MooseX::OneArgNew(3) User Contributed Perl Documentation MooseX::OneArgNew(3)NAMEMooseX::OneArgNew - teach ->new to accept single, non-hashref arguments
VERSION
version 0.002
SYNOPSIS
In our class definition:
package Delivery;
use Moose;
with('MooseX::OneArgNew' => {
type => 'Existing::Message::Type',
init_arg => 'message',
});
has message => (isa => 'Existing::Message::Type', required => 1);
has to => (
is => 'ro',
isa => 'Str',
lazy => 1,
default => sub {
my ($self) = @_;
$self->message->get('To');
},
);
When making a message:
# The traditional way:
my $delivery = Delivery->new({ message => $message });
# or
my $delivery = Delivery->new({ message => $message, to => $to });
# With one-arg new:
my $delivery = Delivery->new($message);
DESCRIPTIONMooseX::OneArgNew lets your constructor take a single argument, which
will be translated into the value for a one-entry hashref. It is a
parameterized role with two parameters:
type
The Moose type that the single argument must be for the one-arg
form to work. This should be an existing type, and may be either a
string type or a MooseX::Type.
init_arg
This is the string that will be used as the key for the hashref
constructed from the one-arg call to new.
WARNINGS
You can apply MooseX::OneArgNew more than once, but if more than one
application's type matches a single argument to "new", the behavior is
undefined and likely to cause bugs.
It would be a very bad idea to supply a type that could accept a normal
hashref of arguments to "new".
AUTHOR
Ricardo Signes <rjbs@cpan.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2011 by Ricardo Signes.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
perl v5.14.1 2011-06-15 MooseX::OneArgNew(3)
