1 package # hide from PAUSE
4 use DBIx::Class::StartupCheck; # load es early as we can, usually a noop
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;
15 package # hide from pause
28 BROKEN_FORK => (OS_NAME eq 'MSWin32') ? 1 : 0,
30 BROKEN_GOTO => ( PERL_VERSION < 5.008003 ) ? 1 : 0,
32 # perl -MScalar::Util=weaken -e 'weaken( $hash{key} = \"value" )'
33 BROKEN_WEAK_SCALARREF_VALUES => ( PERL_VERSION < 5.008003 ) ? 1 : 0,
35 HAS_ITHREADS => $Config{useithreads} ? 1 : 0,
37 TAINT_MODE => 0 + ${^TAINT}, # tri-state: 0, 1, -1
39 UNSTABLE_DOLLARAT => ( PERL_VERSION < 5.013002 ) ? 1 : 0,
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 { $_ => !!( $ENV{"DBIC_$_"} ) }
47 { substr($_, 5) => !!( $ENV{$_} ) }
49 DBIC_SHUFFLE_UNORDERED_RESULTSETS
50 DBIC_ASSERT_NO_INTERNAL_WANTARRAY
51 DBIC_ASSERT_NO_INTERNAL_INDIRECT_CALLS
52 DBIC_STRESSTEST_UTF8_UPGRADE_GENERATED_COLLAPSER_SOURCE
53 DBIC_STRESSTEST_COLUMN_INFO_UNAWARE_STORAGE
57 IV_SIZE => $Config{ivsize},
60 if ( PERL_VERSION < 5.009_005) {
62 constant->import( OLD_MRO => 1 );
65 # Yes, I know this is a rather PHP-ish name, but please first read
66 # https://metacpan.org/source/BOBTFISH/MRO-Compat-0.12/lib/MRO/Compat.pm#L363-368
68 # Even if we are using Class::C3::XS it still won't work, as doing
69 # defined( *{ "SubClass::"->{$_} }{CODE} )
70 # will set pkg_gen to the same value for SubClass and *ALL PARENTS*
72 *DBIx::Class::_Util::get_real_pkg_gen = sub ($) {
79 # the non-assign-unless-there-is-a-hash is deliberate
80 ( $__describe_class_query_cache->{'!internal!'} || {} )->{$_[0]}{gen} ||= (
81 Math::BigInt->new( '0x' . ( Digest::MD5::md5_hex( join "\0", map {
83 ( $__describe_class_query_cache->{'!internal!'} || {} )->{$_}{methlist} ||= (
89 # RV to be hashed up and turned into a number
94 # stringification should be sufficient, ignore names/refaddr entirely
99 local $SIG{__DIE__} if $SIG{__DIE__};
100 # attributes::get may throw on blessed-false crefs :/
101 eval { @attrs = attributes::get( $_ ); 1 }
102 or warn "Unable to determine attributes of coderef $_ due to the following error: $@";
108 # skip dummy C::C3 helper crefs
109 ! ( ( $Class::C3::MRO{$cur_class} || {} )->{methods}{$_} )
112 ref(\ "${cur_class}::"->{$_} ) ne 'GLOB'
114 defined( *{ "${cur_class}::"->{$_} }{CODE} )
117 ? ( \&{"${cur_class}::$_"} )
120 keys %{ "${cur_class}::" }
126 ( $__describe_class_query_cache->{'!internal!'} || {} )->{$_[0]}{linear_isa}
128 mro::get_linear_isa($_[0])
132 ( $__describe_class_query_cache->{'!internal!'} || {} )->{$_[0]}{is_universal}
134 mro::is_universal($_[0])
136 ( $__describe_class_query_cache->{'!internal!'} || {} )->{UNIVERSAL}{linear_isa}
138 mro::get_linear_isa("UNIVERSAL")
147 constant->import( OLD_MRO => 0 );
148 *DBIx::Class::_Util::get_real_pkg_gen = \&mro::get_pkg_gen;
151 # Both of these are no longer used for anything. However bring
152 # them back after they were purged in 08a8d8f1, as there appear
153 # to be outfits with *COPY PASTED* pieces of lib/DBIx/Class/Storage/*
154 # in their production codebases. There is no point in breaking these
155 # if whatever they used actually continues to work
157 DBIx::Class::_Util::emit_loud_diag(
159 msg => "The @{[ (caller(1))[3] ]} constant is no more - adjust your code"
164 sub DBICTEST () { &$sigh }
165 sub PEEPEENESS () { &$sigh }
168 use constant SPURIOUS_VERSION_CHECK_WARNINGS => ( DBIx::Class::_ENV_::PERL_VERSION < 5.010 ? 1 : 0);
170 # FIXME - this is not supposed to be here
171 # Carp::Skip to the rescue soon
172 use DBIx::Class::Carp '^DBIx::Class|^DBICTest';
176 use Storable 'nfreeze';
177 use Scalar::Util qw(weaken blessed reftype refaddr);
178 use Sub::Quote qw(qsub);
182 # Already correctly prototyped: perlbrew exec perl -MStorable -e 'warn prototype \&Storable::dclone'
183 BEGIN { *deep_clone = \&Storable::dclone }
187 sigwarn_silencer modver_gt_or_eq modver_gt_or_eq_and_lt
188 fail_on_internal_wantarray fail_on_internal_call
189 refdesc refcount hrefaddr set_subname get_subname describe_class_methods
190 scope_guard detected_reinvoked_destructor emit_loud_diag
192 is_exception dbic_internal_try visit_namespaces
193 quote_sub qsub perlstring serialize deep_clone dump_value uniq
195 UNRESOLVABLE_CONDITION
198 use constant UNRESOLVABLE_CONDITION => \ '1 = 0';
200 # Override forcing no_defer, and adding naming consistency checks
201 our %refs_closed_over_by_quote_sub_installed_crefs;
203 Carp::confess( "Anonymous quoting not supported by the DBIC quote_sub override - supply a sub name" ) if
211 Carp::confess( "The DBIC quote_sub override expects sub name '$_[0]' to be fully qualified" )
212 unless (my $stash) = $_[0] =~ /^(.+)::/;
215 "The DBIC sub_quote override does not support 'no_install'"
223 'The DBIC quote_sub override expects the namespace-part of sub name '
224 . "'$_[0]' to match the supplied package argument '$_[3]->{package}'"
228 defined $_[3]->{package}
230 $stash ne $_[3]->{package}
233 my @caller = caller(0);
235 package => $caller[0],
237 warning_bits => $caller[9],
238 hintshash => $caller[10],
241 # explicitly forced for everything
246 # just use a growing counter, no need to perform neither compaction
247 # nor any special ithread-level handling
248 $refs_closed_over_by_quote_sub_installed_crefs
249 { scalar keys %refs_closed_over_by_quote_sub_installed_crefs }
255 ! DBIx::Class::_ENV_::BROKEN_WEAK_SCALARREF_VALUES
259 } values %{ $_[2] || {} };
261 Sub::Quote::quote_sub( $_[0], $_[1], $_[2]||{}, $sq_opts );
264 sub sigwarn_silencer ($) {
267 croak "Expecting a regexp" if ref $pattern ne 'Regexp';
269 my $orig_sig_warn = $SIG{__WARN__} || sub { CORE::warn(@_) };
271 return sub { &$orig_sig_warn unless $_[0] =~ $pattern };
274 sub perlstring ($) { q{"}. quotemeta( shift ). q{"} };
276 sub hrefaddr ($) { sprintf '0x%x', &refaddr||0 }
279 croak "Expecting a reference" if ! length ref $_[0];
281 # be careful not to trigger stringification,
282 # reuse @_ as a scratch-pad
283 sprintf '%s%s(0x%x)',
284 ( defined( $_[1] = blessed $_[0]) ? "$_[1]=" : '' ),
291 croak "Expecting a reference" if ! length ref $_[0];
293 # No tempvars - must operate on $_[0], otherwise the pad
294 # will count as an extra ref
295 B::svref_2object($_[0])->REFCNT;
298 sub visit_namespaces {
299 my $args = { (ref $_[0]) ? %{$_[0]} : @_ };
301 my $visited_count = 1;
303 # A package and a namespace are subtly different things
304 $args->{package} ||= 'main';
305 $args->{package} = 'main' if $args->{package} =~ /^ :: (?: main )? $/x;
306 $args->{package} =~ s/^:://;
308 if ( $args->{action}->($args->{package}) ) {
310 ( ($args->{package} eq 'main') ? '' : $args->{package} )
315 $visited_count += visit_namespaces( %$args, package => $_ ) for
317 # this happens sometimes on %:: traversal
320 { $_ =~ /^(.+?)::$/ ? "$ns$1" : () }
321 do { no strict 'refs'; keys %$ns }
328 # FIXME In another life switch these to a polyfill like the ones in namespace::clean
329 sub get_subname ($) {
330 my $gv = B::svref_2object( $_[0] )->GV;
332 ? ( $gv->STASH->NAME, $gv->NAME )
333 : ( join '::', $gv->STASH->NAME, $gv->NAME )
336 sub set_subname ($$) {
339 splice @_, 0, 1, caller(0) . "::$_[0]"
346 local $Storable::canonical = 1;
351 my( %seen, $seen_undef, $numeric_preserving_copy );
354 ? $seen{ $numeric_preserving_copy = $_ }++
361 local $Data::Dumper::Indent = 1
362 unless defined $Data::Dumper::Indent;
368 require Data::Dumper;
369 my $d = Data::Dumper->new([])
382 $d->Sparseseen(1) if modver_gt_or_eq (
383 'Data::Dumper', '2.136'
388 )->Values([$_[0]])->Dump;
390 $dd_obj->Reset->Values([]);
395 my $seen_loud_screams;
397 my $args = { ref $_[0] eq 'HASH' ? %{$_[0]} : @_ };
399 unless ( defined $args->{msg} and length $args->{msg} ) {
401 msg => "No 'msg' value supplied to emit_loud_diag()"
406 my $msg = "\n$0: $args->{msg}";
408 # when we die - we usually want to keep doing it
409 $args->{emit_dups} = !!$args->{confess}
410 unless exists $args->{emit_dups};
412 local $Carp::CarpLevel =
413 ( $args->{skip_frames} || 0 )
421 my $longmess = Carp::longmess();
423 # different object references will thwart deduplication without this
424 ( my $key = "${msg}\n${longmess}" ) =~ s/\b0x[0-9a-f]+\b/0x.../gi;
426 return $seen_loud_screams->{$key} if
427 $seen_loud_screams->{$key}++
433 unless $msg =~ /\n\z/;
435 print STDERR "$msg\n"
437 print STDOUT "\n!!!STDERR ISN'T WRITABLE!!!:$msg\n";
439 return $seen_loud_screams->{$key}
440 unless $args->{confess};
442 # increment *again*, because... Carp.
445 # not $msg - Carp will reapply the longmess on its own
446 Carp::confess($args->{msg});
451 ### This is *NOT* boolean.pm - deliberately not using a singleton
454 package # hide from pause
455 DBIx::Class::_Util::_Bool;
457 bool => sub { ${$_[0]} },
461 sub true () { my $x = 1; bless \$x, "DBIx::Class::_Util::_Bool" }
462 sub false () { my $x = 0; bless \$x, "DBIx::Class::_Util::_Bool" }
464 sub scope_guard (&) {
465 croak 'Calling scope_guard() in void context makes no sense'
466 if ! defined wantarray;
468 # no direct blessing of coderefs - DESTROY is buggy on those
469 bless [ $_[0] ], 'DBIx::Class::_Util::ScopeGuard';
473 DBIx::Class::_Util::ScopeGuard;
476 &DBIx::Class::_Util::detected_reinvoked_destructor;
478 local $@ if DBIx::Class::_ENV_::UNSTABLE_DOLLARAT;
485 DBIx::Class::_Util::emit_loud_diag(
487 msg => "Execution of scope guard $_[0] resulted in the non-trappable exception:\n\n$@\n "
493 sub is_exception ($) {
497 # this is not strictly correct - an eval setting $@ to undef
498 # is *not* the same as an eval setting $@ to ''
499 # but for the sake of simplicity assume the following for
501 return 0 unless defined $e;
503 my ($not_blank, $suberror);
505 local $SIG{__DIE__} if $SIG{__DIE__};
508 # The ne() here is deliberate - a plain length($e), or worse "$e" ne
509 # will entirely obviate the need for the encolsing eval{}, as the
510 # condition we guard against is a missing fallback overload
511 $not_blank = ( $e ne '' );
516 if (defined $suberror) {
517 if (length (my $class = blessed($e) )) {
518 carp_unique( sprintf(
519 'External exception class %s implements partial (broken) overloading '
520 . 'preventing its instances from being used in simple ($x eq $y) '
521 . 'comparisons. Given Perl\'s "globally cooperative" exception '
522 . 'handling this type of brokenness is extremely dangerous on '
523 . 'exception objects, as it may (and often does) result in silent '
524 . '"exception substitution". DBIx::Class tries to work around this '
525 . 'as much as possible, but other parts of your software stack may '
526 . 'not be even aware of this. Please submit a bugreport against the '
527 . 'distribution containing %s and in the meantime apply a fix similar '
528 . 'to the one shown at %s, in order to ensure your exception handling '
529 . 'is saner application-wide. What follows is the actual error text '
530 . "as generated by Perl itself:\n\n%s\n ",
533 'http://v.gd/DBIC_overload_tempfix/',
537 # workaround, keeps spice flowing
538 $not_blank = !!( length $e );
541 # not blessed yet failed the 'ne'... this makes 0 sense...
547 # a ref evaluating to '' is definitively a "null object"
550 length( my $class = ref $e )
553 "Objects of external exception class '$class' stringify to '' (the "
554 . 'empty string), implementing the so called null-object-pattern. '
555 . 'Given Perl\'s "globally cooperative" exception handling using this '
556 . 'class of exceptions is extremely dangerous, as it may (and often '
557 . 'does) result in silent discarding of errors. DBIx::Class tries to '
558 . 'work around this as much as possible, but other parts of your '
559 . 'software stack may not be even aware of the problem. Please submit '
560 . "a bugreport against the distribution containing '$class'",
572 # Recreate the logic of try(), while reusing the catch()/finally() as-is
574 # FIXME: We need to move away from Try::Tiny entirely (way too heavy and
575 # yes, shows up ON TOP of profiles) but this is a batle for another maint
576 sub dbic_internal_try (&;@) {
578 my $try_cref = shift;
579 my $catch_cref = undef; # apparently this is a thing... https://rt.perl.org/Public/Bug/Display.html?id=119311
583 if( ref($arg) eq 'Try::Tiny::Catch' ) {
585 croak 'dbic_internal_try() may not be followed by multiple catch() blocks'
590 elsif ( ref($arg) eq 'Try::Tiny::Finally' ) {
591 croak 'dbic_internal_try() does not support finally{}';
595 'dbic_internal_try() encountered an unexpected argument '
596 . "'@{[ defined $arg ? $arg : 'UNDEF' ]}' - perhaps "
597 . 'a missing semi-colon before or ' # trailing space important
602 my $wantarray = wantarray;
603 my $preexisting_exception = $@;
606 my $all_good = eval {
607 $@ = $preexisting_exception;
609 local $callstack_state->{in_internal_try} = 1
610 unless $callstack_state->{in_internal_try};
612 # always unset - someone may have snuck it in
613 local $SIG{__DIE__} if $SIG{__DIE__};
616 @ret = $try_cref->();
618 elsif( defined $wantarray ) {
619 $ret[0] = $try_cref->();
629 $@ = $preexisting_exception;
632 return $wantarray ? @ret : $ret[0]
634 elsif ( $catch_cref ) {
636 return $catch_cref->($exception);
643 sub in_internal_try { !! $callstack_state->{in_internal_try} }
647 my $destruction_registry = {};
649 sub DBIx::Class::__Util_iThreads_handler__::CLONE {
650 %$destruction_registry = map {
652 ? ( refaddr($_) => $_ )
654 } values %$destruction_registry;
656 weaken($_) for values %$destruction_registry;
658 # Dummy NEXTSTATE ensuring the all temporaries on the stack are garbage
659 # collected before leaving this scope. Depending on the code above, this
660 # may very well be just a preventive measure guarding future modifications
664 # This is almost invariably invoked from within DESTROY
665 # throwing exceptions won't work
666 sub detected_reinvoked_destructor {
668 # quick "garbage collection" pass - prevents the registry
669 # from slowly growing with a bunch of undef-valued keys
670 defined $destruction_registry->{$_} or delete $destruction_registry->{$_}
671 for keys %$destruction_registry;
673 if (! length ref $_[0]) {
676 msg => (caller(0))[3] . '() expects a blessed reference'
678 return undef; # don't know wtf to do
680 elsif (! defined $destruction_registry->{ my $addr = refaddr($_[0]) } ) {
681 weaken( $destruction_registry->{$addr} = $_[0] );
685 emit_loud_diag( msg => sprintf (
686 'Preventing *MULTIPLE* DESTROY() invocations on %s - an *EXTREMELY '
687 . 'DANGEROUS* condition which is *ALMOST CERTAINLY GLOBAL* within your '
688 . 'application, affecting *ALL* classes without active protection against '
689 . 'this. Diagnose and fix the root cause ASAP!!!%s',
691 ( ( $INC{'Devel/StackTrace.pm'} and ! do { local $@; eval { Devel::StackTrace->VERSION(2) } } )
692 ? " (likely culprit Devel::StackTrace\@@{[ Devel::StackTrace->VERSION ]} found in %INC, http://is.gd/D_ST_refcap)"
702 my $module_name_rx = qr/ \A [A-Z_a-z] [0-9A-Z_a-z]* (?: :: [0-9A-Z_a-z]+ )* \z /x;
703 my $ver_rx = qr/ \A [0-9]+ (?: \. [0-9]+ )* (?: \_ [0-9]+ )* \z /x;
705 sub modver_gt_or_eq ($$) {
706 my ($mod, $ver) = @_;
708 croak "Nonsensical module name supplied"
709 if ! defined $mod or $mod !~ $module_name_rx;
711 croak "Nonsensical minimum version supplied"
712 if ! defined $ver or $ver !~ $ver_rx;
715 my $ver_cache = ${"${mod}::__DBIC_MODULE_VERSION_CHECKS__"} ||= ( $mod->VERSION
717 : croak "$mod does not seem to provide a version (perhaps it never loaded)"
720 ! defined $ver_cache->{$ver}
722 $ver_cache->{$ver} = do {
724 local $SIG{__WARN__} = sigwarn_silencer( qr/\Qisn't numeric in subroutine entry/ )
725 if SPURIOUS_VERSION_CHECK_WARNINGS;
727 local $SIG{__DIE__} if $SIG{__DIE__};
729 eval { $mod->VERSION($ver) } ? 1 : 0;
735 sub modver_gt_or_eq_and_lt ($$$) {
736 my ($mod, $v_ge, $v_lt) = @_;
738 croak "Nonsensical maximum version supplied"
739 if ! defined $v_lt or $v_lt !~ $ver_rx;
742 modver_gt_or_eq($mod, $v_ge)
744 ! modver_gt_or_eq($mod, $v_lt)
750 sub describe_class_methods {
752 ref $_[0] eq 'HASH' ? $_[0]
753 : ( @_ == 1 and ! length ref $_[0] ) ? { class => $_[0] }
757 my ($class, $requested_mro) = @{$args}{qw( class use_mro )};
759 croak "Expecting a class name either as the sole argument or a 'class' option"
760 if not defined $class or $class !~ $module_name_rx;
763 "The supplied 'class' argument is tainted: this is *extremely* "
764 . 'dangerous, fix your code ASAP!!! ( for more details read through '
765 . 'https://is.gd/perl_mro_taint_wtf )'
767 DBIx::Class::_ENV_::TAINT_MODE
769 Scalar::Util::tainted($class)
772 $requested_mro ||= mro::get_mro($class);
774 # mro::set_mro() does not bump pkg_gen - WHAT THE FUCK?!
775 my $query_cache_key = "$class|$requested_mro";
777 my $internal_cache_key =
778 ( mro::get_mro($class) eq $requested_mro )
783 # use a cache on old MRO, since while we are recursing in this function
784 # nothing can possibly change (the speedup is immense)
785 # (yes, people could be tie()ing the stash and adding methods on access
786 # but there is a limit to how much crazy can be supported here)
788 # we use the cache for linear_isa lookups on new MRO as well - it adds
789 # a *tiny* speedup, and simplifies the code a lot
791 local $__describe_class_query_cache->{'!internal!'} = {}
792 unless $__describe_class_query_cache->{'!internal!'};
796 $my_gen += get_real_pkg_gen($_) for ( my @full_ISA = (
799 $__describe_class_query_cache->{'!internal!'}{$internal_cache_key}{linear_isa}
801 mro::get_linear_isa($class, $requested_mro)
805 $__describe_class_query_cache->{'!internal!'}{$class}{is_universal}
807 mro::is_universal($class)
809 $__describe_class_query_cache->{'!internal!'}{UNIVERSAL}{linear_isa}
811 mro::get_linear_isa("UNIVERSAL")
816 my $slot = $__describe_class_query_cache->{$query_cache_key} ||= {};
818 unless ( ($slot->{cumulative_gen}||0) == $my_gen ) {
823 isa => { map { $_ => 1 } @full_ISA },
825 @{ $__describe_class_query_cache->{'!internal!'}{$internal_cache_key}{linear_isa} }
826 [ 1 .. $#{$__describe_class_query_cache->{'!internal!'}{$internal_cache_key}{linear_isa}} ]
829 type => $requested_mro,
830 is_c3 => ( ($requested_mro eq 'c3') ? 1 : 0 ),
832 cumulative_gen => $my_gen,
835 # remove ourselves from ISA
838 # ensure the cache is populated for the parents, code below can then
839 # efficiently operate over the query_cache directly
840 describe_class_methods($_) for reverse @full_ISA;
844 # combine full ISA-order inherited and local method list into a
848 unshift @{ $slot->{methods}{$_->{name}} }, $_
853 $_->{via_class} ne $class
855 $slot->{methods_defined_in_class}{$_->{name}} = $_
860 @{ $slot->{methods}{$_->{name}} } > 1
864 $slot->{methods_with_supers}{$_->{name}} = $slot->{methods}{$_->{name}}
868 # what describe_class_methods for @full_ISA produced above
870 $__describe_class_query_cache->{$_}{methods_defined_in_class} || {}
871 } } map { "$_|" . mro::get_mro($_) } reverse @full_ISA ),
873 # our own non-cleaned subs + their attributes
876 # need to account for dummy helper crefs under OLD_MRO
878 ! DBIx::Class::_ENV_::OLD_MRO
880 ! ( ( $Class::C3::MRO{$class} || {} )->{methods}{$_} )
883 # these 2 OR-ed checks are sufficient for 5.10+
885 ref(\ "${class}::"->{$_} ) ne 'GLOB'
887 defined( *{ "${class}::"->{$_} }{CODE} )
892 attributes => { map { $_ => 1 } do {
895 local $SIG{__DIE__} if $SIG{__DIE__};
896 # attributes::get may throw on blessed-false crefs :/
897 eval { @attrs = attributes::get( \&{"${class}::${_}"} ); 1 }
898 or warn "Unable to determine attributes of the \\&${class}::$_ method due to following error: $@";
903 } keys %{"${class}::"} )
907 # recalculate the pkg_gen on newer perls under Taint mode,
908 # because of shit like:
909 # perl -T -Mmro -e 'package Foo; sub bar {}; defined( *{ "Foo::"->{bar}}{CODE} ) and warn mro::get_pkg_gen("Foo") for (1,2,3)'
912 ! DBIx::Class::_ENV_::OLD_MRO
914 DBIx::Class::_ENV_::TAINT_MODE
917 $slot->{cumulative_gen} = 0;
918 $slot->{cumulative_gen} += get_real_pkg_gen($_)
919 for $class, @full_ISA;
930 # Why not just use some higher-level module or at least File::Spec here?
932 # 1) This is a *very* rarely used function, and the deptree is large
933 # enough already as it is
935 # 2) (more importantly) Our tooling is utter shit in this area. There
936 # is no comprehensive support for UNC paths in PathTools and there
937 # are also various small bugs in representation across different
938 # path-manipulation CPAN offerings.
940 # Since this routine is strictly used for logical path processing (it
941 # *must* be able to work with not-yet-existing paths), use this seemingly
942 # simple but I *think* complete implementation to feed to other consumers
944 # If bugs are ever uncovered in this routine, *YOU ARE URGED TO RESIST*
945 # the impulse to bring in an external dependency. During runtime there
946 # is exactly one spot that could potentially maybe once in a blue moon
947 # use this function. Keep it lean.
950 ( $_[0] =~ m{ [\/\\] ( \.{0,2} ) ( [\/\\]* ) \z }x )
954 ( ( length($1) and ! length($2) ) ? '/' : '' )
961 File::Spec->catpath (
962 ( File::Spec->splitpath( "$_[0]" ) )[0,1],
971 # do not ask for a recent version, use 1.x API calls
972 File::Path::mkpath([ "$_[0]" ]); # File::Path does not like objects
977 my $list_ctx_ok_stack_marker;
979 sub fail_on_internal_wantarray () {
980 return if $list_ctx_ok_stack_marker;
982 if (! defined wantarray) {
983 croak('fail_on_internal_wantarray() needs a tempvar to save the stack marker guard');
987 while ( ( (CORE::caller($cf+1))[3] || '' ) =~ / :: (?:
989 # these are public API parts that alter behavior on wantarray
990 search | search_related | slice | search_literal
994 # these are explicitly prefixed, since we only recognize them as valid
995 # escapes when they come from the guts of CDBICompat
996 CDBICompat .*? :: (?: search_where | retrieve_from_sql | retrieve_all )
1002 my ($fr, $want, $argdesc);
1005 $fr = [ CORE::caller($cf) ];
1006 $want = ( CORE::caller($cf-1) )[5];
1007 $argdesc = ref $DB::args[0]
1008 ? DBIx::Class::_Util::refdesc($DB::args[0])
1014 $want and $fr->[0] =~ /^(?:DBIx::Class|DBICx::)/
1016 DBIx::Class::Exception->throw( sprintf (
1017 "Improper use of %s instance in list context at %s line %d\n\n Stacktrace starts",
1018 $argdesc, @{$fr}[1,2]
1019 ), 'with_stacktrace');
1022 weaken( $list_ctx_ok_stack_marker = my $mark = [] );
1028 sub fail_on_internal_call {
1032 $fr = [ CORE::caller(1) ];
1033 $argdesc = ref $DB::args[0]
1034 ? DBIx::Class::_Util::refdesc($DB::args[0])
1035 : ( $DB::args[0] . '' )
1040 # need to make allowance for a proxy-yet-direct call
1042 $fr->[0] eq 'DBIx::Class::ResultSourceProxy'
1044 @fr2 = (CORE::caller(2))
1047 ( $fr->[3] =~ /([^:])+$/ )[0]
1049 ( $fr2[3] =~ /([^:])+$/ )[0]
1059 $check_fr->[0] =~ /^(?:DBIx::Class|DBICx::)/
1061 $check_fr->[1] !~ /\b(?:CDBICompat|ResultSetProxy)\b/ # no point touching there
1063 DBIx::Class::Exception->throw( sprintf (
1064 "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",
1065 $fr->[3], $argdesc, @{$fr}[1,2], ( $fr->[6] || do {
1068 B::Deparse->new->coderef2text(\&{$fr->[3]})
1070 ), 'with_stacktrace');