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 | |
953f8eb0 |
9 | # For the love of everything that is crab-like: DO NOT reach into this |
10 | # The entire thing is really fragile and should not be screwed with |
11 | # unless absolutely and unavoidably necessary |
12 | our $__describe_class_query_cache; |
296248c3 |
13 | |
37873f78 |
14 | BEGIN { |
15 | package # hide from pause |
16 | DBIx::Class::_ENV_; |
17 | |
18 | use Config; |
19 | |
20 | use constant { |
3605497b |
21 | PERL_VERSION => "$]", |
22 | OS_NAME => "$^O", |
23 | }; |
24 | |
25 | use constant { |
37873f78 |
26 | |
27 | # but of course |
3605497b |
28 | BROKEN_FORK => (OS_NAME eq 'MSWin32') ? 1 : 0, |
37873f78 |
29 | |
3605497b |
30 | BROKEN_GOTO => ( PERL_VERSION < 5.008003 ) ? 1 : 0, |
8d73fcd4 |
31 | |
7bba735d |
32 | # perl -MScalar::Util=weaken -e 'weaken( $hash{key} = \"value" )' |
3605497b |
33 | BROKEN_WEAK_SCALARREF_VALUES => ( PERL_VERSION < 5.008003 ) ? 1 : 0, |
7bba735d |
34 | |
37873f78 |
35 | HAS_ITHREADS => $Config{useithreads} ? 1 : 0, |
36 | |
5f0174dc |
37 | TAINT_MODE => 0 + ${^TAINT}, # tri-state: 0, 1, -1 |
38 | |
3605497b |
39 | UNSTABLE_DOLLARAT => ( PERL_VERSION < 5.013002 ) ? 1 : 0, |
bbf6a9a5 |
40 | |
db83437e |
41 | ( map |
42 | # |
43 | # the "DBIC_" prefix below is crucial - this is what makes CI pick up |
44 | # all envvars without further adjusting its scripts |
45 | # DO NOT CHANGE to the more logical { $_ => !!( $ENV{"DBIC_$_"} ) } |
46 | # |
47 | { substr($_, 5) => !!( $ENV{$_} ) } |
48 | qw( |
49 | DBIC_SHUFFLE_UNORDERED_RESULTSETS |
50 | DBIC_ASSERT_NO_INTERNAL_WANTARRAY |
51 | DBIC_ASSERT_NO_INTERNAL_INDIRECT_CALLS |
534aff61 |
52 | DBIC_ASSERT_NO_ERRONEOUS_METAINSTANCE_USE |
db83437e |
53 | DBIC_STRESSTEST_UTF8_UPGRADE_GENERATED_COLLAPSER_SOURCE |
54 | DBIC_STRESSTEST_COLUMN_INFO_UNAWARE_STORAGE |
55 | ) |
56 | ), |
f45dc928 |
57 | |
37873f78 |
58 | IV_SIZE => $Config{ivsize}, |
59 | }; |
60 | |
3605497b |
61 | if ( PERL_VERSION < 5.009_005) { |
37873f78 |
62 | require MRO::Compat; |
63 | constant->import( OLD_MRO => 1 ); |
296248c3 |
64 | |
65 | # |
66 | # Yes, I know this is a rather PHP-ish name, but please first read |
67 | # https://metacpan.org/source/BOBTFISH/MRO-Compat-0.12/lib/MRO/Compat.pm#L363-368 |
68 | # |
69 | # Even if we are using Class::C3::XS it still won't work, as doing |
70 | # defined( *{ "SubClass::"->{$_} }{CODE} ) |
71 | # will set pkg_gen to the same value for SubClass and *ALL PARENTS* |
72 | # |
73 | *DBIx::Class::_Util::get_real_pkg_gen = sub ($) { |
74 | require Digest::MD5; |
75 | require Math::BigInt; |
76 | |
953f8eb0 |
77 | my $cur_class; |
78 | no strict 'refs'; |
79 | |
296248c3 |
80 | # the non-assign-unless-there-is-a-hash is deliberate |
953f8eb0 |
81 | ( $__describe_class_query_cache->{'!internal!'} || {} )->{$_[0]}{gen} ||= ( |
296248c3 |
82 | Math::BigInt->new( '0x' . ( Digest::MD5::md5_hex( join "\0", map { |
83 | |
953f8eb0 |
84 | ( $__describe_class_query_cache->{'!internal!'} || {} )->{$_}{methlist} ||= ( |
85 | |
86 | $cur_class = $_ |
296248c3 |
87 | |
953f8eb0 |
88 | and |
1c179556 |
89 | |
90 | # RV to be hashed up and turned into a number |
91 | join "\0", ( |
953f8eb0 |
92 | $cur_class, |
296248c3 |
93 | map |
1c179556 |
94 | {( |
95 | # stringification should be sufficient, ignore names/refaddr entirely |
96 | $_, |
92705f7f |
97 | do { |
98 | my @attrs; |
99 | local $@; |
100 | local $SIG{__DIE__} if $SIG{__DIE__}; |
101 | # attributes::get may throw on blessed-false crefs :/ |
102 | eval { @attrs = attributes::get( $_ ); 1 } |
103 | or warn "Unable to determine attributes of coderef $_ due to the following error: $@"; |
104 | @attrs; |
105 | }, |
1c179556 |
106 | )} |
296248c3 |
107 | map |
1c179556 |
108 | {( |
109 | # skip dummy C::C3 helper crefs |
953f8eb0 |
110 | ! ( ( $Class::C3::MRO{$cur_class} || {} )->{methods}{$_} ) |
1c179556 |
111 | and |
296248c3 |
112 | ( |
953f8eb0 |
113 | ref(\ "${cur_class}::"->{$_} ) ne 'GLOB' |
296248c3 |
114 | or |
953f8eb0 |
115 | defined( *{ "${cur_class}::"->{$_} }{CODE} ) |
296248c3 |
116 | ) |
1c179556 |
117 | ) |
953f8eb0 |
118 | ? ( \&{"${cur_class}::$_"} ) |
296248c3 |
119 | : () |
120 | } |
953f8eb0 |
121 | keys %{ "${cur_class}::" } |
122 | ) |
123 | ) |
d01688cc |
124 | } ( |
125 | |
126 | @{ |
953f8eb0 |
127 | ( $__describe_class_query_cache->{'!internal!'} || {} )->{$_[0]}{linear_isa} |
d01688cc |
128 | ||= |
129 | mro::get_linear_isa($_[0]) |
130 | }, |
131 | |
132 | (( |
953f8eb0 |
133 | ( $__describe_class_query_cache->{'!internal!'} || {} )->{$_[0]}{is_universal} |
d01688cc |
134 | ||= |
135 | mro::is_universal($_[0]) |
136 | ) ? () : @{ |
953f8eb0 |
137 | ( $__describe_class_query_cache->{'!internal!'} || {} )->{UNIVERSAL}{linear_isa} |
d01688cc |
138 | ||= |
139 | mro::get_linear_isa("UNIVERSAL") |
140 | } ), |
141 | |
142 | ) ) ) ) |
296248c3 |
143 | ); |
144 | }; |
37873f78 |
145 | } |
146 | else { |
147 | require mro; |
148 | constant->import( OLD_MRO => 0 ); |
296248c3 |
149 | *DBIx::Class::_Util::get_real_pkg_gen = \&mro::get_pkg_gen; |
37873f78 |
150 | } |
4b1b44c1 |
151 | |
152 | # Both of these are no longer used for anything. However bring |
153 | # them back after they were purged in 08a8d8f1, as there appear |
154 | # to be outfits with *COPY PASTED* pieces of lib/DBIx/Class/Storage/* |
155 | # in their production codebases. There is no point in breaking these |
156 | # if whatever they used actually continues to work |
4b1b44c1 |
157 | my $sigh = sub { |
c40b5744 |
158 | DBIx::Class::_Util::emit_loud_diag( |
159 | skip_frames => 1, |
160 | msg => "The @{[ (caller(1))[3] ]} constant is no more - adjust your code" |
161 | ); |
4b1b44c1 |
162 | |
163 | 0; |
164 | }; |
165 | sub DBICTEST () { &$sigh } |
166 | sub PEEPEENESS () { &$sigh } |
37873f78 |
167 | } |
168 | |
3605497b |
169 | use constant SPURIOUS_VERSION_CHECK_WARNINGS => ( DBIx::Class::_ENV_::PERL_VERSION < 5.010 ? 1 : 0); |
170 | |
841efcb3 |
171 | # FIXME - this is not supposed to be here |
172 | # Carp::Skip to the rescue soon |
173 | use DBIx::Class::Carp '^DBIx::Class|^DBICTest'; |
174 | |
d7d45bdc |
175 | use B (); |
841efcb3 |
176 | use Carp 'croak'; |
d7d45bdc |
177 | use Storable 'nfreeze'; |
3d56e026 |
178 | use Scalar::Util qw(weaken blessed reftype refaddr); |
514b84f6 |
179 | use Sub::Name (); |
296248c3 |
180 | use attributes (); |
7f9a3f70 |
181 | |
6de81918 |
182 | # Usually versions are not specified anywhere aside the Makefile.PL |
183 | # (writing them out in-code is extremely obnoxious) |
184 | # However without a recent enough Moo the quote_sub override fails |
185 | # in very puzzling and hard to detect ways: so add a version check |
186 | # just this once |
187 | use Sub::Quote qw(qsub); |
188 | BEGIN { Sub::Quote->VERSION('2.002002') } |
189 | |
1c30a2e4 |
190 | # Already correctly prototyped: perlbrew exec perl -MStorable -e 'warn prototype \&Storable::dclone' |
191 | BEGIN { *deep_clone = \&Storable::dclone } |
192 | |
b1dbf716 |
193 | use base 'Exporter'; |
3705e3b2 |
194 | our @EXPORT_OK = qw( |
d634850b |
195 | sigwarn_silencer modver_gt_or_eq modver_gt_or_eq_and_lt |
77c3a5dc |
196 | fail_on_internal_wantarray fail_on_internal_call |
86a432d4 |
197 | refdesc refcount hrefaddr set_subname get_subname describe_class_methods |
c40b5744 |
198 | scope_guard detected_reinvoked_destructor emit_loud_diag |
293cb2f1 |
199 | true false |
10be570e |
200 | is_exception dbic_internal_try visit_namespaces |
201 | quote_sub qsub perlstring serialize deep_clone dump_value uniq |
439a7283 |
202 | parent_dir mkdir_p |
facd0e8e |
203 | UNRESOLVABLE_CONDITION |
3705e3b2 |
204 | ); |
052a832c |
205 | |
facd0e8e |
206 | use constant UNRESOLVABLE_CONDITION => \ '1 = 0'; |
207 | |
e85eb407 |
208 | # Override forcing no_defer, and adding naming consistency checks |
dc715747 |
209 | our %refs_closed_over_by_quote_sub_installed_crefs; |
e85eb407 |
210 | sub quote_sub { |
9642350a |
211 | Carp::confess( "Anonymous quoting not supported by the DBIC quote_sub override - supply a sub name" ) if |
e85eb407 |
212 | @_ < 2 |
213 | or |
214 | ! defined $_[1] |
215 | or |
216 | length ref $_[1] |
217 | ; |
218 | |
9642350a |
219 | Carp::confess( "The DBIC quote_sub override expects sub name '$_[0]' to be fully qualified" ) |
220 | unless (my $stash) = $_[0] =~ /^(.+)::/; |
221 | |
222 | Carp::confess( |
223 | "The DBIC sub_quote override does not support 'no_install'" |
224 | ) if ( |
225 | $_[3] |
226 | and |
227 | $_[3]->{no_install} |
228 | ); |
e85eb407 |
229 | |
9642350a |
230 | Carp::confess( |
231 | 'The DBIC quote_sub override expects the namespace-part of sub name ' |
232 | . "'$_[0]' to match the supplied package argument '$_[3]->{package}'" |
233 | ) if ( |
e85eb407 |
234 | $_[3] |
235 | and |
236 | defined $_[3]->{package} |
237 | and |
9642350a |
238 | $stash ne $_[3]->{package} |
239 | ); |
e85eb407 |
240 | |
241 | my @caller = caller(0); |
242 | my $sq_opts = { |
243 | package => $caller[0], |
244 | hints => $caller[8], |
245 | warning_bits => $caller[9], |
246 | hintshash => $caller[10], |
247 | %{ $_[3] || {} }, |
248 | |
249 | # explicitly forced for everything |
250 | no_defer => 1, |
251 | }; |
252 | |
dc715747 |
253 | weaken ( |
254 | # just use a growing counter, no need to perform neither compaction |
255 | # nor any special ithread-level handling |
256 | $refs_closed_over_by_quote_sub_installed_crefs |
257 | { scalar keys %refs_closed_over_by_quote_sub_installed_crefs } |
258 | = $_ |
259 | ) for grep { |
260 | length ref $_ |
261 | and |
262 | ( |
263 | ! DBIx::Class::_ENV_::BROKEN_WEAK_SCALARREF_VALUES |
264 | or |
265 | ref $_ ne 'SCALAR' |
266 | ) |
267 | } values %{ $_[2] || {} }; |
268 | |
9642350a |
269 | Sub::Quote::quote_sub( $_[0], $_[1], $_[2]||{}, $sq_opts ); |
e85eb407 |
270 | } |
271 | |
bf302897 |
272 | sub sigwarn_silencer ($) { |
052a832c |
273 | my $pattern = shift; |
274 | |
275 | croak "Expecting a regexp" if ref $pattern ne 'Regexp'; |
276 | |
277 | my $orig_sig_warn = $SIG{__WARN__} || sub { CORE::warn(@_) }; |
278 | |
279 | return sub { &$orig_sig_warn unless $_[0] =~ $pattern }; |
280 | } |
b1dbf716 |
281 | |
01b25f12 |
282 | sub perlstring ($) { q{"}. quotemeta( shift ). q{"} }; |
283 | |
3d56e026 |
284 | sub hrefaddr ($) { sprintf '0x%x', &refaddr||0 } |
8433421f |
285 | |
286 | sub refdesc ($) { |
287 | croak "Expecting a reference" if ! length ref $_[0]; |
288 | |
289 | # be careful not to trigger stringification, |
290 | # reuse @_ as a scratch-pad |
291 | sprintf '%s%s(0x%x)', |
292 | ( defined( $_[1] = blessed $_[0]) ? "$_[1]=" : '' ), |
293 | reftype $_[0], |
3d56e026 |
294 | refaddr($_[0]), |
8433421f |
295 | ; |
296 | } |
bf302897 |
297 | |
298 | sub refcount ($) { |
dac7972a |
299 | croak "Expecting a reference" if ! length ref $_[0]; |
300 | |
dac7972a |
301 | # No tempvars - must operate on $_[0], otherwise the pad |
302 | # will count as an extra ref |
303 | B::svref_2object($_[0])->REFCNT; |
304 | } |
305 | |
10be570e |
306 | sub visit_namespaces { |
307 | my $args = { (ref $_[0]) ? %{$_[0]} : @_ }; |
308 | |
309 | my $visited_count = 1; |
310 | |
311 | # A package and a namespace are subtly different things |
312 | $args->{package} ||= 'main'; |
313 | $args->{package} = 'main' if $args->{package} =~ /^ :: (?: main )? $/x; |
314 | $args->{package} =~ s/^:://; |
315 | |
316 | if ( $args->{action}->($args->{package}) ) { |
317 | my $ns = |
318 | ( ($args->{package} eq 'main') ? '' : $args->{package} ) |
319 | . |
320 | '::' |
321 | ; |
322 | |
323 | $visited_count += visit_namespaces( %$args, package => $_ ) for |
324 | grep |
325 | # this happens sometimes on %:: traversal |
326 | { $_ ne '::main' } |
327 | map |
328 | { $_ =~ /^(.+?)::$/ ? "$ns$1" : () } |
329 | do { no strict 'refs'; keys %$ns } |
330 | ; |
331 | } |
332 | |
333 | $visited_count; |
334 | } |
335 | |
86a432d4 |
336 | # FIXME In another life switch these to a polyfill like the ones in namespace::clean |
337 | sub get_subname ($) { |
338 | my $gv = B::svref_2object( $_[0] )->GV; |
339 | wantarray |
340 | ? ( $gv->STASH->NAME, $gv->NAME ) |
341 | : ( join '::', $gv->STASH->NAME, $gv->NAME ) |
342 | ; |
343 | } |
514b84f6 |
344 | sub set_subname ($$) { |
345 | |
346 | # fully qualify name |
347 | splice @_, 0, 1, caller(0) . "::$_[0]" |
348 | if $_[0] !~ /::|'/; |
349 | |
350 | &Sub::Name::subname; |
351 | } |
352 | |
b34d9331 |
353 | sub serialize ($) { |
b34d9331 |
354 | local $Storable::canonical = 1; |
d7d45bdc |
355 | nfreeze($_[0]); |
b34d9331 |
356 | } |
357 | |
10be570e |
358 | sub uniq { |
359 | my( %seen, $seen_undef, $numeric_preserving_copy ); |
360 | grep { not ( |
361 | defined $_ |
362 | ? $seen{ $numeric_preserving_copy = $_ }++ |
363 | : $seen_undef++ |
364 | ) } @_; |
365 | } |
366 | |
2d5ac3cf |
367 | my $dd_obj; |
8fc4291e |
368 | sub dump_value ($) { |
369 | local $Data::Dumper::Indent = 1 |
370 | unless defined $Data::Dumper::Indent; |
371 | |
2d5ac3cf |
372 | my $dump_str = ( |
8fc4291e |
373 | $dd_obj |
374 | ||= |
375 | do { |
376 | require Data::Dumper; |
377 | my $d = Data::Dumper->new([]) |
378 | ->Purity(0) |
379 | ->Pad('') |
380 | ->Useqq(1) |
381 | ->Terse(1) |
382 | ->Freezer('') |
383 | ->Quotekeys(0) |
384 | ->Bless('bless') |
385 | ->Pair(' => ') |
386 | ->Sortkeys(1) |
387 | ->Deparse(1) |
388 | ; |
389 | |
390 | $d->Sparseseen(1) if modver_gt_or_eq ( |
391 | 'Data::Dumper', '2.136' |
392 | ); |
393 | |
394 | $d; |
395 | } |
396 | )->Values([$_[0]])->Dump; |
397 | |
398 | $dd_obj->Reset->Values([]); |
399 | |
400 | $dump_str; |
401 | } |
402 | |
c40b5744 |
403 | my $seen_loud_screams; |
404 | sub emit_loud_diag { |
405 | my $args = { ref $_[0] eq 'HASH' ? %{$_[0]} : @_ }; |
406 | |
407 | unless ( defined $args->{msg} and length $args->{msg} ) { |
408 | emit_loud_diag( |
409 | msg => "No 'msg' value supplied to emit_loud_diag()" |
410 | ); |
411 | exit 70; |
412 | } |
413 | |
414 | my $msg = "\n$0: $args->{msg}"; |
415 | |
416 | # when we die - we usually want to keep doing it |
417 | $args->{emit_dups} = !!$args->{confess} |
418 | unless exists $args->{emit_dups}; |
419 | |
420 | local $Carp::CarpLevel = |
421 | ( $args->{skip_frames} || 0 ) |
422 | + |
423 | $Carp::CarpLevel |
424 | + |
425 | # hide our own frame |
426 | 1 |
427 | ; |
428 | |
429 | my $longmess = Carp::longmess(); |
430 | |
431 | # different object references will thwart deduplication without this |
432 | ( my $key = "${msg}\n${longmess}" ) =~ s/\b0x[0-9a-f]+\b/0x.../gi; |
433 | |
434 | return $seen_loud_screams->{$key} if |
435 | $seen_loud_screams->{$key}++ |
436 | and |
437 | ! $args->{emit_dups} |
438 | ; |
439 | |
440 | $msg .= $longmess |
441 | unless $msg =~ /\n\z/; |
442 | |
443 | print STDERR "$msg\n" |
444 | or |
445 | print STDOUT "\n!!!STDERR ISN'T WRITABLE!!!:$msg\n"; |
446 | |
447 | return $seen_loud_screams->{$key} |
448 | unless $args->{confess}; |
449 | |
450 | # increment *again*, because... Carp. |
451 | $Carp::CarpLevel++; |
452 | |
453 | # not $msg - Carp will reapply the longmess on its own |
454 | Carp::confess($args->{msg}); |
455 | } |
456 | |
457 | |
293cb2f1 |
458 | ### |
459 | ### This is *NOT* boolean.pm - deliberately not using a singleton |
460 | ### |
461 | { |
462 | package # hide from pause |
463 | DBIx::Class::_Util::_Bool; |
464 | use overload |
465 | bool => sub { ${$_[0]} }, |
466 | fallback => 1, |
467 | ; |
468 | } |
469 | sub true () { my $x = 1; bless \$x, "DBIx::Class::_Util::_Bool" } |
470 | sub false () { my $x = 0; bless \$x, "DBIx::Class::_Util::_Bool" } |
471 | |
bbf6a9a5 |
472 | sub scope_guard (&) { |
473 | croak 'Calling scope_guard() in void context makes no sense' |
474 | if ! defined wantarray; |
475 | |
476 | # no direct blessing of coderefs - DESTROY is buggy on those |
477 | bless [ $_[0] ], 'DBIx::Class::_Util::ScopeGuard'; |
478 | } |
479 | { |
480 | package # |
481 | DBIx::Class::_Util::ScopeGuard; |
482 | |
483 | sub DESTROY { |
484 | &DBIx::Class::_Util::detected_reinvoked_destructor; |
485 | |
486 | local $@ if DBIx::Class::_ENV_::UNSTABLE_DOLLARAT; |
487 | |
488 | eval { |
489 | $_[0]->[0]->(); |
490 | 1; |
118b2c36 |
491 | } |
492 | or |
c40b5744 |
493 | DBIx::Class::_Util::emit_loud_diag( |
494 | emit_dups => 1, |
495 | msg => "Execution of scope guard $_[0] resulted in the non-trappable exception:\n\n$@\n " |
118b2c36 |
496 | ); |
bbf6a9a5 |
497 | } |
498 | } |
499 | |
500 | |
841efcb3 |
501 | sub is_exception ($) { |
502 | my $e = $_[0]; |
503 | |
35cf7d1a |
504 | # FIXME |
a0414138 |
505 | # this is not strictly correct - an eval setting $@ to undef |
506 | # is *not* the same as an eval setting $@ to '' |
507 | # but for the sake of simplicity assume the following for |
508 | # the time being |
509 | return 0 unless defined $e; |
510 | |
841efcb3 |
511 | my ($not_blank, $suberror); |
512 | { |
5c33c8be |
513 | local $SIG{__DIE__} if $SIG{__DIE__}; |
841efcb3 |
514 | local $@; |
515 | eval { |
d52c4a75 |
516 | # The ne() here is deliberate - a plain length($e), or worse "$e" ne |
517 | # will entirely obviate the need for the encolsing eval{}, as the |
518 | # condition we guard against is a missing fallback overload |
519 | $not_blank = ( $e ne '' ); |
841efcb3 |
520 | 1; |
521 | } or $suberror = $@; |
522 | } |
523 | |
524 | if (defined $suberror) { |
525 | if (length (my $class = blessed($e) )) { |
526 | carp_unique( sprintf( |
9bea2000 |
527 | 'External exception class %s implements partial (broken) overloading ' |
528 | . 'preventing its instances from being used in simple ($x eq $y) ' |
841efcb3 |
529 | . 'comparisons. Given Perl\'s "globally cooperative" exception ' |
530 | . 'handling this type of brokenness is extremely dangerous on ' |
531 | . 'exception objects, as it may (and often does) result in silent ' |
532 | . '"exception substitution". DBIx::Class tries to work around this ' |
533 | . 'as much as possible, but other parts of your software stack may ' |
534 | . 'not be even aware of this. Please submit a bugreport against the ' |
535 | . 'distribution containing %s and in the meantime apply a fix similar ' |
536 | . 'to the one shown at %s, in order to ensure your exception handling ' |
537 | . 'is saner application-wide. What follows is the actual error text ' |
538 | . "as generated by Perl itself:\n\n%s\n ", |
9bea2000 |
539 | $class, |
841efcb3 |
540 | $class, |
541 | 'http://v.gd/DBIC_overload_tempfix/', |
542 | $suberror, |
543 | )); |
544 | |
545 | # workaround, keeps spice flowing |
d52c4a75 |
546 | $not_blank = !!( length $e ); |
841efcb3 |
547 | } |
548 | else { |
549 | # not blessed yet failed the 'ne'... this makes 0 sense... |
550 | # just throw further |
551 | die $suberror |
552 | } |
553 | } |
84e4e006 |
554 | elsif ( |
555 | # a ref evaluating to '' is definitively a "null object" |
556 | ( not $not_blank ) |
557 | and |
558 | length( my $class = ref $e ) |
559 | ) { |
c40b5744 |
560 | carp_unique( |
561 | "Objects of external exception class '$class' stringify to '' (the " |
84e4e006 |
562 | . 'empty string), implementing the so called null-object-pattern. ' |
563 | . 'Given Perl\'s "globally cooperative" exception handling using this ' |
564 | . 'class of exceptions is extremely dangerous, as it may (and often ' |
565 | . 'does) result in silent discarding of errors. DBIx::Class tries to ' |
566 | . 'work around this as much as possible, but other parts of your ' |
567 | . 'software stack may not be even aware of the problem. Please submit ' |
c40b5744 |
568 | . "a bugreport against the distribution containing '$class'", |
569 | ); |
84e4e006 |
570 | |
571 | $not_blank = 1; |
572 | } |
841efcb3 |
573 | |
574 | return $not_blank; |
575 | } |
576 | |
3d56e026 |
577 | { |
ddcc02d1 |
578 | my $callstack_state; |
579 | |
580 | # Recreate the logic of try(), while reusing the catch()/finally() as-is |
581 | # |
582 | # FIXME: We need to move away from Try::Tiny entirely (way too heavy and |
583 | # yes, shows up ON TOP of profiles) but this is a batle for another maint |
584 | sub dbic_internal_try (&;@) { |
585 | |
586 | my $try_cref = shift; |
587 | my $catch_cref = undef; # apparently this is a thing... https://rt.perl.org/Public/Bug/Display.html?id=119311 |
588 | |
589 | for my $arg (@_) { |
590 | |
591 | if( ref($arg) eq 'Try::Tiny::Catch' ) { |
592 | |
593 | croak 'dbic_internal_try() may not be followed by multiple catch() blocks' |
594 | if $catch_cref; |
595 | |
596 | $catch_cref = $$arg; |
597 | } |
598 | elsif ( ref($arg) eq 'Try::Tiny::Finally' ) { |
599 | croak 'dbic_internal_try() does not support finally{}'; |
600 | } |
601 | else { |
602 | croak( |
603 | 'dbic_internal_try() encountered an unexpected argument ' |
604 | . "'@{[ defined $arg ? $arg : 'UNDEF' ]}' - perhaps " |
605 | . 'a missing semi-colon before or ' # trailing space important |
606 | ); |
607 | } |
608 | } |
609 | |
610 | my $wantarray = wantarray; |
611 | my $preexisting_exception = $@; |
612 | |
613 | my @ret; |
614 | my $all_good = eval { |
615 | $@ = $preexisting_exception; |
616 | |
617 | local $callstack_state->{in_internal_try} = 1 |
618 | unless $callstack_state->{in_internal_try}; |
619 | |
620 | # always unset - someone may have snuck it in |
5c33c8be |
621 | local $SIG{__DIE__} if $SIG{__DIE__}; |
ddcc02d1 |
622 | |
623 | if( $wantarray ) { |
624 | @ret = $try_cref->(); |
625 | } |
626 | elsif( defined $wantarray ) { |
627 | $ret[0] = $try_cref->(); |
628 | } |
629 | else { |
630 | $try_cref->(); |
631 | } |
632 | |
633 | 1; |
634 | }; |
635 | |
636 | my $exception = $@; |
637 | $@ = $preexisting_exception; |
638 | |
639 | if ( $all_good ) { |
640 | return $wantarray ? @ret : $ret[0] |
641 | } |
642 | elsif ( $catch_cref ) { |
643 | for ( $exception ) { |
644 | return $catch_cref->($exception); |
645 | } |
646 | } |
647 | |
648 | return; |
649 | } |
650 | |
651 | sub in_internal_try { !! $callstack_state->{in_internal_try} } |
652 | } |
653 | |
654 | { |
3d56e026 |
655 | my $destruction_registry = {}; |
656 | |
04c1a070 |
657 | sub DBIx::Class::__Util_iThreads_handler__::CLONE { |
d098704f |
658 | %$destruction_registry = map { |
659 | (defined $_) |
660 | ? ( refaddr($_) => $_ ) |
661 | : () |
662 | } values %$destruction_registry; |
d52fc26d |
663 | |
d098704f |
664 | weaken($_) for values %$destruction_registry; |
29211e03 |
665 | |
d52fc26d |
666 | # Dummy NEXTSTATE ensuring the all temporaries on the stack are garbage |
667 | # collected before leaving this scope. Depending on the code above, this |
668 | # may very well be just a preventive measure guarding future modifications |
669 | undef; |
3d56e026 |
670 | } |
671 | |
672 | # This is almost invariably invoked from within DESTROY |
673 | # throwing exceptions won't work |
e1d9e578 |
674 | sub detected_reinvoked_destructor { |
3d56e026 |
675 | |
676 | # quick "garbage collection" pass - prevents the registry |
677 | # from slowly growing with a bunch of undef-valued keys |
678 | defined $destruction_registry->{$_} or delete $destruction_registry->{$_} |
679 | for keys %$destruction_registry; |
680 | |
e1d9e578 |
681 | if (! length ref $_[0]) { |
c40b5744 |
682 | emit_loud_diag( |
683 | emit_dups => 1, |
684 | msg => (caller(0))[3] . '() expects a blessed reference' |
685 | ); |
3d56e026 |
686 | return undef; # don't know wtf to do |
687 | } |
e1d9e578 |
688 | elsif (! defined $destruction_registry->{ my $addr = refaddr($_[0]) } ) { |
3d56e026 |
689 | weaken( $destruction_registry->{$addr} = $_[0] ); |
690 | return 0; |
691 | } |
692 | else { |
c40b5744 |
693 | emit_loud_diag( msg => sprintf ( |
3d56e026 |
694 | 'Preventing *MULTIPLE* DESTROY() invocations on %s - an *EXTREMELY ' |
695 | . 'DANGEROUS* condition which is *ALMOST CERTAINLY GLOBAL* within your ' |
696 | . 'application, affecting *ALL* classes without active protection against ' |
697 | . 'this. Diagnose and fix the root cause ASAP!!!%s', |
698 | refdesc $_[0], |
699 | ( ( $INC{'Devel/StackTrace.pm'} and ! do { local $@; eval { Devel::StackTrace->VERSION(2) } } ) |
700 | ? " (likely culprit Devel::StackTrace\@@{[ Devel::StackTrace->VERSION ]} found in %INC, http://is.gd/D_ST_refcap)" |
701 | : '' |
702 | ) |
703 | )); |
704 | |
705 | return 1; |
706 | } |
707 | } |
708 | } |
709 | |
7302b3e0 |
710 | my $module_name_rx = qr/ \A [A-Z_a-z] [0-9A-Z_a-z]* (?: :: [0-9A-Z_a-z]+ )* \z /x; |
711 | my $ver_rx = qr/ \A [0-9]+ (?: \. [0-9]+ )* (?: \_ [0-9]+ )* \z /x; |
712 | |
bf302897 |
713 | sub modver_gt_or_eq ($$) { |
b1dbf716 |
714 | my ($mod, $ver) = @_; |
715 | |
716 | croak "Nonsensical module name supplied" |
7302b3e0 |
717 | if ! defined $mod or $mod !~ $module_name_rx; |
b1dbf716 |
718 | |
719 | croak "Nonsensical minimum version supplied" |
7302b3e0 |
720 | if ! defined $ver or $ver !~ $ver_rx; |
721 | |
722 | no strict 'refs'; |
723 | my $ver_cache = ${"${mod}::__DBIC_MODULE_VERSION_CHECKS__"} ||= ( $mod->VERSION |
724 | ? {} |
725 | : croak "$mod does not seem to provide a version (perhaps it never loaded)" |
726 | ); |
727 | |
728 | ! defined $ver_cache->{$ver} |
729 | and |
730 | $ver_cache->{$ver} = do { |
b1dbf716 |
731 | |
7302b3e0 |
732 | local $SIG{__WARN__} = sigwarn_silencer( qr/\Qisn't numeric in subroutine entry/ ) |
733 | if SPURIOUS_VERSION_CHECK_WARNINGS; |
b1dbf716 |
734 | |
5c33c8be |
735 | local $SIG{__DIE__} if $SIG{__DIE__}; |
7302b3e0 |
736 | local $@; |
7302b3e0 |
737 | eval { $mod->VERSION($ver) } ? 1 : 0; |
738 | }; |
56270bba |
739 | |
7302b3e0 |
740 | $ver_cache->{$ver}; |
b1dbf716 |
741 | } |
742 | |
d634850b |
743 | sub modver_gt_or_eq_and_lt ($$$) { |
744 | my ($mod, $v_ge, $v_lt) = @_; |
745 | |
746 | croak "Nonsensical maximum version supplied" |
7302b3e0 |
747 | if ! defined $v_lt or $v_lt !~ $ver_rx; |
d634850b |
748 | |
749 | return ( |
750 | modver_gt_or_eq($mod, $v_ge) |
751 | and |
752 | ! modver_gt_or_eq($mod, $v_lt) |
753 | ) ? 1 : 0; |
754 | } |
755 | |
296248c3 |
756 | { |
296248c3 |
757 | |
758 | sub describe_class_methods { |
8eac247d |
759 | my $args = ( |
760 | ref $_[0] eq 'HASH' ? $_[0] |
761 | : ( @_ == 1 and ! length ref $_[0] ) ? { class => $_[0] } |
762 | : { @_ } |
763 | ); |
764 | |
765 | my ($class, $requested_mro) = @{$args}{qw( class use_mro )}; |
296248c3 |
766 | |
8eac247d |
767 | croak "Expecting a class name either as the sole argument or a 'class' option" |
5e67be26 |
768 | if not defined $class or $class !~ $module_name_rx; |
296248c3 |
769 | |
5f0174dc |
770 | croak( |
771 | "The supplied 'class' argument is tainted: this is *extremely* " |
772 | . 'dangerous, fix your code ASAP!!! ( for more details read through ' |
773 | . 'https://is.gd/perl_mro_taint_wtf )' |
774 | ) if ( |
775 | DBIx::Class::_ENV_::TAINT_MODE |
776 | and |
777 | Scalar::Util::tainted($class) |
778 | ); |
779 | |
1cf2ad8b |
780 | $requested_mro ||= mro::get_mro($class); |
781 | |
782 | # mro::set_mro() does not bump pkg_gen - WHAT THE FUCK?! |
783 | my $query_cache_key = "$class|$requested_mro"; |
784 | |
953f8eb0 |
785 | my $internal_cache_key = |
1cf2ad8b |
786 | ( mro::get_mro($class) eq $requested_mro ) |
787 | ? $class |
788 | : $query_cache_key |
789 | ; |
790 | |
296248c3 |
791 | # use a cache on old MRO, since while we are recursing in this function |
792 | # nothing can possibly change (the speedup is immense) |
793 | # (yes, people could be tie()ing the stash and adding methods on access |
794 | # but there is a limit to how much crazy can be supported here) |
795 | # |
796 | # we use the cache for linear_isa lookups on new MRO as well - it adds |
797 | # a *tiny* speedup, and simplifies the code a lot |
798 | # |
953f8eb0 |
799 | local $__describe_class_query_cache->{'!internal!'} = {} |
800 | unless $__describe_class_query_cache->{'!internal!'}; |
296248c3 |
801 | |
802 | my $my_gen = 0; |
803 | |
d01688cc |
804 | $my_gen += get_real_pkg_gen($_) for ( my @full_ISA = ( |
805 | |
806 | @{ |
953f8eb0 |
807 | $__describe_class_query_cache->{'!internal!'}{$internal_cache_key}{linear_isa} |
296248c3 |
808 | ||= |
1cf2ad8b |
809 | mro::get_linear_isa($class, $requested_mro) |
d01688cc |
810 | }, |
811 | |
812 | (( |
953f8eb0 |
813 | $__describe_class_query_cache->{'!internal!'}{$class}{is_universal} |
d01688cc |
814 | ||= |
815 | mro::is_universal($class) |
816 | ) ? () : @{ |
953f8eb0 |
817 | $__describe_class_query_cache->{'!internal!'}{UNIVERSAL}{linear_isa} |
d01688cc |
818 | ||= |
819 | mro::get_linear_isa("UNIVERSAL") |
820 | }), |
821 | |
822 | )); |
296248c3 |
823 | |
953f8eb0 |
824 | my $slot = $__describe_class_query_cache->{$query_cache_key} ||= {}; |
296248c3 |
825 | |
826 | unless ( ($slot->{cumulative_gen}||0) == $my_gen ) { |
827 | |
828 | # reset |
829 | %$slot = ( |
830 | class => $class, |
2603b495 |
831 | isa => { map { $_ => 1 } @full_ISA }, |
832 | linear_isa => [ |
953f8eb0 |
833 | @{ $__describe_class_query_cache->{'!internal!'}{$internal_cache_key}{linear_isa} } |
834 | [ 1 .. $#{$__describe_class_query_cache->{'!internal!'}{$internal_cache_key}{linear_isa}} ] |
d01688cc |
835 | ], |
296248c3 |
836 | mro => { |
1cf2ad8b |
837 | type => $requested_mro, |
838 | is_c3 => ( ($requested_mro eq 'c3') ? 1 : 0 ), |
296248c3 |
839 | }, |
840 | cumulative_gen => $my_gen, |
841 | ); |
296248c3 |
842 | |
2603b495 |
843 | # remove ourselves from ISA |
844 | shift @full_ISA; |
845 | |
296248c3 |
846 | # ensure the cache is populated for the parents, code below can then |
847 | # efficiently operate over the query_cache directly |
d01688cc |
848 | describe_class_methods($_) for reverse @full_ISA; |
296248c3 |
849 | |
296248c3 |
850 | no strict 'refs'; |
851 | |
852 | # combine full ISA-order inherited and local method list into a |
853 | # "shadowing stack" |
854 | |
855 | ( |
085dbdd6 |
856 | unshift @{ $slot->{methods}{$_->{name}} }, $_ |
296248c3 |
857 | |
858 | and |
859 | |
085dbdd6 |
860 | ( |
861 | $_->{via_class} ne $class |
862 | or |
863 | $slot->{methods_defined_in_class}{$_->{name}} = $_ |
864 | ) |
296248c3 |
865 | |
866 | and |
867 | |
868 | @{ $slot->{methods}{$_->{name}} } > 1 |
869 | |
870 | and |
871 | |
872 | $slot->{methods_with_supers}{$_->{name}} = $slot->{methods}{$_->{name}} |
873 | |
874 | ) for ( |
875 | |
d01688cc |
876 | # what describe_class_methods for @full_ISA produced above |
085dbdd6 |
877 | ( map { values %{ |
953f8eb0 |
878 | $__describe_class_query_cache->{$_}{methods_defined_in_class} || {} |
1cf2ad8b |
879 | } } map { "$_|" . mro::get_mro($_) } reverse @full_ISA ), |
296248c3 |
880 | |
881 | # our own non-cleaned subs + their attributes |
882 | ( map { |
883 | ( |
1c179556 |
884 | # need to account for dummy helper crefs under OLD_MRO |
296248c3 |
885 | ( |
1c179556 |
886 | ! DBIx::Class::_ENV_::OLD_MRO |
296248c3 |
887 | or |
1c179556 |
888 | ! ( ( $Class::C3::MRO{$class} || {} )->{methods}{$_} ) |
296248c3 |
889 | ) |
890 | and |
1c179556 |
891 | # these 2 OR-ed checks are sufficient for 5.10+ |
296248c3 |
892 | ( |
1c179556 |
893 | ref(\ "${class}::"->{$_} ) ne 'GLOB' |
296248c3 |
894 | or |
1c179556 |
895 | defined( *{ "${class}::"->{$_} }{CODE} ) |
296248c3 |
896 | ) |
897 | ) ? { |
898 | via_class => $class, |
899 | name => $_, |
92705f7f |
900 | attributes => { map { $_ => 1 } do { |
901 | my @attrs; |
902 | local $@; |
903 | local $SIG{__DIE__} if $SIG{__DIE__}; |
904 | # attributes::get may throw on blessed-false crefs :/ |
905 | eval { @attrs = attributes::get( \&{"${class}::${_}"} ); 1 } |
906 | or warn "Unable to determine attributes of the \\&${class}::$_ method due to following error: $@"; |
907 | @attrs; |
908 | } }, |
296248c3 |
909 | } |
910 | : () |
911 | } keys %{"${class}::"} ) |
912 | ); |
913 | |
914 | |
915 | # recalculate the pkg_gen on newer perls under Taint mode, |
916 | # because of shit like: |
917 | # perl -T -Mmro -e 'package Foo; sub bar {}; defined( *{ "Foo::"->{bar}}{CODE} ) and warn mro::get_pkg_gen("Foo") for (1,2,3)' |
918 | # |
919 | if ( |
920 | ! DBIx::Class::_ENV_::OLD_MRO |
921 | and |
5f0174dc |
922 | DBIx::Class::_ENV_::TAINT_MODE |
296248c3 |
923 | ) { |
924 | |
925 | $slot->{cumulative_gen} = 0; |
926 | $slot->{cumulative_gen} += get_real_pkg_gen($_) |
d01688cc |
927 | for $class, @full_ISA; |
296248c3 |
928 | } |
929 | } |
930 | |
931 | # RV |
932 | +{ %$slot }; |
933 | } |
934 | } |
935 | |
e3be2b6f |
936 | |
937 | # |
938 | # Why not just use some higher-level module or at least File::Spec here? |
939 | # Because: |
940 | # 1) This is a *very* rarely used function, and the deptree is large |
941 | # enough already as it is |
942 | # |
943 | # 2) (more importantly) Our tooling is utter shit in this area. There |
944 | # is no comprehensive support for UNC paths in PathTools and there |
945 | # are also various small bugs in representation across different |
946 | # path-manipulation CPAN offerings. |
947 | # |
948 | # Since this routine is strictly used for logical path processing (it |
949 | # *must* be able to work with not-yet-existing paths), use this seemingly |
950 | # simple but I *think* complete implementation to feed to other consumers |
951 | # |
952 | # If bugs are ever uncovered in this routine, *YOU ARE URGED TO RESIST* |
953 | # the impulse to bring in an external dependency. During runtime there |
954 | # is exactly one spot that could potentially maybe once in a blue moon |
955 | # use this function. Keep it lean. |
956 | # |
957 | sub parent_dir ($) { |
958 | ( $_[0] =~ m{ [\/\\] ( \.{0,2} ) ( [\/\\]* ) \z }x ) |
959 | ? ( |
960 | $_[0] |
961 | . |
962 | ( ( length($1) and ! length($2) ) ? '/' : '' ) |
963 | . |
964 | '../' |
965 | ) |
966 | : ( |
967 | require File::Spec |
968 | and |
969 | File::Spec->catpath ( |
970 | ( File::Spec->splitpath( "$_[0]" ) )[0,1], |
971 | '/', |
972 | ) |
973 | ) |
974 | ; |
975 | } |
976 | |
439a7283 |
977 | sub mkdir_p ($) { |
978 | require File::Path; |
979 | # do not ask for a recent version, use 1.x API calls |
980 | File::Path::mkpath([ "$_[0]" ]); # File::Path does not like objects |
981 | } |
982 | |
e3be2b6f |
983 | |
a9da9b6a |
984 | { |
985 | my $list_ctx_ok_stack_marker; |
986 | |
e89c7968 |
987 | sub fail_on_internal_wantarray () { |
a9da9b6a |
988 | return if $list_ctx_ok_stack_marker; |
989 | |
990 | if (! defined wantarray) { |
991 | croak('fail_on_internal_wantarray() needs a tempvar to save the stack marker guard'); |
992 | } |
993 | |
994 | my $cf = 1; |
821edc09 |
995 | while ( ( (CORE::caller($cf+1))[3] || '' ) =~ / :: (?: |
a9da9b6a |
996 | |
997 | # these are public API parts that alter behavior on wantarray |
998 | search | search_related | slice | search_literal |
999 | |
1000 | | |
1001 | |
1002 | # these are explicitly prefixed, since we only recognize them as valid |
1003 | # escapes when they come from the guts of CDBICompat |
1004 | CDBICompat .*? :: (?: search_where | retrieve_from_sql | retrieve_all ) |
1005 | |
1006 | ) $/x ) { |
1007 | $cf++; |
1008 | } |
1009 | |
e89c7968 |
1010 | my ($fr, $want, $argdesc); |
1011 | { |
1012 | package DB; |
821edc09 |
1013 | $fr = [ CORE::caller($cf) ]; |
1014 | $want = ( CORE::caller($cf-1) )[5]; |
e89c7968 |
1015 | $argdesc = ref $DB::args[0] |
1016 | ? DBIx::Class::_Util::refdesc($DB::args[0]) |
1017 | : 'non ' |
1018 | ; |
1019 | }; |
1020 | |
a9da9b6a |
1021 | if ( |
e89c7968 |
1022 | $want and $fr->[0] =~ /^(?:DBIx::Class|DBICx::)/ |
a9da9b6a |
1023 | ) { |
a9da9b6a |
1024 | DBIx::Class::Exception->throw( sprintf ( |
e89c7968 |
1025 | "Improper use of %s instance in list context at %s line %d\n\n Stacktrace starts", |
1026 | $argdesc, @{$fr}[1,2] |
a9da9b6a |
1027 | ), 'with_stacktrace'); |
1028 | } |
1029 | |
d098704f |
1030 | weaken( $list_ctx_ok_stack_marker = my $mark = [] ); |
1031 | |
a9da9b6a |
1032 | $mark; |
1033 | } |
1034 | } |
1035 | |
77c3a5dc |
1036 | sub fail_on_internal_call { |
1037 | my ($fr, $argdesc); |
1038 | { |
1039 | package DB; |
821edc09 |
1040 | $fr = [ CORE::caller(1) ]; |
77c3a5dc |
1041 | $argdesc = ref $DB::args[0] |
1042 | ? DBIx::Class::_Util::refdesc($DB::args[0]) |
e5053694 |
1043 | : ( $DB::args[0] . '' ) |
77c3a5dc |
1044 | ; |
1045 | }; |
1046 | |
3b020224 |
1047 | my @fr2; |
1048 | # need to make allowance for a proxy-yet-direct call |
1049 | my $check_fr = ( |
1050 | $fr->[0] eq 'DBIx::Class::ResultSourceProxy' |
1051 | and |
1052 | @fr2 = (CORE::caller(2)) |
1053 | and |
1054 | ( |
1055 | ( $fr->[3] =~ /([^:])+$/ )[0] |
1056 | eq |
1057 | ( $fr2[3] =~ /([^:])+$/ )[0] |
1058 | ) |
1059 | ) |
1060 | ? \@fr2 |
1061 | : $fr |
1062 | ; |
1063 | |
77c3a5dc |
1064 | if ( |
1065 | $argdesc |
1066 | and |
3b020224 |
1067 | $check_fr->[0] =~ /^(?:DBIx::Class|DBICx::)/ |
77c3a5dc |
1068 | and |
3b020224 |
1069 | $check_fr->[1] !~ /\b(?:CDBICompat|ResultSetProxy)\b/ # no point touching there |
77c3a5dc |
1070 | ) { |
1071 | DBIx::Class::Exception->throw( sprintf ( |
e5053694 |
1072 | "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 |
1073 | $fr->[3], $argdesc, @{$fr}[1,2], ( $fr->[6] || do { |
1074 | require B::Deparse; |
1075 | no strict 'refs'; |
1076 | B::Deparse->new->coderef2text(\&{$fr->[3]}) |
1077 | }), |
1078 | ), 'with_stacktrace'); |
1079 | } |
1080 | } |
1081 | |
534aff61 |
1082 | if (DBIx::Class::_ENV_::ASSERT_NO_ERRONEOUS_METAINSTANCE_USE) { |
1083 | |
1084 | no warnings 'redefine'; |
1085 | |
1086 | my $next_bless = defined(&CORE::GLOBAL::bless) |
1087 | ? \&CORE::GLOBAL::bless |
1088 | : sub { CORE::bless($_[0], $_[1]) } |
1089 | ; |
1090 | |
1091 | *CORE::GLOBAL::bless = sub { |
1092 | my $class = (@_ > 1) ? $_[1] : CORE::caller(); |
1093 | |
1094 | # allow for reblessing (role application) |
1095 | return $next_bless->( $_[0], $class ) |
1096 | if defined blessed $_[0]; |
1097 | |
1098 | my $obj = $next_bless->( $_[0], $class ); |
1099 | |
1100 | my $calling_sub = (CORE::caller(1))[3] || ''; |
1101 | |
1102 | ( |
1103 | # before 5.18 ->isa() will choke on the "0" package |
1104 | # which we test for in several obscure cases, sigh... |
1105 | !( DBIx::Class::_ENV_::PERL_VERSION < 5.018 ) |
1106 | or |
1107 | $class |
1108 | ) |
1109 | and |
1110 | ( |
1111 | ( |
1112 | $calling_sub !~ /^ (?: |
1113 | DBIx::Class::Schema::clone |
1114 | | |
1115 | DBIx::Class::DB::setup_schema_instance |
1116 | )/x |
1117 | and |
1118 | $class->isa("DBIx::Class::Schema") |
1119 | ) |
1120 | or |
1121 | ( |
1122 | $calling_sub ne 'DBIx::Class::ResultSource::new' |
1123 | and |
1124 | $class->isa("DBIx::Class::ResultSource") |
1125 | ) |
1126 | ) |
1127 | and |
1128 | local $Carp::CarpLevel = $Carp::CarpLevel + 1 |
1129 | and |
1130 | Carp::confess("Improper instantiation of '$obj': you *MUST* call the corresponding constructor"); |
1131 | |
1132 | |
1133 | $obj; |
1134 | }; |
1135 | } |
1136 | |
b1dbf716 |
1137 | 1; |