NAME
Class::Tiny::Immutable - Minimalist class construction, with read-only attributes
SYNOPSIS
In Person.pm:
package Person;
use Class::Tiny::Immutable qw( name );
1;In Employee.pm:
package Employee;
use parent 'Person';
use Class::Tiny::Immutable qw( ssn ), {
timestamp => sub { time } # lazy attribute with default
};
1;In example.pl:
use Employee;
my $obj = Employee->new; # dies, name and ssn attributes are required
my $obj = Employee->new( name => "Larry", ssn => "111-22-3333" );
my $name = $obj->name;
my $timestamp = $obj->timestamp;
# no attributes can be set
$obj->ssn("222-33-4444"); # dies
$obj->timestamp(time); # diesDESCRIPTION
Class::Tiny::Immutable is a wrapper around Class::Tiny which makes the generated attributes read-only, and required to be set in the object constructor if they do not have a lazy default defined. In other words, attributes are either "lazy" or "required".
METHODS
In addition to methods inherited from Class::Tiny, Class::Tiny::Immutable defines the following additional introspection method:
get_all_required_attributes_for
my @required = Class::Tiny::Immutable->get_all_required_attributes_for($class);Returns an unsorted list of required attributes known to Class::Tiny::Immutable for a class and its superclasses.
BUGS
Report any issues on the public bugtracker.
AUTHOR
Dan Book <dbook@cpan.org>
COPYRIGHT AND LICENSE
This software is Copyright (c) 2017 by Dan Book.
This is free software, licensed under:
The Artistic License 2.0 (GPL Compatible)