projects / OpenSPARC-T2-DV / blame
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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 | ============================================================================== |