Re: RFC 193 (v1) Objects : Core support for method delegation

[David E. Wheeler]

Perl6 RFC Librarian wrote:
> 
> This and other RFCs are available on the web at
>   http://dev.perl.org/rfc/
> 
> =head1 TITLE
> 
> Objects : Core support for method delegation

This idea rocks, Damian! I want it now! Just one suggestion, however...

> The proposed delegation mechanism would work via a pragma:
> 
>         use delegation
>                 attr1 => [qw( method1 method2 method3 )],
>                 attr2 => [qw( method4 method5 )],
>                 attr3 => [],
>                 attr4 => [],
>                 # etc.
>                 ;


When I see those empty arrayrefs, I think "delegate to *no* methods in
those classes stored in attr3 and att4," rather than "delegate all
method calls to those attributes." Just in the name of greater clarity,
I might like to see something like URI suggested:

  attr3 => [ALL]

Or perhaps (to borrow from SQL and to ignore the question of typeglobs
for the moment):

  attr3 => [*]


This way, I know that an empty arrayref means "all methods" rather than
"none."

Comments?

Thanks

David