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
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
#!perl -T
use strict;
use warnings;
use Test::More tests => 2 + 2 * 6 + 3 * 2;
use Scope::Upper qw<uplevel HERE UP>;
{
our $x = 1;
sub {
local $x = 2;
sub {
local $x = 3;
uplevel { is $x, 3, 'global variables scoping 1' } HERE;
}->();
}->();
}
{
our $x = 4;
sub {
local $x = 5;
sub {
local $x = 6;
uplevel { is $x, 6, 'global variables scoping 2' } UP;
}->();
}->();
}
sub {
'abc' =~ /(.)/;
is $1, 'a', 'match variables scoping 1: before 1';
sub {
'uvw' =~ /(.)/;
is $1, 'u', 'match variables scoping 1: before 2';
uplevel {
is $1, 'u', 'match variables scoping 1: before 3';
'xyz' =~ /(.)/;
is $1, 'x', 'match variables scoping 1: after 1';
} HERE;
is $1, 'u', 'match variables scoping 1: after 2';
}->();
is $1, 'a', 'match variables scoping 1: after 3';
}->();
sub {
'abc' =~ /(.)/;
is $1, 'a', 'match variables scoping 2: before 1';
sub {
'uvw' =~ /(.)/;
is $1, 'u', 'match variables scoping 2: before 2';
uplevel {
is $1, 'u', 'match variables scoping 2: before 3';
'xyz' =~ /(.)/;
is $1, 'x', 'match variables scoping 2: after 1';
} UP;
is $1, 'u', 'match variables scoping 2: after 2';
}->();
is $1, 'a', 'match variables scoping 2: after 3';
}->();
SKIP: {
skip 'No state variables before perl 5.10' => 3 * 2 unless "$]" >= 5.010;
my $desc = 'state variables';
{
local $@;
eval 'use feature "state"; sub herp { state $id = 123; return ++$id }';
die $@ if $@;
}
sub derp {
sub {
&uplevel(\&herp => UP);
}->();
}
for my $run (1 .. 3) {
local $@;
my $ret = eval {
derp()
};
is $@, '', "$desc: run $run did not croak";
is $ret, 123 + $run, "$desc: run $run returned the correct value";
}
}
|
