Class::Field - Class Field Accessor Generator
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;
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.
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 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.
This code was taken directly out the Spiffy module for those people who just want this functionality without using the rest of Spiffy.
Ingy döt Net <ingy@cpan.org>
Copyright (c) 2006. Ingy döt Net. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.