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(modver_gt_or_eq fail_on_internal_wantarray);
18 croak "Nonsensical module name supplied"
19 if ! defined $mod or ! length $mod;
21 croak "Nonsensical minimum version supplied"
22 if ! defined $ver or $ver =~ /[^0-9\.\_]/;
24 local $SIG{__WARN__} = do {
25 my $orig_sig_warn = $SIG{__WARN__} || sub { warn @_ };
27 $orig_sig_warn->(@_) unless $_[0] =~ /\Qisn't numeric in subroutine entry/
29 } if SPURIOUS_VERSION_CHECK_WARNINGS;
32 eval { $mod->VERSION($ver) } ? 1 : 0;
36 my $list_ctx_ok_stack_marker;
38 sub fail_on_internal_wantarray {
39 return if $list_ctx_ok_stack_marker;
41 if (! defined wantarray) {
42 croak('fail_on_internal_wantarray() needs a tempvar to save the stack marker guard');
46 while ( ( (caller($cf+1))[3] || '' ) =~ / :: (?:
48 # these are public API parts that alter behavior on wantarray
49 search | search_related | slice | search_literal
53 # these are explicitly prefixed, since we only recognize them as valid
54 # escapes when they come from the guts of CDBICompat
55 CDBICompat .*? :: (?: search_where | retrieve_from_sql | retrieve_all )
62 (caller($cf))[0] =~ /^(?:DBIx::Class|DBICx::)/
66 DBIx::Class::Exception->throw( sprintf (
67 "Improper use of %s(0x%x) instance in list context at %s line %d\n\n\tStacktrace starts",
68 ref($obj), refaddr($obj), (caller($cf))[1,2]
69 ), 'with_stacktrace');
73 weaken ( $list_ctx_ok_stack_marker = $mark );