1 package # hide from PAUSE
7 use constant SPURIOUS_VERSION_CHECK_WARNINGS => (
8 ( $ENV{DBICTEST_VERSION_WARNS_INDISCRIMINATELY} or $] < 5.010 )
14 package # hide from pause
22 BROKEN_FORK => ($^O eq 'MSWin32') ? 1 : 0,
24 BROKEN_GOTO => ($] < '5.008003') ? 1 : 0,
26 HAS_ITHREADS => $Config{useithreads} ? 1 : 0,
28 DBICTEST => $INC{"DBICTest/Util.pm"} ? 1 : 0,
30 # During 5.13 dev cycle HELEMs started to leak on copy
31 # add an escape for these perls ON SMOKERS - a user will still get death
32 PEEPEENESS => ( eval { DBICTest::RunMode->is_smoker } && ($] >= 5.013005 and $] <= 5.013006) ),
34 SHUFFLE_UNORDERED_RESULTSETS => $ENV{DBIC_SHUFFLE_UNORDERED_RESULTSETS} ? 1 : 0,
36 ASSERT_NO_INTERNAL_WANTARRAY => $ENV{DBIC_ASSERT_NO_INTERNAL_WANTARRAY} ? 1 : 0,
38 ASSERT_NO_INTERNAL_INDIRECT_CALLS => $ENV{DBIC_ASSERT_NO_INTERNAL_INDIRECT_CALLS} ? 1 : 0,
40 STRESSTEST_UTF8_UPGRADE_GENERATED_COLLAPSER_SOURCE => $ENV{DBIC_STRESSTEST_UTF8_UPGRADE_GENERATED_COLLAPSER_SOURCE} ? 1 : 0,
42 IV_SIZE => $Config{ivsize},
49 constant->import( OLD_MRO => 1 );
53 constant->import( OLD_MRO => 0 );
57 # FIXME - this is not supposed to be here
58 # Carp::Skip to the rescue soon
59 use DBIx::Class::Carp '^DBIx::Class|^DBICTest';
63 use Storable 'nfreeze';
64 use Scalar::Util qw(weaken blessed reftype refaddr);
65 use List::Util qw(first);
66 use Sub::Quote qw(qsub quote_sub);
70 sigwarn_silencer modver_gt_or_eq modver_gt_or_eq_and_lt
71 fail_on_internal_wantarray fail_on_internal_call
72 refdesc refcount hrefaddr is_exception detected_reinvoked_destructor
73 quote_sub qsub perlstring serialize
74 UNRESOLVABLE_CONDITION
77 use constant UNRESOLVABLE_CONDITION => \ '1 = 0';
79 sub sigwarn_silencer ($) {
82 croak "Expecting a regexp" if ref $pattern ne 'Regexp';
84 my $orig_sig_warn = $SIG{__WARN__} || sub { CORE::warn(@_) };
86 return sub { &$orig_sig_warn unless $_[0] =~ $pattern };
89 sub perlstring ($) { q{"}. quotemeta( shift ). q{"} };
91 sub hrefaddr ($) { sprintf '0x%x', &refaddr||0 }
94 croak "Expecting a reference" if ! length ref $_[0];
96 # be careful not to trigger stringification,
97 # reuse @_ as a scratch-pad
99 ( defined( $_[1] = blessed $_[0]) ? "$_[1]=" : '' ),
106 croak "Expecting a reference" if ! length ref $_[0];
108 # No tempvars - must operate on $_[0], otherwise the pad
109 # will count as an extra ref
110 B::svref_2object($_[0])->REFCNT;
114 local $Storable::canonical = 1;
118 sub is_exception ($) {
121 # this is not strictly correct - an eval setting $@ to undef
122 # is *not* the same as an eval setting $@ to ''
123 # but for the sake of simplicity assume the following for
125 return 0 unless defined $e;
127 my ($not_blank, $suberror);
131 $not_blank = ($e ne '') ? 1 : 0;
136 if (defined $suberror) {
137 if (length (my $class = blessed($e) )) {
138 carp_unique( sprintf(
139 'External exception class %s implements partial (broken) overloading '
140 . 'preventing its instances from being used in simple ($x eq $y) '
141 . 'comparisons. Given Perl\'s "globally cooperative" exception '
142 . 'handling this type of brokenness is extremely dangerous on '
143 . 'exception objects, as it may (and often does) result in silent '
144 . '"exception substitution". DBIx::Class tries to work around this '
145 . 'as much as possible, but other parts of your software stack may '
146 . 'not be even aware of this. Please submit a bugreport against the '
147 . 'distribution containing %s and in the meantime apply a fix similar '
148 . 'to the one shown at %s, in order to ensure your exception handling '
149 . 'is saner application-wide. What follows is the actual error text '
150 . "as generated by Perl itself:\n\n%s\n ",
153 'http://v.gd/DBIC_overload_tempfix/',
157 # workaround, keeps spice flowing
158 $not_blank = ("$e" ne '') ? 1 : 0;
161 # not blessed yet failed the 'ne'... this makes 0 sense...
171 my $destruction_registry = {};
174 $destruction_registry = { map
175 { defined $_ ? ( refaddr($_) => $_ ) : () }
176 values %$destruction_registry
180 # This is almost invariably invoked from within DESTROY
181 # throwing exceptions won't work
182 sub detected_reinvoked_destructor {
184 # quick "garbage collection" pass - prevents the registry
185 # from slowly growing with a bunch of undef-valued keys
186 defined $destruction_registry->{$_} or delete $destruction_registry->{$_}
187 for keys %$destruction_registry;
189 if (! length ref $_[0]) {
190 printf STDERR '%s() expects a blessed reference %s',
194 return undef; # don't know wtf to do
196 elsif (! defined $destruction_registry->{ my $addr = refaddr($_[0]) } ) {
197 weaken( $destruction_registry->{$addr} = $_[0] );
201 carp_unique ( sprintf (
202 'Preventing *MULTIPLE* DESTROY() invocations on %s - an *EXTREMELY '
203 . 'DANGEROUS* condition which is *ALMOST CERTAINLY GLOBAL* within your '
204 . 'application, affecting *ALL* classes without active protection against '
205 . 'this. Diagnose and fix the root cause ASAP!!!%s',
207 ( ( $INC{'Devel/StackTrace.pm'} and ! do { local $@; eval { Devel::StackTrace->VERSION(2) } } )
208 ? " (likely culprit Devel::StackTrace\@@{[ Devel::StackTrace->VERSION ]} found in %INC, http://is.gd/D_ST_refcap)"
218 sub modver_gt_or_eq ($$) {
219 my ($mod, $ver) = @_;
221 croak "Nonsensical module name supplied"
222 if ! defined $mod or ! length $mod;
224 croak "Nonsensical minimum version supplied"
225 if ! defined $ver or $ver =~ /[^0-9\.\_]/;
227 local $SIG{__WARN__} = sigwarn_silencer( qr/\Qisn't numeric in subroutine entry/ )
228 if SPURIOUS_VERSION_CHECK_WARNINGS;
230 croak "$mod does not seem to provide a version (perhaps it never loaded)"
231 unless $mod->VERSION;
234 eval { $mod->VERSION($ver) } ? 1 : 0;
237 sub modver_gt_or_eq_and_lt ($$$) {
238 my ($mod, $v_ge, $v_lt) = @_;
240 croak "Nonsensical maximum version supplied"
241 if ! defined $v_lt or $v_lt =~ /[^0-9\.\_]/;
244 modver_gt_or_eq($mod, $v_ge)
246 ! modver_gt_or_eq($mod, $v_lt)
251 my $list_ctx_ok_stack_marker;
253 sub fail_on_internal_wantarray () {
254 return if $list_ctx_ok_stack_marker;
256 if (! defined wantarray) {
257 croak('fail_on_internal_wantarray() needs a tempvar to save the stack marker guard');
261 while ( ( (caller($cf+1))[3] || '' ) =~ / :: (?:
263 # these are public API parts that alter behavior on wantarray
264 search | search_related | slice | search_literal
268 # these are explicitly prefixed, since we only recognize them as valid
269 # escapes when they come from the guts of CDBICompat
270 CDBICompat .*? :: (?: search_where | retrieve_from_sql | retrieve_all )
276 my ($fr, $want, $argdesc);
279 $fr = [ caller($cf) ];
280 $want = ( caller($cf-1) )[5];
281 $argdesc = ref $DB::args[0]
282 ? DBIx::Class::_Util::refdesc($DB::args[0])
288 $want and $fr->[0] =~ /^(?:DBIx::Class|DBICx::)/
290 DBIx::Class::Exception->throw( sprintf (
291 "Improper use of %s instance in list context at %s line %d\n\n Stacktrace starts",
292 $argdesc, @{$fr}[1,2]
293 ), 'with_stacktrace');
297 weaken ( $list_ctx_ok_stack_marker = $mark );
302 sub fail_on_internal_call {
307 $argdesc = ref $DB::args[0]
308 ? DBIx::Class::_Util::refdesc($DB::args[0])
316 $fr->[0] =~ /^(?:DBIx::Class|DBICx::)/
318 $fr->[1] !~ /\b(?:CDBICompat|ResultSetProxy)\b/ # no point touching there
320 DBIx::Class::Exception->throw( sprintf (
321 "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",
322 $fr->[3], $argdesc, @{$fr}[1,2], ( $fr->[6] || do {
325 B::Deparse->new->coderef2text(\&{$fr->[3]})
327 ), 'with_stacktrace');