dist/Attribute-Handlers/demo/demo_chain.pl


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

#! /usr/local/bin/perl -w

use Attribute::Handlers;

sub Prefix : ATTR {
  my ($glob, $sub) = @_[1,2];
  no warnings 'redefine';
  *$glob = sub {
                 print "This happens first\n";
                 $sub->(@_);
               };
}

sub Postfix : ATTR {
  my ($glob, $sub) = @_[1,2];
  no warnings 'redefine';
  *$glob = sub {
                 $sub->(@_);
                 print "This happens last\n";
               };
}

sub test : Postfix Prefix {
  print "Hello World\n";
}

test();