factory-fole-example.pl

# declaration:

class Foo {

    with 'App::StaticPressure::API::Factory' => {
        classes => {
            parser  => 'Markdent::Parser',
            handler => {
                default     => 'App::StaticPressure::Engine::Markdown::Handler',
                build_args  => sub { title => 'none' },
            },
        },
    };

    # same as $self->handler_class->new(title => 'none', foo => 23);
    method make_handler (%args) {
        return $self->_new_handler(foo => 23);
    }
}

# usage:

# 'Markdent::Parser'
say Foo->new->parser_class;

# 'My::Parser'
say Foo->new(parser_class => 'My::Parser')->parser_class;