Commit | Line | Data |
3fea05b9 |
1 | use strict; |
2 | use warnings; |
3 | |
4 | package B::Hooks::EndOfScope; |
5 | |
6 | use 5.008000; |
7 | use Variable::Magic; |
8 | |
9 | our $VERSION = '0.08'; |
10 | |
11 | use Sub::Exporter -setup => { |
12 | exports => ['on_scope_end'], |
13 | groups => { default => ['on_scope_end'] }, |
14 | }; |
15 | |
16 | =head1 NAME |
17 | |
18 | B::Hooks::EndOfScope - Execute code after a scope finished compilation |
19 | |
20 | =head1 SYNOPSIS |
21 | |
22 | on_scope_end { ... }; |
23 | |
24 | =head1 DESCRIPTION |
25 | |
26 | This module allows you to execute code when perl finished compiling the |
27 | surrounding scope. |
28 | |
29 | =head1 FUNCTIONS |
30 | |
31 | =head2 on_scope_end |
32 | |
33 | on_scope_end { ... }; |
34 | |
35 | on_scope_end $code; |
36 | |
37 | Registers C<$code> to be executed after the surrounding scope has been |
38 | compiled. |
39 | |
40 | This is exported by default. See L<Sub::Exporter> on how to customize it. |
41 | |
42 | =cut |
43 | |
44 | { |
45 | my $wiz = Variable::Magic::wizard |
46 | data => sub { [$_[1]] }, |
47 | free => sub { $_->() for @{ $_[1] }; () }; |
48 | |
49 | sub on_scope_end (&) { |
50 | my $cb = shift; |
51 | |
52 | $^H |= 0x020000; |
53 | |
54 | if (my $stack = Variable::Magic::getdata %^H, $wiz) { |
55 | push @{ $stack }, $cb; |
56 | } |
57 | else { |
58 | Variable::Magic::cast %^H, $wiz, $cb; |
59 | } |
60 | } |
61 | } |
62 | |
63 | =head1 SEE ALSO |
64 | |
65 | L<Sub::Exporter> |
66 | |
67 | L<Variable::Magic> |
68 | |
69 | =head1 AUTHOR |
70 | |
71 | Florian Ragwitz E<lt>rafl@debian.orgE<gt> |
72 | |
73 | =head1 COPYRIGHT AND LICENSE |
74 | |
75 | Copyright (c) 2008 Florian Ragwitz |
76 | |
77 | This module is free software. |
78 | |
79 | You may distribute this code under the same terms as Perl itself. |
80 | |
81 | =cut |
82 | |
83 | 1; |