Re: Java annotation/.NET attributes in Moose

On Wed, Oct 19, 2011 at 4:19 AM, Sherwin Daganato <[email protected]>wrote:

> Has anyone here got any idea how to implement Java annotation[1] or
> .NET attributes[2] with Moose? I'm particularly interested in how it
> can be applied to a Moose class and attribute.
>
> Right now I'm looking into MooseX-Role-Parameterized to create
> parameterized metaclass and attribute traits. It seems to be a fit for
> what I want to do, except that the role block which it requires will
> be empty.
>
> Anyone with a more elegant solution?
>
> [1] http://en.wikipedia.org/wiki/Java_annotation
> [2] http://en.wikipedia.org/wiki/.NET_metadata#Attributes
>

You don't really need Moose to emulate .NET attributes*; vanilla Perl has
subroutine attributes:
http://perldoc.perl.org/Attribute/Handlers.html
http://perldoc.perl.org/attributes.html

But honestly, why would you want to do that? Trying to program X in Y is
always a code smell. In what little Moose I've done, a trait has always been
the best fit for this sort of thing.

*Though there's probably a MooseX module out there that will handle things
for you. Just saying that it might be overkill.