1 package # hide from PAUSE
7 # Temporary - tempextlib
10 require Module::Runtime;
13 # There can be only one of these, make sure we get the bundled part and
14 # *not* something off the site lib
20 if ($INC{Module::Runtime::module_notional_filename($_)}) {
21 die "\nUnable to continue - a part of the bundled templib contents "
22 . "was already loaded (likely an older version from CPAN). "
23 . "Make sure that @{[ __PACKAGE__ ]} is loaded before $_\n\n"
28 our ($HERE) = File::Spec->rel2abs(
29 File::Spec->catdir( (File::Spec->splitpath(__FILE__))[1], '_TempExtlib' )
30 ) =~ /^(.*)$/; # screw you, taint mode
35 use constant SPURIOUS_VERSION_CHECK_WARNINGS => ($] < 5.010 ? 1 : 0);
38 package # hide from pause
46 BROKEN_FORK => ($^O eq 'MSWin32') ? 1 : 0,
48 BROKEN_GOTO => ($] < '5.008003') ? 1 : 0,
50 HAS_ITHREADS => $Config{useithreads} ? 1 : 0,
52 # ::Runmode would only be loaded by DBICTest, which in turn implies t/
53 DBICTEST => eval { DBICTest::RunMode->is_author } ? 1 : 0,
55 # During 5.13 dev cycle HELEMs started to leak on copy
56 # add an escape for these perls ON SMOKERS - a user will still get death
57 PEEPEENESS => ( eval { DBICTest::RunMode->is_smoker } && ($] >= 5.013005 and $] <= 5.013006) ),
59 SHUFFLE_UNORDERED_RESULTSETS => $ENV{DBIC_SHUFFLE_UNORDERED_RESULTSETS} ? 1 : 0,
61 ASSERT_NO_INTERNAL_WANTARRAY => $ENV{DBIC_ASSERT_NO_INTERNAL_WANTARRAY} ? 1 : 0,
63 ASSERT_NO_INTERNAL_INDIRECT_CALLS => $ENV{DBIC_ASSERT_NO_INTERNAL_INDIRECT_CALLS} ? 1 : 0,
65 IV_SIZE => $Config{ivsize},
72 constant->import( OLD_MRO => 1 );
76 constant->import( OLD_MRO => 0 );
80 # FIXME - this is not supposed to be here
81 # Carp::Skip to the rescue soon
82 use DBIx::Class::Carp '^DBIx::Class|^DBICTest';
85 use Scalar::Util qw(weaken blessed reftype);
86 use List::Util qw(first);
88 # DO NOT edit away without talking to riba first, he will just put it back
89 # BEGIN pre-Moo2 import block
91 my $initial_fatal_bits = (${^WARNING_BITS}||'') & $warnings::DeadBits{all};
92 local $ENV{PERL_STRICTURES_EXTRA} = 0;
93 require Sub::Quote; Sub::Quote->import('quote_sub');
94 ${^WARNING_BITS} &= ( $initial_fatal_bits | ~ $warnings::DeadBits{all} );
96 sub qsub ($) { goto "e_sub } # no point depping on new Moo just for this
97 # END pre-Moo2 import block
101 sigwarn_silencer modver_gt_or_eq
102 fail_on_internal_wantarray fail_on_internal_call
103 refdesc refcount hrefaddr is_exception
104 quote_sub qsub perlstring
105 UNRESOLVABLE_CONDITION
108 use constant UNRESOLVABLE_CONDITION => \ '1 = 0';
110 sub sigwarn_silencer ($) {
113 croak "Expecting a regexp" if ref $pattern ne 'Regexp';
115 my $orig_sig_warn = $SIG{__WARN__} || sub { CORE::warn(@_) };
117 return sub { &$orig_sig_warn unless $_[0] =~ $pattern };
120 sub perlstring ($) { q{"}. quotemeta( shift ). q{"} };
122 sub hrefaddr ($) { sprintf '0x%x', &Scalar::Util::refaddr||0 }
125 croak "Expecting a reference" if ! length ref $_[0];
127 # be careful not to trigger stringification,
128 # reuse @_ as a scratch-pad
129 sprintf '%s%s(0x%x)',
130 ( defined( $_[1] = blessed $_[0]) ? "$_[1]=" : '' ),
132 Scalar::Util::refaddr($_[0]),
137 croak "Expecting a reference" if ! length ref $_[0];
140 # No tempvars - must operate on $_[0], otherwise the pad
141 # will count as an extra ref
142 B::svref_2object($_[0])->REFCNT;
145 sub is_exception ($) {
148 # this is not strictly correct - an eval setting $@ to undef
149 # is *not* the same as an eval setting $@ to ''
150 # but for the sake of simplicity assume the following for
152 return 0 unless defined $e;
154 my ($not_blank, $suberror);
158 $not_blank = ($e ne '') ? 1 : 0;
163 if (defined $suberror) {
164 if (length (my $class = blessed($e) )) {
165 carp_unique( sprintf(
166 'External exception class %s implements partial (broken) overloading '
167 . 'preventing its instances from being used in simple ($x eq $y) '
168 . 'comparisons. Given Perl\'s "globally cooperative" exception '
169 . 'handling this type of brokenness is extremely dangerous on '
170 . 'exception objects, as it may (and often does) result in silent '
171 . '"exception substitution". DBIx::Class tries to work around this '
172 . 'as much as possible, but other parts of your software stack may '
173 . 'not be even aware of this. Please submit a bugreport against the '
174 . 'distribution containing %s and in the meantime apply a fix similar '
175 . 'to the one shown at %s, in order to ensure your exception handling '
176 . 'is saner application-wide. What follows is the actual error text '
177 . "as generated by Perl itself:\n\n%s\n ",
180 'http://v.gd/DBIC_overload_tempfix/',
184 # workaround, keeps spice flowing
185 $not_blank = ("$e" ne '') ? 1 : 0;
188 # not blessed yet failed the 'ne'... this makes 0 sense...
197 sub modver_gt_or_eq ($$) {
198 my ($mod, $ver) = @_;
200 croak "Nonsensical module name supplied"
201 if ! defined $mod or ! length $mod;
203 croak "Nonsensical minimum version supplied"
204 if ! defined $ver or $ver =~ /[^0-9\.\_]/;
206 local $SIG{__WARN__} = sigwarn_silencer( qr/\Qisn't numeric in subroutine entry/ )
207 if SPURIOUS_VERSION_CHECK_WARNINGS;
209 croak "$mod does not seem to provide a version (perhaps it never loaded)"
210 unless $mod->VERSION;
213 eval { $mod->VERSION($ver) } ? 1 : 0;
217 my $list_ctx_ok_stack_marker;
219 sub fail_on_internal_wantarray () {
220 return if $list_ctx_ok_stack_marker;
222 if (! defined wantarray) {
223 croak('fail_on_internal_wantarray() needs a tempvar to save the stack marker guard');
227 while ( ( (caller($cf+1))[3] || '' ) =~ / :: (?:
229 # these are public API parts that alter behavior on wantarray
230 search | search_related | slice | search_literal
234 # these are explicitly prefixed, since we only recognize them as valid
235 # escapes when they come from the guts of CDBICompat
236 CDBICompat .*? :: (?: search_where | retrieve_from_sql | retrieve_all )
242 my ($fr, $want, $argdesc);
245 $fr = [ caller($cf) ];
246 $want = ( caller($cf-1) )[5];
247 $argdesc = ref $DB::args[0]
248 ? DBIx::Class::_Util::refdesc($DB::args[0])
254 $want and $fr->[0] =~ /^(?:DBIx::Class|DBICx::)/
256 DBIx::Class::Exception->throw( sprintf (
257 "Improper use of %s instance in list context at %s line %d\n\n Stacktrace starts",
258 $argdesc, @{$fr}[1,2]
259 ), 'with_stacktrace');
263 weaken ( $list_ctx_ok_stack_marker = $mark );
268 sub fail_on_internal_call {
273 $argdesc = ref $DB::args[0]
274 ? DBIx::Class::_Util::refdesc($DB::args[0])
282 $fr->[0] =~ /^(?:DBIx::Class|DBICx::)/
284 $fr->[1] !~ /\b(?:CDBICompat|ResultSetProxy)\b/ # no point touching there
286 DBIx::Class::Exception->throw( sprintf (
287 "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",
288 $fr->[3], $argdesc, @{$fr}[1,2], ( $fr->[6] || do {
291 B::Deparse->new->coderef2text(\&{$fr->[3]})
293 ), 'with_stacktrace');