| 1 | ============================================================================== |
| 2 | Release of version 0.77 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 | 0.77 Sat Jun 8 22:58:56 CEST 2002 |
| 55 | |
| 56 | - Since Attribute::Handlers now is core, I will refer to changes |
| 57 | with their patch number, please read Porting/repository.pod from |
| 58 | your a perl tarball for more information. |
| 59 | |
| 60 | - Brought up to date with perl 5.8RC1 version |
| 61 | will be 5.8 if no more changes come in |
| 62 | |
| 63 | - [#13686] This changes the behaviour of lexical attributes. |
| 64 | Prior to this lexical attributes were done at a compile time, |
| 65 | and they would loose their attribute on the next run over them. |
| 66 | Now perl 5.8 calls the attribute handler runtime whenever it hits my. |
| 67 | |
| 68 | - [#14448] Fixes cases with too high refcounts on lexical attributes |
| 69 | |
| 70 | - [#15945] Do not warn about too late CHECK and INIT block if |
| 71 | A::H is pulled in using a require. |
| 72 | |
| 73 | |
| 74 | ============================================================================== |
| 75 | |
| 76 | AVAILABILITY |
| 77 | |
| 78 | Attribute::Handlers has been uploaded to the CPAN |
| 79 | and is also available from: |
| 80 | |
| 81 | http://www.csse.monash.edu.au/~damian/CPAN/Attribute-Handlers.tar.gz |
| 82 | |
| 83 | ============================================================================== |