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
55
56
57
58
59
|
use Contextual::Return;
sub foo {
return
VOID { $_[1] = 99 }
BOOL { @_ > 0 }
LIST { (@_) x 2 }
NUM { scalar @_ }
STR { join '|', @_ }
SCALAR { $_[0] }
SCALARREF { my $var = $_[0]; \$var }
HASHREF { { args => \@_} }
ARRAYREF { \@_ }
;
}
package Other;
use Test::More 'no_plan';
my @arg_lists = (
[99],
[],
[99..101],
);
for my $arg_list (@arg_lists) {
my $call = 'foo(' . join(q{,}, @{$arg_list}) . ')';
is_deeply [ ::foo(@{$arg_list}) ],
[(@{$arg_list})x2]
=> "list test on $call";
is do{ ::foo(@{$arg_list}) ? 'true' : 'false' },
do{ @{$arg_list} ? 'true' : 'false' }
=> "boolean test on $call";
is 0+::foo(@{$arg_list}), 0+@{$arg_list}
=> "number test on $call";
is "" . ::foo(@{$arg_list}),
join('|',@{$arg_list})
=> "string test on $call";
is ${::foo(@{$arg_list})},
$arg_list->[0]
=> "scalar test on $call";
is_deeply \%{::foo(@{$arg_list})},
{ args => $arg_list }
=> "hash test on $call";
is_deeply \@{::foo(@{$arg_list})},
\@{$arg_list}
=> "array test on $call";
}
my @real_args = 1..3;
::foo(@real_args);
is_deeply \@real_args, [1,99,3] => "arg changes stick"
|
