NAME
Class::Field - Class Field Accessor Generator
VERSION
This document describes Class::Field version 0.24.
SYNOPSIS
package Thing;
use Class::Field qw'field const';
field 'this';
field 'list' => [];
field 'map' => {};
field 'that', -init => '$self->setup_that';
field 'circular_ref' => -weaken;
const 'answer' => 42;
DESCRIPTION
Class::Field exports two subroutines, field and const. These functions
are used to declare fields and constants in your class.
Class::Field generates custom code for each accessor that is optimized
for speed.
FUNCTIONS
field
Defines accessor methods for a field of your class:
package Example;
use base 'Parent';
use Class::Field qw'field const';
field 'foo';
field bar => [];
sub lalala {
my $self = shift;
$self->foo(42);
push @{$self->{bar}}, $self->foo;
}
The first parameter passed to field is the name of the attribute
being defined. Accessors can be given an optional default value. This
value will be returned if no value for the field has been set in the
object.
const
const bar => 42;
The const function is similar to <field> except that it is immutable.
It also does not store data in the object. You probably always want
to give a const a default value, otherwise the generated method will
be somewhat useless.
NOTE
This code was taken directly out the Spiffy module for those people who
just want this functionality without using the rest of Spiffy.
AUTHOR
Ingy döt Net <
[email protected]>
COPYRIGHT AND LICENSE
Copyright 2006-2019. Ingy döt Net.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
See
http://www.perl.com/perl/misc/Artistic.html
