3 # Regression tests for attributes.pm and the C< : attrs> syntax.
15 $SIG{__WARN__} = sub { die @_ };
22 our $anon1; eval_ok '$anon1 = sub : method { $_[0]++ }';
24 eval 'sub e1 ($) : plugh ;';
25 like $@, qr/^Invalid CODE attributes?: ["']?plugh["']? at/;
27 eval 'sub e2 ($) : plugh(0,0) xyzzy ;';
28 like $@, qr/^Invalid CODE attributes: ["']?plugh\(0,0\)["']? /;
30 eval 'sub e3 ($) : plugh(0,0 xyzzy ;';
31 like $@, qr/Unterminated attribute parameter in attribute list at/;
33 eval 'sub e4 ($) : plugh + xyzzy ;';
34 like $@, qr/Invalid separator character '[+]' in attribute list at/;
36 eval_ok 'my main $x : = 0;';
37 eval_ok 'my $x : = 0;';
39 eval_ok 'my ($x) : = 0;';
41 eval_ok 'my ($x) : ;';
42 eval_ok 'my ($x,$y) : = 0;';
43 eval_ok 'my ($x,$y) ;';
44 eval_ok 'my ($x,$y) : ;';
46 eval 'my ($x,$y) : plugh;';
47 like $@, qr/^Invalid SCALAR attribute: ["']?plugh["']? at/;
50 eval '{my $x : plugh}';
51 like $@, qr/^Invalid SCALAR attribute: ["']?plugh["']? at/;
52 eval '{my ($x,$y) : plugh(})}';
53 like $@, qr/^Invalid SCALAR attribute: ["']?plugh\(}\)["']? at/;
55 # More syntax tests from the attributes manpage
56 eval 'my $x : switch(10,foo(7,3)) : expensive;';
57 like $@, qr/^Invalid SCALAR attributes: ["']?switch\(10,foo\(7,3\)\) : expensive["']? at/;
58 eval q/my $x : Ugly('\(") :Bad;/;
59 like $@, qr/^Invalid SCALAR attributes: ["']?Ugly\('\\\("\) : Bad["']? at/;
61 like $@, qr/^Invalid SCALAR attribute: ["']?_5x5["']? at/;
62 eval 'my $x : locked method;';
63 like $@, qr/^Invalid SCALAR attributes: ["']?locked : method["']? at/;
64 eval 'my $x : switch(10,foo();';
65 like $@, qr/^Unterminated attribute parameter in attribute list at/;
66 eval q/my $x : Ugly('(');/;
67 like $@, qr/^Unterminated attribute parameter in attribute list at/;
70 eval 'my $x : Y2::north;';
71 like $@, qr/Invalid separator character ':' in attribute list at/;
73 sub A::MODIFY_SCALAR_ATTRIBUTES { return }
74 eval 'my A $x : plugh;';
75 like $@, qr/^SCALAR package attribute may clash with future reserved word: ["']?plugh["']? at/;
77 eval 'my A $x : plugh plover;';
78 like $@, qr/^SCALAR package attributes may clash with future reserved words: ["']?plugh["']? /;
80 no warnings 'reserved';
81 eval 'my A $x : plugh;';
84 eval 'package Cat; my Cat @socks;';
90 sub X::MODIFY_CODE_ATTRIBUTES { die "$_[0]" }
93 *Y::bar = \&X::foo; # second time for -w
94 eval 'package Z; sub Y::bar : foo';
97 @attrs = eval 'attributes::get $anon1';
98 is "@attrs", "method";
101 sub Z::FETCH_CODE_ATTRIBUTES { return 'Z' }
102 my $thunk = eval 'bless +sub : method { 1 }, "Z"';
105 @attrs = eval 'attributes::get $thunk';
106 is "@attrs", "method Z";
108 # Test attributes on predeclared subroutines:
109 eval 'package A; sub PS : lvalue';
110 @attrs = eval 'attributes::get \&A::PS';
111 is "@attrs", "lvalue";
113 # Test ability to modify existing sub's (or XSUB's) attributes.
114 eval 'package A; sub X { $_[0] } sub X : lvalue';
115 @attrs = eval 'attributes::get \&A::X';
116 is "@attrs", "lvalue";
118 # Above not with just 'pure' built-in attributes.
119 sub Z::MODIFY_CODE_ATTRIBUTES { (); }
120 eval 'package Z; sub L { $_[0] } sub L : Z lvalue';
121 @attrs = eval 'attributes::get \&Z::L';
122 is "@attrs", "lvalue Z";
124 # Begin testing attributes that tie
129 sub TIESCALAR { my $x = $_[1]; bless \$x, $_[0]; }
130 sub FETCH { ${$_[0]} }
136 sub MODIFY_SCALAR_ATTRIBUTES { tie ${$_[1]}, 'Ttie', -1; (); }
142 my $x : TieLoop = $i;
143 $x != $i*2 and ::is $x, $i*2;
148 eval 'our ${""} : foo = 1';
149 like $@, qr/Can't declare scalar dereference in "our"/;
150 eval 'my $$foo : bar = 1';
151 like $@, qr/Can't declare scalar dereference in "my"/;
154 my @code = qw(lvalue method);
155 my @other = qw(shared);
156 my @deprecated = qw(locked unique);
158 $valid{CODE} = {map {$_ => 1} @code};
159 $valid{SCALAR} = {map {$_ => 1} @other};
160 $valid{ARRAY} = $valid{HASH} = $valid{SCALAR};
162 $deprecated{CODE} = { locked => 1 };
163 $deprecated{ARRAY} = $deprecated{HASH} = $deprecated{SCALAR} = { unique => 1 };
165 our ($scalar, @array, %hash);
166 foreach my $value (\&foo, \$scalar, \@array, \%hash) {
167 my $type = ref $value;
168 foreach my $negate ('', '-') {
169 foreach my $attr (@code, @other, @deprecated) {
170 my $attribute = $negate . $attr;
171 eval "use attributes __PACKAGE__, \$value, '$attribute'";
172 if ($deprecated{$type}{$attr}) {
173 like $@, qr/^Attribute "$attr" is deprecated at \(eval \d+\)/,
174 "$type attribute $attribute deprecated";
175 } elsif ($valid{$type}{$attr}) {
176 if ($attribute eq '-shared') {
177 like $@, qr/^A variable may not be unshared/;
179 is( $@, '', "$type attribute $attribute");
182 like $@, qr/^Invalid $type attribute: $attribute/,
183 "Bogus $type attribute $attribute should fail";
189 # this will segfault if it fails
190 sub PVBM () { 'foo' }
191 { my $dummy = index 'foo', PVBM }
193 ok !defined(attributes::get(\PVBM)),
194 'PVBMs don\'t segfault attributes::get';