1 package # hide from PAUSE
7 use constant SPURIOUS_VERSION_CHECK_WARNINGS => ($] < 5.010 ? 1 : 0);
10 use Scalar::Util qw(refaddr weaken);
13 our @EXPORT_OK = qw(sigwarn_silencer modver_gt_or_eq fail_on_internal_wantarray);
15 sub sigwarn_silencer {
18 croak "Expecting a regexp" if ref $pattern ne 'Regexp';
20 my $orig_sig_warn = $SIG{__WARN__} || sub { CORE::warn(@_) };
22 return sub { &$orig_sig_warn unless $_[0] =~ $pattern };
28 croak "Nonsensical module name supplied"
29 if ! defined $mod or ! length $mod;
31 croak "Nonsensical minimum version supplied"
32 if ! defined $ver or $ver =~ /[^0-9\.\_]/;
34 local $SIG{__WARN__} = sigwarn_silencer( qr/\Qisn't numeric in subroutine entry/ )
35 if SPURIOUS_VERSION_CHECK_WARNINGS;
38 eval { $mod->VERSION($ver) } ? 1 : 0;
42 my $list_ctx_ok_stack_marker;
44 sub fail_on_internal_wantarray {
45 return if $list_ctx_ok_stack_marker;
47 if (! defined wantarray) {
48 croak('fail_on_internal_wantarray() needs a tempvar to save the stack marker guard');
52 while ( ( (caller($cf+1))[3] || '' ) =~ / :: (?:
54 # these are public API parts that alter behavior on wantarray
55 search | search_related | slice | search_literal
59 # these are explicitly prefixed, since we only recognize them as valid
60 # escapes when they come from the guts of CDBICompat
61 CDBICompat .*? :: (?: search_where | retrieve_from_sql | retrieve_all )
68 (caller($cf))[0] =~ /^(?:DBIx::Class|DBICx::)/
72 DBIx::Class::Exception->throw( sprintf (
73 "Improper use of %s(0x%x) instance in list context at %s line %d\n\n\tStacktrace starts",
74 ref($obj), refaddr($obj), (caller($cf))[1,2]
75 ), 'with_stacktrace');
79 weaken ( $list_ctx_ok_stack_marker = $mark );