Lots of files got moved around,a nd some got added.

[gitmo/MooseX-AttributeHelpers.git] / lib / MooseX / AttributeHelpers / Composite / Trait.pm

package MooseX::AttributeHelpers::Composite::Trait;
use Moose::Role;
use MooseX::AttributeHelpers::MethodProvider;
use MooseX::AttributeHelpers::Meta::Method::Provided;

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

after install_accessors => sub {
    my $attr  = shift;
    my $class = $attr->associated_class;

    my $provides = $attr->provides;

    foreach my $method_provider (keys %$provides) {
        my $typename = get_provider_type($method_provider);
        confess "Attribute must be of type $typename to use $method_provider"
            unless ($attr->has_type_constraint
                    && $attr->type_constraint->is_a_type_of($typename));
    
        my $spec = $provides->{$method_provider};
        my $factories = get_provider_methods($method_provider, $spec);

        foreach my $method_name (keys %$factories) {
            confess "$method_name already exists in class " . $class->name
                if $class->has_method($method_name);

            my $method = MooseX::AttributeHelpers::Meta::Method::Provided->wrap(
                $factories->{$method_name}->(
                    $attr, 
                    $attr->get_read_method_ref, 
                    $attr->get_write_method_ref
                ),
            );
            $attr->associate_method($method);
            $class->add_method($method_name => $method)
        }
    }
};

1;