3 # Regression tests for attributes.pm and the C< : attrs> syntax.
6 if ($ENV{PERL_CORE_MINITEST}) {
7 print "1..0 # skip: miniperl can't load attributes\n";
19 $SIG{__WARN__} = sub { die @_ };
26 our $anon1; eval_ok '$anon1 = sub : method { $_[0]++ }';
28 eval 'sub e1 ($) : plugh ;';
29 like $@, qr/^Invalid CODE attributes?: ["']?plugh["']? at/;
31 eval 'sub e2 ($) : plugh(0,0) xyzzy ;';
32 like $@, qr/^Invalid CODE attributes: ["']?plugh\(0,0\)["']? /;
34 eval 'sub e3 ($) : plugh(0,0 xyzzy ;';
35 like $@, qr/Unterminated attribute parameter in attribute list at/;
37 eval 'sub e4 ($) : plugh + xyzzy ;';
38 like $@, qr/Invalid separator character '[+]' in attribute list at/;
40 eval_ok 'my main $x : = 0;';
41 eval_ok 'my $x : = 0;';
43 eval_ok 'my ($x) : = 0;';
45 eval_ok 'my ($x) : ;';
46 eval_ok 'my ($x,$y) : = 0;';
47 eval_ok 'my ($x,$y) ;';
48 eval_ok 'my ($x,$y) : ;';
50 eval 'my ($x,$y) : plugh;';
51 like $@, qr/^Invalid SCALAR attribute: ["']?plugh["']? at/;
54 eval '{my $x : plugh}';
55 like $@, qr/^Invalid SCALAR attribute: ["']?plugh["']? at/;
56 eval '{my ($x,$y) : plugh(})}';
57 like $@, qr/^Invalid SCALAR attribute: ["']?plugh\(}\)["']? at/;
59 # More syntax tests from the attributes manpage
60 eval 'my $x : switch(10,foo(7,3)) : expensive;';
61 like $@, qr/^Invalid SCALAR attributes: ["']?switch\(10,foo\(7,3\)\) : expensive["']? at/;
62 eval q/my $x : Ugly('\(") :Bad;/;
63 like $@, qr/^Invalid SCALAR attributes: ["']?Ugly\('\\\("\) : Bad["']? at/;
65 like $@, qr/^Invalid SCALAR attribute: ["']?_5x5["']? at/;
66 eval 'my $x : locked method;';
67 like $@, qr/^Invalid SCALAR attributes: ["']?locked : method["']? at/;
68 eval 'my $x : switch(10,foo();';
69 like $@, qr/^Unterminated attribute parameter in attribute list at/;
70 eval q/my $x : Ugly('(');/;
71 like $@, qr/^Unterminated attribute parameter in attribute list at/;
74 eval 'my $x : Y2::north;';
75 like $@, qr/Invalid separator character ':' in attribute list at/;
77 sub A::MODIFY_SCALAR_ATTRIBUTES { return }
78 eval 'my A $x : plugh;';
79 like $@, qr/^SCALAR package attribute may clash with future reserved word: ["']?plugh["']? at/;
81 eval 'my A $x : plugh plover;';
82 like $@, qr/^SCALAR package attributes may clash with future reserved words: ["']?plugh["']? /;
84 no warnings 'reserved';
85 eval 'my A $x : plugh;';
88 eval 'package Cat; my Cat @socks;';
94 sub X::MODIFY_CODE_ATTRIBUTES { die "$_[0]" }
97 *Y::bar = \&X::foo; # second time for -w
98 eval 'package Z; sub Y::bar : foo';
101 @attrs = eval 'attributes::get $anon1';
102 is "@attrs", "method";
105 sub Z::FETCH_CODE_ATTRIBUTES { return 'Z' }
106 my $thunk = eval 'bless +sub : method { 1 }, "Z"';
109 @attrs = eval 'attributes::get $thunk';
110 is "@attrs", "method Z";
112 # Test attributes on predeclared subroutines:
113 eval 'package A; sub PS : lvalue';
114 @attrs = eval 'attributes::get \&A::PS';
115 is "@attrs", "lvalue";
117 # Test ability to modify existing sub's (or XSUB's) attributes.
118 eval 'package A; sub X { $_[0] } sub X : lvalue';
119 @attrs = eval 'attributes::get \&A::X';
120 is "@attrs", "lvalue";
122 # Above not with just 'pure' built-in attributes.
123 sub Z::MODIFY_CODE_ATTRIBUTES { (); }
124 eval 'package Z; sub L { $_[0] } sub L : Z lvalue';
125 @attrs = eval 'attributes::get \&Z::L';
126 is "@attrs", "lvalue Z";
128 # Begin testing attributes that tie
133 sub TIESCALAR { my $x = $_[1]; bless \$x, $_[0]; }
134 sub FETCH { ${$_[0]} }
140 sub MODIFY_SCALAR_ATTRIBUTES { tie ${$_[1]}, 'Ttie', -1; (); }
146 my $x : TieLoop = $i;
147 $x != $i*2 and ::is $x, $i*2;
152 eval 'our ${""} : foo = 1';
153 like $@, qr/Can't declare scalar dereference in "our"/;
154 eval 'my $$foo : bar = 1';
155 like $@, qr/Can't declare scalar dereference in "my"/;
158 my @code = qw(lvalue method);
159 my @other = qw(shared);
160 my @deprecated = qw(locked unique);
162 $valid{CODE} = {map {$_ => 1} @code};
163 $valid{SCALAR} = {map {$_ => 1} @other};
164 $valid{ARRAY} = $valid{HASH} = $valid{SCALAR};
166 $deprecated{CODE} = { locked => 1 };
167 $deprecated{ARRAY} = $deprecated{HASH} = $deprecated{SCALAR} = { unique => 1 };
169 our ($scalar, @array, %hash);
170 foreach my $value (\&foo, \$scalar, \@array, \%hash) {
171 my $type = ref $value;
172 foreach my $negate ('', '-') {
173 foreach my $attr (@code, @other, @deprecated) {
174 my $attribute = $negate . $attr;
175 eval "use attributes __PACKAGE__, \$value, '$attribute'";
176 if ($deprecated{$type}{$attr}) {
177 like $@, qr/^Attribute "$attr" is deprecated at \(eval \d+\)/,
178 "$type attribute $attribute deprecated";
179 } elsif ($valid{$type}{$attr}) {
180 if ($attribute eq '-shared') {
181 like $@, qr/^A variable may not be unshared/;
183 is( $@, '', "$type attribute $attribute");
186 like $@, qr/^Invalid $type attribute: $attribute/,
187 "Bogus $type attribute $attribute should fail";
193 # this will segfault if it fails
194 sub PVBM () { 'foo' }
195 { my $dummy = index 'foo', PVBM }
197 ok !defined(attributes::get(\PVBM)),
198 'PVBMs don\'t segfault attributes::get';