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lib/MooseX/DeepAccessors.pm  view on Meta::CPAN

package MooseX::DeepAccessors;
use Moose;
use Scalar::Util qw(blessed);
our $VERSION = '0.02';
extends 'Moose::Meta::Attribute';

has deep_accessors => ( is => 'ro', isa => 'HashRef', default => sub { {} } );

after 'attach_to_class' => sub {
    my ($attr, $class) = @_;

    foreach my $method_name (keys %{ $attr->deep_accessors }) {
        $class->add_method($method_name, 
            $attr->generate_deep_accessor($attr->deep_accessors->{$method_name})
        );
    }
};

sub generate_deep_accessor {
    my ($attr, $spec) = @_;
    my $attrname = $attr->name;
    my ($delegate_method, $callbacks) = %$spec;
    
    sub { 
        my $self = shift; 
        my $value = $self->$attrname;
        my @method_params = map { $self->$_ } @$callbacks;
        return $value->$delegate_method( @method_params );
    };
}

1;

package Moose::Meta::Attribute::Custom::MyDeepAccessors;

sub register_implementation {
    'MooseX::DeepAccessors'
}

1;


__END__
=head1 NAME

MooseX::DeepAccessors - Delegate methods to member objects, curried with more methods!

=head1 VERSION

Version 0.02

=cut



=head1 SYNOPSIS

    package MyClass;

    use Moose;
    use MooseX::DeepAccessors;

    has foo => (
        isa => 'Str',
        is => 'ro',
        required => 0,
    );