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|
#!./perl
# Regression tests for attributes.pm and the C< : attrs> syntax.
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
require './test.pl';
skip_all_if_miniperl("miniperl can't load attributes");
}
use utf8;
use open qw( :utf8 :std );
use warnings;
use feature 'unicode_strings';
$SIG{__WARN__} = sub { die @_ };
sub eval_ok ($;$) {
eval shift;
is( $@, '', @_);
}
fresh_perl_is 'use attributes; print "ok"', 'ok',
'attributes.pm can load without warnings.pm already loaded';
eval 'sub è1 ($) : plùgh ;';
like $@, qr/^Invalid CODE attributes?: ["']?plùgh["']? at/;
eval 'sub ɛ2 ($) : plǖgh(0,0) xyzzy ;';
like $@, qr/^Invalid CODE attributes: ["']?plǖgh\(0,0\)["']? /;
eval 'my ($x,$y) : plǖgh;';
like $@, qr/^Invalid SCALAR attribute: ["']?plǖgh["']? at/;
# bug #16080
eval '{my $x : plǖgh}';
like $@, qr/^Invalid SCALAR attribute: ["']?plǖgh["']? at/;
eval '{my ($x,$y) : plǖgh(})}';
like $@, qr/^Invalid SCALAR attribute: ["']?plǖgh\(}\)["']? at/;
# More syntax tests from the attributes manpage
eval 'my $x : Şʨᚻ(10,ᕘ(7,3)) : 에ㄒ펜ሲ;';
like $@, qr/^Invalid SCALAR attributes: ["']?Şʨᚻ\(10,ᕘ\(7,3\)\) : 에ㄒ펜ሲ["']? at/;
eval q/my $x : Ugļᑈ('\(") :받;/;
like $@, qr/^Invalid SCALAR attributes: ["']?Ugļᑈ\('\\\("\) : 받["']? at/;
eval 'my $x : Şʨᚻ(10,ᕘ();';
like $@, qr/^Unterminated attribute parameter in attribute list at/;
eval q/my $x : Ugļᑈ('(');/;
like $@, qr/^Unterminated attribute parameter in attribute list at/;
sub A::MODIFY_SCALAR_ATTRIBUTES { return }
eval 'my A $x : plǖgh;';
like $@, qr/^SCALAR package attribute may clash with future reserved word: ["']?plǖgh["']? at/;
eval 'my A $x : plǖgh plover;';
like $@, qr/^SCALAR package attributes may clash with future reserved words: ["']?plǖgh["']? /;
no warnings 'reserved';
eval 'my A $x : plǖgh;';
is $@, '';
eval 'package Càt; my Càt @socks;';
like $@, '';
eval 'my Càt %nap;';
like $@, '';
sub X::MODIFY_CODE_ATTRIBUTES { die "$_[0]" }
sub X::ᕘ { 1 }
*Y::bar = \&X::ᕘ;
*Y::bar = \&X::ᕘ; # second time for -w
eval 'package Z; sub Y::bar : ᕘ';
like $@, qr/^X at /;
# Begin testing attributes that tie
{
package Ttìè;
sub DESTROY {}
sub TIESCALAR { my $x = $_[1]; bless \$x, $_[0]; }
sub FETCH { ${$_[0]} }
sub STORE {
::pass;
${$_[0]} = $_[1]*2;
}
package Tlòòp;
sub MODIFY_SCALAR_ATTRIBUTES { tie ${$_[1]}, 'Ttìè', -1; (); }
}
eval_ok '
package Tlòòp;
for my $i (0..2) {
my $x : TìèLòòp = $i;
$x != $i*2 and ::is $x, $i*2;
}
';
# bug #15898
eval 'our ${""} : ᕘ = 1';
like $@, qr/Can't declare scalar dereference in "our"/;
eval 'my $$ᕘ : bar = 1';
like $@, qr/Can't declare scalar dereference in "my"/;
# this will segfault if it fails
sub PVBM () { 'ᕘ' }
{ my $dummy = index 'ᕘ', PVBM }
ok !defined(eval 'attributes::get(\PVBM)'),
'PVBMs don\'t segfault attributes::get';
{
# [perl #49472] Attributes + Unknown Error
eval '
use strict;
sub MODIFY_CODE_ATTRIBUTE{}
sub f:Blah {$nosuchvar};
';
my $err = $@;
like ($err, qr/Global symbol "\$nosuchvar" requires /, 'perl #49472');
}
# Test that code attributes always get applied to the same CV that
# we're left with at the end (bug#66970).
{
package bug66970;
our $c;
sub MODIFY_CODE_ATTRIBUTES { $c = $_[1]; () }
$c=undef; eval 'sub t0 :ᕘ';
main::ok $c == \&{"t0"};
$c=undef; eval 'sub t1 :ᕘ { }';
main::ok $c == \&{"t1"};
$c=undef; eval 'sub t2';
our $t2a = \&{"t2"};
$c=undef; eval 'sub t2 :ᕘ';
main::ok $c == \&{"t2"} && $c == $t2a;
$c=undef; eval 'sub t3';
our $t3a = \&{"t3"};
$c=undef; eval 'sub t3 :ᕘ { }';
main::ok $c == \&{"t3"} && $c == $t3a;
$c=undef; eval 'sub t4 :ᕘ';
our $t4a = \&{"t4"};
our $t4b = $c;
$c=undef; eval 'sub t4 :ᕘ';
main::ok $c == \&{"t4"} && $c == $t4b && $c == $t4a;
$c=undef; eval 'sub t5 :ᕘ';
our $t5a = \&{"t5"};
our $t5b = $c;
$c=undef; eval 'sub t5 :ᕘ { }';
main::ok $c == \&{"t5"} && $c == $t5b && $c == $t5a;
}
# [perl #68560] Calling closure prototypes (only accessible via :attr)
{
package brength;
my $proto;
sub MODIFY_CODE_ATTRIBUTES { $proto = $_[1]; _: }
eval q{
my $x;
() = sub :a0 { $x };
};
package main;
eval { $proto->() }; # used to crash in pp_entersub
like $@, qr/^Closure prototype called/,
"Calling closure proto with (no) args";
eval { () = &$proto }; # used to crash in pp_leavesub
like $@, qr/^Closure prototype called/,
'Calling closure proto with no @_ that returns a lexical';
}
# [perl #68658] Attributes on stately variables
{
package thwext;
sub MODIFY_SCALAR_ATTRIBUTES { () }
my $i = 0;
my $x_values = '';
eval 'sub ᕘ { use 5.01; state $x :A0 = $i++; $x_values .= $x }';
ᕘ(); ᕘ();
package main;
is $x_values, '00', 'state with attributes';
}
{
package 닌g난ㄬ;
sub MODIFY_SCALAR_ATTRIBUTES{}
sub MODIFY_ARRAY_ATTRIBUTES{ }
sub MODIFY_HASH_ATTRIBUTES{ }
my ($cows, @go, %bong) : テa퐅Š = qw[ jibber jabber joo ];
::is $cows, 'jibber', 'list assignment to scalar with attrs';
::is "@go", 'jabber joo', 'list assignment to array with attrs';
}
done_testing();
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