13 print "# Tests with caller(0)\n";
16 ok( (!@c), "caller(0) in main program" );
18 eval { @c = caller(0) };
19 is( $c[3], "(eval)", "subroutine name in an eval {}" );
20 ok( !$c[4], "hasargs false in an eval {}" );
22 eval q{ @c = (Caller(0))[3] };
23 is( $c[3], "(eval)", "subroutine name in an eval ''" );
24 ok( !$c[4], "hasargs false in an eval ''" );
26 sub { @c = caller(0) } -> ();
27 is( $c[3], "main::__ANON__", "anonymous subroutine name" );
28 ok( $c[4], "hasargs true with anon sub" );
30 # Bug 20020517.003, used to dump core
31 sub foo { @c = caller(0) }
32 my $fooref = delete $::{foo};
34 is( $c[3], "(unknown)", "unknown subroutine name" );
35 ok( $c[4], "hasargs true with unknown sub" );
37 print "# Tests with caller(1)\n";
39 sub f { @c = caller(1) }
43 is( $c[3], "main::callf", "subroutine name" );
44 ok( $c[4], "hasargs true with callf()" );
46 ok( !$c[4], "hasargs false with &callf" );
49 is( $c[3], "(eval)", "subroutine name in an eval {}" );
50 ok( !$c[4], "hasargs false in an eval {}" );
53 is( $c[3], "(eval)", "subroutine name in an eval ''" );
54 ok( !$c[4], "hasargs false in an eval ''" );
57 is( $c[3], "main::__ANON__", "anonymous subroutine name" );
58 ok( $c[4], "hasargs true with anon sub" );
61 my $fooref2 = delete $::{foo2};
63 is( $c[3], "(unknown)", "unknown subroutine name" );
64 ok( $c[4], "hasargs true with unknown sub" );
66 # See if caller() returns the correct warning mask
72 foreach (unpack('W*', $in)) {
73 $out .= sprintf('\x%02x', $_);
80 my ($got, $exp, $desc) = @_;
81 if (! ok($got eq $exp, $desc)) {
82 diag(' got: ' . show_bits($got));
83 diag('expected: ' . show_bits($exp));
90 check_bits( (caller(0))[9], $w, "warnings match caller ($id)");
93 # NB : extend the warning mask values below when new warnings are added
96 BEGIN { check_bits( ${^WARNING_BITS}, "\0" x 12, 'all bits off via "no warnings"' ) }
97 testwarn("\0" x 12, 'no bits');
100 BEGIN { check_bits( ${^WARNING_BITS}, "\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x05", 'default bits on via "use warnings"' ); }
101 BEGIN { testwarn("\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x05", 'all'); }
103 # the warning mask has been extended by warnings::register
104 testwarn("\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x15", 'ahead of w::r');
106 use warnings::register;
107 BEGIN { check_bits( ${^WARNING_BITS}, "\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x15", 'warning bits on via "use warnings::register"' ) }
108 testwarn("\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x15", 'following w::r');
112 # The next two cases test for a bug where caller ignored evals if
113 # the DB::sub glob existed but &DB::sub did not (for example, if
114 # $^P had been set but no debugger has been loaded). The tests
115 # thus assume that there is no &DB::sub: if there is one, they
116 # should both pass no matter whether or not this bug has been
119 my $debugger_test = q<
120 my @stackinfo = caller(0);
121 return scalar @stackinfo;
124 sub pb { return (caller(0))[3] }
126 my $i = eval $debugger_test;
127 is( $i, 11, "do not skip over eval (and caller returns 10 elements)" );
129 is( eval 'pb()', 'main::pb', "actually return the right function name" );
131 my $saved_perldb = $^P;
135 $i = eval $debugger_test;
136 is( $i, 11, 'do not skip over eval even if $^P had been on at some point' );
137 is( eval 'pb()', 'main::pb', 'actually return the right function name even if $^P had been on at some point' );
139 print "# caller can now return the compile time state of %^H\n";
144 my @results = caller($level||0);
145 exists $results[10]->{$key};
151 my @results = caller($level||0);
152 $results[10]->{$key};
155 $::testing_caller = 1;
157 do './op/caller.pl' or die $@;