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perl5db: add tests for v command
[perl5.git] / t / uni / attrs.t
CommitLineData
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1#!./perl
2
3# Regression tests for attributes.pm and the C< : attrs> syntax.
4
5BEGIN {
6 chdir 't' if -d 't';
89a5757c 7 require './test.pl';
624c42e2 8 set_up_inc('../lib');
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9 skip_all_if_miniperl("miniperl can't load attributes");
10}
11
12use utf8;
13use open qw( :utf8 :std );
14use warnings;
15use feature 'unicode_strings';
16
17$SIG{__WARN__} = sub { die @_ };
18
19sub eval_ok ($;$) {
20 eval shift;
21 is( $@, '', @_);
22}
23
20e5bab4 24fresh_perl_is 'use attributes; print "ok"', 'ok', {},
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25 'attributes.pm can load without warnings.pm already loaded';
26
27eval 'sub è1 ($) : plùgh ;';
28like $@, qr/^Invalid CODE attributes?: ["']?plùgh["']? at/;
29
30eval 'sub ɛ2 ($) : plǖgh(0,0) xyzzy ;';
31like $@, qr/^Invalid CODE attributes: ["']?plǖgh\(0,0\)["']? /;
32
33eval 'my ($x,$y) : plǖgh;';
34like $@, qr/^Invalid SCALAR attribute: ["']?plǖgh["']? at/;
35
36# bug #16080
37eval '{my $x : plǖgh}';
38like $@, qr/^Invalid SCALAR attribute: ["']?plǖgh["']? at/;
39eval '{my ($x,$y) : plǖgh(})}';
92e8e650 40like $@, qr/^Invalid SCALAR attribute: ["']?plǖgh\(\}\)["']? at/;
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41
42# More syntax tests from the attributes manpage
43eval 'my $x : Şʨᚻ(10,ᕘ(7,3)) : 에ㄒ펜ሲ;';
44like $@, qr/^Invalid SCALAR attributes: ["']?Şʨᚻ\(10,ᕘ\(7,3\)\) : 에ㄒ펜ሲ["']? at/;
45eval q/my $x : Ugļᑈ('\(") :받;/;
46like $@, qr/^Invalid SCALAR attributes: ["']?Ugļᑈ\('\\\("\) : 받["']? at/;
47eval 'my $x : Şʨᚻ(10,ᕘ();';
48like $@, qr/^Unterminated attribute parameter in attribute list at/;
49eval q/my $x : Ugļᑈ('(');/;
50like $@, qr/^Unterminated attribute parameter in attribute list at/;
51
52sub A::MODIFY_SCALAR_ATTRIBUTES { return }
53eval 'my A $x : plǖgh;';
54like $@, qr/^SCALAR package attribute may clash with future reserved word: ["']?plǖgh["']? at/;
55
56eval 'my A $x : plǖgh plover;';
57like $@, qr/^SCALAR package attributes may clash with future reserved words: ["']?plǖgh["']? /;
58
59no warnings 'reserved';
60eval 'my A $x : plǖgh;';
61is $@, '';
62
63eval 'package Càt; my Càt @socks;';
aaa63dae 64is $@, '';
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65
66eval 'my Càt %nap;';
aaa63dae 67is $@, '';
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68
69sub X::MODIFY_CODE_ATTRIBUTES { die "$_[0]" }
70sub X::ᕘ { 1 }
71*Y::bar = \&X::ᕘ;
72*Y::bar = \&X::ᕘ; # second time for -w
73eval 'package Z; sub Y::bar : ᕘ';
74like $@, qr/^X at /;
75
76# Begin testing attributes that tie
77
78{
79 package Ttìè;
80 sub DESTROY {}
81 sub TIESCALAR { my $x = $_[1]; bless \$x, $_[0]; }
82 sub FETCH { ${$_[0]} }
83 sub STORE {
84 ::pass;
85 ${$_[0]} = $_[1]*2;
86 }
87 package Tlòòp;
88 sub MODIFY_SCALAR_ATTRIBUTES { tie ${$_[1]}, 'Ttìè', -1; (); }
89}
90
91eval_ok '
92 package Tlòòp;
93 for my $i (0..2) {
94 my $x : TìèLòòp = $i;
95 $x != $i*2 and ::is $x, $i*2;
96 }
97';
98
99# bug #15898
100eval 'our ${""} : ᕘ = 1';
101like $@, qr/Can't declare scalar dereference in "our"/;
102eval 'my $$ᕘ : bar = 1';
103like $@, qr/Can't declare scalar dereference in "my"/;
104
105
106# this will segfault if it fails
107sub PVBM () { 'ᕘ' }
108{ my $dummy = index 'ᕘ', PVBM }
109
110ok !defined(eval 'attributes::get(\PVBM)'),
111 'PVBMs don\'t segfault attributes::get';
112
113{
114 # [perl #49472] Attributes + Unknown Error
115 eval '
116 use strict;
117 sub MODIFY_CODE_ATTRIBUTE{}
118 sub f:Blah {$nosuchvar};
119 ';
120
121 my $err = $@;
122 like ($err, qr/Global symbol "\$nosuchvar" requires /, 'perl #49472');
123}
124
125# Test that code attributes always get applied to the same CV that
126# we're left with at the end (bug#66970).
127{
128 package bug66970;
129 our $c;
130 sub MODIFY_CODE_ATTRIBUTES { $c = $_[1]; () }
131 $c=undef; eval 'sub t0 :ᕘ';
132 main::ok $c == \&{"t0"};
133 $c=undef; eval 'sub t1 :ᕘ { }';
134 main::ok $c == \&{"t1"};
135 $c=undef; eval 'sub t2';
136 our $t2a = \&{"t2"};
137 $c=undef; eval 'sub t2 :ᕘ';
138 main::ok $c == \&{"t2"} && $c == $t2a;
139 $c=undef; eval 'sub t3';
140 our $t3a = \&{"t3"};
141 $c=undef; eval 'sub t3 :ᕘ { }';
142 main::ok $c == \&{"t3"} && $c == $t3a;
143 $c=undef; eval 'sub t4 :ᕘ';
144 our $t4a = \&{"t4"};
145 our $t4b = $c;
146 $c=undef; eval 'sub t4 :ᕘ';
147 main::ok $c == \&{"t4"} && $c == $t4b && $c == $t4a;
148 $c=undef; eval 'sub t5 :ᕘ';
149 our $t5a = \&{"t5"};
150 our $t5b = $c;
151 $c=undef; eval 'sub t5 :ᕘ { }';
152 main::ok $c == \&{"t5"} && $c == $t5b && $c == $t5a;
153}
154
155# [perl #68560] Calling closure prototypes (only accessible via :attr)
156{
157 package brength;
158 my $proto;
159 sub MODIFY_CODE_ATTRIBUTES { $proto = $_[1]; _: }
160 eval q{
161 my $x;
162 () = sub :a0 { $x };
163 };
164 package main;
165 eval { $proto->() }; # used to crash in pp_entersub
166 like $@, qr/^Closure prototype called/,
167 "Calling closure proto with (no) args";
168 eval { () = &$proto }; # used to crash in pp_leavesub
169 like $@, qr/^Closure prototype called/,
170 'Calling closure proto with no @_ that returns a lexical';
171}
172
173# [perl #68658] Attributes on stately variables
174{
175 package thwext;
176 sub MODIFY_SCALAR_ATTRIBUTES { () }
177 my $i = 0;
178 my $x_values = '';
179 eval 'sub ᕘ { use 5.01; state $x :A0 = $i++; $x_values .= $x }';
180 ᕘ(); ᕘ();
181 package main;
182 is $x_values, '00', 'state with attributes';
183}
184
185{
186 package 닌g난ㄬ;
187 sub MODIFY_SCALAR_ATTRIBUTES{}
188 sub MODIFY_ARRAY_ATTRIBUTES{ }
189 sub MODIFY_HASH_ATTRIBUTES{ }
190 my ($cows, @go, %bong) : テa퐅Š = qw[ jibber jabber joo ];
191 ::is $cows, 'jibber', 'list assignment to scalar with attrs';
192 ::is "@go", 'jabber joo', 'list assignment to array with attrs';
193}
194
195done_testing();