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 | |
296248c3 |
9 | my $mro_recursor_stack; |
10 | |
37873f78 |
11 | BEGIN { |
12 | package # hide from pause |
13 | DBIx::Class::_ENV_; |
14 | |
15 | use Config; |
16 | |
17 | use constant { |
3605497b |
18 | PERL_VERSION => "$]", |
19 | OS_NAME => "$^O", |
20 | }; |
21 | |
22 | use constant { |
37873f78 |
23 | |
24 | # but of course |
3605497b |
25 | BROKEN_FORK => (OS_NAME eq 'MSWin32') ? 1 : 0, |
37873f78 |
26 | |
3605497b |
27 | BROKEN_GOTO => ( PERL_VERSION < 5.008003 ) ? 1 : 0, |
8d73fcd4 |
28 | |
7bba735d |
29 | # perl -MScalar::Util=weaken -e 'weaken( $hash{key} = \"value" )' |
3605497b |
30 | BROKEN_WEAK_SCALARREF_VALUES => ( PERL_VERSION < 5.008003 ) ? 1 : 0, |
7bba735d |
31 | |
37873f78 |
32 | HAS_ITHREADS => $Config{useithreads} ? 1 : 0, |
33 | |
3605497b |
34 | UNSTABLE_DOLLARAT => ( PERL_VERSION < 5.013002 ) ? 1 : 0, |
bbf6a9a5 |
35 | |
db83437e |
36 | ( map |
37 | # |
38 | # the "DBIC_" prefix below is crucial - this is what makes CI pick up |
39 | # all envvars without further adjusting its scripts |
40 | # DO NOT CHANGE to the more logical { $_ => !!( $ENV{"DBIC_$_"} ) } |
41 | # |
42 | { substr($_, 5) => !!( $ENV{$_} ) } |
43 | qw( |
44 | DBIC_SHUFFLE_UNORDERED_RESULTSETS |
45 | DBIC_ASSERT_NO_INTERNAL_WANTARRAY |
46 | DBIC_ASSERT_NO_INTERNAL_INDIRECT_CALLS |
47 | DBIC_STRESSTEST_UTF8_UPGRADE_GENERATED_COLLAPSER_SOURCE |
48 | DBIC_STRESSTEST_COLUMN_INFO_UNAWARE_STORAGE |
49 | ) |
50 | ), |
f45dc928 |
51 | |
37873f78 |
52 | IV_SIZE => $Config{ivsize}, |
53 | }; |
54 | |
3605497b |
55 | if ( PERL_VERSION < 5.009_005) { |
37873f78 |
56 | require MRO::Compat; |
57 | constant->import( OLD_MRO => 1 ); |
296248c3 |
58 | |
59 | # |
60 | # Yes, I know this is a rather PHP-ish name, but please first read |
61 | # https://metacpan.org/source/BOBTFISH/MRO-Compat-0.12/lib/MRO/Compat.pm#L363-368 |
62 | # |
63 | # Even if we are using Class::C3::XS it still won't work, as doing |
64 | # defined( *{ "SubClass::"->{$_} }{CODE} ) |
65 | # will set pkg_gen to the same value for SubClass and *ALL PARENTS* |
66 | # |
67 | *DBIx::Class::_Util::get_real_pkg_gen = sub ($) { |
68 | require Digest::MD5; |
69 | require Math::BigInt; |
70 | |
71 | # the non-assign-unless-there-is-a-hash is deliberate |
72 | ( $mro_recursor_stack->{cache} || {} )->{$_[0]}{gen} ||= ( |
73 | Math::BigInt->new( '0x' . ( Digest::MD5::md5_hex( join "\0", map { |
74 | |
75 | ( $mro_recursor_stack->{cache} || {} )->{$_}{methlist} ||= do { |
76 | |
77 | my $class = $_; |
296248c3 |
78 | no strict 'refs'; |
1c179556 |
79 | |
80 | # RV to be hashed up and turned into a number |
81 | join "\0", ( |
82 | $class, |
296248c3 |
83 | map |
1c179556 |
84 | {( |
85 | # stringification should be sufficient, ignore names/refaddr entirely |
86 | $_, |
87 | attributes::get( $_ ), |
88 | )} |
296248c3 |
89 | map |
1c179556 |
90 | {( |
91 | # skip dummy C::C3 helper crefs |
92 | ! ( ( $Class::C3::MRO{$class} || {} )->{methods}{$_} ) |
93 | and |
296248c3 |
94 | ( |
95 | ref(\ "${class}::"->{$_} ) ne 'GLOB' |
96 | or |
97 | defined( *{ "${class}::"->{$_} }{CODE} ) |
98 | ) |
1c179556 |
99 | ) |
296248c3 |
100 | ? ( \&{"${class}::$_"} ) |
101 | : () |
102 | } |
103 | keys %{ "${class}::" } |
1c179556 |
104 | ); |
296248c3 |
105 | } |
d01688cc |
106 | } ( |
107 | |
108 | @{ |
109 | ( $mro_recursor_stack->{cache} || {} )->{$_[0]}{linear_isa} |
110 | ||= |
111 | mro::get_linear_isa($_[0]) |
112 | }, |
113 | |
114 | (( |
115 | ( $mro_recursor_stack->{cache} || {} )->{$_[0]}{is_universal} |
116 | ||= |
117 | mro::is_universal($_[0]) |
118 | ) ? () : @{ |
119 | ( $mro_recursor_stack->{cache} || {} )->{UNIVERSAL}{linear_isa} |
120 | ||= |
121 | mro::get_linear_isa("UNIVERSAL") |
122 | } ), |
123 | |
124 | ) ) ) ) |
296248c3 |
125 | ); |
126 | }; |
37873f78 |
127 | } |
128 | else { |
129 | require mro; |
130 | constant->import( OLD_MRO => 0 ); |
296248c3 |
131 | *DBIx::Class::_Util::get_real_pkg_gen = \&mro::get_pkg_gen; |
37873f78 |
132 | } |
4b1b44c1 |
133 | |
134 | # Both of these are no longer used for anything. However bring |
135 | # them back after they were purged in 08a8d8f1, as there appear |
136 | # to be outfits with *COPY PASTED* pieces of lib/DBIx/Class/Storage/* |
137 | # in their production codebases. There is no point in breaking these |
138 | # if whatever they used actually continues to work |
139 | my $warned; |
140 | my $sigh = sub { |
141 | |
142 | require Carp; |
143 | my $cluck = "The @{[ (caller(1))[3] ]} constant is no more - adjust your code" . Carp::longmess(); |
144 | |
145 | warn $cluck unless $warned->{$cluck}++; |
146 | |
147 | 0; |
148 | }; |
149 | sub DBICTEST () { &$sigh } |
150 | sub PEEPEENESS () { &$sigh } |
37873f78 |
151 | } |
152 | |
3605497b |
153 | use constant SPURIOUS_VERSION_CHECK_WARNINGS => ( DBIx::Class::_ENV_::PERL_VERSION < 5.010 ? 1 : 0); |
154 | |
841efcb3 |
155 | # FIXME - this is not supposed to be here |
156 | # Carp::Skip to the rescue soon |
157 | use DBIx::Class::Carp '^DBIx::Class|^DBICTest'; |
158 | |
d7d45bdc |
159 | use B (); |
841efcb3 |
160 | use Carp 'croak'; |
d7d45bdc |
161 | use Storable 'nfreeze'; |
3d56e026 |
162 | use Scalar::Util qw(weaken blessed reftype refaddr); |
e85eb407 |
163 | use Sub::Quote qw(qsub); |
514b84f6 |
164 | use Sub::Name (); |
296248c3 |
165 | use attributes (); |
7f9a3f70 |
166 | |
1c30a2e4 |
167 | # Already correctly prototyped: perlbrew exec perl -MStorable -e 'warn prototype \&Storable::dclone' |
168 | BEGIN { *deep_clone = \&Storable::dclone } |
169 | |
b1dbf716 |
170 | use base 'Exporter'; |
3705e3b2 |
171 | our @EXPORT_OK = qw( |
d634850b |
172 | sigwarn_silencer modver_gt_or_eq modver_gt_or_eq_and_lt |
77c3a5dc |
173 | fail_on_internal_wantarray fail_on_internal_call |
296248c3 |
174 | refdesc refcount hrefaddr set_subname describe_class_methods |
ddcc02d1 |
175 | scope_guard detected_reinvoked_destructor |
293cb2f1 |
176 | true false |
10be570e |
177 | is_exception dbic_internal_try visit_namespaces |
178 | quote_sub qsub perlstring serialize deep_clone dump_value uniq |
439a7283 |
179 | parent_dir mkdir_p |
facd0e8e |
180 | UNRESOLVABLE_CONDITION |
3705e3b2 |
181 | ); |
052a832c |
182 | |
facd0e8e |
183 | use constant UNRESOLVABLE_CONDITION => \ '1 = 0'; |
184 | |
e85eb407 |
185 | # Override forcing no_defer, and adding naming consistency checks |
dc715747 |
186 | our %refs_closed_over_by_quote_sub_installed_crefs; |
e85eb407 |
187 | sub quote_sub { |
9642350a |
188 | Carp::confess( "Anonymous quoting not supported by the DBIC quote_sub override - supply a sub name" ) if |
e85eb407 |
189 | @_ < 2 |
190 | or |
191 | ! defined $_[1] |
192 | or |
193 | length ref $_[1] |
194 | ; |
195 | |
9642350a |
196 | Carp::confess( "The DBIC quote_sub override expects sub name '$_[0]' to be fully qualified" ) |
197 | unless (my $stash) = $_[0] =~ /^(.+)::/; |
198 | |
199 | Carp::confess( |
200 | "The DBIC sub_quote override does not support 'no_install'" |
201 | ) if ( |
202 | $_[3] |
203 | and |
204 | $_[3]->{no_install} |
205 | ); |
e85eb407 |
206 | |
9642350a |
207 | Carp::confess( |
208 | 'The DBIC quote_sub override expects the namespace-part of sub name ' |
209 | . "'$_[0]' to match the supplied package argument '$_[3]->{package}'" |
210 | ) if ( |
e85eb407 |
211 | $_[3] |
212 | and |
213 | defined $_[3]->{package} |
214 | and |
9642350a |
215 | $stash ne $_[3]->{package} |
216 | ); |
e85eb407 |
217 | |
218 | my @caller = caller(0); |
219 | my $sq_opts = { |
220 | package => $caller[0], |
221 | hints => $caller[8], |
222 | warning_bits => $caller[9], |
223 | hintshash => $caller[10], |
224 | %{ $_[3] || {} }, |
225 | |
226 | # explicitly forced for everything |
227 | no_defer => 1, |
228 | }; |
229 | |
dc715747 |
230 | weaken ( |
231 | # just use a growing counter, no need to perform neither compaction |
232 | # nor any special ithread-level handling |
233 | $refs_closed_over_by_quote_sub_installed_crefs |
234 | { scalar keys %refs_closed_over_by_quote_sub_installed_crefs } |
235 | = $_ |
236 | ) for grep { |
237 | length ref $_ |
238 | and |
239 | ( |
240 | ! DBIx::Class::_ENV_::BROKEN_WEAK_SCALARREF_VALUES |
241 | or |
242 | ref $_ ne 'SCALAR' |
243 | ) |
244 | } values %{ $_[2] || {} }; |
245 | |
9642350a |
246 | Sub::Quote::quote_sub( $_[0], $_[1], $_[2]||{}, $sq_opts ); |
e85eb407 |
247 | } |
248 | |
bf302897 |
249 | sub sigwarn_silencer ($) { |
052a832c |
250 | my $pattern = shift; |
251 | |
252 | croak "Expecting a regexp" if ref $pattern ne 'Regexp'; |
253 | |
254 | my $orig_sig_warn = $SIG{__WARN__} || sub { CORE::warn(@_) }; |
255 | |
256 | return sub { &$orig_sig_warn unless $_[0] =~ $pattern }; |
257 | } |
b1dbf716 |
258 | |
01b25f12 |
259 | sub perlstring ($) { q{"}. quotemeta( shift ). q{"} }; |
260 | |
3d56e026 |
261 | sub hrefaddr ($) { sprintf '0x%x', &refaddr||0 } |
8433421f |
262 | |
263 | sub refdesc ($) { |
264 | croak "Expecting a reference" if ! length ref $_[0]; |
265 | |
266 | # be careful not to trigger stringification, |
267 | # reuse @_ as a scratch-pad |
268 | sprintf '%s%s(0x%x)', |
269 | ( defined( $_[1] = blessed $_[0]) ? "$_[1]=" : '' ), |
270 | reftype $_[0], |
3d56e026 |
271 | refaddr($_[0]), |
8433421f |
272 | ; |
273 | } |
bf302897 |
274 | |
275 | sub refcount ($) { |
dac7972a |
276 | croak "Expecting a reference" if ! length ref $_[0]; |
277 | |
dac7972a |
278 | # No tempvars - must operate on $_[0], otherwise the pad |
279 | # will count as an extra ref |
280 | B::svref_2object($_[0])->REFCNT; |
281 | } |
282 | |
10be570e |
283 | sub visit_namespaces { |
284 | my $args = { (ref $_[0]) ? %{$_[0]} : @_ }; |
285 | |
286 | my $visited_count = 1; |
287 | |
288 | # A package and a namespace are subtly different things |
289 | $args->{package} ||= 'main'; |
290 | $args->{package} = 'main' if $args->{package} =~ /^ :: (?: main )? $/x; |
291 | $args->{package} =~ s/^:://; |
292 | |
293 | if ( $args->{action}->($args->{package}) ) { |
294 | my $ns = |
295 | ( ($args->{package} eq 'main') ? '' : $args->{package} ) |
296 | . |
297 | '::' |
298 | ; |
299 | |
300 | $visited_count += visit_namespaces( %$args, package => $_ ) for |
301 | grep |
302 | # this happens sometimes on %:: traversal |
303 | { $_ ne '::main' } |
304 | map |
305 | { $_ =~ /^(.+?)::$/ ? "$ns$1" : () } |
306 | do { no strict 'refs'; keys %$ns } |
307 | ; |
308 | } |
309 | |
310 | $visited_count; |
311 | } |
312 | |
514b84f6 |
313 | # FIXME In another life switch this to a polyfill like the one in namespace::clean |
314 | sub set_subname ($$) { |
315 | |
316 | # fully qualify name |
317 | splice @_, 0, 1, caller(0) . "::$_[0]" |
318 | if $_[0] !~ /::|'/; |
319 | |
320 | &Sub::Name::subname; |
321 | } |
322 | |
b34d9331 |
323 | sub serialize ($) { |
b34d9331 |
324 | local $Storable::canonical = 1; |
d7d45bdc |
325 | nfreeze($_[0]); |
b34d9331 |
326 | } |
327 | |
10be570e |
328 | sub uniq { |
329 | my( %seen, $seen_undef, $numeric_preserving_copy ); |
330 | grep { not ( |
331 | defined $_ |
332 | ? $seen{ $numeric_preserving_copy = $_ }++ |
333 | : $seen_undef++ |
334 | ) } @_; |
335 | } |
336 | |
2d5ac3cf |
337 | my $dd_obj; |
8fc4291e |
338 | sub dump_value ($) { |
339 | local $Data::Dumper::Indent = 1 |
340 | unless defined $Data::Dumper::Indent; |
341 | |
2d5ac3cf |
342 | my $dump_str = ( |
8fc4291e |
343 | $dd_obj |
344 | ||= |
345 | do { |
346 | require Data::Dumper; |
347 | my $d = Data::Dumper->new([]) |
348 | ->Purity(0) |
349 | ->Pad('') |
350 | ->Useqq(1) |
351 | ->Terse(1) |
352 | ->Freezer('') |
353 | ->Quotekeys(0) |
354 | ->Bless('bless') |
355 | ->Pair(' => ') |
356 | ->Sortkeys(1) |
357 | ->Deparse(1) |
358 | ; |
359 | |
360 | $d->Sparseseen(1) if modver_gt_or_eq ( |
361 | 'Data::Dumper', '2.136' |
362 | ); |
363 | |
364 | $d; |
365 | } |
366 | )->Values([$_[0]])->Dump; |
367 | |
368 | $dd_obj->Reset->Values([]); |
369 | |
370 | $dump_str; |
371 | } |
372 | |
293cb2f1 |
373 | ### |
374 | ### This is *NOT* boolean.pm - deliberately not using a singleton |
375 | ### |
376 | { |
377 | package # hide from pause |
378 | DBIx::Class::_Util::_Bool; |
379 | use overload |
380 | bool => sub { ${$_[0]} }, |
381 | fallback => 1, |
382 | ; |
383 | } |
384 | sub true () { my $x = 1; bless \$x, "DBIx::Class::_Util::_Bool" } |
385 | sub false () { my $x = 0; bless \$x, "DBIx::Class::_Util::_Bool" } |
386 | |
bbf6a9a5 |
387 | sub scope_guard (&) { |
388 | croak 'Calling scope_guard() in void context makes no sense' |
389 | if ! defined wantarray; |
390 | |
391 | # no direct blessing of coderefs - DESTROY is buggy on those |
392 | bless [ $_[0] ], 'DBIx::Class::_Util::ScopeGuard'; |
393 | } |
394 | { |
395 | package # |
396 | DBIx::Class::_Util::ScopeGuard; |
397 | |
398 | sub DESTROY { |
399 | &DBIx::Class::_Util::detected_reinvoked_destructor; |
400 | |
401 | local $@ if DBIx::Class::_ENV_::UNSTABLE_DOLLARAT; |
402 | |
403 | eval { |
404 | $_[0]->[0]->(); |
405 | 1; |
118b2c36 |
406 | } |
407 | or |
408 | Carp::cluck( |
409 | "Execution of scope guard $_[0] resulted in the non-trappable exception:\n\n$@" |
410 | ); |
bbf6a9a5 |
411 | } |
412 | } |
413 | |
414 | |
841efcb3 |
415 | sub is_exception ($) { |
416 | my $e = $_[0]; |
417 | |
35cf7d1a |
418 | # FIXME |
a0414138 |
419 | # this is not strictly correct - an eval setting $@ to undef |
420 | # is *not* the same as an eval setting $@ to '' |
421 | # but for the sake of simplicity assume the following for |
422 | # the time being |
423 | return 0 unless defined $e; |
424 | |
841efcb3 |
425 | my ($not_blank, $suberror); |
426 | { |
5c33c8be |
427 | local $SIG{__DIE__} if $SIG{__DIE__}; |
841efcb3 |
428 | local $@; |
429 | eval { |
d52c4a75 |
430 | # The ne() here is deliberate - a plain length($e), or worse "$e" ne |
431 | # will entirely obviate the need for the encolsing eval{}, as the |
432 | # condition we guard against is a missing fallback overload |
433 | $not_blank = ( $e ne '' ); |
841efcb3 |
434 | 1; |
435 | } or $suberror = $@; |
436 | } |
437 | |
438 | if (defined $suberror) { |
439 | if (length (my $class = blessed($e) )) { |
440 | carp_unique( sprintf( |
9bea2000 |
441 | 'External exception class %s implements partial (broken) overloading ' |
442 | . 'preventing its instances from being used in simple ($x eq $y) ' |
841efcb3 |
443 | . 'comparisons. Given Perl\'s "globally cooperative" exception ' |
444 | . 'handling this type of brokenness is extremely dangerous on ' |
445 | . 'exception objects, as it may (and often does) result in silent ' |
446 | . '"exception substitution". DBIx::Class tries to work around this ' |
447 | . 'as much as possible, but other parts of your software stack may ' |
448 | . 'not be even aware of this. Please submit a bugreport against the ' |
449 | . 'distribution containing %s and in the meantime apply a fix similar ' |
450 | . 'to the one shown at %s, in order to ensure your exception handling ' |
451 | . 'is saner application-wide. What follows is the actual error text ' |
452 | . "as generated by Perl itself:\n\n%s\n ", |
9bea2000 |
453 | $class, |
841efcb3 |
454 | $class, |
455 | 'http://v.gd/DBIC_overload_tempfix/', |
456 | $suberror, |
457 | )); |
458 | |
459 | # workaround, keeps spice flowing |
d52c4a75 |
460 | $not_blank = !!( length $e ); |
841efcb3 |
461 | } |
462 | else { |
463 | # not blessed yet failed the 'ne'... this makes 0 sense... |
464 | # just throw further |
465 | die $suberror |
466 | } |
467 | } |
84e4e006 |
468 | elsif ( |
469 | # a ref evaluating to '' is definitively a "null object" |
470 | ( not $not_blank ) |
471 | and |
472 | length( my $class = ref $e ) |
473 | ) { |
474 | carp_unique( sprintf( |
475 | "Objects of external exception class '%s' stringify to '' (the " |
476 | . 'empty string), implementing the so called null-object-pattern. ' |
477 | . 'Given Perl\'s "globally cooperative" exception handling using this ' |
478 | . 'class of exceptions is extremely dangerous, as it may (and often ' |
479 | . 'does) result in silent discarding of errors. DBIx::Class tries to ' |
480 | . 'work around this as much as possible, but other parts of your ' |
481 | . 'software stack may not be even aware of the problem. Please submit ' |
35cf7d1a |
482 | . 'a bugreport against the distribution containing %s', |
84e4e006 |
483 | |
484 | ($class) x 2, |
485 | )); |
486 | |
487 | $not_blank = 1; |
488 | } |
841efcb3 |
489 | |
490 | return $not_blank; |
491 | } |
492 | |
3d56e026 |
493 | { |
ddcc02d1 |
494 | my $callstack_state; |
495 | |
496 | # Recreate the logic of try(), while reusing the catch()/finally() as-is |
497 | # |
498 | # FIXME: We need to move away from Try::Tiny entirely (way too heavy and |
499 | # yes, shows up ON TOP of profiles) but this is a batle for another maint |
500 | sub dbic_internal_try (&;@) { |
501 | |
502 | my $try_cref = shift; |
503 | my $catch_cref = undef; # apparently this is a thing... https://rt.perl.org/Public/Bug/Display.html?id=119311 |
504 | |
505 | for my $arg (@_) { |
506 | |
507 | if( ref($arg) eq 'Try::Tiny::Catch' ) { |
508 | |
509 | croak 'dbic_internal_try() may not be followed by multiple catch() blocks' |
510 | if $catch_cref; |
511 | |
512 | $catch_cref = $$arg; |
513 | } |
514 | elsif ( ref($arg) eq 'Try::Tiny::Finally' ) { |
515 | croak 'dbic_internal_try() does not support finally{}'; |
516 | } |
517 | else { |
518 | croak( |
519 | 'dbic_internal_try() encountered an unexpected argument ' |
520 | . "'@{[ defined $arg ? $arg : 'UNDEF' ]}' - perhaps " |
521 | . 'a missing semi-colon before or ' # trailing space important |
522 | ); |
523 | } |
524 | } |
525 | |
526 | my $wantarray = wantarray; |
527 | my $preexisting_exception = $@; |
528 | |
529 | my @ret; |
530 | my $all_good = eval { |
531 | $@ = $preexisting_exception; |
532 | |
533 | local $callstack_state->{in_internal_try} = 1 |
534 | unless $callstack_state->{in_internal_try}; |
535 | |
536 | # always unset - someone may have snuck it in |
5c33c8be |
537 | local $SIG{__DIE__} if $SIG{__DIE__}; |
ddcc02d1 |
538 | |
539 | if( $wantarray ) { |
540 | @ret = $try_cref->(); |
541 | } |
542 | elsif( defined $wantarray ) { |
543 | $ret[0] = $try_cref->(); |
544 | } |
545 | else { |
546 | $try_cref->(); |
547 | } |
548 | |
549 | 1; |
550 | }; |
551 | |
552 | my $exception = $@; |
553 | $@ = $preexisting_exception; |
554 | |
555 | if ( $all_good ) { |
556 | return $wantarray ? @ret : $ret[0] |
557 | } |
558 | elsif ( $catch_cref ) { |
559 | for ( $exception ) { |
560 | return $catch_cref->($exception); |
561 | } |
562 | } |
563 | |
564 | return; |
565 | } |
566 | |
567 | sub in_internal_try { !! $callstack_state->{in_internal_try} } |
568 | } |
569 | |
570 | { |
3d56e026 |
571 | my $destruction_registry = {}; |
572 | |
04c1a070 |
573 | sub DBIx::Class::__Util_iThreads_handler__::CLONE { |
d098704f |
574 | %$destruction_registry = map { |
575 | (defined $_) |
576 | ? ( refaddr($_) => $_ ) |
577 | : () |
578 | } values %$destruction_registry; |
d52fc26d |
579 | |
d098704f |
580 | weaken($_) for values %$destruction_registry; |
29211e03 |
581 | |
d52fc26d |
582 | # Dummy NEXTSTATE ensuring the all temporaries on the stack are garbage |
583 | # collected before leaving this scope. Depending on the code above, this |
584 | # may very well be just a preventive measure guarding future modifications |
585 | undef; |
3d56e026 |
586 | } |
587 | |
588 | # This is almost invariably invoked from within DESTROY |
589 | # throwing exceptions won't work |
e1d9e578 |
590 | sub detected_reinvoked_destructor { |
3d56e026 |
591 | |
592 | # quick "garbage collection" pass - prevents the registry |
593 | # from slowly growing with a bunch of undef-valued keys |
594 | defined $destruction_registry->{$_} or delete $destruction_registry->{$_} |
595 | for keys %$destruction_registry; |
596 | |
e1d9e578 |
597 | if (! length ref $_[0]) { |
598 | printf STDERR '%s() expects a blessed reference %s', |
3d56e026 |
599 | (caller(0))[3], |
600 | Carp::longmess, |
601 | ; |
602 | return undef; # don't know wtf to do |
603 | } |
e1d9e578 |
604 | elsif (! defined $destruction_registry->{ my $addr = refaddr($_[0]) } ) { |
3d56e026 |
605 | weaken( $destruction_registry->{$addr} = $_[0] ); |
606 | return 0; |
607 | } |
608 | else { |
609 | carp_unique ( sprintf ( |
610 | 'Preventing *MULTIPLE* DESTROY() invocations on %s - an *EXTREMELY ' |
611 | . 'DANGEROUS* condition which is *ALMOST CERTAINLY GLOBAL* within your ' |
612 | . 'application, affecting *ALL* classes without active protection against ' |
613 | . 'this. Diagnose and fix the root cause ASAP!!!%s', |
614 | refdesc $_[0], |
615 | ( ( $INC{'Devel/StackTrace.pm'} and ! do { local $@; eval { Devel::StackTrace->VERSION(2) } } ) |
616 | ? " (likely culprit Devel::StackTrace\@@{[ Devel::StackTrace->VERSION ]} found in %INC, http://is.gd/D_ST_refcap)" |
617 | : '' |
618 | ) |
619 | )); |
620 | |
621 | return 1; |
622 | } |
623 | } |
624 | } |
625 | |
7302b3e0 |
626 | my $module_name_rx = qr/ \A [A-Z_a-z] [0-9A-Z_a-z]* (?: :: [0-9A-Z_a-z]+ )* \z /x; |
627 | my $ver_rx = qr/ \A [0-9]+ (?: \. [0-9]+ )* (?: \_ [0-9]+ )* \z /x; |
628 | |
bf302897 |
629 | sub modver_gt_or_eq ($$) { |
b1dbf716 |
630 | my ($mod, $ver) = @_; |
631 | |
632 | croak "Nonsensical module name supplied" |
7302b3e0 |
633 | if ! defined $mod or $mod !~ $module_name_rx; |
b1dbf716 |
634 | |
635 | croak "Nonsensical minimum version supplied" |
7302b3e0 |
636 | if ! defined $ver or $ver !~ $ver_rx; |
637 | |
638 | no strict 'refs'; |
639 | my $ver_cache = ${"${mod}::__DBIC_MODULE_VERSION_CHECKS__"} ||= ( $mod->VERSION |
640 | ? {} |
641 | : croak "$mod does not seem to provide a version (perhaps it never loaded)" |
642 | ); |
643 | |
644 | ! defined $ver_cache->{$ver} |
645 | and |
646 | $ver_cache->{$ver} = do { |
b1dbf716 |
647 | |
7302b3e0 |
648 | local $SIG{__WARN__} = sigwarn_silencer( qr/\Qisn't numeric in subroutine entry/ ) |
649 | if SPURIOUS_VERSION_CHECK_WARNINGS; |
b1dbf716 |
650 | |
5c33c8be |
651 | local $SIG{__DIE__} if $SIG{__DIE__}; |
7302b3e0 |
652 | local $@; |
7302b3e0 |
653 | eval { $mod->VERSION($ver) } ? 1 : 0; |
654 | }; |
56270bba |
655 | |
7302b3e0 |
656 | $ver_cache->{$ver}; |
b1dbf716 |
657 | } |
658 | |
d634850b |
659 | sub modver_gt_or_eq_and_lt ($$$) { |
660 | my ($mod, $v_ge, $v_lt) = @_; |
661 | |
662 | croak "Nonsensical maximum version supplied" |
7302b3e0 |
663 | if ! defined $v_lt or $v_lt !~ $ver_rx; |
d634850b |
664 | |
665 | return ( |
666 | modver_gt_or_eq($mod, $v_ge) |
667 | and |
668 | ! modver_gt_or_eq($mod, $v_lt) |
669 | ) ? 1 : 0; |
670 | } |
671 | |
296248c3 |
672 | { |
673 | # FIXME - should be a private my(), but I'm too uncertain whether |
674 | # all bases are covered |
675 | our $describe_class_query_cache; |
676 | |
677 | sub describe_class_methods { |
1cf2ad8b |
678 | my ($class, $requested_mro) = @_; |
296248c3 |
679 | |
680 | croak "Expecting a class name" |
5e67be26 |
681 | if not defined $class or $class !~ $module_name_rx; |
296248c3 |
682 | |
1cf2ad8b |
683 | $requested_mro ||= mro::get_mro($class); |
684 | |
685 | # mro::set_mro() does not bump pkg_gen - WHAT THE FUCK?! |
686 | my $query_cache_key = "$class|$requested_mro"; |
687 | |
688 | my $stack_cache_key = |
689 | ( mro::get_mro($class) eq $requested_mro ) |
690 | ? $class |
691 | : $query_cache_key |
692 | ; |
693 | |
296248c3 |
694 | # use a cache on old MRO, since while we are recursing in this function |
695 | # nothing can possibly change (the speedup is immense) |
696 | # (yes, people could be tie()ing the stash and adding methods on access |
697 | # but there is a limit to how much crazy can be supported here) |
698 | # |
699 | # we use the cache for linear_isa lookups on new MRO as well - it adds |
700 | # a *tiny* speedup, and simplifies the code a lot |
701 | # |
702 | local $mro_recursor_stack->{cache} = {} |
703 | unless $mro_recursor_stack->{cache}; |
704 | |
705 | my $my_gen = 0; |
706 | |
d01688cc |
707 | $my_gen += get_real_pkg_gen($_) for ( my @full_ISA = ( |
708 | |
709 | @{ |
1cf2ad8b |
710 | $mro_recursor_stack->{cache}{$stack_cache_key}{linear_isa} |
296248c3 |
711 | ||= |
1cf2ad8b |
712 | mro::get_linear_isa($class, $requested_mro) |
d01688cc |
713 | }, |
714 | |
715 | (( |
716 | $mro_recursor_stack->{cache}{$class}{is_universal} |
717 | ||= |
718 | mro::is_universal($class) |
719 | ) ? () : @{ |
720 | $mro_recursor_stack->{cache}{UNIVERSAL}{linear_isa} |
721 | ||= |
722 | mro::get_linear_isa("UNIVERSAL") |
723 | }), |
724 | |
725 | )); |
296248c3 |
726 | |
1cf2ad8b |
727 | my $slot = $describe_class_query_cache->{$query_cache_key} ||= {}; |
296248c3 |
728 | |
729 | unless ( ($slot->{cumulative_gen}||0) == $my_gen ) { |
730 | |
d01688cc |
731 | # remove ourselves from ISA |
732 | shift @full_ISA; |
733 | |
296248c3 |
734 | # reset |
735 | %$slot = ( |
736 | class => $class, |
d01688cc |
737 | isa => [ |
1cf2ad8b |
738 | @{ $mro_recursor_stack->{cache}{$stack_cache_key}{linear_isa} } |
739 | [ 1 .. $#{$mro_recursor_stack->{cache}{$stack_cache_key}{linear_isa}} ] |
d01688cc |
740 | ], |
296248c3 |
741 | mro => { |
1cf2ad8b |
742 | type => $requested_mro, |
743 | is_c3 => ( ($requested_mro eq 'c3') ? 1 : 0 ), |
296248c3 |
744 | }, |
745 | cumulative_gen => $my_gen, |
746 | ); |
296248c3 |
747 | |
296248c3 |
748 | # ensure the cache is populated for the parents, code below can then |
749 | # efficiently operate over the query_cache directly |
d01688cc |
750 | describe_class_methods($_) for reverse @full_ISA; |
296248c3 |
751 | |
296248c3 |
752 | no strict 'refs'; |
753 | |
754 | # combine full ISA-order inherited and local method list into a |
755 | # "shadowing stack" |
756 | |
757 | ( |
085dbdd6 |
758 | unshift @{ $slot->{methods}{$_->{name}} }, $_ |
296248c3 |
759 | |
760 | and |
761 | |
085dbdd6 |
762 | ( |
763 | $_->{via_class} ne $class |
764 | or |
765 | $slot->{methods_defined_in_class}{$_->{name}} = $_ |
766 | ) |
296248c3 |
767 | |
768 | and |
769 | |
770 | @{ $slot->{methods}{$_->{name}} } > 1 |
771 | |
772 | and |
773 | |
774 | $slot->{methods_with_supers}{$_->{name}} = $slot->{methods}{$_->{name}} |
775 | |
776 | ) for ( |
777 | |
d01688cc |
778 | # what describe_class_methods for @full_ISA produced above |
085dbdd6 |
779 | ( map { values %{ |
780 | $describe_class_query_cache->{$_}{methods_defined_in_class} || {} |
1cf2ad8b |
781 | } } map { "$_|" . mro::get_mro($_) } reverse @full_ISA ), |
296248c3 |
782 | |
783 | # our own non-cleaned subs + their attributes |
784 | ( map { |
785 | ( |
1c179556 |
786 | # need to account for dummy helper crefs under OLD_MRO |
296248c3 |
787 | ( |
1c179556 |
788 | ! DBIx::Class::_ENV_::OLD_MRO |
296248c3 |
789 | or |
1c179556 |
790 | ! ( ( $Class::C3::MRO{$class} || {} )->{methods}{$_} ) |
296248c3 |
791 | ) |
792 | and |
1c179556 |
793 | # these 2 OR-ed checks are sufficient for 5.10+ |
296248c3 |
794 | ( |
1c179556 |
795 | ref(\ "${class}::"->{$_} ) ne 'GLOB' |
296248c3 |
796 | or |
1c179556 |
797 | defined( *{ "${class}::"->{$_} }{CODE} ) |
296248c3 |
798 | ) |
799 | ) ? { |
800 | via_class => $class, |
801 | name => $_, |
5e67be26 |
802 | attributes => { |
803 | map { $_ => 1 } attributes::get( \&{"${class}::${_}"} ) |
804 | }, |
296248c3 |
805 | } |
806 | : () |
807 | } keys %{"${class}::"} ) |
808 | ); |
809 | |
810 | |
811 | # recalculate the pkg_gen on newer perls under Taint mode, |
812 | # because of shit like: |
813 | # perl -T -Mmro -e 'package Foo; sub bar {}; defined( *{ "Foo::"->{bar}}{CODE} ) and warn mro::get_pkg_gen("Foo") for (1,2,3)' |
814 | # |
815 | if ( |
816 | ! DBIx::Class::_ENV_::OLD_MRO |
817 | and |
818 | ${^TAINT} |
819 | ) { |
820 | |
821 | $slot->{cumulative_gen} = 0; |
822 | $slot->{cumulative_gen} += get_real_pkg_gen($_) |
d01688cc |
823 | for $class, @full_ISA; |
296248c3 |
824 | } |
825 | } |
826 | |
827 | # RV |
828 | +{ %$slot }; |
829 | } |
830 | } |
831 | |
e3be2b6f |
832 | |
833 | # |
834 | # Why not just use some higher-level module or at least File::Spec here? |
835 | # Because: |
836 | # 1) This is a *very* rarely used function, and the deptree is large |
837 | # enough already as it is |
838 | # |
839 | # 2) (more importantly) Our tooling is utter shit in this area. There |
840 | # is no comprehensive support for UNC paths in PathTools and there |
841 | # are also various small bugs in representation across different |
842 | # path-manipulation CPAN offerings. |
843 | # |
844 | # Since this routine is strictly used for logical path processing (it |
845 | # *must* be able to work with not-yet-existing paths), use this seemingly |
846 | # simple but I *think* complete implementation to feed to other consumers |
847 | # |
848 | # If bugs are ever uncovered in this routine, *YOU ARE URGED TO RESIST* |
849 | # the impulse to bring in an external dependency. During runtime there |
850 | # is exactly one spot that could potentially maybe once in a blue moon |
851 | # use this function. Keep it lean. |
852 | # |
853 | sub parent_dir ($) { |
854 | ( $_[0] =~ m{ [\/\\] ( \.{0,2} ) ( [\/\\]* ) \z }x ) |
855 | ? ( |
856 | $_[0] |
857 | . |
858 | ( ( length($1) and ! length($2) ) ? '/' : '' ) |
859 | . |
860 | '../' |
861 | ) |
862 | : ( |
863 | require File::Spec |
864 | and |
865 | File::Spec->catpath ( |
866 | ( File::Spec->splitpath( "$_[0]" ) )[0,1], |
867 | '/', |
868 | ) |
869 | ) |
870 | ; |
871 | } |
872 | |
439a7283 |
873 | sub mkdir_p ($) { |
874 | require File::Path; |
875 | # do not ask for a recent version, use 1.x API calls |
876 | File::Path::mkpath([ "$_[0]" ]); # File::Path does not like objects |
877 | } |
878 | |
e3be2b6f |
879 | |
a9da9b6a |
880 | { |
881 | my $list_ctx_ok_stack_marker; |
882 | |
e89c7968 |
883 | sub fail_on_internal_wantarray () { |
a9da9b6a |
884 | return if $list_ctx_ok_stack_marker; |
885 | |
886 | if (! defined wantarray) { |
887 | croak('fail_on_internal_wantarray() needs a tempvar to save the stack marker guard'); |
888 | } |
889 | |
890 | my $cf = 1; |
821edc09 |
891 | while ( ( (CORE::caller($cf+1))[3] || '' ) =~ / :: (?: |
a9da9b6a |
892 | |
893 | # these are public API parts that alter behavior on wantarray |
894 | search | search_related | slice | search_literal |
895 | |
896 | | |
897 | |
898 | # these are explicitly prefixed, since we only recognize them as valid |
899 | # escapes when they come from the guts of CDBICompat |
900 | CDBICompat .*? :: (?: search_where | retrieve_from_sql | retrieve_all ) |
901 | |
902 | ) $/x ) { |
903 | $cf++; |
904 | } |
905 | |
e89c7968 |
906 | my ($fr, $want, $argdesc); |
907 | { |
908 | package DB; |
821edc09 |
909 | $fr = [ CORE::caller($cf) ]; |
910 | $want = ( CORE::caller($cf-1) )[5]; |
e89c7968 |
911 | $argdesc = ref $DB::args[0] |
912 | ? DBIx::Class::_Util::refdesc($DB::args[0]) |
913 | : 'non ' |
914 | ; |
915 | }; |
916 | |
a9da9b6a |
917 | if ( |
e89c7968 |
918 | $want and $fr->[0] =~ /^(?:DBIx::Class|DBICx::)/ |
a9da9b6a |
919 | ) { |
a9da9b6a |
920 | DBIx::Class::Exception->throw( sprintf ( |
e89c7968 |
921 | "Improper use of %s instance in list context at %s line %d\n\n Stacktrace starts", |
922 | $argdesc, @{$fr}[1,2] |
a9da9b6a |
923 | ), 'with_stacktrace'); |
924 | } |
925 | |
d098704f |
926 | weaken( $list_ctx_ok_stack_marker = my $mark = [] ); |
927 | |
a9da9b6a |
928 | $mark; |
929 | } |
930 | } |
931 | |
77c3a5dc |
932 | sub fail_on_internal_call { |
933 | my ($fr, $argdesc); |
934 | { |
935 | package DB; |
821edc09 |
936 | $fr = [ CORE::caller(1) ]; |
77c3a5dc |
937 | $argdesc = ref $DB::args[0] |
938 | ? DBIx::Class::_Util::refdesc($DB::args[0]) |
e5053694 |
939 | : ( $DB::args[0] . '' ) |
77c3a5dc |
940 | ; |
941 | }; |
942 | |
3b020224 |
943 | my @fr2; |
944 | # need to make allowance for a proxy-yet-direct call |
945 | my $check_fr = ( |
946 | $fr->[0] eq 'DBIx::Class::ResultSourceProxy' |
947 | and |
948 | @fr2 = (CORE::caller(2)) |
949 | and |
950 | ( |
951 | ( $fr->[3] =~ /([^:])+$/ )[0] |
952 | eq |
953 | ( $fr2[3] =~ /([^:])+$/ )[0] |
954 | ) |
955 | ) |
956 | ? \@fr2 |
957 | : $fr |
958 | ; |
959 | |
77c3a5dc |
960 | if ( |
961 | $argdesc |
962 | and |
3b020224 |
963 | $check_fr->[0] =~ /^(?:DBIx::Class|DBICx::)/ |
77c3a5dc |
964 | and |
3b020224 |
965 | $check_fr->[1] !~ /\b(?:CDBICompat|ResultSetProxy)\b/ # no point touching there |
77c3a5dc |
966 | ) { |
967 | DBIx::Class::Exception->throw( sprintf ( |
e5053694 |
968 | "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 |
969 | $fr->[3], $argdesc, @{$fr}[1,2], ( $fr->[6] || do { |
970 | require B::Deparse; |
971 | no strict 'refs'; |
972 | B::Deparse->new->coderef2text(\&{$fr->[3]}) |
973 | }), |
974 | ), 'with_stacktrace'); |
975 | } |
976 | } |
977 | |
b1dbf716 |
978 | 1; |