1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
#!/usr/bin/perl -w
use strict;
use warnings qw(FATAL all);
use lib 'lib';
use Test::More tests => 20;
use Data::Alias;
sub refs { [map "".\$_, @_] }
our $x = alias {};
is %$x, 0;
is_deeply alias({$_, 0}), {$_, 0} for 1 .. 3;
$x = alias {x => 42};
eval { $x->{x}++ };
like $@, qr/^Modification .* attempted /;
$x = alias {x => $x};
is_deeply [sort keys %$x], ["x"];
is_deeply refs($$x{x}), refs($x);
$x = alias {x => $x, y => our $y};
is_deeply [sort keys %$x], ["x", "y"];
is_deeply refs(@$x{"x", "y"}), refs($x, $y);
$x = alias {x => $x, y => $y, z => our $z};
is_deeply [sort keys %$x], ["x", "y", "z"];
is_deeply refs(@$x{"x", "y", "z"}), refs($x, $y, $z);
$x = alias {x => 1, x => 2, x => 3};
is $x->{x}, 3;
$x = alias {x => undef, y => $y, z => undef};
is keys %$x, 1;
is \$x->{y}, \$y;
ok !exists $x->{x};
ok !exists $x->{z};
no warnings 'misc';
$x = alias {x => $x, y => $y, y => };
is keys %$x, 1;
is \$x->{x}, \$x;
use warnings qw(FATAL misc);
$x = eval { alias {x => $x, y => } };
is $x, undef;
like $@, qr/^Odd number of elements in anonymous hash /;
# vim: ft=perl
|
