https://perl5.git.perl.org / perl5.git / blame
| Commit | Line | Data |
|---|---|---|
| 0e9b9e0c JH |
1 | ============================================================================== |
| 2 | Release of version 0.76 of Attribute::Handlers | |
| 3 | ============================================================================== | |
| 4 | ||
| 5 | ||
| 6 | NAME | |
| 7 | Attribute::Handlers - Simpler definition of attribute handlers | |
| 8 | ||
| 9 | DESCRIPTION | |
| 10 | This module, when inherited by a package, allows that package's class to | |
| 11 | define attribute handler subroutines for specific attributes. Variables | |
| 12 | and subroutines subsequently defined in that package, or in packages | |
| 13 | derived from that package may be given attributes with the same names as | |
| 14 | the attribute handler subroutines, which will then be called at the end | |
| 15 | of the compilation phase (i.e. in a `CHECK' block). | |
| 16 | ||
| 17 | EXAMPLE | |
| 18 | ||
| 19 | package UNIVERSAL; | |
| 20 | use Attribute::Handlers; | |
| 21 | ||
| 22 | my %name; | |
| 23 | sub name { return $name{$_[2]}||*{$_[1]}{NAME} } | |
| 24 | ||
| 25 | sub Name :ATTR { $name{$_[2]} = $_[4] } | |
| 26 | ||
| 27 | sub Purpose :ATTR { print STDERR "Purpose of ", &name, " is $_[4]\n" } | |
| 28 | ||
| 29 | sub Unit :ATTR { print STDERR &name, " measured in $_[4]\n" } | |
| 30 | ||
| 31 | ||
| 32 | package main; | |
| 33 | ||
| 34 | my $capacity : Name(capacity) | |
| 35 | : Purpose(to store max storage capacity for files) | |
| 36 | : Unit(Gb); | |
| 37 | ||
| 38 | package Other; | |
| 39 | ||
| 40 | sub foo : Purpose(to foo all data before barring it) { } | |
| 41 | ||
| 42 | ||
| 43 | AUTHOR | |
| 44 | Damian Conway (damian@conway.org) | |
| 45 | ||
| 46 | COPYRIGHT | |
| 47 | Copyright (c) 2001, Damian Conway. All Rights Reserved. | |
| 48 | This module is free software. It may be used, redistributed | |
| 49 | and/or modified under the same terms as Perl itself. | |
| 50 | ||
| 51 | ||
| 52 | ============================================================================== | |
| 53 | ||
| 54 | CHANGES IN VERSION 0.76 | |
| 55 | ||
| 56 | ||
| 57 | - Fixed documentation nit (thanks Rick) | |
| 58 | ||
| 59 | - Improving intuitiveness of autotie mechanism (thanks Marcel) | |
| 60 | ||
| 61 | - Added $VERSION numbrs to demo modules (seems bizarre to me, but | |
| 62 | they're core too now). | |
| 63 | ||
| 64 | ||
| 65 | ============================================================================== | |
| 66 | ||
| 67 | AVAILABILITY | |
| 68 | ||
| 69 | Attribute::Handlers has been uploaded to the CPAN | |
| 70 | and is also available from: | |
| 71 | ||
| 72 | http://www.csse.monash.edu.au/~damian/CPAN/Attribute-Handlers.tar.gz | |
| 73 | ||
| 74 | ============================================================================== |