS | ||||
65 | |||||
66 | use feature qw(say switch); | ||||
67 | given ($foo) { | ||||
68 | when (1) { say "\$foo == 1" } | ||||
69 | when ([2,3]) { say "\$foo == 2 || \$foo == 3" } | ||||
70 | when (/^a[bc]d$/) { say "\$foo eq 'abd' || \$foo eq 'acd'" } | ||||
71 | when ($_ > 100) { say "\$foo > 100" } | ||||
72 | default { say "None of the above" } | ||||
73 | } | ||||
74 | |||||
75 | use feature ':5.10'; # loads all features available in perl 5.10 | ||||
76 | |||||
77 | use v5.10; # implicitly loads :5.10 feature bundle | ||||
78 | |||||
79 | =head1 DESCRIPTION | ||||
80 | |||||
81 | It is usually impossible to add new syntax to Perl without breaking | ||||
82 | some existing programs. This pragma provides a way to minimize that | ||||
83 | risk. New syntactic constructs, or new semantic meanings to older | ||||
84 | constructs, can be enabled by C<use feature 'foo'>, and will be parsed | ||||
85 | only when the appropriate feature pragma is in scope. (Nevertheless, the | ||||
86 | C<CORE::> prefix provides access to all Perl keywords, regardless of this | ||||
87 | pragma.) | ||||
88 | |||||
89 | =head2 Lexical effect | ||||
90 | |||||
91 | Like other pragmas (C<use strict>, for example), features have a lexical | ||||
92 | effect. C<use feature qw(foo)> will only make the feature "foo" available | ||||
93 | from that point to the end of the enclosing block. | ||||
94 | |||||
95 | { | ||||
96 | use feature 'say'; | ||||
97 | say "say is available here"; | ||||
98 | } | ||||
99 | print "But not here.\n"; | ||||
100 | |||||
101 | =head2 C<no feature> | ||||
102 | |||||
103 | Features can also be turned off by using C<no feature "foo">. This too | ||||
104 | has lexical effect. | ||||
105 | |||||
106 | use feature 'say'; | ||||
107 | say "say is available here"; | ||||
108 | { | ||||
109 | no feature 'say'; | ||||
110 | print "But not here.\n"; | ||||
111 | } | ||||
112 | say "Yet it is here."; | ||||
113 | |||||
114 | C<no feature> with no features specified will reset to the default group. To | ||||
115 | disable I<all> features (an unusual request!) use C<no feature ':all'>. | ||||
116 | |||||
117 | =head1 AVAILABLE FEATURES | ||||
118 | |||||
119 | =head2 The 'say' feature | ||||
120 | |||||
121 | C<use feature 'say'> tells the compiler to enable the Perl 6 style | ||||
122 | C<say> function. | ||||
123 | |||||
124 | See L<perlfunc/say> for details. | ||||
125 | |||||
126 | This feature is available starting with Perl 5.10. | ||||
127 | |||||
128 | =head2 The 'state' feature | ||||
129 | |||||
130 | C<use feature 'state'> tells the compiler to enable C<state> | ||||
131 | variables. | ||||
132 | |||||
133 | See L<perlsub/"Persistent Private Variables"> for details. | ||||
134 | |||||
135 | This feature is available starting with Perl 5.10. | ||||
136 | |||||
137 | =head2 The 'switch' feature | ||||
138 | |||||
139 | B<WARNING>: Because the L<smartmatch operator|perlop/"Smartmatch Operator"> is | ||||
140 | experimental, Perl will warn when you use this feature, unless you have | ||||
141 | explicitly disabled the warning: | ||||
142 | |||||
143 | no warnings "experimental::smartmatch"; | ||||
144 | |||||
145 | C<use feature 'switch'> tells the compiler to enable the Perl 6 | ||||
146 | given/when construct. | ||||
147 | |||||
148 | See L<perlsyn/"Switch Statements"> for details. | ||||
149 | |||||
150 | This feature is available starting with Perl 5.10. | ||||
151 | |||||
152 | =head2 The 'unicode_strings' feature | ||||
153 | |||||
154 | C<use feature 'unicode_strings'> tells the compiler to use Unicode rules | ||||
155 | in all string operations executed within its scope (unless they are also | ||||
156 | within the scope of either C<use locale> or C<use bytes>). The same applies | ||||
157 | to all regular expressions compiled within the scope, even if executed outside | ||||
158 | it. It does not change the internal representation of strings, but only how | ||||
159 | they are interpreted. | ||||
160 | |||||
161 | C<no feature 'unicode_strings'> tells the compiler to use the traditional | ||||
162 | Perl rules wherein the native character set rules is used unless it is | ||||
163 | clear to Perl that Unicode is desired. This can lead to some surprises | ||||
164 | when the behavior suddenly changes. (See | ||||
165 | L<perlunicode/The "Unicode Bug"> for details.) For this reason, if you are | ||||
166 | potentially using Unicode in your program, the | ||||
167 | C<use feature 'unicode_strings'> subpragma is B<strongly> recommended. | ||||
168 | |||||
169 | This feature is available starting with Perl 5.12; was almost fully | ||||
170 | implemented in Perl 5.14; and extended in Perl 5.16 to cover C<quotemeta>. | ||||
171 | |||||
172 | =head2 The 'unicode_eval' and 'evalbytes' features | ||||
173 | |||||
174 | Under the C<unicode_eval> feature, Perl's C<eval> function, when passed a | ||||
175 | string, will evaluate it as a string of characters, ignoring any | ||||
176 | C<use utf8> declarations. C<use utf8> exists to declare the encoding of | ||||
177 | the script, which only makes sense for a stream of bytes, not a string of | ||||
178 | characters. Source filters are forbidden, as they also really only make | ||||
179 | sense on strings of bytes. Any attempt to activate a source filter will | ||||
180 | result in an error. | ||||
181 | |||||
182 | The C<evalbytes> feature enables the C<evalbytes> keyword, which evaluates | ||||
183 | the argument passed to it as a string of bytes. It dies if the string | ||||
184 | contains any characters outside the 8-bit range. Source filters work | ||||
185 | within C<evalbytes>: they apply to the contents of the string being | ||||
186 | evaluated. | ||||
187 | |||||
188 | Together, these two features are intended to replace the historical C<eval> | ||||
189 | function, which has (at least) two bugs in it, that cannot easily be fixed | ||||
190 | without breaking existing programs: | ||||
191 | |||||
192 | =over | ||||
193 | |||||
194 | =item * | ||||
195 | |||||
196 | C<eval> behaves differently depending on the internal encoding of the | ||||
197 | string, sometimes treating its argument as a string of bytes, and sometimes | ||||
198 | as a string of characters. | ||||
199 | |||||
200 | =item * | ||||
201 | |||||
202 | Source filters activated within C<eval> leak out into whichever I<file> | ||||
203 | scope is currently being compiled. To give an example with the CPAN module | ||||
204 | L<Semi::Semicolons>: | ||||
205 | |||||
206 | BEGIN { eval "use Semi::Semicolons; # not filtered here " } | ||||
207 | # filtered here! | ||||
208 | |||||
209 | C<evalbytes> fixes that to work the way one would expect: | ||||
210 | |||||
211 | use feature "evalbytes"; | ||||
212 | BEGIN { evalbytes "use Semi::Semicolons; # filtered " } | ||||
213 | # not filtered | ||||
214 | |||||
215 | =back | ||||
216 | |||||
217 | These two features are available starting with Perl 5.16. | ||||
218 | |||||
219 | =head2 The 'current_sub' feature | ||||
220 | |||||
221 | This provides the C<__SUB__> token that returns a reference to the current | ||||
222 | subroutine or C<undef> outside of a subroutine. | ||||
223 | |||||
224 | This feature is available starting with Perl 5.16. | ||||
225 | |||||
226 | =head2 The 'array_base' feature | ||||
227 | |||||
228 | This feature supports the legacy C<$[> variable. See L<perlvar/$[> and | ||||
229 | L<arybase>. It is on by default but disabled under C<use v5.16> (see | ||||
230 | L</IMPLICIT LOADING>, below). | ||||
231 | |||||
232 | This feature is available under this name starting with Perl 5.16. In | ||||
233 | previous versions, it was simply on all the time, and this pragma knew | ||||
234 | nothing about it. | ||||
235 | |||||
236 | =head2 The 'fc' feature | ||||
237 | |||||
238 | C<use feature 'fc'> tells the compiler to enable the C<fc> function, | ||||
239 | which implements Unicode casefolding. | ||||
240 | |||||
241 | See L<perlfunc/fc> for details. | ||||
242 | |||||
243 | This feature is available from Perl 5.16 onwards. | ||||
244 | |||||
245 | =head2 The 'lexical_subs' feature | ||||
246 | |||||
247 | B<WARNING>: This feature is still experimental and the implementation may | ||||
248 | change in future versions of Perl. For this reason, Perl will | ||||
249 | warn when you use the feature, unless you have explicitly disabled the | ||||
250 | warning: | ||||
251 | |||||
252 | no warnings "experimental::lexical_subs"; | ||||
253 | |||||
254 | This enables declaration of subroutines via C<my sub foo>, C<state sub foo> | ||||
255 | and C<our sub foo> syntax. See L<perlsub/Lexical Subroutines> for details. | ||||
256 | |||||
257 | This feature is available from Perl 5.18 onwards. | ||||
258 | |||||
259 | =head2 The 'postderef' and 'postderef_qq' features | ||||
260 | |||||
261 | B<WARNING>: This feature is still experimental and the implementation may | ||||
262 | change in future versions of Perl. For this reason, Perl will | ||||
263 | warn when you use the feature, unless you have explicitly disabled the | ||||
264 | warning: | ||||
265 | |||||
266 | no warnings "experimental::postderef"; | ||||
267 | |||||
268 | The 'postderef' feature allows the use of L<postfix dereference | ||||
269 | syntax|perlref/Postfix Dereference Syntax>. For example, it will make the | ||||
270 | following two statements equivalent: | ||||
271 | |||||
272 | my @x = @{ $h->{a} }; | ||||
273 | my @x = $h->{a}->@*; | ||||
274 | |||||
275 | The 'postderef_qq' feature extends this, for array and scalar dereference, to | ||||
276 | working inside of double-quotish interpolations. | ||||
277 | |||||
278 | This feature is available from Perl 5.20 onwards. | ||||
279 | |||||
280 | =head2 The 'signatures' feature | ||||
281 | |||||
282 | B<WARNING>: This feature is still experimental and the implementation may | ||||
283 | change in future versions of Perl. For this reason, Perl will | ||||
284 | warn when you use the feature, unless you have explicitly disabled the | ||||
285 | warning: | ||||
286 | |||||
287 | no warnings "experimental::signatures"; | ||||
288 | |||||
289 | This enables unpacking of subroutine arguments into lexical variables | ||||
290 | by syntax such as | ||||
291 | |||||
292 | sub foo ($left, $right) { | ||||
293 | return $left + $right; | ||||
294 | } | ||||
295 | |||||
296 | See L<perlsub/Signatures> for details. | ||||
297 | |||||
298 | This feature is available from Perl 5.20 onwards. | ||||
299 | |||||
300 | =head2 The 'refaliasing' feature | ||||
301 | |||||
302 | B<WARNING>: This feature is still experimental and the implementation may | ||||
303 | change in future versions of Perl. For this reason, Perl will | ||||
304 | warn when you use the feature, unless you have explicitly disabled the | ||||
305 | warning: | ||||
306 | |||||
307 | no warnings "experimental::refaliasing"; | ||||
308 | |||||
309 | This enables aliasing via assignment to references: | ||||
310 | |||||
311 | \$a = \$b; # $a and $b now point to the same scalar | ||||
312 | \@a = \@b; # to the same array | ||||
313 | \%a = \%b; | ||||
314 | \&a = \&b; | ||||
315 | foreach \%hash (@array_of_hash_refs) { | ||||
316 | ... | ||||
317 | } | ||||
318 | |||||
319 | See L<perlref/Assigning to References> for details. | ||||
320 | |||||
321 | This feature is available from Perl 5.22 onwards. | ||||
322 | |||||
323 | =head2 The 'bitwise' feature | ||||
324 | |||||
325 | B<WARNING>: This feature is still experimental and the implementation may | ||||
326 | change in future versions of Perl. For this reason, Perl will | ||||
327 | warn when you use the feature, unless you have explicitly disabled the | ||||
328 | warning: | ||||
329 | |||||
330 | no warnings "experimental::bitwise"; | ||||
331 | |||||
332 | This makes the four standard bitwise operators (C<& | ^ ~>) treat their | ||||
333 | operands consistently as numbers, and introduces four new dotted operators | ||||
334 | (C<&. |. ^. ~.>) that treat their operands consistently as strings. The | ||||
335 | same applies to the assignment variants (C<&= |= ^= &.= |.= ^.=>). | ||||
336 | |||||
337 | See L<perlop/Bitwise String Operators> for details. | ||||
338 | |||||
339 | This feature is available from Perl 5.22 onwards. | ||||
340 | |||||
341 | =head1 FEATURE BUNDLES | ||||
342 | |||||
343 | It's possible to load multiple features together, using | ||||
344 | a I<feature bundle>. The name of a feature bundle is prefixed with | ||||
345 | a colon, to distinguish it from an actual feature. | ||||
346 | |||||
347 | use feature ":5.10"; | ||||
348 | |||||
349 | The following feature bundles are available: | ||||
350 | |||||
351 | bundle features included | ||||
352 | --------- ----------------- | ||||
353 | :default array_base | ||||
354 | |||||
355 | :5.10 say state switch array_base | ||||
356 | |||||
357 | :5.12 say state switch unicode_strings array_base | ||||
358 | |||||
359 | :5.14 say state switch unicode_strings array_base | ||||
360 | |||||
361 | :5.16 say state switch unicode_strings | ||||
362 | unicode_eval evalbytes current_sub fc | ||||
363 | |||||
364 | :5.18 say state switch unicode_strings | ||||
365 | unicode_eval evalbytes current_sub fc | ||||
366 | |||||
367 | :5.20 say state switch unicode_strings | ||||
368 | unicode_eval evalbytes current_sub fc | ||||
369 | |||||
370 | :5.22 say state switch unicode_strings | ||||
371 | unicode_eval evalbytes current_sub fc | ||||
372 | |||||
373 | The C<:default> bundle represents the feature set that is enabled before | ||||
374 | any C<use feature> or C<no feature> declaration. | ||||
375 | |||||
376 | Specifying sub-versions such as the C<0> in C<5.14.0> in feature bundles has | ||||
377 | no effect. Feature bundles are guaranteed to be the same for all sub-versions. | ||||
378 | |||||
379 | use feature ":5.14.0"; # same as ":5.14" | ||||
380 | use feature ":5.14.1"; # same as ":5.14" | ||||
381 | |||||
382 | =head1 IMPLICIT LOADING | ||||
383 | |||||
384 | Instead of loading feature bundles by name, it is easier to let Perl do | ||||
385 | implicit loading of a feature bundle for you. | ||||
386 | |||||
387 | There are two ways to load the C<feature> pragma implicitly: | ||||
388 | |||||
389 | =over 4 | ||||
390 | |||||
391 | =item * | ||||
392 | |||||
393 | By using the C<-E> switch on the Perl command-line instead of C<-e>. | ||||
394 | That will enable the feature bundle for that version of Perl in the | ||||
395 | main compilation unit (that is, the one-liner that follows C<-E>). | ||||
396 | |||||
397 | =item * | ||||
398 | |||||
399 | By explicitly requiring a minimum Perl version number for your program, with | ||||
400 | the C<use VERSION> construct. That is, | ||||
401 | |||||
402 | use v5.10.0; | ||||
403 | |||||
404 | will do an implicit | ||||
405 | |||||
406 | no feature ':all'; | ||||
407 | use feature ':5.10'; | ||||
408 | |||||
409 | and so on. Note how the trailing sub-version | ||||
410 | is automatically stripped from the | ||||
411 | version. | ||||
412 | |||||
413 | But to avoid portability warnings (see L<perlfunc/use>), you may prefer: | ||||
414 | |||||
415 | use 5.010; | ||||
416 | |||||
417 | with the same effect. | ||||
418 | |||||
419 | If the required version is older than Perl 5.10, the ":default" feature | ||||
420 | bundle is automatically loaded instead. | ||||
421 | |||||
422 | =back | ||||
423 | |||||
424 | =cut | ||||
425 | |||||
426 | # spent 83µs (17+66) within feature::import which was called:
# once (17µs+66µs) by main::BEGIN@0.1 at line 0 of -e | ||||
427 | 1 | 900ns | my $class = shift; | ||
428 | |||||
429 | 1 | 600ns | if (!@_) { | ||
430 | croak("No features specified"); | ||||
431 | } | ||||
432 | |||||
433 | 1 | 5µs | 1 | 66µs | __common(1, @_); # spent 66µs making 1 call to feature::__common |
434 | } | ||||
435 | |||||
436 | sub unimport { | ||||
437 | my $class = shift; | ||||
438 | |||||
439 | # A bare C<no feature> should reset to the default bundle | ||||
440 | if (!@_) { | ||||
441 | $^H &= ~($hint_uni8bit|$hint_mask); | ||||
442 | return; | ||||
443 | } | ||||
444 | |||||
445 | __common(0, @_); | ||||
446 | } | ||||
447 | |||||
448 | |||||
449 | # spent 66µs within feature::__common which was called:
# once (66µs+0s) by feature::import at line 433 | ||||
450 | 1 | 300ns | my $import = shift; | ||
451 | 1 | 2µs | my $bundle_number = $^H & $hint_mask; | ||
452 | my $features = $bundle_number != $hint_mask | ||||
453 | 1 | 2µs | && $feature_bundle{$hint_bundles[$bundle_number >> $hint_shift]}; | ||
454 | 1 | 600ns | if ($features) { | ||
455 | # Features are enabled implicitly via bundle hints. | ||||
456 | # Delete any keys that may be left over from last time. | ||||
457 | 1 | 23µs | delete @^H{ values(%feature) }; | ||
458 | 1 | 1µs | $^H |= $hint_mask; | ||
459 | 1 | 2µs | for (@$features) { | ||
460 | 1 | 2µs | $^H{$feature{$_}} = 1; | ||
461 | 1 | 1µs | $^H |= $hint_uni8bit if $_ eq 'unicode_strings'; | ||
462 | } | ||||
463 | } | ||||
464 | 1 | 13µs | while (@_) { | ||
465 | 9 | 2µs | my $name = shift; | ||
466 | 9 | 3µs | if (substr($name, 0, 1) eq ":") { | ||
467 | 1 | 600ns | my $v = substr($name, 1); | ||
468 | 1 | 500ns | if (!exists $feature_bundle{$v}) { | ||
469 | $v =~ s/^([0-9]+)\.([0-9]+).[0-9]+$/$1.$2/; | ||||
470 | if (!exists $feature_bundle{$v}) { | ||||
471 | unknown_feature_bundle(substr($name, 1)); | ||||
472 | } | ||||
473 | } | ||||
474 | 1 | 3µs | unshift @_, @{$feature_bundle{$v}}; | ||
475 | 1 | 1µs | next; | ||
476 | } | ||||
477 | 8 | 2µs | if (!exists $feature{$name}) { | ||
478 | unknown_feature($name); | ||||
479 | } | ||||
480 | 8 | 3µs | if ($import) { | ||
481 | 8 | 11µs | $^H{$feature{$name}} = 1; | ||
482 | 8 | 2µs | $^H |= $hint_uni8bit if $name eq 'unicode_strings'; | ||
483 | } else { | ||||
484 | delete $^H{$feature{$name}}; | ||||
485 | $^H &= ~ $hint_uni8bit if $name eq 'unicode_strings'; | ||||
486 | } | ||||
487 | } | ||||
488 | } | ||||
489 | |||||
490 | sub unknown_feature { | ||||
491 | my $feature = shift; | ||||
492 | croak(sprintf('Feature "%s" is not supported by Perl %vd', | ||||
493 | $feature, $^V)); | ||||
494 | } | ||||
495 | |||||
496 | sub unknown_feature_bundle { | ||||
497 | my $feature = shift; | ||||
498 | croak(sprintf('Feature bundle "%s" is not supported by Perl %vd', | ||||
499 | $feature, $^V)); | ||||
500 | } | ||||
501 | |||||
502 | sub croak { | ||||
503 | require Carp; | ||||
504 | Carp::croak(@_); | ||||
505 | } | ||||
506 | |||||
507 | 1 | 14µs | 1; | ||
508 | |||||
509 | # ex: set ro: |