require 'test.pl';
use strict qw(refs subs);
-plan (89);
+plan(138);
# Test glob operations.
$BAZ = "hit";
is ($$$FOO, 'hit');
+# test that ref(vstring) makes sense
+my $vstref = \v1;
+is (ref($vstref), "VSTRING", "ref(vstr) eq VSTRING");
+like ( $vstref, qr/VSTRING\(0x[0-9a-f]+\)/, '\vstr is also VSTRING');
+
# Test references to real arrays.
my $test = curr_test();
'Accessing via the UTF8 byte sequence gives nothing');
}
-TODO: {
+{
no strict 'refs';
$name1 = "\0Chalk";
$name2 = "\0Cheese";
isnt ($name1, $name2, "They differ");
- is ($$name1, undef, 'Nothing before we start');
+ is ($$name1, undef, 'Nothing before we start (scalars)');
is ($$name2, undef, 'Nothing before we start');
- $$name2 = "Yummy";
+ $$name1 = "Yummy";
is ($$name1, "Yummy", 'Accessing via the correct name works');
- local $TODO = "NUL bytes truncate in symrefs";
is ($$name2, undef,
'Accessing via a different NUL-containing name gives nothing');
+ # defined uses a different code path
+ ok (defined $$name1, 'defined via the correct name works');
+ ok (!defined $$name2,
+ 'defined via a different NUL-containing name gives nothing');
+
+ is ($name1->[0], undef, 'Nothing before we start (arrays)');
+ is ($name2->[0], undef, 'Nothing before we start');
+ $name1->[0] = "Yummy";
+ is ($name1->[0], "Yummy", 'Accessing via the correct name works');
+ is ($name2->[0], undef,
+ 'Accessing via a different NUL-containing name gives nothing');
+ ok (defined $name1->[0], 'defined via the correct name works');
+ ok (!defined$name2->[0],
+ 'defined via a different NUL-containing name gives nothing');
+
+ my (undef, $one) = @{$name1}[2,3];
+ my (undef, $two) = @{$name2}[2,3];
+ is ($one, undef, 'Nothing before we start (array slices)');
+ is ($two, undef, 'Nothing before we start');
+ @{$name1}[2,3] = ("Very", "Yummy");
+ (undef, $one) = @{$name1}[2,3];
+ (undef, $two) = @{$name2}[2,3];
+ is ($one, "Yummy", 'Accessing via the correct name works');
+ is ($two, undef,
+ 'Accessing via a different NUL-containing name gives nothing');
+ ok (defined $one, 'defined via the correct name works');
+ ok (!defined $two,
+ 'defined via a different NUL-containing name gives nothing');
+
+ is ($name1->{PWOF}, undef, 'Nothing before we start (hashes)');
+ is ($name2->{PWOF}, undef, 'Nothing before we start');
+ $name1->{PWOF} = "Yummy";
+ is ($name1->{PWOF}, "Yummy", 'Accessing via the correct name works');
+ is ($name2->{PWOF}, undef,
+ 'Accessing via a different NUL-containing name gives nothing');
+ ok (defined $name1->{PWOF}, 'defined via the correct name works');
+ ok (!defined $name2->{PWOF},
+ 'defined via a different NUL-containing name gives nothing');
+
+ my (undef, $one) = @{$name1}{'SNIF', 'BEEYOOP'};
+ my (undef, $two) = @{$name2}{'SNIF', 'BEEYOOP'};
+ is ($one, undef, 'Nothing before we start (hash slices)');
+ is ($two, undef, 'Nothing before we start');
+ @{$name1}{'SNIF', 'BEEYOOP'} = ("Very", "Yummy");
+ (undef, $one) = @{$name1}{'SNIF', 'BEEYOOP'};
+ (undef, $two) = @{$name2}{'SNIF', 'BEEYOOP'};
+ is ($one, "Yummy", 'Accessing via the correct name works');
+ is ($two, undef,
+ 'Accessing via a different NUL-containing name gives nothing');
+ ok (defined $one, 'defined via the correct name works');
+ ok (!defined $two,
+ 'defined via a different NUL-containing name gives nothing');
+
+ $name1 = "Left"; $name2 = "Left\0Right";
+ my $glob2 = *{$name2};
+
+ is ($glob1, undef, "We get different typeglobs. In fact, undef");
+
+ *{$name1} = sub {"One"};
+ *{$name2} = sub {"Two"};
+
+ is (&{$name1}, "One");
+ is (&{$name2}, "Two");
+}
+
+# test derefs after list slice
+
+is ( ({foo => "bar"})[0]{foo}, "bar", 'hash deref from list slice w/o ->' );
+is ( ({foo => "bar"})[0]->{foo}, "bar", 'hash deref from list slice w/ ->' );
+is ( ([qw/foo bar/])[0][1], "bar", 'array deref from list slice w/o ->' );
+is ( ([qw/foo bar/])[0]->[1], "bar", 'array deref from list slice w/ ->' );
+is ( (sub {"bar"})[0](), "bar", 'code deref from list slice w/o ->' );
+is ( (sub {"bar"})[0]->(), "bar", 'code deref from list slice w/ ->' );
+
+# deref on empty list shouldn't autovivify
+{
+ local $@;
+ eval { ()[0]{foo} };
+ like ( "$@", "Can't use an undefined value as a HASH reference",
+ "deref of undef from list slice fails" );
+}
+
+# test dereferencing errors
+{
+ format STDERR =
+.
+ my $ref;
+ foreach $ref (*STDOUT{IO}, *STDERR{FORMAT}) {
+ eval q/ $$ref /;
+ like($@, qr/Not a SCALAR reference/, "Scalar dereference");
+ eval q/ @$ref /;
+ like($@, qr/Not an ARRAY reference/, "Array dereference");
+ eval q/ %$ref /;
+ like($@, qr/Not a HASH reference/, "Hash dereference");
+ eval q/ &$ref /;
+ like($@, qr/Not a CODE reference/, "Code dereference");
+ }
+
+ $ref = *STDERR{FORMAT};
+ eval q/ *$ref /;
+ like($@, qr/Not a GLOB reference/, "Glob dereference");
+
+ $ref = *STDOUT{IO};
+ eval q/ *$ref /;
+ is($@, '', "Glob dereference of PVIO is acceptable");
+
+ is($ref, *{$ref}{IO}, "IO slot of the temporary glob is set correctly");
}
# Bit of a hack to make test.pl happy. There are 3 more tests after it leaves.