Commit | Line | Data |
b1dbf716 |
1 | package # hide from PAUSE |
2 | DBIx::Class::_Util; |
3 | |
399b9455 |
4 | use DBIx::Class::StartupCheck; # load es early as we can, usually a noop |
5 | |
b1dbf716 |
6 | use warnings; |
7 | use strict; |
8 | |
750a4ad2 |
9 | use constant SPURIOUS_VERSION_CHECK_WARNINGS => ( "$]" < 5.010 ? 1 : 0); |
b1dbf716 |
10 | |
296248c3 |
11 | my $mro_recursor_stack; |
12 | |
37873f78 |
13 | BEGIN { |
14 | package # hide from pause |
15 | DBIx::Class::_ENV_; |
16 | |
17 | use Config; |
18 | |
19 | use constant { |
20 | |
21 | # but of course |
22 | BROKEN_FORK => ($^O eq 'MSWin32') ? 1 : 0, |
23 | |
750a4ad2 |
24 | BROKEN_GOTO => ( "$]" < 5.008003 ) ? 1 : 0, |
8d73fcd4 |
25 | |
7bba735d |
26 | # perl -MScalar::Util=weaken -e 'weaken( $hash{key} = \"value" )' |
27 | BROKEN_WEAK_SCALARREF_VALUES => ( "$]" < 5.008003 ) ? 1 : 0, |
28 | |
37873f78 |
29 | HAS_ITHREADS => $Config{useithreads} ? 1 : 0, |
30 | |
bbf6a9a5 |
31 | UNSTABLE_DOLLARAT => ( "$]" < 5.013002 ) ? 1 : 0, |
32 | |
db83437e |
33 | ( map |
34 | # |
35 | # the "DBIC_" prefix below is crucial - this is what makes CI pick up |
36 | # all envvars without further adjusting its scripts |
37 | # DO NOT CHANGE to the more logical { $_ => !!( $ENV{"DBIC_$_"} ) } |
38 | # |
39 | { substr($_, 5) => !!( $ENV{$_} ) } |
40 | qw( |
41 | DBIC_SHUFFLE_UNORDERED_RESULTSETS |
42 | DBIC_ASSERT_NO_INTERNAL_WANTARRAY |
43 | DBIC_ASSERT_NO_INTERNAL_INDIRECT_CALLS |
44 | DBIC_STRESSTEST_UTF8_UPGRADE_GENERATED_COLLAPSER_SOURCE |
45 | DBIC_STRESSTEST_COLUMN_INFO_UNAWARE_STORAGE |
46 | ) |
47 | ), |
f45dc928 |
48 | |
37873f78 |
49 | IV_SIZE => $Config{ivsize}, |
00882d2c |
50 | |
51 | OS_NAME => $^O, |
37873f78 |
52 | }; |
53 | |
750a4ad2 |
54 | if ( "$]" < 5.009_005) { |
37873f78 |
55 | require MRO::Compat; |
56 | constant->import( OLD_MRO => 1 ); |
296248c3 |
57 | |
58 | # |
59 | # Yes, I know this is a rather PHP-ish name, but please first read |
60 | # https://metacpan.org/source/BOBTFISH/MRO-Compat-0.12/lib/MRO/Compat.pm#L363-368 |
61 | # |
62 | # Even if we are using Class::C3::XS it still won't work, as doing |
63 | # defined( *{ "SubClass::"->{$_} }{CODE} ) |
64 | # will set pkg_gen to the same value for SubClass and *ALL PARENTS* |
65 | # |
66 | *DBIx::Class::_Util::get_real_pkg_gen = sub ($) { |
67 | require Digest::MD5; |
68 | require Math::BigInt; |
69 | |
70 | # the non-assign-unless-there-is-a-hash is deliberate |
71 | ( $mro_recursor_stack->{cache} || {} )->{$_[0]}{gen} ||= ( |
72 | Math::BigInt->new( '0x' . ( Digest::MD5::md5_hex( join "\0", map { |
73 | |
74 | ( $mro_recursor_stack->{cache} || {} )->{$_}{methlist} ||= do { |
75 | |
76 | my $class = $_; |
296248c3 |
77 | no strict 'refs'; |
1c179556 |
78 | |
79 | # RV to be hashed up and turned into a number |
80 | join "\0", ( |
81 | $class, |
296248c3 |
82 | map |
1c179556 |
83 | {( |
84 | # stringification should be sufficient, ignore names/refaddr entirely |
85 | $_, |
86 | attributes::get( $_ ), |
87 | )} |
296248c3 |
88 | map |
1c179556 |
89 | {( |
90 | # skip dummy C::C3 helper crefs |
91 | ! ( ( $Class::C3::MRO{$class} || {} )->{methods}{$_} ) |
92 | and |
296248c3 |
93 | ( |
94 | ref(\ "${class}::"->{$_} ) ne 'GLOB' |
95 | or |
96 | defined( *{ "${class}::"->{$_} }{CODE} ) |
97 | ) |
1c179556 |
98 | ) |
296248c3 |
99 | ? ( \&{"${class}::$_"} ) |
100 | : () |
101 | } |
102 | keys %{ "${class}::" } |
1c179556 |
103 | ); |
296248c3 |
104 | } |
d01688cc |
105 | } ( |
106 | |
107 | @{ |
108 | ( $mro_recursor_stack->{cache} || {} )->{$_[0]}{linear_isa} |
109 | ||= |
110 | mro::get_linear_isa($_[0]) |
111 | }, |
112 | |
113 | (( |
114 | ( $mro_recursor_stack->{cache} || {} )->{$_[0]}{is_universal} |
115 | ||= |
116 | mro::is_universal($_[0]) |
117 | ) ? () : @{ |
118 | ( $mro_recursor_stack->{cache} || {} )->{UNIVERSAL}{linear_isa} |
119 | ||= |
120 | mro::get_linear_isa("UNIVERSAL") |
121 | } ), |
122 | |
123 | ) ) ) ) |
296248c3 |
124 | ); |
125 | }; |
37873f78 |
126 | } |
127 | else { |
128 | require mro; |
129 | constant->import( OLD_MRO => 0 ); |
296248c3 |
130 | *DBIx::Class::_Util::get_real_pkg_gen = \&mro::get_pkg_gen; |
37873f78 |
131 | } |
4b1b44c1 |
132 | |
133 | # Both of these are no longer used for anything. However bring |
134 | # them back after they were purged in 08a8d8f1, as there appear |
135 | # to be outfits with *COPY PASTED* pieces of lib/DBIx/Class/Storage/* |
136 | # in their production codebases. There is no point in breaking these |
137 | # if whatever they used actually continues to work |
138 | my $warned; |
139 | my $sigh = sub { |
140 | |
141 | require Carp; |
142 | my $cluck = "The @{[ (caller(1))[3] ]} constant is no more - adjust your code" . Carp::longmess(); |
143 | |
144 | warn $cluck unless $warned->{$cluck}++; |
145 | |
146 | 0; |
147 | }; |
148 | sub DBICTEST () { &$sigh } |
149 | sub PEEPEENESS () { &$sigh } |
37873f78 |
150 | } |
151 | |
841efcb3 |
152 | # FIXME - this is not supposed to be here |
153 | # Carp::Skip to the rescue soon |
154 | use DBIx::Class::Carp '^DBIx::Class|^DBICTest'; |
155 | |
d7d45bdc |
156 | use B (); |
841efcb3 |
157 | use Carp 'croak'; |
d7d45bdc |
158 | use Storable 'nfreeze'; |
3d56e026 |
159 | use Scalar::Util qw(weaken blessed reftype refaddr); |
e85eb407 |
160 | use Sub::Quote qw(qsub); |
514b84f6 |
161 | use Sub::Name (); |
296248c3 |
162 | use attributes (); |
7f9a3f70 |
163 | |
1c30a2e4 |
164 | # Already correctly prototyped: perlbrew exec perl -MStorable -e 'warn prototype \&Storable::dclone' |
165 | BEGIN { *deep_clone = \&Storable::dclone } |
166 | |
b1dbf716 |
167 | use base 'Exporter'; |
3705e3b2 |
168 | our @EXPORT_OK = qw( |
d634850b |
169 | sigwarn_silencer modver_gt_or_eq modver_gt_or_eq_and_lt |
77c3a5dc |
170 | fail_on_internal_wantarray fail_on_internal_call |
296248c3 |
171 | refdesc refcount hrefaddr set_subname describe_class_methods |
ddcc02d1 |
172 | scope_guard detected_reinvoked_destructor |
10be570e |
173 | is_exception dbic_internal_try visit_namespaces |
174 | quote_sub qsub perlstring serialize deep_clone dump_value uniq |
439a7283 |
175 | parent_dir mkdir_p |
facd0e8e |
176 | UNRESOLVABLE_CONDITION |
3705e3b2 |
177 | ); |
052a832c |
178 | |
facd0e8e |
179 | use constant UNRESOLVABLE_CONDITION => \ '1 = 0'; |
180 | |
e85eb407 |
181 | BEGIN { |
140bcb6a |
182 | # add preliminary attribute support |
183 | # FIXME FIXME FIXME |
184 | # To be revisited when Moo with proper attr support ships |
e85eb407 |
185 | Sub::Quote->VERSION(2.002); |
186 | } |
187 | # Override forcing no_defer, and adding naming consistency checks |
188 | sub quote_sub { |
189 | Carp::confess( "Anonymous quoting not supported by the DBIC sub_quote override - supply a sub name" ) if |
190 | @_ < 2 |
191 | or |
192 | ! defined $_[1] |
193 | or |
194 | length ref $_[1] |
195 | ; |
196 | |
197 | Carp::confess( "The DBIC sub_quote override expects sub name '$_[0]' to be fully qualified" ) |
198 | unless $_[0] =~ /::/; |
199 | |
200 | Carp::confess( "The DBIC sub_quote override expects the sub name '$_[0]' to match the supplied 'package' argument" ) if |
201 | $_[3] |
202 | and |
203 | defined $_[3]->{package} |
204 | and |
205 | index( $_[0], $_[3]->{package} ) != 0 |
206 | ; |
207 | |
208 | my @caller = caller(0); |
209 | my $sq_opts = { |
210 | package => $caller[0], |
211 | hints => $caller[8], |
212 | warning_bits => $caller[9], |
213 | hintshash => $caller[10], |
214 | %{ $_[3] || {} }, |
215 | |
216 | # explicitly forced for everything |
217 | no_defer => 1, |
218 | }; |
219 | |
220 | my $cref = Sub::Quote::quote_sub( $_[0], $_[1], $_[2]||{}, $sq_opts ); |
140bcb6a |
221 | |
222 | # FIXME FIXME FIXME |
223 | # To be revisited when Moo with proper attr support ships |
224 | if( |
225 | # external application does not work on things like :prototype(...), :lvalue, etc |
226 | my @attrs = grep { |
227 | $_ !~ /^[a-z]/ |
228 | or |
229 | Carp::confess( "The DBIC sub_quote override does not support applying of reserved attribute '$_'" ) |
230 | } @{ $sq_opts->{attributes} || []} |
231 | ) { |
232 | Carp::confess( "The DBIC sub_quote override does not allow mixing 'attributes' with 'no_install'" ) |
233 | if $sq_opts->{no_install}; |
234 | |
235 | # might be different from $sq_opts->{package}; |
236 | my ($install_into) = $_[0] =~ /(.+)::[^:]+$/; |
237 | |
238 | attributes->import( $install_into, $cref, @attrs ); |
239 | } |
240 | |
241 | $cref; |
e85eb407 |
242 | } |
243 | |
bf302897 |
244 | sub sigwarn_silencer ($) { |
052a832c |
245 | my $pattern = shift; |
246 | |
247 | croak "Expecting a regexp" if ref $pattern ne 'Regexp'; |
248 | |
249 | my $orig_sig_warn = $SIG{__WARN__} || sub { CORE::warn(@_) }; |
250 | |
251 | return sub { &$orig_sig_warn unless $_[0] =~ $pattern }; |
252 | } |
b1dbf716 |
253 | |
01b25f12 |
254 | sub perlstring ($) { q{"}. quotemeta( shift ). q{"} }; |
255 | |
3d56e026 |
256 | sub hrefaddr ($) { sprintf '0x%x', &refaddr||0 } |
8433421f |
257 | |
258 | sub refdesc ($) { |
259 | croak "Expecting a reference" if ! length ref $_[0]; |
260 | |
261 | # be careful not to trigger stringification, |
262 | # reuse @_ as a scratch-pad |
263 | sprintf '%s%s(0x%x)', |
264 | ( defined( $_[1] = blessed $_[0]) ? "$_[1]=" : '' ), |
265 | reftype $_[0], |
3d56e026 |
266 | refaddr($_[0]), |
8433421f |
267 | ; |
268 | } |
bf302897 |
269 | |
270 | sub refcount ($) { |
dac7972a |
271 | croak "Expecting a reference" if ! length ref $_[0]; |
272 | |
dac7972a |
273 | # No tempvars - must operate on $_[0], otherwise the pad |
274 | # will count as an extra ref |
275 | B::svref_2object($_[0])->REFCNT; |
276 | } |
277 | |
10be570e |
278 | sub visit_namespaces { |
279 | my $args = { (ref $_[0]) ? %{$_[0]} : @_ }; |
280 | |
281 | my $visited_count = 1; |
282 | |
283 | # A package and a namespace are subtly different things |
284 | $args->{package} ||= 'main'; |
285 | $args->{package} = 'main' if $args->{package} =~ /^ :: (?: main )? $/x; |
286 | $args->{package} =~ s/^:://; |
287 | |
288 | if ( $args->{action}->($args->{package}) ) { |
289 | my $ns = |
290 | ( ($args->{package} eq 'main') ? '' : $args->{package} ) |
291 | . |
292 | '::' |
293 | ; |
294 | |
295 | $visited_count += visit_namespaces( %$args, package => $_ ) for |
296 | grep |
297 | # this happens sometimes on %:: traversal |
298 | { $_ ne '::main' } |
299 | map |
300 | { $_ =~ /^(.+?)::$/ ? "$ns$1" : () } |
301 | do { no strict 'refs'; keys %$ns } |
302 | ; |
303 | } |
304 | |
305 | $visited_count; |
306 | } |
307 | |
514b84f6 |
308 | # FIXME In another life switch this to a polyfill like the one in namespace::clean |
309 | sub set_subname ($$) { |
310 | |
311 | # fully qualify name |
312 | splice @_, 0, 1, caller(0) . "::$_[0]" |
313 | if $_[0] !~ /::|'/; |
314 | |
315 | &Sub::Name::subname; |
316 | } |
317 | |
b34d9331 |
318 | sub serialize ($) { |
b34d9331 |
319 | local $Storable::canonical = 1; |
d7d45bdc |
320 | nfreeze($_[0]); |
b34d9331 |
321 | } |
322 | |
10be570e |
323 | sub uniq { |
324 | my( %seen, $seen_undef, $numeric_preserving_copy ); |
325 | grep { not ( |
326 | defined $_ |
327 | ? $seen{ $numeric_preserving_copy = $_ }++ |
328 | : $seen_undef++ |
329 | ) } @_; |
330 | } |
331 | |
2d5ac3cf |
332 | my $dd_obj; |
8fc4291e |
333 | sub dump_value ($) { |
334 | local $Data::Dumper::Indent = 1 |
335 | unless defined $Data::Dumper::Indent; |
336 | |
2d5ac3cf |
337 | my $dump_str = ( |
8fc4291e |
338 | $dd_obj |
339 | ||= |
340 | do { |
341 | require Data::Dumper; |
342 | my $d = Data::Dumper->new([]) |
343 | ->Purity(0) |
344 | ->Pad('') |
345 | ->Useqq(1) |
346 | ->Terse(1) |
347 | ->Freezer('') |
348 | ->Quotekeys(0) |
349 | ->Bless('bless') |
350 | ->Pair(' => ') |
351 | ->Sortkeys(1) |
352 | ->Deparse(1) |
353 | ; |
354 | |
355 | $d->Sparseseen(1) if modver_gt_or_eq ( |
356 | 'Data::Dumper', '2.136' |
357 | ); |
358 | |
359 | $d; |
360 | } |
361 | )->Values([$_[0]])->Dump; |
362 | |
363 | $dd_obj->Reset->Values([]); |
364 | |
365 | $dump_str; |
366 | } |
367 | |
bbf6a9a5 |
368 | sub scope_guard (&) { |
369 | croak 'Calling scope_guard() in void context makes no sense' |
370 | if ! defined wantarray; |
371 | |
372 | # no direct blessing of coderefs - DESTROY is buggy on those |
373 | bless [ $_[0] ], 'DBIx::Class::_Util::ScopeGuard'; |
374 | } |
375 | { |
376 | package # |
377 | DBIx::Class::_Util::ScopeGuard; |
378 | |
379 | sub DESTROY { |
380 | &DBIx::Class::_Util::detected_reinvoked_destructor; |
381 | |
382 | local $@ if DBIx::Class::_ENV_::UNSTABLE_DOLLARAT; |
383 | |
384 | eval { |
385 | $_[0]->[0]->(); |
386 | 1; |
118b2c36 |
387 | } |
388 | or |
389 | Carp::cluck( |
390 | "Execution of scope guard $_[0] resulted in the non-trappable exception:\n\n$@" |
391 | ); |
bbf6a9a5 |
392 | } |
393 | } |
394 | |
395 | |
841efcb3 |
396 | sub is_exception ($) { |
397 | my $e = $_[0]; |
398 | |
35cf7d1a |
399 | # FIXME |
a0414138 |
400 | # this is not strictly correct - an eval setting $@ to undef |
401 | # is *not* the same as an eval setting $@ to '' |
402 | # but for the sake of simplicity assume the following for |
403 | # the time being |
404 | return 0 unless defined $e; |
405 | |
841efcb3 |
406 | my ($not_blank, $suberror); |
407 | { |
5c33c8be |
408 | local $SIG{__DIE__} if $SIG{__DIE__}; |
841efcb3 |
409 | local $@; |
410 | eval { |
d52c4a75 |
411 | # The ne() here is deliberate - a plain length($e), or worse "$e" ne |
412 | # will entirely obviate the need for the encolsing eval{}, as the |
413 | # condition we guard against is a missing fallback overload |
414 | $not_blank = ( $e ne '' ); |
841efcb3 |
415 | 1; |
416 | } or $suberror = $@; |
417 | } |
418 | |
419 | if (defined $suberror) { |
420 | if (length (my $class = blessed($e) )) { |
421 | carp_unique( sprintf( |
9bea2000 |
422 | 'External exception class %s implements partial (broken) overloading ' |
423 | . 'preventing its instances from being used in simple ($x eq $y) ' |
841efcb3 |
424 | . 'comparisons. Given Perl\'s "globally cooperative" exception ' |
425 | . 'handling this type of brokenness is extremely dangerous on ' |
426 | . 'exception objects, as it may (and often does) result in silent ' |
427 | . '"exception substitution". DBIx::Class tries to work around this ' |
428 | . 'as much as possible, but other parts of your software stack may ' |
429 | . 'not be even aware of this. Please submit a bugreport against the ' |
430 | . 'distribution containing %s and in the meantime apply a fix similar ' |
431 | . 'to the one shown at %s, in order to ensure your exception handling ' |
432 | . 'is saner application-wide. What follows is the actual error text ' |
433 | . "as generated by Perl itself:\n\n%s\n ", |
9bea2000 |
434 | $class, |
841efcb3 |
435 | $class, |
436 | 'http://v.gd/DBIC_overload_tempfix/', |
437 | $suberror, |
438 | )); |
439 | |
440 | # workaround, keeps spice flowing |
d52c4a75 |
441 | $not_blank = !!( length $e ); |
841efcb3 |
442 | } |
443 | else { |
444 | # not blessed yet failed the 'ne'... this makes 0 sense... |
445 | # just throw further |
446 | die $suberror |
447 | } |
448 | } |
84e4e006 |
449 | elsif ( |
450 | # a ref evaluating to '' is definitively a "null object" |
451 | ( not $not_blank ) |
452 | and |
453 | length( my $class = ref $e ) |
454 | ) { |
455 | carp_unique( sprintf( |
456 | "Objects of external exception class '%s' stringify to '' (the " |
457 | . 'empty string), implementing the so called null-object-pattern. ' |
458 | . 'Given Perl\'s "globally cooperative" exception handling using this ' |
459 | . 'class of exceptions is extremely dangerous, as it may (and often ' |
460 | . 'does) result in silent discarding of errors. DBIx::Class tries to ' |
461 | . 'work around this as much as possible, but other parts of your ' |
462 | . 'software stack may not be even aware of the problem. Please submit ' |
35cf7d1a |
463 | . 'a bugreport against the distribution containing %s', |
84e4e006 |
464 | |
465 | ($class) x 2, |
466 | )); |
467 | |
468 | $not_blank = 1; |
469 | } |
841efcb3 |
470 | |
471 | return $not_blank; |
472 | } |
473 | |
3d56e026 |
474 | { |
ddcc02d1 |
475 | my $callstack_state; |
476 | |
477 | # Recreate the logic of try(), while reusing the catch()/finally() as-is |
478 | # |
479 | # FIXME: We need to move away from Try::Tiny entirely (way too heavy and |
480 | # yes, shows up ON TOP of profiles) but this is a batle for another maint |
481 | sub dbic_internal_try (&;@) { |
482 | |
483 | my $try_cref = shift; |
484 | my $catch_cref = undef; # apparently this is a thing... https://rt.perl.org/Public/Bug/Display.html?id=119311 |
485 | |
486 | for my $arg (@_) { |
487 | |
488 | if( ref($arg) eq 'Try::Tiny::Catch' ) { |
489 | |
490 | croak 'dbic_internal_try() may not be followed by multiple catch() blocks' |
491 | if $catch_cref; |
492 | |
493 | $catch_cref = $$arg; |
494 | } |
495 | elsif ( ref($arg) eq 'Try::Tiny::Finally' ) { |
496 | croak 'dbic_internal_try() does not support finally{}'; |
497 | } |
498 | else { |
499 | croak( |
500 | 'dbic_internal_try() encountered an unexpected argument ' |
501 | . "'@{[ defined $arg ? $arg : 'UNDEF' ]}' - perhaps " |
502 | . 'a missing semi-colon before or ' # trailing space important |
503 | ); |
504 | } |
505 | } |
506 | |
507 | my $wantarray = wantarray; |
508 | my $preexisting_exception = $@; |
509 | |
510 | my @ret; |
511 | my $all_good = eval { |
512 | $@ = $preexisting_exception; |
513 | |
514 | local $callstack_state->{in_internal_try} = 1 |
515 | unless $callstack_state->{in_internal_try}; |
516 | |
517 | # always unset - someone may have snuck it in |
5c33c8be |
518 | local $SIG{__DIE__} if $SIG{__DIE__}; |
ddcc02d1 |
519 | |
520 | if( $wantarray ) { |
521 | @ret = $try_cref->(); |
522 | } |
523 | elsif( defined $wantarray ) { |
524 | $ret[0] = $try_cref->(); |
525 | } |
526 | else { |
527 | $try_cref->(); |
528 | } |
529 | |
530 | 1; |
531 | }; |
532 | |
533 | my $exception = $@; |
534 | $@ = $preexisting_exception; |
535 | |
536 | if ( $all_good ) { |
537 | return $wantarray ? @ret : $ret[0] |
538 | } |
539 | elsif ( $catch_cref ) { |
540 | for ( $exception ) { |
541 | return $catch_cref->($exception); |
542 | } |
543 | } |
544 | |
545 | return; |
546 | } |
547 | |
548 | sub in_internal_try { !! $callstack_state->{in_internal_try} } |
549 | } |
550 | |
551 | { |
3d56e026 |
552 | my $destruction_registry = {}; |
553 | |
04c1a070 |
554 | sub DBIx::Class::__Util_iThreads_handler__::CLONE { |
d098704f |
555 | %$destruction_registry = map { |
556 | (defined $_) |
557 | ? ( refaddr($_) => $_ ) |
558 | : () |
559 | } values %$destruction_registry; |
d52fc26d |
560 | |
d098704f |
561 | weaken($_) for values %$destruction_registry; |
29211e03 |
562 | |
d52fc26d |
563 | # Dummy NEXTSTATE ensuring the all temporaries on the stack are garbage |
564 | # collected before leaving this scope. Depending on the code above, this |
565 | # may very well be just a preventive measure guarding future modifications |
566 | undef; |
3d56e026 |
567 | } |
568 | |
569 | # This is almost invariably invoked from within DESTROY |
570 | # throwing exceptions won't work |
e1d9e578 |
571 | sub detected_reinvoked_destructor { |
3d56e026 |
572 | |
573 | # quick "garbage collection" pass - prevents the registry |
574 | # from slowly growing with a bunch of undef-valued keys |
575 | defined $destruction_registry->{$_} or delete $destruction_registry->{$_} |
576 | for keys %$destruction_registry; |
577 | |
e1d9e578 |
578 | if (! length ref $_[0]) { |
579 | printf STDERR '%s() expects a blessed reference %s', |
3d56e026 |
580 | (caller(0))[3], |
581 | Carp::longmess, |
582 | ; |
583 | return undef; # don't know wtf to do |
584 | } |
e1d9e578 |
585 | elsif (! defined $destruction_registry->{ my $addr = refaddr($_[0]) } ) { |
3d56e026 |
586 | weaken( $destruction_registry->{$addr} = $_[0] ); |
587 | return 0; |
588 | } |
589 | else { |
590 | carp_unique ( sprintf ( |
591 | 'Preventing *MULTIPLE* DESTROY() invocations on %s - an *EXTREMELY ' |
592 | . 'DANGEROUS* condition which is *ALMOST CERTAINLY GLOBAL* within your ' |
593 | . 'application, affecting *ALL* classes without active protection against ' |
594 | . 'this. Diagnose and fix the root cause ASAP!!!%s', |
595 | refdesc $_[0], |
596 | ( ( $INC{'Devel/StackTrace.pm'} and ! do { local $@; eval { Devel::StackTrace->VERSION(2) } } ) |
597 | ? " (likely culprit Devel::StackTrace\@@{[ Devel::StackTrace->VERSION ]} found in %INC, http://is.gd/D_ST_refcap)" |
598 | : '' |
599 | ) |
600 | )); |
601 | |
602 | return 1; |
603 | } |
604 | } |
605 | } |
606 | |
7302b3e0 |
607 | my $module_name_rx = qr/ \A [A-Z_a-z] [0-9A-Z_a-z]* (?: :: [0-9A-Z_a-z]+ )* \z /x; |
608 | my $ver_rx = qr/ \A [0-9]+ (?: \. [0-9]+ )* (?: \_ [0-9]+ )* \z /x; |
609 | |
bf302897 |
610 | sub modver_gt_or_eq ($$) { |
b1dbf716 |
611 | my ($mod, $ver) = @_; |
612 | |
613 | croak "Nonsensical module name supplied" |
7302b3e0 |
614 | if ! defined $mod or $mod !~ $module_name_rx; |
b1dbf716 |
615 | |
616 | croak "Nonsensical minimum version supplied" |
7302b3e0 |
617 | if ! defined $ver or $ver !~ $ver_rx; |
618 | |
619 | no strict 'refs'; |
620 | my $ver_cache = ${"${mod}::__DBIC_MODULE_VERSION_CHECKS__"} ||= ( $mod->VERSION |
621 | ? {} |
622 | : croak "$mod does not seem to provide a version (perhaps it never loaded)" |
623 | ); |
624 | |
625 | ! defined $ver_cache->{$ver} |
626 | and |
627 | $ver_cache->{$ver} = do { |
b1dbf716 |
628 | |
7302b3e0 |
629 | local $SIG{__WARN__} = sigwarn_silencer( qr/\Qisn't numeric in subroutine entry/ ) |
630 | if SPURIOUS_VERSION_CHECK_WARNINGS; |
b1dbf716 |
631 | |
5c33c8be |
632 | local $SIG{__DIE__} if $SIG{__DIE__}; |
7302b3e0 |
633 | local $@; |
7302b3e0 |
634 | eval { $mod->VERSION($ver) } ? 1 : 0; |
635 | }; |
56270bba |
636 | |
7302b3e0 |
637 | $ver_cache->{$ver}; |
b1dbf716 |
638 | } |
639 | |
d634850b |
640 | sub modver_gt_or_eq_and_lt ($$$) { |
641 | my ($mod, $v_ge, $v_lt) = @_; |
642 | |
643 | croak "Nonsensical maximum version supplied" |
7302b3e0 |
644 | if ! defined $v_lt or $v_lt !~ $ver_rx; |
d634850b |
645 | |
646 | return ( |
647 | modver_gt_or_eq($mod, $v_ge) |
648 | and |
649 | ! modver_gt_or_eq($mod, $v_lt) |
650 | ) ? 1 : 0; |
651 | } |
652 | |
296248c3 |
653 | { |
654 | # FIXME - should be a private my(), but I'm too uncertain whether |
655 | # all bases are covered |
656 | our $describe_class_query_cache; |
657 | |
658 | sub describe_class_methods { |
1cf2ad8b |
659 | my ($class, $requested_mro) = @_; |
296248c3 |
660 | |
661 | croak "Expecting a class name" |
5e67be26 |
662 | if not defined $class or $class !~ $module_name_rx; |
296248c3 |
663 | |
1cf2ad8b |
664 | $requested_mro ||= mro::get_mro($class); |
665 | |
666 | # mro::set_mro() does not bump pkg_gen - WHAT THE FUCK?! |
667 | my $query_cache_key = "$class|$requested_mro"; |
668 | |
669 | my $stack_cache_key = |
670 | ( mro::get_mro($class) eq $requested_mro ) |
671 | ? $class |
672 | : $query_cache_key |
673 | ; |
674 | |
296248c3 |
675 | # use a cache on old MRO, since while we are recursing in this function |
676 | # nothing can possibly change (the speedup is immense) |
677 | # (yes, people could be tie()ing the stash and adding methods on access |
678 | # but there is a limit to how much crazy can be supported here) |
679 | # |
680 | # we use the cache for linear_isa lookups on new MRO as well - it adds |
681 | # a *tiny* speedup, and simplifies the code a lot |
682 | # |
683 | local $mro_recursor_stack->{cache} = {} |
684 | unless $mro_recursor_stack->{cache}; |
685 | |
686 | my $my_gen = 0; |
687 | |
d01688cc |
688 | $my_gen += get_real_pkg_gen($_) for ( my @full_ISA = ( |
689 | |
690 | @{ |
1cf2ad8b |
691 | $mro_recursor_stack->{cache}{$stack_cache_key}{linear_isa} |
296248c3 |
692 | ||= |
1cf2ad8b |
693 | mro::get_linear_isa($class, $requested_mro) |
d01688cc |
694 | }, |
695 | |
696 | (( |
697 | $mro_recursor_stack->{cache}{$class}{is_universal} |
698 | ||= |
699 | mro::is_universal($class) |
700 | ) ? () : @{ |
701 | $mro_recursor_stack->{cache}{UNIVERSAL}{linear_isa} |
702 | ||= |
703 | mro::get_linear_isa("UNIVERSAL") |
704 | }), |
705 | |
706 | )); |
296248c3 |
707 | |
1cf2ad8b |
708 | my $slot = $describe_class_query_cache->{$query_cache_key} ||= {}; |
296248c3 |
709 | |
710 | unless ( ($slot->{cumulative_gen}||0) == $my_gen ) { |
711 | |
d01688cc |
712 | # remove ourselves from ISA |
713 | shift @full_ISA; |
714 | |
296248c3 |
715 | # reset |
716 | %$slot = ( |
717 | class => $class, |
d01688cc |
718 | isa => [ |
1cf2ad8b |
719 | @{ $mro_recursor_stack->{cache}{$stack_cache_key}{linear_isa} } |
720 | [ 1 .. $#{$mro_recursor_stack->{cache}{$stack_cache_key}{linear_isa}} ] |
d01688cc |
721 | ], |
296248c3 |
722 | mro => { |
1cf2ad8b |
723 | type => $requested_mro, |
724 | is_c3 => ( ($requested_mro eq 'c3') ? 1 : 0 ), |
296248c3 |
725 | }, |
726 | cumulative_gen => $my_gen, |
727 | ); |
296248c3 |
728 | |
296248c3 |
729 | # ensure the cache is populated for the parents, code below can then |
730 | # efficiently operate over the query_cache directly |
d01688cc |
731 | describe_class_methods($_) for reverse @full_ISA; |
296248c3 |
732 | |
296248c3 |
733 | no strict 'refs'; |
734 | |
735 | # combine full ISA-order inherited and local method list into a |
736 | # "shadowing stack" |
737 | |
738 | ( |
085dbdd6 |
739 | unshift @{ $slot->{methods}{$_->{name}} }, $_ |
296248c3 |
740 | |
741 | and |
742 | |
085dbdd6 |
743 | ( |
744 | $_->{via_class} ne $class |
745 | or |
746 | $slot->{methods_defined_in_class}{$_->{name}} = $_ |
747 | ) |
296248c3 |
748 | |
749 | and |
750 | |
751 | @{ $slot->{methods}{$_->{name}} } > 1 |
752 | |
753 | and |
754 | |
755 | $slot->{methods_with_supers}{$_->{name}} = $slot->{methods}{$_->{name}} |
756 | |
757 | ) for ( |
758 | |
d01688cc |
759 | # what describe_class_methods for @full_ISA produced above |
085dbdd6 |
760 | ( map { values %{ |
761 | $describe_class_query_cache->{$_}{methods_defined_in_class} || {} |
1cf2ad8b |
762 | } } map { "$_|" . mro::get_mro($_) } reverse @full_ISA ), |
296248c3 |
763 | |
764 | # our own non-cleaned subs + their attributes |
765 | ( map { |
766 | ( |
1c179556 |
767 | # need to account for dummy helper crefs under OLD_MRO |
296248c3 |
768 | ( |
1c179556 |
769 | ! DBIx::Class::_ENV_::OLD_MRO |
296248c3 |
770 | or |
1c179556 |
771 | ! ( ( $Class::C3::MRO{$class} || {} )->{methods}{$_} ) |
296248c3 |
772 | ) |
773 | and |
1c179556 |
774 | # these 2 OR-ed checks are sufficient for 5.10+ |
296248c3 |
775 | ( |
1c179556 |
776 | ref(\ "${class}::"->{$_} ) ne 'GLOB' |
296248c3 |
777 | or |
1c179556 |
778 | defined( *{ "${class}::"->{$_} }{CODE} ) |
296248c3 |
779 | ) |
780 | ) ? { |
781 | via_class => $class, |
782 | name => $_, |
5e67be26 |
783 | attributes => { |
784 | map { $_ => 1 } attributes::get( \&{"${class}::${_}"} ) |
785 | }, |
296248c3 |
786 | } |
787 | : () |
788 | } keys %{"${class}::"} ) |
789 | ); |
790 | |
791 | |
792 | # recalculate the pkg_gen on newer perls under Taint mode, |
793 | # because of shit like: |
794 | # perl -T -Mmro -e 'package Foo; sub bar {}; defined( *{ "Foo::"->{bar}}{CODE} ) and warn mro::get_pkg_gen("Foo") for (1,2,3)' |
795 | # |
796 | if ( |
797 | ! DBIx::Class::_ENV_::OLD_MRO |
798 | and |
799 | ${^TAINT} |
800 | ) { |
801 | |
802 | $slot->{cumulative_gen} = 0; |
803 | $slot->{cumulative_gen} += get_real_pkg_gen($_) |
d01688cc |
804 | for $class, @full_ISA; |
296248c3 |
805 | } |
806 | } |
807 | |
808 | # RV |
809 | +{ %$slot }; |
810 | } |
811 | } |
812 | |
e3be2b6f |
813 | |
814 | # |
815 | # Why not just use some higher-level module or at least File::Spec here? |
816 | # Because: |
817 | # 1) This is a *very* rarely used function, and the deptree is large |
818 | # enough already as it is |
819 | # |
820 | # 2) (more importantly) Our tooling is utter shit in this area. There |
821 | # is no comprehensive support for UNC paths in PathTools and there |
822 | # are also various small bugs in representation across different |
823 | # path-manipulation CPAN offerings. |
824 | # |
825 | # Since this routine is strictly used for logical path processing (it |
826 | # *must* be able to work with not-yet-existing paths), use this seemingly |
827 | # simple but I *think* complete implementation to feed to other consumers |
828 | # |
829 | # If bugs are ever uncovered in this routine, *YOU ARE URGED TO RESIST* |
830 | # the impulse to bring in an external dependency. During runtime there |
831 | # is exactly one spot that could potentially maybe once in a blue moon |
832 | # use this function. Keep it lean. |
833 | # |
834 | sub parent_dir ($) { |
835 | ( $_[0] =~ m{ [\/\\] ( \.{0,2} ) ( [\/\\]* ) \z }x ) |
836 | ? ( |
837 | $_[0] |
838 | . |
839 | ( ( length($1) and ! length($2) ) ? '/' : '' ) |
840 | . |
841 | '../' |
842 | ) |
843 | : ( |
844 | require File::Spec |
845 | and |
846 | File::Spec->catpath ( |
847 | ( File::Spec->splitpath( "$_[0]" ) )[0,1], |
848 | '/', |
849 | ) |
850 | ) |
851 | ; |
852 | } |
853 | |
439a7283 |
854 | sub mkdir_p ($) { |
855 | require File::Path; |
856 | # do not ask for a recent version, use 1.x API calls |
857 | File::Path::mkpath([ "$_[0]" ]); # File::Path does not like objects |
858 | } |
859 | |
e3be2b6f |
860 | |
a9da9b6a |
861 | { |
862 | my $list_ctx_ok_stack_marker; |
863 | |
e89c7968 |
864 | sub fail_on_internal_wantarray () { |
a9da9b6a |
865 | return if $list_ctx_ok_stack_marker; |
866 | |
867 | if (! defined wantarray) { |
868 | croak('fail_on_internal_wantarray() needs a tempvar to save the stack marker guard'); |
869 | } |
870 | |
871 | my $cf = 1; |
821edc09 |
872 | while ( ( (CORE::caller($cf+1))[3] || '' ) =~ / :: (?: |
a9da9b6a |
873 | |
874 | # these are public API parts that alter behavior on wantarray |
875 | search | search_related | slice | search_literal |
876 | |
877 | | |
878 | |
879 | # these are explicitly prefixed, since we only recognize them as valid |
880 | # escapes when they come from the guts of CDBICompat |
881 | CDBICompat .*? :: (?: search_where | retrieve_from_sql | retrieve_all ) |
882 | |
883 | ) $/x ) { |
884 | $cf++; |
885 | } |
886 | |
e89c7968 |
887 | my ($fr, $want, $argdesc); |
888 | { |
889 | package DB; |
821edc09 |
890 | $fr = [ CORE::caller($cf) ]; |
891 | $want = ( CORE::caller($cf-1) )[5]; |
e89c7968 |
892 | $argdesc = ref $DB::args[0] |
893 | ? DBIx::Class::_Util::refdesc($DB::args[0]) |
894 | : 'non ' |
895 | ; |
896 | }; |
897 | |
a9da9b6a |
898 | if ( |
e89c7968 |
899 | $want and $fr->[0] =~ /^(?:DBIx::Class|DBICx::)/ |
a9da9b6a |
900 | ) { |
a9da9b6a |
901 | DBIx::Class::Exception->throw( sprintf ( |
e89c7968 |
902 | "Improper use of %s instance in list context at %s line %d\n\n Stacktrace starts", |
903 | $argdesc, @{$fr}[1,2] |
a9da9b6a |
904 | ), 'with_stacktrace'); |
905 | } |
906 | |
d098704f |
907 | weaken( $list_ctx_ok_stack_marker = my $mark = [] ); |
908 | |
a9da9b6a |
909 | $mark; |
910 | } |
911 | } |
912 | |
77c3a5dc |
913 | sub fail_on_internal_call { |
914 | my ($fr, $argdesc); |
915 | { |
916 | package DB; |
821edc09 |
917 | $fr = [ CORE::caller(1) ]; |
77c3a5dc |
918 | $argdesc = ref $DB::args[0] |
919 | ? DBIx::Class::_Util::refdesc($DB::args[0]) |
e5053694 |
920 | : ( $DB::args[0] . '' ) |
77c3a5dc |
921 | ; |
922 | }; |
923 | |
3b020224 |
924 | my @fr2; |
925 | # need to make allowance for a proxy-yet-direct call |
926 | my $check_fr = ( |
927 | $fr->[0] eq 'DBIx::Class::ResultSourceProxy' |
928 | and |
929 | @fr2 = (CORE::caller(2)) |
930 | and |
931 | ( |
932 | ( $fr->[3] =~ /([^:])+$/ )[0] |
933 | eq |
934 | ( $fr2[3] =~ /([^:])+$/ )[0] |
935 | ) |
936 | ) |
937 | ? \@fr2 |
938 | : $fr |
939 | ; |
940 | |
77c3a5dc |
941 | if ( |
942 | $argdesc |
943 | and |
3b020224 |
944 | $check_fr->[0] =~ /^(?:DBIx::Class|DBICx::)/ |
77c3a5dc |
945 | and |
3b020224 |
946 | $check_fr->[1] !~ /\b(?:CDBICompat|ResultSetProxy)\b/ # no point touching there |
77c3a5dc |
947 | ) { |
948 | DBIx::Class::Exception->throw( sprintf ( |
e5053694 |
949 | "Illegal internal call of indirect proxy-method %s() with argument '%s': examine the last lines of the proxy method deparse below to determine what to call directly instead at %s on line %d\n\n%s\n\n Stacktrace starts", |
77c3a5dc |
950 | $fr->[3], $argdesc, @{$fr}[1,2], ( $fr->[6] || do { |
951 | require B::Deparse; |
952 | no strict 'refs'; |
953 | B::Deparse->new->coderef2text(\&{$fr->[3]}) |
954 | }), |
955 | ), 'with_stacktrace'); |
956 | } |
957 | } |
958 | |
b1dbf716 |
959 | 1; |